{ "summary": { "snap": { "added": [], "removed": [], "diff": [] }, "deb": { "added": [ "linux-image-6.8.0-124-generic", "linux-modules-6.8.0-124-generic" ], "removed": [ "linux-image-6.8.0-117-generic", "linux-modules-6.8.0-117-generic" ], "diff": [ "apparmor", "cloud-init", "libapparmor1", "libgcrypt20", "liblzma5", "linux-image-virtual", "snapd", "xxd", "xz-utils" ] } }, "diff": { "deb": [ { "name": "apparmor", "from_version": { "source_package_name": "apparmor", "source_package_version": "4.0.1really4.0.1-0ubuntu0.24.04.6", "version": "4.0.1really4.0.1-0ubuntu0.24.04.6" }, "to_version": { "source_package_name": "apparmor", "source_package_version": "4.0.1really4.0.1-0ubuntu0.24.04.7", "version": "4.0.1really4.0.1-0ubuntu0.24.04.7" }, "cves": [], "launchpad_bugs_fixed": [ 2148074, 2148074 ], "changes": [ { "cves": [], "log": [ "", " * Revert the removal of the nautilus profile (LP: #2148074):", " - d/p/u/delete-the-busybox-and-nautilus-profiles.patch ->", " d/p/u/delete-the-busybox-profile.patch", " * debian/apparmor.install:", " - Re-enable the nautilus profile", " - Install migration to clear nautilus failed thumbnail cache", " * Add migration to clear nautilus failed thumbnail cache (LP: #2148074):", " - debian/nautilus_thumbnail_cache_clear.sh", " * debian/apparmor.postinst: signal the need for a reboot upon upgrade", "" ], "package": "apparmor", "version": "4.0.1really4.0.1-0ubuntu0.24.04.7", "urgency": "medium", "distributions": "noble", "launchpad_bugs_fixed": [ 2148074, 2148074 ], "author": "Ryan Lee ", "date": "Mon, 13 Apr 2026 15:29:23 -0700" } ], "notes": null, "is_version_downgrade": false }, { "name": "cloud-init", "from_version": { "source_package_name": "cloud-init", "source_package_version": "25.3-0ubuntu1~24.04.1", "version": "25.3-0ubuntu1~24.04.1" }, "to_version": { "source_package_name": "cloud-init", "source_package_version": "26.1-0ubuntu1~24.04.1", "version": "26.1-0ubuntu1~24.04.1" }, "cves": [], "launchpad_bugs_fixed": [ 2146833 ], "changes": [ { "cves": [], "log": [ "", " * d/rules: replace DOWNSTREAM_VERSION with packaged DEB_VERSION value", " * d/p/0001-Revert-fix-DNS-resolution-performance-regression-dur.patch revert Ec2 URL change", " * d/p/0001-Revert-fix-support-bond-names-in-network_data.patch revert bond name change", " * refresh patches:", " - d/p/no-nocloud-network.patch", " - d/p/no-single-process.patch", " - d/p/grub-dpkg-support.patch", " - d/p/retain-setuptools.patch. Use PACKAGED_VERSION environment variable.", " build tools and tests.", " * Upstream snapshot based on upstream/main at 090026a3.", " * Upstream snapshot based on 26.1. (LP: #2146833).", " List of changes from upstream can be found at", " https://raw.githubusercontent.com/canonical/cloud-init/26.1/ChangeLog", "" ], "package": "cloud-init", "version": "26.1-0ubuntu1~24.04.1", "urgency": "medium", "distributions": "noble", "launchpad_bugs_fixed": [ 2146833 ], "author": "Chad Smith ", "date": "Mon, 30 Mar 2026 12:55:18 -0600" } ], "notes": null, "is_version_downgrade": false }, { "name": "libapparmor1", "from_version": { "source_package_name": "apparmor", "source_package_version": "4.0.1really4.0.1-0ubuntu0.24.04.6", "version": "4.0.1really4.0.1-0ubuntu0.24.04.6" }, "to_version": { "source_package_name": "apparmor", "source_package_version": "4.0.1really4.0.1-0ubuntu0.24.04.7", "version": "4.0.1really4.0.1-0ubuntu0.24.04.7" }, "cves": [], "launchpad_bugs_fixed": [ 2148074, 2148074 ], "changes": [ { "cves": [], "log": [ "", " * Revert the removal of the nautilus profile (LP: #2148074):", " - d/p/u/delete-the-busybox-and-nautilus-profiles.patch ->", " d/p/u/delete-the-busybox-profile.patch", " * debian/apparmor.install:", " - Re-enable the nautilus profile", " - Install migration to clear nautilus failed thumbnail cache", " * Add migration to clear nautilus failed thumbnail cache (LP: #2148074):", " - debian/nautilus_thumbnail_cache_clear.sh", " * debian/apparmor.postinst: signal the need for a reboot upon upgrade", "" ], "package": "apparmor", "version": "4.0.1really4.0.1-0ubuntu0.24.04.7", "urgency": "medium", "distributions": "noble", "launchpad_bugs_fixed": [ 2148074, 2148074 ], "author": "Ryan Lee ", "date": "Mon, 13 Apr 2026 15:29:23 -0700" } ], "notes": null, "is_version_downgrade": false }, { "name": "libgcrypt20", "from_version": { "source_package_name": "libgcrypt20", "source_package_version": "1.10.3-2build1", "version": "1.10.3-2build1" }, "to_version": { "source_package_name": "libgcrypt20", "source_package_version": "1.10.3-2ubuntu0.1", "version": "1.10.3-2ubuntu0.1" }, "cves": [ { "cve": "CVE-2026-41989", "url": "https://ubuntu.com/security/CVE-2026-41989", "cve_description": "Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcry_pk_decrypt.", "cve_priority": "medium", "cve_public_date": "2026-04-23 05:16:00 UTC" } ], "launchpad_bugs_fixed": [], "changes": [ { "cves": [ { "cve": "CVE-2026-41989", "url": "https://ubuntu.com/security/CVE-2026-41989", "cve_description": "Libgcrypt before 1.12.2 sometimes allows a heap-based buffer overflow and denial of service via crafted ECDH ciphertext to gcry_pk_decrypt.", "cve_priority": "medium", "cve_public_date": "2026-04-23 05:16:00 UTC" } ], "log": [ "", " * SECURITY UPDATE: Heap-based buffer overflow via crafted ECDH ciphertext", " - debian/patches/CVE-2026-41989.patch: cipher:ecc: Fix decoding a point on", " Montgomery curve. in cipher/ecc-misc.c.", " - CVE-2026-41989", "" ], "package": "libgcrypt20", "version": "1.10.3-2ubuntu0.1", "urgency": "medium", "distributions": "noble-security", "launchpad_bugs_fixed": [], "author": "Marc Deslauriers ", "date": "Tue, 12 May 2026 14:17:24 +0200" } ], "notes": null, "is_version_downgrade": false }, { "name": "liblzma5", "from_version": { "source_package_name": "xz-utils", "source_package_version": "5.6.1+really5.4.5-1ubuntu0.2", "version": "5.6.1+really5.4.5-1ubuntu0.2" }, "to_version": { "source_package_name": "xz-utils", "source_package_version": "5.6.1+really5.4.5-1ubuntu0.3", "version": "5.6.1+really5.4.5-1ubuntu0.3" }, "cves": [ { "cve": "CVE-2026-34743", "url": "https://ubuntu.com/security/CVE-2026-34743", "cve_description": "XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzma_index_decoder() was used to decode an Index that contained no Records, the resulting lzma_index was left in a state where where a subsequent lzma_index_append() would allocate too little memory, and a buffer overflow would occur. This issue has been patched in version 5.8.3.", "cve_priority": "low", "cve_public_date": "2026-04-02 19:21:00 UTC" } ], "launchpad_bugs_fixed": [], "changes": [ { "cves": [ { "cve": "CVE-2026-34743", "url": "https://ubuntu.com/security/CVE-2026-34743", "cve_description": "XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzma_index_decoder() was used to decode an Index that contained no Records, the resulting lzma_index was left in a state where where a subsequent lzma_index_append() would allocate too little memory, and a buffer overflow would occur. This issue has been patched in version 5.8.3.", "cve_priority": "low", "cve_public_date": "2026-04-02 19:21:00 UTC" } ], "log": [ "", " * SECURITY UPDATE: heap buffer overflow", " - debian/patches/CVE-2026-34743.patch: adds a check to", " lzma_index_prealloc() to default to a safe size when decoding empty", " indexes in src/liblzma/common/index.c.", " - CVE-2026-34743", "" ], "package": "xz-utils", "version": "5.6.1+really5.4.5-1ubuntu0.3", "urgency": "medium", "distributions": "noble-security", "launchpad_bugs_fixed": [], "author": "Ian Constantin ", "date": "Thu, 28 May 2026 19:06:47 +0300" } ], "notes": null, "is_version_downgrade": false }, { "name": "linux-image-virtual", "from_version": { "source_package_name": "linux-meta", "source_package_version": "6.8.0-117.117", "version": "6.8.0-117.117" }, "to_version": { "source_package_name": "linux-meta", "source_package_version": "6.8.0-124.124", "version": "6.8.0-124.124" }, "cves": [], "launchpad_bugs_fixed": [], "changes": [ { "cves": [], "log": [ "", " * Main version: 6.8.0-124.124", "" ], "package": "linux-meta", "version": "6.8.0-124.124", "urgency": "medium", "distributions": "noble", "launchpad_bugs_fixed": [], "author": "Manuel Diewald ", "date": "Tue, 26 May 2026 12:11:17 +0200" }, { "cves": [], "log": [ "", " * Main version: 6.8.0-123.123", "" ], "package": "linux-meta", "version": "6.8.0-123.123", "urgency": "medium", "distributions": "noble", "launchpad_bugs_fixed": [], "author": "Manuel Diewald ", "date": "Mon, 25 May 2026 14:41:54 +0200" }, { "cves": [], "log": [ "", " * Main version: 6.8.0-121.121", "" ], "package": "linux-meta", "version": "6.8.0-121.121", "urgency": "medium", "distributions": "noble", "launchpad_bugs_fixed": [], "author": "Manuel Diewald ", "date": "Fri, 22 May 2026 23:04:02 +0200" }, { "cves": [], "log": [ "", " * Main version: 6.8.0-120.120", "" ], "package": "linux-meta", "version": "6.8.0-120.120", "urgency": "medium", "distributions": "noble", "launchpad_bugs_fixed": [], "author": "Manuel Diewald ", "date": "Fri, 22 May 2026 16:33:49 +0200" }, { "cves": [], "log": [ "", " * Main version: 6.8.0-119.119", "" ], "package": "linux-meta", "version": "6.8.0-119.119", "urgency": "medium", "distributions": "noble", "launchpad_bugs_fixed": [], "author": "Edoardo Canepa ", "date": "Mon, 11 May 2026 15:45:09 +0200" }, { "cves": [], "log": [ "", " * Main version: 6.8.0-118.118", "" ], "package": "linux-meta", "version": "6.8.0-118.118", "urgency": "medium", "distributions": "noble", "launchpad_bugs_fixed": [], "author": "Edoardo Canepa ", "date": "Sat, 09 May 2026 00:26:04 +0200" } ], "notes": null, "is_version_downgrade": false }, { "name": "snapd", "from_version": { "source_package_name": "snapd", "source_package_version": "2.74.1+ubuntu24.04.4", "version": "2.74.1+ubuntu24.04.4" }, "to_version": { "source_package_name": "snapd", "source_package_version": "2.75.2+ubuntu24.04", "version": "2.75.2+ubuntu24.04" }, "cves": [ { "cve": "CVE-2026-3888", "url": "https://ubuntu.com/security/CVE-2026-3888", "cve_description": "Local privilege escalation in snapd on Linux allows local attackers to get root privilege by re-creating snap's private /tmp directory when systemd-tmpfiles is configured to automatically clean up this directory. This issue affects Ubuntu 16.04 LTS, 18.04 LTS, 20.04 LTS, 22.04 LTS, and 24.04 LTS.", "cve_priority": "high", "cve_public_date": "2026-03-17 14:16:00 UTC" } ], "launchpad_bugs_fixed": [ 2143882, 2142130, 2137543, 2142655, 2139664, 2139065, 2002697, 2141461, 2138268, 2138629, 2141328, 2139611, 2139300, 2139099, 2141607, 2138629, 2116949, 2068493, 2134364, 2132084, 2127189, 1851490, 2121853, 2127214, 2127244, 2127766 ], "changes": [ { "cves": [], "log": [ "", " * New upstream release, LP: #2143882", " - Interfaces: network-setup-*| allow running python binaries from", " the base on UC26+", " - Cross-distro: modify SELinux policy to allow mounting on", " /var/snap//", " - Fix potential task deadlock by considering all tasks in a lane", " that might be waiting for a reboot when processing delayed", " security backend effects", "" ], "package": "snapd", "version": "2.75.2+ubuntu24.04", "urgency": "medium", "distributions": "noble", "launchpad_bugs_fixed": [ 2143882 ], "author": "Katie May ", "date": "Mon, 30 Mar 2026 17:06:36 +0200" }, { "cves": [ { "cve": "CVE-2026-3888", "url": "https://ubuntu.com/security/CVE-2026-3888", "cve_description": "Local privilege escalation in snapd on Linux allows local attackers to get root privilege by re-creating snap's private /tmp directory when systemd-tmpfiles is configured to automatically clean up this directory. This issue affects Ubuntu 16.04 LTS, 18.04 LTS, 20.04 LTS, 22.04 LTS, and 24.04 LTS.", "cve_priority": "high", "cve_public_date": "2026-03-17 14:16:00 UTC" } ], "log": [ "", " - FDE: limit number of boot check log entries", " - Allow a logged in user to refresh private snaps during a refresh", " with multiple snaps", " - Use precise prune pattern for tmpfiles (CVE-2026-3888)", "" ], "package": "snapd", "version": "2.75.1+ubuntu24.04", "urgency": "medium", "distributions": "noble", "launchpad_bugs_fixed": [], "author": "Katie May ", "date": "Wed, 18 Mar 2026 09:59:01 +0100" }, { "cves": [], "log": [ "", " - FDE: run early boot check only once per boot", " - FDE: update secboot to revision 77bc2457cc76", " - FDE: add degraded state for status API", " - FDE: prevent resealing tasks from running together", " - FDE: enable using keyslot tokens to store protected keys for UC26+", " - FDE: early commit kcmdline config transaction in update-gadget-", " cmdline to mitigate possible race condition", " - FDE: ensure extra snapd kcmdline fragments are applied", " - FDE: remove old secboot activation API calls", " - LP: #2142130 update apparmor parser to 4.1.7", " - LP: #2137543 disable translations in formatted output for snapctl", " services", " - LP: #2142655 improve snap size reporting precision in snap info", " output", " - LP: #2139664 snap-confine: remove race condition triggered by hat", " profile", " - LP: #2139065 skip 70-snap.*.rules when building dracut initramfs", " - LP: #2002697 error early on removal without purge if home is in", " NFS mount", " - LP: #2141461 Intefaces: allow snap-update-ns to read", " /proc/pid/auxv", " - LP: #2138268 Interfaces: kerberos-tickets| new interface allow", " access to kerberos tickets stored in /tmp", " - Interfaces: block-devices| allow Xen block devices", " - Interfaces: u2f-devices| add Tokey 3 FIDO", " - Interfaces: devlxd| new interface allowing acccess to LXD devlxd", " socket and APIs", " - Interfaces: browser-support| allow reading pressure stall info", " information", " - Interfaces: network-setup-control| allow additional netplan files", " access", " - Interfaces: desktop| allow access kvantum, lxqt, and gtk4", " configuration files", " - Interfaces: system-observe| allow fdinfo access for GPU monitoring", " - Interfaces: ubuntu-pro-control| allow access to Ubuntu Advantage", " client configuration", " - Prompting: add API endpoint to ask whether application should have", " access", " - Prompting: add support for audio-record prompting via API endpoint", " - Prompting: store snap name instead of apparmor label in requests", " - Prompting: respond with 503 to API requests when prompting", " subsystem is shutting down", " - Prompting: generalize prompting subsystem to support requests from", " outside AppArmor", " - Confdb: unset data for missing paths in set request", " - Confdb: return 400 for API requests with missing filter", " constraints", " - Confdb: return 400 for API requests with unmatched filter", " constraints", " - Confdb: support typed constraints in confdb filtering", " - Confdb: fixed unmarshalling transaction with placeholder path in", " deltas", " - Confdb: refresh confdb-schema assertions during manual refresh", " - Remote device management (experimental): add skeleton device", " management manager", " - Remote device management (experimental): add message exchange loop", " - Components: add snap component command, include component summary", " in snap info output", " - Components: enforce validation sets when installing components", " - Configuration: add system.motd configuration option to customize", " message of the day (motd)", " - packaging: remove dependencies libbrotli1, libfreetype6, and", " libpng16-16 from snap", " - snap-bootstrap: use libblkid for disk information to speed up boot", " - snap-confine: improve data handling error", " - snap-confine: use ld cache from the app base for core26+", " - snap: add riscv ISA detection for snaps", " - squashfs: reduce memory footprint of single file extraction", " - Add experimental snap delta format", " - Enable early download of seed snaps during refresh", " - Enable parallel downloads of essential snaps during refresh", " - Disallow removing components required by validation sets", " - Make snap prepare-image fail on --validation=ignore if model has", " enforced validation-sets", " - Fix correctly handling interrupted snap downloads", " - Fix handling of store throttling for refresh-app-awareness", " monitored snaps", " - Stop removed \"endure\" services on refresh", " - Install by default from the initramfs for UC26+, removing the need", " for a reboot after installation", " - Keep minidebuginfo in snapd snap", " - Make snap-specific systemd cgroup mandatory for snaps using core26", " and later, improve messaging for failure scenarios", " - Preserve stale connections of broken snaps", " - Remove enforce-validation-sets need for network", " - Opportunistic discarding of mount namespace when updating slot", " providers", " - Support for delaying updates of snap mount namespaces when", " refreshing slot providers", " - Use application CommonID as default source for desktop ID", "" ], "package": "snapd", "version": "2.75+ubuntu24.04", "urgency": "medium", "distributions": "noble", "launchpad_bugs_fixed": [ 2142130, 2137543, 2142655, 2139664, 2139065, 2002697, 2141461, 2138268 ], "author": "Katie May ", "date": "Mon, 09 Mar 2026 17:10:13 +0100" }, { "cves": [], "log": [ "", " * New upstream release, LP: #2138629", " - FDE: measure DeployedMode and AuditMode variables if they appear", " as disabled in the event log to avoid a potential reseal-failure", " boot loop", " - LP: #2141328 FDE: reuse preinstall check context during install to", " account for user-ignored errors", " - LP: #2139611 FDE: fix db updates by allowing multiple payloads", " - LP: #2139300 snap-confine: add CAP_SYS_RESOURCE to allow raising", " memory lock limit when required", " - LP: #2139099 snap-confine: bump the max element count of the BPF", " map used to store IDs of allowed/matched devices to 1000", " - LP: #2141607 Desktop: revert change that caused user daemons", " declaring the desktop plug to implicitly depend on graphical-", " session.target", " - Interfaces: Added pidfd_open and memfd_secret to seccomp template", " - Interfaces: camera | add locking permission for /dev/video", "" ], "package": "snapd", "version": "2.74.1", "urgency": "medium", "distributions": "xenial", "launchpad_bugs_fixed": [ 2138629, 2141328, 2139611, 2139300, 2139099, 2141607 ], "author": "Ernest Lotter ", "date": "Thu, 12 Feb 2026 21:27:23 +0200" }, { "cves": [], "log": [ "", " * New upstream release, LP: #2138629", " - FDE: use new activation API from secboot", " - FDE: use activation API also with non keydata keys", " - FDE: ignore internal recovery key expiration during install", " - FDE: support adding/removing PINs post-installation", " - FDE: support changing PINs post-installation", " - FDE: support adding a recovery key post-installation", " - FDE: provide activation status via new endpoint v2/system-", " info/storage-encrypted", " - FDE: support sealing and resealing using the preinstall check", " result", " - FDE: disable passphrase support during install", " - FDE: add keyboard configuration helpers", " - FDE: lazily inject keyboard layout configuration in kernel cmdline", " - FDE: enable pin tries and limits PIN entry attempts to 3", " - FDE: extend secureboot endpoint to accept DB, KEK, and PK", " - FDE: simplify /v2/system-volumes keyslots handling by allowing", " name-only entries, implicitly expanding to all system containers", " - FDE: support extra non-system key slot names to support agents", " such as Landscape to set dedicated recovery keys", " - FDE: initialize fde state after device state", " - FDE: use device node to find the storage container and keys", " - FDE: provide user visible name for disk based on ID_MODEL", " - FDE: update secboot in snapd with latest additions and fixes", " - core-initrd: add systemd service for setting plymouth keyboard", " layout and X11 keyboard layouts", " - core-initrd: set plymouth cleartext toggle option", " - core-initrd: fix plymouth missing font issue", " - core-initrd: update dependency from libteec1 to libteec2", " - core-initrd: add new dlopened libs", " - LP: #2116949 Preseeding: add support for preseeding of hybrid", " systems via the installer API$", " - Preseeding: check whether a path is a mountpoint before remounting", " - Confdb: support tagging paths as secret in storage schemas", " - Confdb: support filtering on placeholder sub-keys", " - Confdb: support filtering in API and confdbstate", " - Confdb: support field filtering on reads", " - Confdb: support \"parameters\" stanza and check filters against them", " - Confdb: add support for '--with' contraints", " - Confdb: parsing fixes and error handling improvements", " - Assertions: restrict serials to new format in confdb-control", " - Assertions: add verify signature function", " - Remote device management: modify request-message assertion to", " expose its time constraints for remote device management", " - Remote device management: support polling of store messages", " - Remote device management: add signing of response messages with", " device key", " - Prompting: enable notify protocol v5 and test prompt restoration", " after snapd restart", " - snap: change malformed '--channel=' warning to error", " - snap: add 'snap report-issue' command to get the available contact", " details for the specified snap", " - snap: add 'snap version --verbose' flag to include information on", " snap binaries origin", " - snap: create the XDG_RUNTIME_DIR folder", " - LP: #2068493 snap: add support for 'snap refresh --tracking'", " - snapctl: add '--tracking' flag to 'snapctl refresh'", " - Reexec: include the info filepath in the version compare debug log", " - Reexec: add support for forcing reexec into and older snapd snap", " by setting SNAP_REEXEC=force in the environment", " - snap-confine: correct error message related to snap-confine group", " policy validation", " - snap-confine: ensure we only mount existing directories", " - LP: #2134364 snap-confine: handle potential race when creating", " /tmp/snap-private-tmp when lacking systemd-tmpfiles support", " - snap-confine: filter plus characters from security tags", " - Desktop: use desktop file IDs as desktop IDs", " - Desktop: store the common ID in the desktop file", " - Desktop: allow graphical daemons to show icons in the dock", " - Desktop: change user daemons with desktop plug defined to depend", " on graphical-session.target", " - dm-verity for essential snaps: made change to prerequisite struct", " - Cross-distro: modify SELinux profile to allow connecting to squid", " proxy", " - Cross-distro: add support for migrating snap mount directory", " - Packaging: drop ubuntu-14.04 packaging", " - Packaging: drop ubuntu-{14.04,16.04} transitional binary packages", " - Packaging: remove desktop files and state lock file during snapd", " purge", " - Packaging: fix inhibition hint file being left behind on failed", " unlink-current-snap", " - Disallow timeouts < 1us in systemd units", " - Add snap-store to the user-daemons support overrides", " - Support for SuccessExitStatus= generation for systemd daemon", " - Make standby output more verbose", " - Add prepare-serial-request hook", " - Try to discard snap mount namespaces when no processes are running", " during snap updates", " - Improve handling of snap downloads cache by introducing periodic", " cleanup with more aggressive policy", " - Interfaces: mediatek-accel | create new interface", " - Interfaces: nvidia-video-driver-libs | create new interface", " - Interfaces: *-driver-libs | accept component paths", " - Interfaces: desktop-legacy, unity7 | remove workaround for slash", " filtering in ibus address", " - Interfaces: fwupd | allow writing reboot notification in /run", " - Interfaces: add 'install' coreutil to base AppArmor template", " - Interfaces: u2f-devices | add apparmor permissions to allow the", " use of the libfido2 library in snaps", " - Interfaces: u2f-devices | add support for Thetis security key", " - Interfaces: add AppArmor workaround for mmap MAP_HUGETLB", " - Interfaces: timeserver-control | manage per-link ntp settings via", " systemd-networkd", "" ], "package": "snapd", "version": "2.74", "urgency": "medium", "distributions": "xenial", "launchpad_bugs_fixed": [ 2138629, 2116949, 2068493, 2134364 ], "author": "Ernest Lotter ", "date": "Tue, 20 Jan 2026 18:54:17 +0200" }, { "cves": [], "log": [ "", " * New upstream release, LP: #2132084", " - FDE: do not save incomplete FDE state when resealing was skipped", " - FDE: warn of inconsistent primary or policy counter", " - Confdb: document confdb in snapctl help messages", " - Confdb: only confdb hooks wait if snaps are disabled", " - Confdb: relax confdb change conflict checks", " - Confdb: remove empty parent when removing last leaf", " - Confdb: support parsing field filters", " - Confdb: wrap confdb write values under \"values\" key", " - dm-verity for essential snaps: add new naming convention for", " verity files", " - dm-verity for essential snaps: add snap integrity discovery", " - dm-verity for essential snaps: fix verity salt calculation", " - Assertions: add hardware identity assertion", " - Assertions: add integrity stanza in snap resources revisions", " - Assertions: add request message assertion required for remote", " device management", " - Assertions: add response-message assertion for secure remote", " device management", " - Assertions: expose WithStackedBackstore in RODatabase", " - Packaging: cross-distro | install upstream NEWS file into relevant", " snapd package doc directory", " - Packaging: cross-distro | tweak how the blocks injecting", " $SNAP_MOUNT_DIR/bin are generated as required for openSUSE", " - Packaging: remove deprecated snap-gdb-shim and all references now", " that snap run --gdb is unsupported and replaced by --gdbserver", " - Preseed: call systemd-tmpfiles instead handle-writable-paths on", " uc26", " - Preseed: do not remove the /snap dir but rather all its contents", " during reset", " - snap-confine: attach name derived from security tag to BPF maps", " and programs", " - snap-confine: ensure permitted capabilities match expectation", " - snap-confine: fix cached snap-confine profile cleanup to report", " the correct error instead of masking backend setup failures", " - snap-confine: Improve validation of user controlled paths", " - snap-confine: tighten snap cgroup checks to ensure a snap cannot", " start another snap in the same cgroup, preventing incorrect", " device-filter installation", " - core-initrd: add 26.04 ubuntu-core-initramfs package", " - core-initrd: add missing order dependency for setting default", " system files", " - core-initrd: avoid scanning loop and mmc boot partitions as the", " boot disk won't be any of these", " - core-initrd: make cpio a Depends and remove from Build-Depends", " - core-initrd: start plymouth sooner and reload when gadget is", " available", " - Cross-distro: modify syscheck to account for differences in", " openSUSE 16.0+", " - Validation sets: use in-flight validation sets when calling", " 'snapctl install' from hook", " - Prompting: enable prompting for the camera interface", " - Prompting: remove polkit authentication when modifying/deleting", " prompting rules", " - LP: #2127189 Prompting: do not record notices for unchanged rules", " on snapd startup", " - AppArmor: add free and pidof to the template", " - AppArmor: adjust interfaces/profiles to cope with coreutils paths", " - Interfaces: add support for compatibility expressions", " - Interfaces: checkbox-support | complete overhaul", " - Interfaces: define vulkan-driver-libs, cuda-driver-libs, egl-", " driver-libs, gbm-driver-libs, opengl-driver-libs, and opengles-", " driver-libs", " - Interfaces: allow snaps on classic access to nvidia graphics", " libraries exported by *-driver-libs interfaces", " - Interfaces: fwupd | broaden access to /boot/efi/EFI", " - Interfaces: gsettings | set dconf-service as profile for", " ca.desrt.dconf.Writer", " - Interfaces: iscsi-initiator, dm-multipath, nvme-control | add new", " interfaces", " - Interfaces: opengl | grant read/write permission to /run/nvidia-", " persistenced/socket", " - interfaces: ros-snapd-support | add access to /v2/changes/", " - Interfaces: system-observe | read access to btrfs/ext4/zfs", " filesystem information", " - Interfaces: system-trace | allow /sys/kernel/tracing/** rw", " - Interfaces: usb-gadget | add support for ffs mounts in attributes", " - Add autocompletion to run command", " - Introduce option for disallowing auto-connection of a specific", " interface", " - Only log errors for user service operations performed as a part of", " snap removal", " - Patch snap names in service requests for parallel installed snaps", " - Simplify traits for eMMC special partitions", " - Strip apparmor_parser from debug symbols shrinking snapd size by", " ~3MB", " - Fix InstallPathMany skipping refresh control", " - Fix waiting for GDB helper to stop before attaching gdbserver", " - Protect the per-snap tmp directory against being reaped by age", " - Prevent disabling base snaps to ensure dependent snaps can be", " removed", " - Modify API endpoint /v2/logs to reject n <= 0 (except for special", " case -1 meaning all)", " - Avoid potential deadlock when task is injected after the change", " was aborted", " - Avoid race between store download stream and cache cleanup", " executing in parallel when invoked by snap download task", " - LP: #1851490 Use \"current\" instead of revision number for icons", " - LP: #2121853 Add snapctl version command", " - LP: #2127214 Ensure no more than one partition on disk can match a", " gadget partition", " - LP: #2127244 snap-confine: update AppArmor profile to allow", " read/write to journal as workaround for snap-confine fd", " inheritance prevented by newer AppArmor", " - LP: #2127766 Add new tracing mechanism with independently running", " strace and shim synchronization", "" ], "package": "snapd", "version": "2.73", "urgency": "medium", "distributions": "xenial", "launchpad_bugs_fixed": [ 2132084, 2127189, 1851490, 2121853, 2127214, 2127244, 2127766 ], "author": "Ernest Lotter ", "date": "Fri, 21 Nov 2025 09:08:02 +0200" } ], "notes": null, "is_version_downgrade": false }, { "name": "xxd", "from_version": { "source_package_name": "vim", "source_package_version": "2:9.1.0016-1ubuntu7.13", "version": "2:9.1.0016-1ubuntu7.13" }, "to_version": { "source_package_name": "vim", "source_package_version": "2:9.1.0016-1ubuntu7.14", "version": "2:9.1.0016-1ubuntu7.14" }, "cves": [ { "cve": "CVE-2026-42307", "url": "https://ubuntu.com/security/CVE-2026-42307", "cve_description": "Vim is an open source, command line text editor. Prior to version 9.2.0383, an OS command injection vulnerability exists in the netrw standard plugin bundled with Vim. By inducing a user to open a crafted URL (e.g., using the sftp:// or file:// protocol handlers), an attacker can execute arbitrary shell commands with the privileges of the Vim process. This issue has been patched in version 9.2.0383.", "cve_priority": "medium", "cve_public_date": "2026-05-08 23:16:00 UTC" }, { "cve": "CVE-2026-44656", "url": "https://ubuntu.com/security/CVE-2026-44656", "cve_description": "Vim is an open source, command line text editor. Prior to version 9.2.0435, an OS command injection vulnerability exists in Vim's :find command-line completion. When the path option contains backtick-enclosed shell commands, those commands are executed during file name completion. Because the path option lacks the P_SECURE flag, it can be set from a modeline, allowing an attacker who controls the contents of a file to execute arbitrary shell commands when the user opens that file in Vim and triggers :find completion. This issue has been patched in version 9.2.0435.", "cve_priority": "medium", "cve_public_date": "2026-05-08 23:16:00 UTC" }, { "cve": "CVE-2026-45130", "url": "https://ubuntu.com/security/CVE-2026-45130", "cve_description": "Vim is an open source, command line text editor. Prior to version 9.2.0450, a heap buffer overflow exists in read_compound() in src/spellfile.c when loading a crafted spell file (.spl) with UTF-8 encoding active. An attacker-controlled length field in the spell file's compound section overflows a 32-bit signed integer multiplication, causing a small buffer to be allocated for a write loop that runs many iterations, overflowing the heap. Because the 'spelllang' option can be set from a modeline, a text file modeline can trigger spell file loading if a malicious .spl file has been planted on the runtimepath. This issue has been patched in version 9.2.0450.", "cve_priority": "medium", "cve_public_date": "2026-05-08 23:16:00 UTC" } ], "launchpad_bugs_fixed": [], "changes": [ { "cves": [ { "cve": "CVE-2026-42307", "url": "https://ubuntu.com/security/CVE-2026-42307", "cve_description": "Vim is an open source, command line text editor. Prior to version 9.2.0383, an OS command injection vulnerability exists in the netrw standard plugin bundled with Vim. By inducing a user to open a crafted URL (e.g., using the sftp:// or file:// protocol handlers), an attacker can execute arbitrary shell commands with the privileges of the Vim process. This issue has been patched in version 9.2.0383.", "cve_priority": "medium", "cve_public_date": "2026-05-08 23:16:00 UTC" }, { "cve": "CVE-2026-44656", "url": "https://ubuntu.com/security/CVE-2026-44656", "cve_description": "Vim is an open source, command line text editor. Prior to version 9.2.0435, an OS command injection vulnerability exists in Vim's :find command-line completion. When the path option contains backtick-enclosed shell commands, those commands are executed during file name completion. Because the path option lacks the P_SECURE flag, it can be set from a modeline, allowing an attacker who controls the contents of a file to execute arbitrary shell commands when the user opens that file in Vim and triggers :find completion. This issue has been patched in version 9.2.0435.", "cve_priority": "medium", "cve_public_date": "2026-05-08 23:16:00 UTC" }, { "cve": "CVE-2026-45130", "url": "https://ubuntu.com/security/CVE-2026-45130", "cve_description": "Vim is an open source, command line text editor. Prior to version 9.2.0450, a heap buffer overflow exists in read_compound() in src/spellfile.c when loading a crafted spell file (.spl) with UTF-8 encoding active. An attacker-controlled length field in the spell file's compound section overflows a 32-bit signed integer multiplication, causing a small buffer to be allocated for a write loop that runs many iterations, overflowing the heap. Because the 'spelllang' option can be set from a modeline, a text file modeline can trigger spell file loading if a malicious .spl file has been planted on the runtimepath. This issue has been patched in version 9.2.0450.", "cve_priority": "medium", "cve_public_date": "2026-05-08 23:16:00 UTC" } ], "log": [ "", " * SECURITY UPDATE: Command injection in netrw plugin.", " - debian/patches/CVE-2026-42307.patch: Escape file names and harden regex", " patterns in runtime/autoload/netrw.vim", " - CVE-2026-42307", " * SECURITY UPDATE: Shell execution in completion.", " - debian/patches/CVE-2026-44656.patch: Skip path entries containing", " backticks and add P_SECURE option in src/findfile.c and src/optiondefs.h", " - CVE-2026-44656", " * SECURITY UPDATE: Heap overflow in spellfile.", " - debian/patches/CVE-2026-45130.patch: Enforce a maximum compound length", " in src/spellfile.c", " - CVE-2026-45130", "" ], "package": "vim", "version": "2:9.1.0016-1ubuntu7.14", "urgency": "medium", "distributions": "noble-security", "launchpad_bugs_fixed": [], "author": "Kyle Kernick ", "date": "Thu, 21 May 2026 13:51:48 -0600" } ], "notes": null, "is_version_downgrade": false }, { "name": "xz-utils", "from_version": { "source_package_name": "xz-utils", "source_package_version": "5.6.1+really5.4.5-1ubuntu0.2", "version": "5.6.1+really5.4.5-1ubuntu0.2" }, "to_version": { "source_package_name": "xz-utils", "source_package_version": "5.6.1+really5.4.5-1ubuntu0.3", "version": "5.6.1+really5.4.5-1ubuntu0.3" }, "cves": [ { "cve": "CVE-2026-34743", "url": "https://ubuntu.com/security/CVE-2026-34743", "cve_description": "XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzma_index_decoder() was used to decode an Index that contained no Records, the resulting lzma_index was left in a state where where a subsequent lzma_index_append() would allocate too little memory, and a buffer overflow would occur. This issue has been patched in version 5.8.3.", "cve_priority": "low", "cve_public_date": "2026-04-02 19:21:00 UTC" } ], "launchpad_bugs_fixed": [], "changes": [ { "cves": [ { "cve": "CVE-2026-34743", "url": "https://ubuntu.com/security/CVE-2026-34743", "cve_description": "XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzma_index_decoder() was used to decode an Index that contained no Records, the resulting lzma_index was left in a state where where a subsequent lzma_index_append() would allocate too little memory, and a buffer overflow would occur. This issue has been patched in version 5.8.3.", "cve_priority": "low", "cve_public_date": "2026-04-02 19:21:00 UTC" } ], "log": [ "", " * SECURITY UPDATE: heap buffer overflow", " - debian/patches/CVE-2026-34743.patch: adds a check to", " lzma_index_prealloc() to default to a safe size when decoding empty", " indexes in src/liblzma/common/index.c.", " - CVE-2026-34743", "" ], "package": "xz-utils", "version": "5.6.1+really5.4.5-1ubuntu0.3", "urgency": "medium", "distributions": "noble-security", "launchpad_bugs_fixed": [], "author": "Ian Constantin ", "date": "Thu, 28 May 2026 19:06:47 +0300" } ], "notes": null, "is_version_downgrade": false } ], "snap": [] }, "added": { "deb": [ { "name": "linux-image-6.8.0-124-generic", "from_version": { "source_package_name": "linux-signed", "source_package_version": "6.8.0-117.117", "version": null }, "to_version": { "source_package_name": "linux-signed", "source_package_version": "6.8.0-124.124", "version": "6.8.0-124.124" }, "cves": [], "launchpad_bugs_fixed": [ 1786013, 1786013, 1786013 ], "changes": [ { "cves": [], "log": [ "", " * Main version: 6.8.0-124.124", "" ], "package": "linux-signed", "version": "6.8.0-124.124", "urgency": "medium", "distributions": "noble", "launchpad_bugs_fixed": [], "author": "Manuel Diewald ", "date": "Tue, 26 May 2026 12:11:27 +0200" }, { "cves": [], "log": [ "", " * Main version: 6.8.0-123.123", "" ], "package": "linux-signed", "version": "6.8.0-123.123", "urgency": "medium", "distributions": "noble", "launchpad_bugs_fixed": [], "author": "Manuel Diewald ", "date": "Mon, 25 May 2026 14:42:03 +0200" }, { "cves": [], "log": [ "", " * Main version: 6.8.0-121.121", "" ], "package": "linux-signed", "version": "6.8.0-121.121", "urgency": "medium", "distributions": "noble", "launchpad_bugs_fixed": [], "author": "Manuel Diewald ", "date": "Fri, 22 May 2026 23:04:11 +0200" }, { "cves": [], "log": [ "", " * Main version: 6.8.0-120.120", "", " * Packaging resync (LP: #1786013)", " - [Packaging] debian/tracking-bug -- resync from main package", "" ], "package": "linux-signed", "version": "6.8.0-120.120", "urgency": "medium", "distributions": "noble", "launchpad_bugs_fixed": [ 1786013 ], "author": "Manuel Diewald ", "date": "Fri, 22 May 2026 16:33:59 +0200" }, { "cves": [], "log": [ "", " * Main version: 6.8.0-119.119", "", " * Packaging resync (LP: #1786013)", " - [Packaging] debian/tracking-bug -- resync from main package", "" ], "package": "linux-signed", "version": "6.8.0-119.119", "urgency": "medium", "distributions": "noble", "launchpad_bugs_fixed": [ 1786013 ], "author": "Edoardo Canepa ", "date": "Mon, 11 May 2026 15:45:29 +0200" }, { "cves": [], "log": [ "", " * Main version: 6.8.0-118.118", "", " * Packaging resync (LP: #1786013)", " - [Packaging] debian/tracking-bug -- resync from main package", "" ], "package": "linux-signed", "version": "6.8.0-118.118", "urgency": "medium", "distributions": "noble", "launchpad_bugs_fixed": [ 1786013 ], "author": "Edoardo Canepa ", "date": "Sat, 09 May 2026 00:26:13 +0200" } ], "notes": "linux-image-6.8.0-124-generic version '6.8.0-124.124' (source package linux-signed version '6.8.0-124.124') was added. linux-image-6.8.0-124-generic version '6.8.0-124.124' has the same source package name, linux-signed, as removed package linux-image-6.8.0-117-generic. As such we can use the source package version of the removed package, '6.8.0-117.117', as the starting point in our changelog diff. Kernel packages are an example of where the binary package name changes for the same source package. Using the removed package source package version as our starting point means we can still get meaningful changelog diffs even for what appears to be a new package.", "is_version_downgrade": false }, { "name": "linux-modules-6.8.0-124-generic", "from_version": { "source_package_name": "linux", "source_package_version": "6.8.0-117.117", "version": null }, "to_version": { "source_package_name": "linux", "source_package_version": "6.8.0-124.124", "version": "6.8.0-124.124" }, "cves": [ { "cve": "CVE-2026-47337", "url": "https://ubuntu.com/security/CVE-2026-47337", "cve_description": "Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling of AF_INET/AF_INET6 socket mediation. The bug can be triggered by an unprivileged local user. This can lead to a kernel oops.", "cve_priority": "medium", "cve_public_date": "2026-05-28 0:00:00 UTC" }, { "cve": "CVE-2026-47336", "url": "https://ubuntu.com/security/CVE-2026-47336", "cve_description": "Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/AF_INET6 socket mediation code. The bug can be triggered by an unprivileged local user and could result in incorrect fine-grained mediation of network sockets.", "cve_priority": "low", "cve_public_date": "2026-05-28 0:00:00 UTC" }, { "cve": "CVE-2026-47335", "url": "https://ubuntu.com/security/CVE-2026-47335", "cve_description": "Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor notifications. The bug can be triggered by an unprivileged local user. This can lead to a kernel panic.", "cve_priority": "medium", "cve_public_date": "2026-05-28 0:00:00 UTC" }, { "cve": "CVE-2026-47334", "url": "https://ubuntu.com/security/CVE-2026-47334", "cve_description": "Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock in notification handling code. The bug can be triggered by an unprivileged local user and can result in kernel panic or deadlock.", "cve_priority": "medium", "cve_public_date": "2026-05-28 0:00:00 UTC" }, { "cve": "CVE-2026-47333", "url": "https://ubuntu.com/security/CVE-2026-47333", "cve_description": "Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the size of an internal buffer, leading to a heap memory out-of-bounds read in notification handling code. The bug can be triggered by an unprivileged local user and can result in invalid data being processed by the AppArmor DFA policy engine.", "cve_priority": "high", "cve_public_date": "2026-05-28 0:00:00 UTC" }, { "cve": "CVE-2026-47332", "url": "https://ubuntu.com/security/CVE-2026-47332", "cve_description": "Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an internal structure, leading to an out-of-bounds read in notification handling code. The bug can be triggered by an unprivileged local user and can result in information disclosure from adjacent slab objects.", "cve_priority": "medium", "cve_public_date": "2026-05-28 0:00:00 UTC" }, { "cve": "CVE-2026-47331", "url": "https://ubuntu.com/security/CVE-2026-47331", "cve_description": "Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An unprivileged local user could trigger the race condition that can lead to a use-after-free (UAF) and, theoretically, arbitrary code execution.", "cve_priority": "high", "cve_public_date": "2026-05-28 0:00:00 UTC" }, { "cve": "CVE-2026-47330", "url": "https://ubuntu.com/security/CVE-2026-47330", "cve_description": "Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an uninitialized variable in notification handling code. The bug can be triggered by an unprivileged local user and can result in the incorrect caching of AppArmor notification responses.", "cve_priority": "low", "cve_public_date": "2026-05-28 0:00:00 UTC" }, { "cve": "CVE-2026-47329", "url": "https://ubuntu.com/security/CVE-2026-47329", "cve_description": "Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches which fail to validate invalid sizes of the name field in AppAmor notification responses. The bug can be triggered by an unprivileged local user and could result in handling of crafted responses.", "cve_priority": "low", "cve_public_date": "2026-05-28 0:00:00 UTC" }, { "cve": "CVE-2026-47327", "url": "https://ubuntu.com/security/CVE-2026-47327", "cve_description": "Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor notifications. The bug can be triggered by an unprivileged local user. This can lead to a kernel oops.", "cve_priority": "medium", "cve_public_date": "2026-05-28 0:00:00 UTC" }, { "cve": "CVE-2026-47328", "url": "https://ubuntu.com/security/CVE-2026-47328", "cve_description": "Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly attempt to free a pointer which was not previously kmalloc()d, while at the same time leaking allocated memory. The bug can be triggered by an unprivileged local user and can result in the corruption of slab metadata and could lead to resource exhaustion.", "cve_priority": "medium", "cve_public_date": "2026-05-28 0:00:00 UTC" }, { "cve": "CVE-2026-47326", "url": "https://ubuntu.com/security/CVE-2026-47326", "cve_description": "Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a memory leak in the handling of big responses to AppArmor notifications. The bug can be triggered by an unprivileged local user. The memory leak could lead to resource exhaustion.", "cve_priority": "medium", "cve_public_date": "2026-05-28 0:00:00 UTC" }, { "cve": "CVE-2026-46300", "url": "https://ubuntu.com/security/CVE-2026-46300", "cve_description": "In the Linux kernel, the following vulnerability has been resolved: net: skbuff: preserve shared-frag marker during coalescing skb_try_coalesce() can attach paged frags from @from to @to. If @from has SKBFL_SHARED_FRAG set, the resulting @to skb can contain the same externally-owned or page-cache-backed frags, but the shared-frag marker is currently lost. That breaks the invariant relied on by later in-place writers. In particular, ESP input checks skb_has_shared_frag() before deciding whether an uncloned nonlinear skb can skip skb_cow_data(). If TCP receive coalescing has moved shared frags into an unmarked skb, ESP can see skb_has_shared_frag() as false and decrypt in place over page-cache backed frags. Propagate SKBFL_SHARED_FRAG when skb_try_coalesce() transfers paged frags. The tailroom copy path does not need the marker because it copies bytes into @to's linear data rather than transferring frag descriptors.", "cve_priority": "high", "cve_public_date": "2026-05-23 12:17:00 UTC" }, { "cve": "CVE-2026-46333", "url": "https://ubuntu.com/security/CVE-2026-46333", "cve_description": "In the Linux kernel, the following vulnerability has been resolved: ptrace: slightly saner 'get_dumpable()' logic The 'dumpability' of a task is fundamentally about the memory image of the task - the concept comes from whether it can core dump or not - and makes no sense when you don't have an associated mm. And almost all users do in fact use it only for the case where the task has a mm pointer. But we have one odd special case: ptrace_may_access() uses 'dumpable' to check various other things entirely independently of the MM (typically explicitly using flags like PTRACE_MODE_READ_FSCREDS). Including for threads that no longer have a VM (and maybe never did, like most kernel threads). It's not what this flag was designed for, but it is what it is. The ptrace code does check that the uid/gid matches, so you do have to be uid-0 to see kernel thread details, but this means that the traditional \"drop capabilities\" model doesn't make any difference for this all. Make it all make a *bit* more sense by saying that if you don't have a MM pointer, we'll use a cached \"last dumpability\" flag if the thread ever had a MM (it will be zero for kernel threads since it is never set), and require a proper CAP_SYS_PTRACE capability to override.", "cve_priority": "high", "cve_public_date": "2026-05-15 14:16:00 UTC" }, { "cve": "CVE-2026-43500", "url": "https://ubuntu.com/security/CVE-2026-43500", "cve_description": "In the Linux kernel, the following vulnerability has been resolved: rxrpc: Also unshare DATA/RESPONSE packets when paged frags are present The DATA-packet handler in rxrpc_input_call_event() and the RESPONSE handler in rxrpc_verify_response() copy the skb to a linear one before calling into the security ops only when skb_cloned() is true. An skb that is not cloned but still carries externally-owned paged fragments (e.g. SKBFL_SHARED_FRAG set by splice() into a UDP socket via __ip_append_data, or a chained skb_has_frag_list()) falls through to the in-place decryption path, which binds the frag pages directly into the AEAD/skcipher SGL via skb_to_sgvec(). Extend the gate to also unshare when skb_has_frag_list() or skb_has_shared_frag() is true. This catches the splice-loopback vector and other externally-shared frag sources while preserving the zero-copy fast path for skbs whose frags are kernel-private (e.g. NIC page_pool RX, GRO). The OOM/trace handling already in place is reused.", "cve_priority": "high", "cve_public_date": "2026-05-11 08:16:00 UTC" }, { "cve": "CVE-2026-31676", "url": "https://ubuntu.com/security/CVE-2026-31676", "cve_description": "In the Linux kernel, the following vulnerability has been resolved: rxrpc: only handle RESPONSE during service challenge Only process RESPONSE packets while the service connection is still in RXRPC_CONN_SERVICE_CHALLENGING. Check that state under state_lock before running response verification and security initialization, then use a local secured flag to decide whether to queue the secured-connection work after the state transition. This keeps duplicate or late RESPONSE packets from re-running the setup path and removes the unlocked post-transition state test.", "cve_priority": "medium", "cve_public_date": "2026-04-25 09:16:00 UTC" }, { "cve": "CVE-2026-43284", "url": "https://ubuntu.com/security/CVE-2026-43284", "cve_description": "In the Linux kernel, the following vulnerability has been resolved: xfrm: esp: avoid in-place decrypt on shared skb frags MSG_SPLICE_PAGES can attach pages from a pipe directly to an skb. TCP marks such skbs with SKBFL_SHARED_FRAG after skb_splice_from_iter(), so later paths that may modify packet data can first make a private copy. The IPv4/IPv6 datagram append paths did not set this flag when splicing pages into UDP skbs. That leaves an ESP-in-UDP packet made from shared pipe pages looking like an ordinary uncloned nonlinear skb. ESP input then takes the no-COW fast path for uncloned skbs without a frag_list and decrypts in place over data that is not owned privately by the skb. Mark IPv4/IPv6 datagram splice frags with SKBFL_SHARED_FRAG, matching TCP. Also make ESP input fall back to skb_cow_data() when the flag is present, so ESP does not decrypt externally backed frags in place. Private nonlinear skb frags still use the existing fast path. This intentionally does not change ESP output. In esp_output_head(), the path that appends the ESP trailer to existing skb tailroom without calling skb_cow_data() is not reachable for nonlinear skbs: skb_tailroom() returns zero when skb->data_len is nonzero, while ESP tailen is positive. Thus ESP output will either use the separate destination-frag path or fall back to skb_cow_data().", "cve_priority": "high", "cve_public_date": "2026-05-08 08:16:00 UTC" } ], "launchpad_bugs_fixed": [ 2154172, 2151747, 2151747, 2151747, 2151747, 2151747, 2151747, 2151747, 2151747, 2148809, 2151747, 2151747, 2151747, 2153733, 1786013, 2153962 ], "changes": [ { "cves": [], "log": [ "", " * GRO managed-frag use-after-free leading to local privilege escalation", " (LP: #2154172)", " - net: gro: don't merge zcopy skbs", "" ], "package": "linux", "version": "6.8.0-124.124", "urgency": "medium", "distributions": "noble", "launchpad_bugs_fixed": [ 2154172 ], "author": "Manuel Diewald ", "date": "Tue, 26 May 2026 11:55:59 +0200" }, { "cves": [ { "cve": "CVE-2026-47337", "url": "https://ubuntu.com/security/CVE-2026-47337", "cve_description": "Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling of AF_INET/AF_INET6 socket mediation. The bug can be triggered by an unprivileged local user. This can lead to a kernel oops.", "cve_priority": "medium", "cve_public_date": "2026-05-28 0:00:00 UTC" }, { "cve": "CVE-2026-47336", "url": "https://ubuntu.com/security/CVE-2026-47336", "cve_description": "Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/AF_INET6 socket mediation code. The bug can be triggered by an unprivileged local user and could result in incorrect fine-grained mediation of network sockets.", "cve_priority": "low", "cve_public_date": "2026-05-28 0:00:00 UTC" }, { "cve": "CVE-2026-47335", "url": "https://ubuntu.com/security/CVE-2026-47335", "cve_description": "Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor notifications. The bug can be triggered by an unprivileged local user. This can lead to a kernel panic.", "cve_priority": "medium", "cve_public_date": "2026-05-28 0:00:00 UTC" }, { "cve": "CVE-2026-47334", "url": "https://ubuntu.com/security/CVE-2026-47334", "cve_description": "Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock in notification handling code. The bug can be triggered by an unprivileged local user and can result in kernel panic or deadlock.", "cve_priority": "medium", "cve_public_date": "2026-05-28 0:00:00 UTC" }, { "cve": "CVE-2026-47333", "url": "https://ubuntu.com/security/CVE-2026-47333", "cve_description": "Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the size of an internal buffer, leading to a heap memory out-of-bounds read in notification handling code. The bug can be triggered by an unprivileged local user and can result in invalid data being processed by the AppArmor DFA policy engine.", "cve_priority": "high", "cve_public_date": "2026-05-28 0:00:00 UTC" }, { "cve": "CVE-2026-47332", "url": "https://ubuntu.com/security/CVE-2026-47332", "cve_description": "Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an internal structure, leading to an out-of-bounds read in notification handling code. The bug can be triggered by an unprivileged local user and can result in information disclosure from adjacent slab objects.", "cve_priority": "medium", "cve_public_date": "2026-05-28 0:00:00 UTC" }, { "cve": "CVE-2026-47331", "url": "https://ubuntu.com/security/CVE-2026-47331", "cve_description": "Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An unprivileged local user could trigger the race condition that can lead to a use-after-free (UAF) and, theoretically, arbitrary code execution.", "cve_priority": "high", "cve_public_date": "2026-05-28 0:00:00 UTC" }, { "cve": "CVE-2026-47330", "url": "https://ubuntu.com/security/CVE-2026-47330", "cve_description": "Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an uninitialized variable in notification handling code. The bug can be triggered by an unprivileged local user and can result in the incorrect caching of AppArmor notification responses.", "cve_priority": "low", "cve_public_date": "2026-05-28 0:00:00 UTC" }, { "cve": "CVE-2026-47329", "url": "https://ubuntu.com/security/CVE-2026-47329", "cve_description": "Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches which fail to validate invalid sizes of the name field in AppAmor notification responses. The bug can be triggered by an unprivileged local user and could result in handling of crafted responses.", "cve_priority": "low", "cve_public_date": "2026-05-28 0:00:00 UTC" }, { "cve": "CVE-2026-47327", "url": "https://ubuntu.com/security/CVE-2026-47327", "cve_description": "Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor notifications. The bug can be triggered by an unprivileged local user. This can lead to a kernel oops.", "cve_priority": "medium", "cve_public_date": "2026-05-28 0:00:00 UTC" }, { "cve": "CVE-2026-47328", "url": "https://ubuntu.com/security/CVE-2026-47328", "cve_description": "Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly attempt to free a pointer which was not previously kmalloc()d, while at the same time leaking allocated memory. The bug can be triggered by an unprivileged local user and can result in the corruption of slab metadata and could lead to resource exhaustion.", "cve_priority": "medium", "cve_public_date": "2026-05-28 0:00:00 UTC" }, { "cve": "CVE-2026-47326", "url": "https://ubuntu.com/security/CVE-2026-47326", "cve_description": "Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a memory leak in the handling of big responses to AppArmor notifications. The bug can be triggered by an unprivileged local user. The memory leak could lead to resource exhaustion.", "cve_priority": "medium", "cve_public_date": "2026-05-28 0:00:00 UTC" } ], "log": [ "", " * apparmor (LP: #2151747)", " - apparmor: Fix incorrect profile->signal range check", " - SAUCE: apparmor: pass big_resp to handler", " - SAUCE: apparmor: remove redundant kref_init for listener->count", " - SAUCE: apparmor: fix NULL pointer dereference in unpack_pdb", "", " * apparmor (LP: #2151747) // CVE-2026-47337", " - SAUCE: apparmor: fix NULL pointer dereference in bind_map_addr", "", " * apparmor (LP: #2151747) // CVE-2026-47336", " - SAUCE: apparmor: fix use of unintialized variable in net opt level", "", " * apparmor (LP: #2151747) // CVE-2026-47335", " - SAUCE: apparmor: fix possible NULL pointer dereference by adding a NULL", " check", "", " * apparmor (LP: #2151747) // CVE-2026-47334", " - SAUCE: apparmor: fix sleep prone memory allocation under a spin_lock", "", " * apparmor (LP: #2151747) // CVE-2026-47333", " - SAUCE: apparmor: fix dfa unpacking size of the notification filter", "", " * apparmor (LP: #2151747) // CVE-2026-47332", " - SAUCE: apparmor: fix size check against type instead of pointer", "", " * apparmor (LP: #2151747) // CVE-2026-47331", " - SAUCE: apparmor: fix changing rules list without a lock", "", " * apparmor: LLVM/clang build failure due to uninitialized variable in", " notify.c (LP: #2148809) // CVE-2026-47330", " - SAUCE: apparmor: initialize variable used in uninitialized context", "", " * apparmor (LP: #2151747) // CVE-2026-47329", " - SAUCE: apparmor: fix name validation bypass on notification", "", " * apparmor (LP: #2151747) // CVE-2026-47327 // CVE-2026-47328", " - SAUCE: apparmor: fix glob memory leak after kstrdup", "", " * apparmor (LP: #2151747) // CVE-2026-47326", " - SAUCE: apparmor: fix inverted NULL check after aa_get_buffer", "" ], "package": "linux", "version": "6.8.0-121.121", "urgency": "medium", "distributions": "noble", "launchpad_bugs_fixed": [ 2151747, 2151747, 2151747, 2151747, 2151747, 2151747, 2151747, 2151747, 2148809, 2151747, 2151747, 2151747 ], "author": "Manuel Diewald ", "date": "Fri, 22 May 2026 22:55:39 +0200" }, { "cves": [ { "cve": "CVE-2026-46300", "url": "https://ubuntu.com/security/CVE-2026-46300", "cve_description": "In the Linux kernel, the following vulnerability has been resolved: net: skbuff: preserve shared-frag marker during coalescing skb_try_coalesce() can attach paged frags from @from to @to. If @from has SKBFL_SHARED_FRAG set, the resulting @to skb can contain the same externally-owned or page-cache-backed frags, but the shared-frag marker is currently lost. That breaks the invariant relied on by later in-place writers. In particular, ESP input checks skb_has_shared_frag() before deciding whether an uncloned nonlinear skb can skip skb_cow_data(). If TCP receive coalescing has moved shared frags into an unmarked skb, ESP can see skb_has_shared_frag() as false and decrypt in place over page-cache backed frags. Propagate SKBFL_SHARED_FRAG when skb_try_coalesce() transfers paged frags. The tailroom copy path does not need the marker because it copies bytes into @to's linear data rather than transferring frag descriptors.", "cve_priority": "high", "cve_public_date": "2026-05-23 12:17:00 UTC" }, { "cve": "CVE-2026-46333", "url": "https://ubuntu.com/security/CVE-2026-46333", "cve_description": "In the Linux kernel, the following vulnerability has been resolved: ptrace: slightly saner 'get_dumpable()' logic The 'dumpability' of a task is fundamentally about the memory image of the task - the concept comes from whether it can core dump or not - and makes no sense when you don't have an associated mm. And almost all users do in fact use it only for the case where the task has a mm pointer. But we have one odd special case: ptrace_may_access() uses 'dumpable' to check various other things entirely independently of the MM (typically explicitly using flags like PTRACE_MODE_READ_FSCREDS). Including for threads that no longer have a VM (and maybe never did, like most kernel threads). It's not what this flag was designed for, but it is what it is. The ptrace code does check that the uid/gid matches, so you do have to be uid-0 to see kernel thread details, but this means that the traditional \"drop capabilities\" model doesn't make any difference for this all. Make it all make a *bit* more sense by saying that if you don't have a MM pointer, we'll use a cached \"last dumpability\" flag if the thread ever had a MM (it will be zero for kernel threads since it is never set), and require a proper CAP_SYS_PTRACE capability to override.", "cve_priority": "high", "cve_public_date": "2026-05-15 14:16:00 UTC" }, { "cve": "CVE-2026-43500", "url": "https://ubuntu.com/security/CVE-2026-43500", "cve_description": "In the Linux kernel, the following vulnerability has been resolved: rxrpc: Also unshare DATA/RESPONSE packets when paged frags are present The DATA-packet handler in rxrpc_input_call_event() and the RESPONSE handler in rxrpc_verify_response() copy the skb to a linear one before calling into the security ops only when skb_cloned() is true. An skb that is not cloned but still carries externally-owned paged fragments (e.g. SKBFL_SHARED_FRAG set by splice() into a UDP socket via __ip_append_data, or a chained skb_has_frag_list()) falls through to the in-place decryption path, which binds the frag pages directly into the AEAD/skcipher SGL via skb_to_sgvec(). Extend the gate to also unshare when skb_has_frag_list() or skb_has_shared_frag() is true. This catches the splice-loopback vector and other externally-shared frag sources while preserving the zero-copy fast path for skbs whose frags are kernel-private (e.g. NIC page_pool RX, GRO). The OOM/trace handling already in place is reused.", "cve_priority": "high", "cve_public_date": "2026-05-11 08:16:00 UTC" }, { "cve": "CVE-2026-31676", "url": "https://ubuntu.com/security/CVE-2026-31676", "cve_description": "In the Linux kernel, the following vulnerability has been resolved: rxrpc: only handle RESPONSE during service challenge Only process RESPONSE packets while the service connection is still in RXRPC_CONN_SERVICE_CHALLENGING. Check that state under state_lock before running response verification and security initialization, then use a local secured flag to decide whether to queue the secured-connection work after the state transition. This keeps duplicate or late RESPONSE packets from re-running the setup path and removes the unlocked post-transition state test.", "cve_priority": "medium", "cve_public_date": "2026-04-25 09:16:00 UTC" }, { "cve": "CVE-2026-43284", "url": "https://ubuntu.com/security/CVE-2026-43284", "cve_description": "In the Linux kernel, the following vulnerability has been resolved: xfrm: esp: avoid in-place decrypt on shared skb frags MSG_SPLICE_PAGES can attach pages from a pipe directly to an skb. TCP marks such skbs with SKBFL_SHARED_FRAG after skb_splice_from_iter(), so later paths that may modify packet data can first make a private copy. The IPv4/IPv6 datagram append paths did not set this flag when splicing pages into UDP skbs. That leaves an ESP-in-UDP packet made from shared pipe pages looking like an ordinary uncloned nonlinear skb. ESP input then takes the no-COW fast path for uncloned skbs without a frag_list and decrypts in place over data that is not owned privately by the skb. Mark IPv4/IPv6 datagram splice frags with SKBFL_SHARED_FRAG, matching TCP. Also make ESP input fall back to skb_cow_data() when the flag is present, so ESP does not decrypt externally backed frags in place. Private nonlinear skb frags still use the existing fast path. This intentionally does not change ESP output. In esp_output_head(), the path that appends the ESP trailer to existing skb tailroom without calling skb_cow_data() is not reachable for nonlinear skbs: skb_tailroom() returns zero when skb->data_len is nonzero, while ESP tailen is positive. Thus ESP output will either use the separate destination-frag path or fall back to skb_cow_data().", "cve_priority": "high", "cve_public_date": "2026-05-08 08:16:00 UTC" } ], "log": [ "", " * noble/linux: 6.8.0-120.120 -proposed tracker (LP: #2153733)", "", " * Packaging resync (LP: #1786013)", " - [Packaging] update annotations scripts", "", " * CVE-2026-46300", " - net: skbuff: preserve shared-frag marker during coalescing", " - net: skbuff: propagate shared-frag marker through frag-transfer helpers", "", " * net/rds: reset op_nents when zerocopy page pin fails (LP: #2153962)", " - net/rds: reset op_nents when zerocopy page pin fails", "", " * CVE-2026-46333", " - ptrace: slightly saner 'get_dumpable()' logic", "", " * CVE-2026-43500", " - rxrpc: Fix conn-level packet handling to unshare RESPONSE packets", " - rxrpc: Parse received packets before dealing with timeouts", " - rxrpc: Fix potential UAF after skb_unshare() failure", " - rxrpc: Fix rxrpc_input_call_event() to only unshare DATA packets", " - rxrpc: Also unshare DATA/RESPONSE packets when paged frags are present", "", " * CVE-2026-31676 // CVE-2026-43500", " - rxrpc: only handle RESPONSE during service challenge", "", " * CVE-2026-43284", " - xfrm: esp: avoid in-place decrypt on shared skb frags", "" ], "package": "linux", "version": "6.8.0-120.120", "urgency": "medium", "distributions": "noble", "launchpad_bugs_fixed": [ 2153733, 1786013, 2153962 ], "author": "Manuel Diewald ", "date": "Fri, 22 May 2026 16:06:43 +0200" } ], "notes": "linux-modules-6.8.0-124-generic version '6.8.0-124.124' (source package linux version '6.8.0-124.124') was added. linux-modules-6.8.0-124-generic version '6.8.0-124.124' has the same source package name, linux, as removed package linux-modules-6.8.0-117-generic. As such we can use the source package version of the removed package, '6.8.0-117.117', as the starting point in our changelog diff. Kernel packages are an example of where the binary package name changes for the same source package. Using the removed package source package version as our starting point means we can still get meaningful changelog diffs even for what appears to be a new package.", "is_version_downgrade": false } ], "snap": [] }, "removed": { "deb": [ { "name": "linux-image-6.8.0-117-generic", "from_version": { "source_package_name": "linux-signed", "source_package_version": "6.8.0-117.117", "version": "6.8.0-117.117" }, "to_version": { "source_package_name": null, "source_package_version": null, "version": null }, "cves": [], "launchpad_bugs_fixed": [], "changes": [], "notes": null, "is_version_downgrade": false }, { "name": "linux-modules-6.8.0-117-generic", "from_version": { "source_package_name": "linux", "source_package_version": "6.8.0-117.117", "version": "6.8.0-117.117" }, "to_version": { "source_package_name": null, "source_package_version": null, "version": null }, "cves": [], "launchpad_bugs_fixed": [], "changes": [], "notes": null, "is_version_downgrade": false } ], "snap": [] }, "notes": "Changelog diff for Ubuntu 24.04 noble image from daily image serial 20260521 to 20260602", "from_series": "noble", "to_series": "noble", "from_serial": "20260521", "to_serial": "20260602", "from_manifest_filename": "daily_manifest.previous", "to_manifest_filename": "manifest.current" }