USN-8163-2: Linux kernel (Azure) vulnerabilities

Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853, CVE-2026-23268, CVE-2026-23269, CVE-2026-23403,
CVE-2026-23404, CVE-2026-23405, CVE-2026-23406, CVE-2026-23407,
CVE-2026-23408, CVE-2026-23409, CVE-2026-23410, CVE-2026-23411)

Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- Nios II architecture;
- PowerPC architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ACPI drivers;
- ATM drivers;
- Drivers core;
- Network block device driver;
- Bluetooth drivers;
- Bus devices;
- Character device driver;
- Hardware random number generator core;
- TPM device driver;
- Data acquisition framework and drivers;
- Counter interface drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- Intel Stratix 10 firmware drivers;
- GPU drivers;
- HID subsystem;
- Hardware monitoring drivers;
- CoreSight HW tracing drivers;
- IIO subsystem;
- InfiniBand drivers;
- Input Device core drivers;
- Input Device (Miscellaneous) drivers;
- Input Device (Tablet) drivers;
- ISDN/mISDN subsystem;
- Macintosh device drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Network drivers;
- Mellanox network drivers;
- Texas Instruments network drivers;
- Ethernet team driver;
- MediaTek network drivers;
- NVME drivers;
- PA-RISC drivers;
- PCI subsystem;
- Performance monitor drivers;
- Pin controllers subsystem;
- Chrome hardware platform drivers;
- x86 platform drivers;
- ARM PM domains;
- PPS (Pulse Per Second) driver;
- PWM drivers;
- Voltage and Current Regulator drivers;
- S/390 drivers;
- SCSI subsystem;
- Texas Instruments SoC drivers;
- SPI subsystem;
- Realtek RTL8723BS SDIO drivers;
- TCM subsystem;
- Userspace I/O drivers;
- Cadence USB3 driver;
- DesignWare USB3 driver;
- USB Gadget drivers;
- USB Host Controller drivers;
- Renesas USBHS Controller drivers;
- USB Mass Storage drivers;
- USB Type-C Connector System Software Interface driver;
- Backlight driver;
- Framebuffer layer;
- Watchdog drivers;
- BFS file system;
- BTRFS file system;
- File systems infrastructure;
- Ext4 file system;
- F2FS file system;
- FUSE (File system in Userspace);
- HFS file system;
- HFS+ file system;
- HugeTLB file system;
- Journaling layer for block devices (JBD2);
- JFS file system;
- Network file system (NFS) client;
- Network file system (NFS) server daemon;
- File system notification infrastructure;
- NTFS3 file system;
- OCFS2 file system;
- OrangeFS file system;
- Proc file system;
- SMB network file system;
- SquashFS file system;
- UDF file system;
- XFS file system;
- BPF subsystem;
- Ethernet bridge;
- Memory management;
- padata parallel execution mechanism;
- IP tunnels definitions;
- Network traffic control;
- Network sockets;
- XFRM subsystem;
- io_uring subsystem;
- Control group (cgroup);
- Locking primitives;
- Padata parallel execution mechanism;
- PID allocator;
- Scheduler infrastructure;
- Shadow Call Stack mechanism;
- Tracing infrastructure;
- 9P file system network protocol;
- Bluetooth subsystem;
- CAIF protocol;
- CAN network layer;
- Ceph Core library;
- Networking core;
- Ethtool driver;
- HSR network protocol;
- IPv4 networking;
- IPv6 networking;
- MAC80211 subsystem;
- Multipath TCP;
- Netfilter;
- NET/ROM layer;
- NFC subsystem;
- Open vSwitch;
- RF switch subsystem;
- Rose network layer;
- SCTP protocol;
- Sun RPC protocol;
- TIPC protocol;
- Unix domain sockets;
- VMware vSockets driver;
- Wireless networking;
- Rust bindings mechanism;
- Integrity Measurement Architecture(IMA) framework;
- Key management;
- Simplified Mandatory Access Control Kernel framework;
- FireWire sound drivers;
- Turtle Beach Wavefront ALSA driver;
- Intel ASoC drivers;
- STMicroelectronics SoC drivers;
- USB sound devices;
(CVE-2022-49465, CVE-2022-49635, CVE-2023-53041, CVE-2024-36903,
CVE-2024-36927, CVE-2024-37354, CVE-2024-41014, CVE-2024-46830,
CVE-2024-47666, CVE-2024-49968, CVE-2024-53114, CVE-2024-56538,
CVE-2024-58011, CVE-2025-21780, CVE-2025-21861, CVE-2025-22022,
CVE-2025-22058, CVE-2025-22111, CVE-2025-22121, CVE-2025-23143,
CVE-2025-37849, CVE-2025-38022, CVE-2025-38129, CVE-2025-38236,
CVE-2025-38248, CVE-2025-38556, CVE-2025-38584, CVE-2025-39869,
CVE-2025-39873, CVE-2025-39876, CVE-2025-39880, CVE-2025-39883,
CVE-2025-39885, CVE-2025-39907, CVE-2025-39911, CVE-2025-39913,
CVE-2025-39923, CVE-2025-39934, CVE-2025-39937, CVE-2025-39943,
CVE-2025-39945, CVE-2025-39949, CVE-2025-39951, CVE-2025-39953,
CVE-2025-39955, CVE-2025-39967, CVE-2025-39968, CVE-2025-39969,
CVE-2025-39970, CVE-2025-39971, CVE-2025-39972, CVE-2025-39973,
CVE-2025-39980, CVE-2025-39985, CVE-2025-39986, CVE-2025-39987,
CVE-2025-39988, CVE-2025-39994, CVE-2025-39995, CVE-2025-39996,
CVE-2025-39998, CVE-2025-40001, CVE-2025-40006, CVE-2025-40011,
CVE-2025-40020, CVE-2025-40021, CVE-2025-40026, CVE-2025-40027,
CVE-2025-40029, CVE-2025-40030, CVE-2025-40035, CVE-2025-40040,
CVE-2025-40042, CVE-2025-40043, CVE-2025-40044, CVE-2025-40048,
CVE-2025-40049, CVE-2025-40053, CVE-2025-40055, CVE-2025-40060,
CVE-2025-40068, CVE-2025-40070, CVE-2025-40078, CVE-2025-40081,
CVE-2025-40083, CVE-2025-40085, CVE-2025-40087, CVE-2025-40088,
CVE-2025-40092, CVE-2025-40094, CVE-2025-40105, CVE-2025-40106,
CVE-2025-40109, CVE-2025-40110, CVE-2025-40111, CVE-2025-40112,
CVE-2025-40115, CVE-2025-40116, CVE-2025-40118, CVE-2025-40120,
CVE-2025-40121, CVE-2025-40124, CVE-2025-40125, CVE-2025-40126,
CVE-2025-40127, CVE-2025-40134, CVE-2025-40140, CVE-2025-40153,
CVE-2025-40154, CVE-2025-40167, CVE-2025-40171, CVE-2025-40173,
CVE-2025-40178, CVE-2025-40179, CVE-2025-40183, CVE-2025-40187,
CVE-2025-40188, CVE-2025-40194, CVE-2025-40200, CVE-2025-40204,
CVE-2025-40205, CVE-2025-40211, CVE-2025-40215, CVE-2025-40219,
CVE-2025-40220, CVE-2025-40223, CVE-2025-40231, CVE-2025-40233,
CVE-2025-40240, CVE-2025-40243, CVE-2025-40244, CVE-2025-40245,
CVE-2025-40248, CVE-2025-40252, CVE-2025-40253, CVE-2025-40254,
CVE-2025-40257, CVE-2025-40258, CVE-2025-40259, CVE-2025-40261,
CVE-2025-40262, CVE-2025-40263, CVE-2025-40264, CVE-2025-40269,
CVE-2025-40271, CVE-2025-40272, CVE-2025-40273, CVE-2025-40275,
CVE-2025-40277, CVE-2025-40278, CVE-2025-40279, CVE-2025-40280,
CVE-2025-40281, CVE-2025-40282, CVE-2025-40283, CVE-2025-40304,
CVE-2025-40306, CVE-2025-40308, CVE-2025-40309, CVE-2025-40312,
CVE-2025-40313, CVE-2025-40314, CVE-2025-40315, CVE-2025-40317,
CVE-2025-40319, CVE-2025-40321, CVE-2025-40322, CVE-2025-40324,
CVE-2025-40331, CVE-2025-40342, CVE-2025-40343, CVE-2025-40345,
CVE-2025-40346, CVE-2025-40349, CVE-2025-40351, CVE-2025-40360,
CVE-2025-40363, CVE-2025-68168, CVE-2025-68176, CVE-2025-68177,
CVE-2025-68185, CVE-2025-68191, CVE-2025-68192, CVE-2025-68194,
CVE-2025-68200, CVE-2025-68204, CVE-2025-68217, CVE-2025-68220,
CVE-2025-68227, CVE-2025-68229, CVE-2025-68238, CVE-2025-68241,
CVE-2025-68244, CVE-2025-68245, CVE-2025-68249, CVE-2025-68254,
CVE-2025-68255, CVE-2025-68257, CVE-2025-68258, CVE-2025-68261,
CVE-2025-68264, CVE-2025-68266, CVE-2025-68282, CVE-2025-68284,
CVE-2025-68285, CVE-2025-68286, CVE-2025-68287, CVE-2025-68288,
CVE-2025-68289, CVE-2025-68290, CVE-2025-68295, CVE-2025-68301,
CVE-2025-68302, CVE-2025-68303, CVE-2025-68308, CVE-2025-68312,
CVE-2025-68321, CVE-2025-68325, CVE-2025-68327, CVE-2025-68328,
CVE-2025-68330, CVE-2025-68331, CVE-2025-68332, CVE-2025-68335,
CVE-2025-68336, CVE-2025-68337, CVE-2025-68339, CVE-2025-68344,
CVE-2025-68346, CVE-2025-68349, CVE-2025-68354, CVE-2025-68362,
CVE-2025-68364, CVE-2025-68366, CVE-2025-68367, CVE-2025-68372,
CVE-2025-68724, CVE-2025-68727, CVE-2025-68728, CVE-2025-68732,
CVE-2025-68733, CVE-2025-68734, CVE-2025-68740, CVE-2025-68746,
CVE-2025-68757, CVE-2025-68758, CVE-2025-68759, CVE-2025-68764,
CVE-2025-68765, CVE-2025-68767, CVE-2025-68769, CVE-2025-68771,
CVE-2025-68774, CVE-2025-68776, CVE-2025-68777, CVE-2025-68780,
CVE-2025-68782, CVE-2025-68783, CVE-2025-68785, CVE-2025-68787,
CVE-2025-68788, CVE-2025-68795, CVE-2025-68796, CVE-2025-68797,
CVE-2025-68799, CVE-2025-68800, CVE-2025-68801, CVE-2025-68803,
CVE-2025-68804, CVE-2025-68808, CVE-2025-68813, CVE-2025-68814,
CVE-2025-68815, CVE-2025-68816, CVE-2025-68818, CVE-2025-68819,
CVE-2025-68820, CVE-2025-71064, CVE-2025-71066, CVE-2025-71068,
CVE-2025-71069, CVE-2025-71075, CVE-2025-71077, CVE-2025-71078,
CVE-2025-71079, CVE-2025-71081, CVE-2025-71082, CVE-2025-71083,
CVE-2025-71084, CVE-2025-71085, CVE-2025-71086, CVE-2025-71087,
CVE-2025-71091, CVE-2025-71093, CVE-2025-71094, CVE-2025-71096,
CVE-2025-71097, CVE-2025-71098, CVE-2025-71102, CVE-2025-71104,
CVE-2025-71105, CVE-2025-71108, CVE-2025-71111, CVE-2025-71112,
CVE-2025-71113, CVE-2025-71114, CVE-2025-71116, CVE-2025-71118,
CVE-2025-71120, CVE-2025-71121, CVE-2025-71125, CVE-2025-71127,
CVE-2025-71131, CVE-2025-71132, CVE-2025-71133, CVE-2025-71136,
CVE-2025-71137, CVE-2025-71147, CVE-2025-71154, CVE-2025-71180,
CVE-2025-71182, CVE-2026-22976, CVE-2026-22977, CVE-2026-22978,
CVE-2026-22980, CVE-2026-22982, CVE-2026-22984, CVE-2026-22990,
CVE-2026-22991, CVE-2026-22992, CVE-2026-23019, CVE-2026-23020,
CVE-2026-23021, CVE-2026-23047, CVE-2026-23060, CVE-2026-23074,
CVE-2026-23111, CVE-2026-23202, CVE-2026-23207)