[USN-8163-1] Linux kernel (Azure FIPS) vulnerabilities
[USN-8162-1] Linux kernel (NVIDIA Tegra) vulnerabilities
[USN-8145-4] Linux kernel (HWE) vulnerabilities
[USN-8165-1] Linux kernel (Azure FIPS) vulnerabilities
[USN-8164-1] Linux kernel (Intel IoTG Real-time) vulnerabilities
[USN-8154-2] Django vulnerabilities
[USN-8155-2] OpenSSL vulnerabilities
[USN-8163-1] Linux kernel (Azure FIPS) vulnerabilities
==========================================================================
Ubuntu Security Notice USN-8163-1
April 09, 2026
linux-azure-fips vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 22.04 LTS
Summary:
Several security issues were fixed in the Linux kernel.
Software Description:
- linux-azure-fips: Linux kernel for Microsoft Azure Cloud systems with FIPS
Details:
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)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 22.04 LTS
linux-image-5.15.0-1109-azure-fips 5.15.0-1109.118+fips1
Available with Ubuntu Pro
linux-image-azure-fips 5.15.0.1109.94
Available with Ubuntu Pro
linux-image-azure-fips-5.15 5.15.0.1109.94
Available with Ubuntu Pro
After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.
References:
https://ubuntu.com/security/notices/USN-8163-1
https://launchpad.net/bugs/2143853
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, 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
[USN-8162-1] Linux kernel (NVIDIA Tegra) vulnerabilities
==========================================================================
Ubuntu Security Notice USN-8162-1
April 09, 2026
linux-nvidia-tegra-5.15 vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
Summary:
Several security issues were fixed in the Linux kernel.
Software Description:
- linux-nvidia-tegra-5.15: Linux kernel for NVIDIA Tegra systems
Details:
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;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bluetooth drivers;
- DMA engine subsystem;
- GPU drivers;
- HID subsystem;
- Intel Trace Hub HW tracing drivers;
- IIO ADC drivers;
- IRQ chip drivers;
- Modular ISDN driver;
- LED subsystem;
- UACCE accelerator framework;
- Ethernet bonding driver;
- Network drivers;
- STMicroelectronics network drivers;
- Ethernet team driver;
- NVME drivers;
- PHY drivers;
- SLIMbus drivers;
- W1 Dallas's 1-wire bus driver;
- Xen hypervisor drivers;
- BTRFS file system;
- Ext4 file system;
- Network file system (NFS) client;
- Network file system (NFS) server daemon;
- NTFS3 file system;
- SMB network file system;
- NFC subsystem;
- BPF subsystem;
- IRQ subsystem;
- Memory management;
- Bluetooth subsystem;
- CAN network layer;
- Networking core;
- IPv4 networking;
- IPv6 networking;
- L2TP protocol;
- Netfilter;
- NET/ROM layer;
- Network traffic control;
- SCTP protocol;
- TLS protocol;
- XFRM subsystem;
- Creative Sound Blaster X-Fi driver;
- USB sound devices;
(CVE-2023-53421, CVE-2023-53520, CVE-2023-53662, CVE-2023-54207,
CVE-2025-37849, CVE-2025-38057, CVE-2025-38125, CVE-2025-38232,
CVE-2025-38408, CVE-2025-38591, CVE-2025-40149, CVE-2025-40164,
CVE-2025-68211, CVE-2025-68340, CVE-2025-68365, CVE-2025-68725,
CVE-2025-68817, CVE-2025-71080, CVE-2025-71163, CVE-2025-71185,
CVE-2025-71186, CVE-2025-71188, CVE-2025-71190, CVE-2025-71191,
CVE-2025-71194, CVE-2025-71196, CVE-2025-71197, CVE-2025-71199,
CVE-2026-22997, CVE-2026-22998, CVE-2026-22999, CVE-2026-23001,
CVE-2026-23003, CVE-2026-23011, CVE-2026-23026, CVE-2026-23033,
CVE-2026-23037, CVE-2026-23038, CVE-2026-23049, CVE-2026-23056,
CVE-2026-23058, CVE-2026-23060, CVE-2026-23061, CVE-2026-23063,
CVE-2026-23064, CVE-2026-23071, CVE-2026-23073, CVE-2026-23074,
CVE-2026-23075, CVE-2026-23076, CVE-2026-23078, CVE-2026-23080,
CVE-2026-23083, CVE-2026-23084, CVE-2026-23085, CVE-2026-23087,
CVE-2026-23089, CVE-2026-23090, CVE-2026-23091, CVE-2026-23093,
CVE-2026-23095, CVE-2026-23096, CVE-2026-23097, CVE-2026-23098,
CVE-2026-23099, CVE-2026-23101, CVE-2026-23103, CVE-2026-23105,
CVE-2026-23108, CVE-2026-23111, CVE-2026-23119, CVE-2026-23120,
CVE-2026-23121, CVE-2026-23124, CVE-2026-23125, CVE-2026-23128,
CVE-2026-23133, CVE-2026-23145, CVE-2026-23146, CVE-2026-23150,
CVE-2026-23164, CVE-2026-23167, CVE-2026-23170, CVE-2026-23209)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.04 LTS
linux-image-5.15.0-1057-nvidia-tegra 5.15.0-1057.57~20.04.1
Available with Ubuntu Pro
linux-image-5.15.0-1057-nvidia-tegra-rt 5.15.0-1057.57~20.04.1
Available with Ubuntu Pro
linux-image-nvidia-tegra 5.15.0.1057.57~20.04.1
Available with Ubuntu Pro
linux-image-nvidia-tegra-5.15 5.15.0.1057.57~20.04.1
Available with Ubuntu Pro
linux-image-nvidia-tegra-rt 5.15.0.1057.57~20.04.1
Available with Ubuntu Pro
linux-image-nvidia-tegra-rt-5.15 5.15.0.1057.57~20.04.1
Available with Ubuntu Pro
After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.
References:
https://ubuntu.com/security/notices/USN-8162-1
CVE-2023-53421, CVE-2023-53520, CVE-2023-53662, CVE-2023-54207,
CVE-2025-37849, CVE-2025-38057, CVE-2025-38125, CVE-2025-38232,
CVE-2025-38408, CVE-2025-38591, CVE-2025-40149, CVE-2025-40164,
CVE-2025-68211, CVE-2025-68340, CVE-2025-68365, CVE-2025-68725,
CVE-2025-68817, CVE-2025-71080, CVE-2025-71163, CVE-2025-71185,
CVE-2025-71186, CVE-2025-71188, CVE-2025-71190, CVE-2025-71191,
CVE-2025-71194, CVE-2025-71196, CVE-2025-71197, CVE-2025-71199,
CVE-2026-22997, CVE-2026-22998, CVE-2026-22999, CVE-2026-23001,
CVE-2026-23003, CVE-2026-23011, CVE-2026-23026, CVE-2026-23033,
CVE-2026-23037, CVE-2026-23038, CVE-2026-23049, CVE-2026-23056,
CVE-2026-23058, CVE-2026-23060, CVE-2026-23061, CVE-2026-23063,
CVE-2026-23064, CVE-2026-23071, CVE-2026-23073, CVE-2026-23074,
CVE-2026-23075, CVE-2026-23076, CVE-2026-23078, CVE-2026-23080,
CVE-2026-23083, CVE-2026-23084, CVE-2026-23085, CVE-2026-23087,
CVE-2026-23089, CVE-2026-23090, CVE-2026-23091, CVE-2026-23093,
CVE-2026-23095, CVE-2026-23096, CVE-2026-23097, CVE-2026-23098,
CVE-2026-23099, CVE-2026-23101, CVE-2026-23103, CVE-2026-23105,
CVE-2026-23108, CVE-2026-23111, CVE-2026-23119, CVE-2026-23120,
CVE-2026-23121, CVE-2026-23124, CVE-2026-23125, CVE-2026-23128,
CVE-2026-23133, CVE-2026-23145, CVE-2026-23146, CVE-2026-23150,
CVE-2026-23164, CVE-2026-23167, CVE-2026-23170, CVE-2026-23209
[USN-8145-4] Linux kernel (HWE) vulnerabilities
==========================================================================
Ubuntu Security Notice USN-8145-4
April 09, 2026
linux-hwe vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 LTS
Summary:
Several security issues were fixed in the Linux kernel.
Software Description:
- linux-hwe: Linux hardware enablement (HWE) kernel
Details:
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;
- Cryptographic API;
- UDF file system;
- NFC subsystem;
- Network traffic control;
(CVE-2024-46777, CVE-2025-21735, CVE-2025-37849, CVE-2026-23060,
CVE-2026-23074)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 16.04 LTS
linux-image-4.15.0-248-generic 4.15.0-248.260~16.04.1
Available with Ubuntu Pro
linux-image-4.15.0-248-lowlatency 4.15.0-248.260~16.04.1
Available with Ubuntu Pro
linux-image-generic-hwe-16.04 4.15.0.248.260~16.04.1
Available with Ubuntu Pro
linux-image-lowlatency-hwe-16.04 4.15.0.248.260~16.04.1
Available with Ubuntu Pro
linux-image-oem 4.15.0.248.260~16.04.1
Available with Ubuntu Pro
linux-image-virtual-hwe-16.04 4.15.0.248.260~16.04.1
Available with Ubuntu Pro
After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.
References:
https://ubuntu.com/security/notices/USN-8145-4
https://ubuntu.com/security/notices/USN-8145-3
https://ubuntu.com/security/notices/USN-8145-2
https://ubuntu.com/security/notices/USN-8145-1
CVE-2024-46777, CVE-2025-21735, CVE-2025-37849, CVE-2026-23060,
CVE-2026-23074
[USN-8165-1] Linux kernel (Azure FIPS) vulnerabilities
==========================================================================
Ubuntu Security Notice USN-8165-1
April 09, 2026
linux-azure-fips vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 24.04 LTS
Summary:
Several security issues were fixed in the Linux kernel.
Software Description:
- linux-azure-fips: Linux kernel for Microsoft Azure Cloud systems with FIPS
Details:
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;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Xtensa architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- ATM drivers;
- Drivers core;
- Block device driver;
- Network block device driver;
- Bluetooth drivers;
- Bus devices;
- Hardware random number generator core;
- Character device driver;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- Hardware crypto device drivers;
- Device frequency scaling framework;
- DMA engine subsystem;
- ARM SCMI message protocol;
- EFI core;
- Intel Stratix 10 firmware drivers;
- GPU drivers;
- HID subsystem;
- CoreSight HW tracing drivers;
- IIO subsystem;
- InfiniBand drivers;
- Input Device core drivers;
- Input Device (Miscellaneous) drivers;
- Input Device (Tablet) drivers;
- IOMMU subsystem;
- ISDN/mISDN subsystem;
- Mailbox framework;
- Multiple devices driver;
- Media drivers;
- Fastrpc Driver;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Ethernet bonding driver;
- Network drivers;
- Mellanox network drivers;
- STMicroelectronics network drivers;
- Texas Instruments network drivers;
- Ethernet team driver;
- NVME drivers;
- PCI subsystem;
- PCCARD (PCMCIA/CardBus) bus subsystem;
- Performance monitor drivers;
- Pin controllers subsystem;
- x86 platform drivers;
- ARM PM domains;
- PPS (Pulse Per Second) driver;
- PTP clock framework;
- PWM drivers;
- Remote Processor subsystem;
- S/390 drivers;
- SCSI subsystem;
- Texas Instruments SoC drivers;
- TCM subsystem;
- Trusted Execution Environment drivers;
- TTY drivers;
- 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;
- Virtio Host (VHOST) subsystem;
- Framebuffer layer;
- Xen hypervisor drivers;
- AFS file system;
- BTRFS file system;
- Ceph distributed file system;
- File systems infrastructure;
- EFI Variable file system;
- exFAT file system;
- Ext4 file system;
- F2FS file system;
- FUSE (File system in Userspace);
- GFS2 file system;
- HFS file system;
- HFS+ file system;
- HugeTLB file system;
- JFS file system;
- KERNFS 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;
- Diskquota system;
- SMB network file system;
- SquashFS file system;
- UDF file system;
- XFS file system;
- Asynchronous Transfer Mode (ATM) subsystem;
- BPF subsystem;
- Mellanox drivers;
- NFS page cache wrapper;
- Memory management;
- Memory Management;
- Media input infrastructure;
- Bluetooth subsystem;
- IP tunnels definitions;
- Network traffic control;
- Rose network layer;
- Network sockets;
- io_uring subsystem;
- Control group (cgroup);
- Kernel crash support code;
- Kernel futex primitives;
- PID allocator;
- Scheduler infrastructure;
- Syscalls implementation;
- Timer subsystem;
- Tracing infrastructure;
- 9P file system network protocol;
- Amateur Radio drivers;
- B.A.T.M.A.N. meshing protocol;
- Ethernet bridge;
- Ceph Core library;
- Networking core;
- Devlink API;
- IPv4 networking;
- IPv6 networking;
- MAC80211 subsystem;
- Multipath TCP;
- Netfilter;
- NFC subsystem;
- Open vSwitch;
- RF switch subsystem;
- SCTP protocol;
- SMC sockets;
- Sun RPC protocol;
- TIPC protocol;
- TLS protocol;
- VMware vSockets driver;
- Wireless networking;
- eXpress Data Path;
- XFRM subsystem;
- Integrity Measurement Architecture(IMA) framework;
- Intel ASoC drivers;
- QCOM ASoC drivers;
- USB sound devices;
(CVE-2025-21833, CVE-2025-22103, CVE-2025-22105, CVE-2025-22106,
CVE-2025-22107, CVE-2025-22113, CVE-2025-22121, CVE-2025-22124,
CVE-2025-22125, CVE-2025-23129, CVE-2025-23130, CVE-2025-23133,
CVE-2025-23143, CVE-2025-37860, CVE-2025-38105, CVE-2025-38502,
CVE-2025-38556, CVE-2025-38627, CVE-2025-38643, CVE-2025-38709,
CVE-2025-39678, CVE-2025-39697, CVE-2025-39805, CVE-2025-39806,
CVE-2025-39807, CVE-2025-39808, CVE-2025-39810, CVE-2025-39811,
CVE-2025-39812, CVE-2025-39813, CVE-2025-39815, CVE-2025-39817,
CVE-2025-39819, CVE-2025-39823, CVE-2025-39824, CVE-2025-39825,
CVE-2025-39826, CVE-2025-39827, CVE-2025-39828, CVE-2025-39829,
CVE-2025-39832, CVE-2025-39835, CVE-2025-39836, CVE-2025-39838,
CVE-2025-39839, CVE-2025-39841, CVE-2025-39842, CVE-2025-39843,
CVE-2025-39844, CVE-2025-39845, CVE-2025-39846, CVE-2025-39847,
CVE-2025-39848, CVE-2025-39849, CVE-2025-39850, CVE-2025-39851,
CVE-2025-39852, CVE-2025-39853, CVE-2025-39854, CVE-2025-39857,
CVE-2025-39860, CVE-2025-39861, CVE-2025-39863, CVE-2025-39864,
CVE-2025-39865, CVE-2025-39866, CVE-2025-39869, CVE-2025-39870,
CVE-2025-39871, CVE-2025-39873, CVE-2025-39876, CVE-2025-39877,
CVE-2025-39880, CVE-2025-39881, CVE-2025-39883, CVE-2025-39885,
CVE-2025-39886, CVE-2025-39891, CVE-2025-39894, CVE-2025-39895,
CVE-2025-39897, CVE-2025-39899, CVE-2025-39901, CVE-2025-39902,
CVE-2025-39907, CVE-2025-39909, CVE-2025-39911, CVE-2025-39913,
CVE-2025-39914, CVE-2025-39916, CVE-2025-39920, CVE-2025-39923,
CVE-2025-39927, CVE-2025-39929, CVE-2025-39931, CVE-2025-39932,
CVE-2025-39934, CVE-2025-39937, CVE-2025-39938, CVE-2025-39940,
CVE-2025-39942, CVE-2025-39943, CVE-2025-39944, CVE-2025-39945,
CVE-2025-39947, CVE-2025-39948, CVE-2025-39949, CVE-2025-39950,
CVE-2025-39951, CVE-2025-39952, CVE-2025-39953, CVE-2025-39955,
CVE-2025-39957, CVE-2025-39961, CVE-2025-39965, CVE-2025-39967,
CVE-2025-39968, CVE-2025-39969, CVE-2025-39970, CVE-2025-39971,
CVE-2025-39972, CVE-2025-39973, CVE-2025-39977, CVE-2025-39978,
CVE-2025-39980, CVE-2025-39981, CVE-2025-39982, CVE-2025-39985,
CVE-2025-39986, CVE-2025-39987, CVE-2025-39988, CVE-2025-39991,
CVE-2025-39992, CVE-2025-39994, CVE-2025-39995, CVE-2025-39996,
CVE-2025-39998, CVE-2025-40000, CVE-2025-40001, CVE-2025-40006,
CVE-2025-40008, CVE-2025-40009, CVE-2025-40010, CVE-2025-40011,
CVE-2025-40013, CVE-2025-40016, CVE-2025-40020, CVE-2025-40021,
CVE-2025-40024, CVE-2025-40026, CVE-2025-40027, CVE-2025-40029,
CVE-2025-40030, CVE-2025-40031, CVE-2025-40032, CVE-2025-40033,
CVE-2025-40035, CVE-2025-40036, CVE-2025-40037, CVE-2025-40038,
CVE-2025-40042, CVE-2025-40043, CVE-2025-40044, CVE-2025-40047,
CVE-2025-40048, CVE-2025-40049, CVE-2025-40051, CVE-2025-40052,
CVE-2025-40053, CVE-2025-40055, CVE-2025-40056, CVE-2025-40057,
CVE-2025-40058, CVE-2025-40059, CVE-2025-40060, CVE-2025-40061,
CVE-2025-40062, CVE-2025-40067, CVE-2025-40068, CVE-2025-40070,
CVE-2025-40071, CVE-2025-40077, CVE-2025-40078, CVE-2025-40079,
CVE-2025-40080, CVE-2025-40081, CVE-2025-40083, CVE-2025-40084,
CVE-2025-40085, CVE-2025-40087, CVE-2025-40088, CVE-2025-40092,
CVE-2025-40093, CVE-2025-40094, CVE-2025-40095, CVE-2025-40096,
CVE-2025-40099, CVE-2025-40100, CVE-2025-40101, CVE-2025-40103,
CVE-2025-40104, CVE-2025-40105, CVE-2025-40106, CVE-2025-40107,
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-2025-40123, CVE-2025-40124, CVE-2025-40125,
CVE-2025-40126, CVE-2025-40127, CVE-2025-40129, CVE-2025-40134,
CVE-2025-40137, CVE-2025-40140, CVE-2025-40141, CVE-2025-40153,
CVE-2025-40154, CVE-2025-40155, CVE-2025-40156, CVE-2025-40159,
CVE-2025-40160, CVE-2025-40165, CVE-2025-40166, CVE-2025-40167,
CVE-2025-40169, CVE-2025-40171, CVE-2025-40172, CVE-2025-40173,
CVE-2025-40176, CVE-2025-40178, CVE-2025-40179, CVE-2025-40180,
CVE-2025-40183, CVE-2025-40187, CVE-2025-40188, CVE-2025-40192,
CVE-2025-40193, CVE-2025-40194, CVE-2025-40196, CVE-2025-40198,
CVE-2025-40200, CVE-2025-40201, CVE-2025-40202, CVE-2025-40204,
CVE-2025-40205, CVE-2025-40206, CVE-2025-40207, CVE-2025-40211,
CVE-2025-40218, CVE-2025-40219, CVE-2025-40220, CVE-2025-40221,
CVE-2025-40223, CVE-2025-40226, CVE-2025-40231, CVE-2025-40233,
CVE-2025-40235, CVE-2025-40237, CVE-2025-40238, CVE-2025-40240,
CVE-2025-40242, CVE-2025-40243, CVE-2025-40244, CVE-2025-40245,
CVE-2025-40248, CVE-2025-40250, CVE-2025-40251, 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-2025-40266, CVE-2025-40268, 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-2025-40284,
CVE-2025-40285, CVE-2025-40286, CVE-2025-40287, CVE-2025-40288,
CVE-2025-40289, CVE-2025-40292, CVE-2025-40293, CVE-2025-40294,
CVE-2025-40301, CVE-2025-40303, CVE-2025-40304, CVE-2025-40305,
CVE-2025-40306, CVE-2025-40307, CVE-2025-40308, CVE-2025-40309,
CVE-2025-40310, CVE-2025-40311, CVE-2025-40312, CVE-2025-40313,
CVE-2025-40314, CVE-2025-40315, CVE-2025-40317, CVE-2025-40318,
CVE-2025-40319, CVE-2025-40320, CVE-2025-40321, CVE-2025-40322,
CVE-2025-40323, CVE-2025-40324, CVE-2025-40328, CVE-2025-40329,
CVE-2025-40331, CVE-2025-40333, CVE-2025-40337, CVE-2025-40339,
CVE-2025-40341, CVE-2025-40342, CVE-2025-40343, CVE-2025-40345,
CVE-2025-40346, CVE-2025-40347, CVE-2025-40349, CVE-2025-40350,
CVE-2025-40351, CVE-2025-40353, CVE-2025-40358, CVE-2025-40360,
CVE-2025-40363, CVE-2025-68168, CVE-2025-68171, CVE-2025-68172,
CVE-2025-68173, CVE-2025-68176, CVE-2025-68177, CVE-2025-68178,
CVE-2025-68179, CVE-2025-68180, CVE-2025-68183, CVE-2025-68184,
CVE-2025-68185, CVE-2025-68190, CVE-2025-68191, CVE-2025-68192,
CVE-2025-68194, CVE-2025-68198, CVE-2025-68200, CVE-2025-68201,
CVE-2025-68204, CVE-2025-68208, CVE-2025-68213, CVE-2025-68214,
CVE-2025-68217, CVE-2025-68218, CVE-2025-68219, CVE-2025-68220,
CVE-2025-68222, CVE-2025-68223, CVE-2025-68227, CVE-2025-68229,
CVE-2025-68231, CVE-2025-68233, CVE-2025-68235, CVE-2025-68237,
CVE-2025-68238, CVE-2025-68241, CVE-2025-68244, CVE-2025-68245,
CVE-2025-68246, CVE-2025-68249, CVE-2025-68282, CVE-2025-68283,
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-2025-68297, CVE-2025-68301, CVE-2025-68302, CVE-2025-68303,
CVE-2025-68305, CVE-2025-68307, CVE-2025-68308, CVE-2025-68310,
CVE-2025-68311, CVE-2025-68312, CVE-2025-68313, CVE-2025-68315,
CVE-2025-68320, CVE-2025-68321, CVE-2025-68322, CVE-2025-68327,
CVE-2025-68328, CVE-2025-68330, CVE-2025-68331, CVE-2025-68339,
CVE-2025-68340, CVE-2025-68342, CVE-2025-68343, CVE-2025-68734,
CVE-2026-23060, CVE-2026-23074, CVE-2026-23111)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 24.04 LTS
linux-image-6.8.0-1052-azure-fips 6.8.0-1052.58+fips1
Available with Ubuntu Pro
linux-image-azure-fips 6.8.0-1052.58+fips1
Available with Ubuntu Pro
linux-image-azure-fips-6.8 6.8.0-1052.58+fips1
Available with Ubuntu Pro
After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.
References:
https://ubuntu.com/security/notices/USN-8165-1
https://launchpad.net/bugs/2143853
CVE-2025-21833, CVE-2025-22103, CVE-2025-22105, CVE-2025-22106,
CVE-2025-22107, CVE-2025-22113, CVE-2025-22121, CVE-2025-22124,
CVE-2025-22125, CVE-2025-23129, CVE-2025-23130, CVE-2025-23133,
CVE-2025-23143, CVE-2025-37860, CVE-2025-38105, CVE-2025-38502,
CVE-2025-38556, CVE-2025-38627, CVE-2025-38643, CVE-2025-38709,
CVE-2025-39678, CVE-2025-39697, CVE-2025-39805, CVE-2025-39806,
CVE-2025-39807, CVE-2025-39808, CVE-2025-39810, CVE-2025-39811,
CVE-2025-39812, CVE-2025-39813, CVE-2025-39815, CVE-2025-39817,
CVE-2025-39819, CVE-2025-39823, CVE-2025-39824, CVE-2025-39825,
CVE-2025-39826, CVE-2025-39827, CVE-2025-39828, CVE-2025-39829,
CVE-2025-39832, CVE-2025-39835, CVE-2025-39836, CVE-2025-39838,
CVE-2025-39839, CVE-2025-39841, CVE-2025-39842, CVE-2025-39843,
CVE-2025-39844, CVE-2025-39845, CVE-2025-39846, CVE-2025-39847,
CVE-2025-39848, CVE-2025-39849, CVE-2025-39850, CVE-2025-39851,
CVE-2025-39852, CVE-2025-39853, CVE-2025-39854, CVE-2025-39857,
CVE-2025-39860, CVE-2025-39861, CVE-2025-39863, CVE-2025-39864,
CVE-2025-39865, CVE-2025-39866, CVE-2025-39869, CVE-2025-39870,
CVE-2025-39871, CVE-2025-39873, CVE-2025-39876, CVE-2025-39877,
CVE-2025-39880, CVE-2025-39881, CVE-2025-39883, CVE-2025-39885,
CVE-2025-39886, CVE-2025-39891, CVE-2025-39894, CVE-2025-39895,
CVE-2025-39897, CVE-2025-39899, CVE-2025-39901, CVE-2025-39902,
CVE-2025-39907, CVE-2025-39909, CVE-2025-39911, CVE-2025-39913,
CVE-2025-39914, CVE-2025-39916, CVE-2025-39920, CVE-2025-39923,
CVE-2025-39927, CVE-2025-39929, CVE-2025-39931, CVE-2025-39932,
CVE-2025-39934, CVE-2025-39937, CVE-2025-39938, CVE-2025-39940,
CVE-2025-39942, CVE-2025-39943, CVE-2025-39944, CVE-2025-39945,
CVE-2025-39947, CVE-2025-39948, CVE-2025-39949, CVE-2025-39950,
CVE-2025-39951, CVE-2025-39952, CVE-2025-39953, CVE-2025-39955,
CVE-2025-39957, CVE-2025-39961, CVE-2025-39965, CVE-2025-39967,
CVE-2025-39968, CVE-2025-39969, CVE-2025-39970, CVE-2025-39971,
CVE-2025-39972, CVE-2025-39973, CVE-2025-39977, CVE-2025-39978,
CVE-2025-39980, CVE-2025-39981, CVE-2025-39982, CVE-2025-39985,
CVE-2025-39986, CVE-2025-39987, CVE-2025-39988, CVE-2025-39991,
CVE-2025-39992, CVE-2025-39994, CVE-2025-39995, CVE-2025-39996,
CVE-2025-39998, CVE-2025-40000, CVE-2025-40001, CVE-2025-40006,
CVE-2025-40008, CVE-2025-40009, CVE-2025-40010, CVE-2025-40011,
CVE-2025-40013, CVE-2025-40016, CVE-2025-40020, CVE-2025-40021,
CVE-2025-40024, CVE-2025-40026, CVE-2025-40027, CVE-2025-40029,
CVE-2025-40030, CVE-2025-40031, CVE-2025-40032, CVE-2025-40033,
CVE-2025-40035, CVE-2025-40036, CVE-2025-40037, CVE-2025-40038,
CVE-2025-40042, CVE-2025-40043, CVE-2025-40044, CVE-2025-40047,
CVE-2025-40048, CVE-2025-40049, CVE-2025-40051, CVE-2025-40052,
CVE-2025-40053, CVE-2025-40055, CVE-2025-40056, CVE-2025-40057,
CVE-2025-40058, CVE-2025-40059, CVE-2025-40060, CVE-2025-40061,
CVE-2025-40062, CVE-2025-40067, CVE-2025-40068, CVE-2025-40070,
CVE-2025-40071, CVE-2025-40077, CVE-2025-40078, CVE-2025-40079,
CVE-2025-40080, CVE-2025-40081, CVE-2025-40083, CVE-2025-40084,
CVE-2025-40085, CVE-2025-40087, CVE-2025-40088, CVE-2025-40092,
CVE-2025-40093, CVE-2025-40094, CVE-2025-40095, CVE-2025-40096,
CVE-2025-40099, CVE-2025-40100, CVE-2025-40101, CVE-2025-40103,
CVE-2025-40104, CVE-2025-40105, CVE-2025-40106, CVE-2025-40107,
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-2025-40123, CVE-2025-40124, CVE-2025-40125,
CVE-2025-40126, CVE-2025-40127, CVE-2025-40129, CVE-2025-40134,
CVE-2025-40137, CVE-2025-40140, CVE-2025-40141, CVE-2025-40153,
CVE-2025-40154, CVE-2025-40155, CVE-2025-40156, CVE-2025-40159,
CVE-2025-40160, CVE-2025-40165, CVE-2025-40166, CVE-2025-40167,
CVE-2025-40169, CVE-2025-40171, CVE-2025-40172, CVE-2025-40173,
CVE-2025-40176, CVE-2025-40178, CVE-2025-40179, CVE-2025-40180,
CVE-2025-40183, CVE-2025-40187, CVE-2025-40188, CVE-2025-40192,
CVE-2025-40193, CVE-2025-40194, CVE-2025-40196, CVE-2025-40198,
CVE-2025-40200, CVE-2025-40201, CVE-2025-40202, CVE-2025-40204,
CVE-2025-40205, CVE-2025-40206, CVE-2025-40207, CVE-2025-40211,
CVE-2025-40218, CVE-2025-40219, CVE-2025-40220, CVE-2025-40221,
CVE-2025-40223, CVE-2025-40226, CVE-2025-40231, CVE-2025-40233,
CVE-2025-40235, CVE-2025-40237, CVE-2025-40238, CVE-2025-40240,
CVE-2025-40242, CVE-2025-40243, CVE-2025-40244, CVE-2025-40245,
CVE-2025-40248, CVE-2025-40250, CVE-2025-40251, 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-2025-40266, CVE-2025-40268, 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-2025-40284,
CVE-2025-40285, CVE-2025-40286, CVE-2025-40287, CVE-2025-40288,
CVE-2025-40289, CVE-2025-40292, CVE-2025-40293, CVE-2025-40294,
CVE-2025-40301, CVE-2025-40303, CVE-2025-40304, CVE-2025-40305,
CVE-2025-40306, CVE-2025-40307, CVE-2025-40308, CVE-2025-40309,
CVE-2025-40310, CVE-2025-40311, CVE-2025-40312, CVE-2025-40313,
CVE-2025-40314, CVE-2025-40315, CVE-2025-40317, CVE-2025-40318,
CVE-2025-40319, CVE-2025-40320, CVE-2025-40321, CVE-2025-40322,
CVE-2025-40323, CVE-2025-40324, CVE-2025-40328, CVE-2025-40329,
CVE-2025-40331, CVE-2025-40333, CVE-2025-40337, CVE-2025-40339,
CVE-2025-40341, CVE-2025-40342, CVE-2025-40343, CVE-2025-40345,
CVE-2025-40346, CVE-2025-40347, CVE-2025-40349, CVE-2025-40350,
CVE-2025-40351, CVE-2025-40353, CVE-2025-40358, CVE-2025-40360,
CVE-2025-40363, CVE-2025-68168, CVE-2025-68171, CVE-2025-68172,
CVE-2025-68173, CVE-2025-68176, CVE-2025-68177, CVE-2025-68178,
CVE-2025-68179, CVE-2025-68180, CVE-2025-68183, CVE-2025-68184,
CVE-2025-68185, CVE-2025-68190, CVE-2025-68191, CVE-2025-68192,
CVE-2025-68194, CVE-2025-68198, CVE-2025-68200, CVE-2025-68201,
CVE-2025-68204, CVE-2025-68208, CVE-2025-68213, CVE-2025-68214,
CVE-2025-68217, CVE-2025-68218, CVE-2025-68219, CVE-2025-68220,
CVE-2025-68222, CVE-2025-68223, CVE-2025-68227, CVE-2025-68229,
CVE-2025-68231, CVE-2025-68233, CVE-2025-68235, CVE-2025-68237,
CVE-2025-68238, CVE-2025-68241, CVE-2025-68244, CVE-2025-68245,
CVE-2025-68246, CVE-2025-68249, CVE-2025-68282, CVE-2025-68283,
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-2025-68297, CVE-2025-68301, CVE-2025-68302, CVE-2025-68303,
CVE-2025-68305, CVE-2025-68307, CVE-2025-68308, CVE-2025-68310,
CVE-2025-68311, CVE-2025-68312, CVE-2025-68313, CVE-2025-68315,
CVE-2025-68320, CVE-2025-68321, CVE-2025-68322, CVE-2025-68327,
CVE-2025-68328, CVE-2025-68330, CVE-2025-68331, CVE-2025-68339,
CVE-2025-68340, CVE-2025-68342, CVE-2025-68343, CVE-2025-68734,
CVE-2026-23060, CVE-2026-23074, CVE-2026-23111, 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
[USN-8164-1] Linux kernel (Intel IoTG Real-time) vulnerabilities
==========================================================================
Ubuntu Security Notice USN-8164-1
April 09, 2026
linux-intel-iot-realtime vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 22.04 LTS
Summary:
Several security issues were fixed in the Linux kernel.
Software Description:
- linux-intel-iot-realtime: Linux kernel for Intel IoT Real-time platforms
Details:
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;
- Cryptographic API;
- Netfilter;
- Network traffic control;
(CVE-2025-37849, CVE-2026-23060, CVE-2026-23074, CVE-2026-23111)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 22.04 LTS
linux-image-5.15.0-1096-intel-iot-realtime 5.15.0-1096.98
Available with Ubuntu Pro
linux-image-intel-iot-realtime 5.15.0.1096.100
Available with Ubuntu Pro
linux-image-intel-iot-realtime-5.15 5.15.0.1096.100
Available with Ubuntu Pro
After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.
References:
https://ubuntu.com/security/notices/USN-8164-1
https://launchpad.net/bugs/2143853
CVE-2025-37849, CVE-2026-23060, CVE-2026-23074, CVE-2026-23111,
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
[USN-8154-2] Django vulnerabilities
==========================================================================
Ubuntu Security Notice USN-8154-2
April 09, 2026
python-django vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in Django.
Software Description:
- python-django: High-level Python web development framework
Details:
USN-8154-1 fixed vulnerabilities in Django. This update provides the
corresponding updates for CVE-2026-33033 and CVE-2026-4292 in Ubuntu 14.04
LTS and Ubuntu 16.04 LTS, and CVE-2026-4277 in Ubuntu 16.04 LTS.
Original advisory details:
Seokchan Yoon discovered that Django incorrectly handled copying memory
when parsing multipart uploads with excessive whitespace. A remote
attacker could possibly use this issue to cause Django to use excessive
resources, leading to a denial of service. (CVE-2026-33033)
It was discovered that Django did not enforce an upload memory size limit
in the Content-Length header. A remote attacker could possibly use this
issue to cause Django to use excessive resources, leading to a denial of
service. This issue only affected Ubuntu 24.04 LTS and Ubuntu 25.10.
(CVE-2026-33034)
Tarek Nakkouch discovered that Django incorrectly handled underscores in
the ASGI headers. A remote attacker could possibly use this issue to spoof
HTTP headers. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS,
and Ubuntu 25.10. (CVE-2026-3902)
It was discovered that Django incorrectly handled verification of model
data created with POST requests. A remote attacker could possibly use this
issue to forge new model permissions. (CVE-2026-4277, CVE-2026-4292)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 16.04 LTS
python-django 1.8.7-1ubuntu5.15+esm12
Available with Ubuntu Pro
python3-django 1.8.7-1ubuntu5.15+esm12
Available with Ubuntu Pro
Ubuntu 14.04 LTS
python-django 1.6.11-0ubuntu1.3+esm11
Available with Ubuntu Pro
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-8154-2
https://ubuntu.com/security/notices/USN-8154-1
CVE-2026-33033, CVE-2026-4277, CVE-2026-4292
[USN-8155-2] OpenSSL vulnerabilities
==========================================================================
Ubuntu Security Notice USN-8155-2
April 09, 2026
openssl, openssl1.0 vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in OpenSSL.
Software Description:
- openssl: Secure Socket Layer (SSL) cryptographic library and tools
- openssl1.0: Secure Socket Layer (SSL) cryptographic library and tools
Details:
USN-8155-1 fixed vulnerabilities in OpenSSL. This update provides the
corresponding updates for CVE-2026-28387 for openssl in Ubuntu 20.04 LTS.
CVE-2026-28388 for openssl and openssl1.0 in Ubuntu 14.04 LTS, Ubuntu 16.04
LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS, and CVE-2026-28389 and
CVE-2026-28390 for openssl and openssl1.0 for Ubuntu 16.04 LTS, Ubuntu
18.04 LTS, and Ubuntu 20.04 LTS.
Original advisory details:
Viktor Dukhovni discovered that OpenSSL incorrectly negotiated the
expected preferred key exchange group when used as a TLS 1.3 server. This
could result in a less preferred key exchange being used, contrary to
expectations. This issue only affected Ubuntu 25.10. (CVE-2026-2673)
Igor Morgenstern discovered that OpenSSL incorrectly handled certain
memory operations when used as a DANE client. A remote attacker could use
this issue to cause OpenSSL to crash, resulting in a denial of service, or
possibly execute arbitrary code. (CVE-2026-28387)
Igor Morgenstern discovered that OpenSSL incorrectly handled certain
memory operations when processing a delta CRL. A remote attacker could
possibly use this issue to cause OpenSSL to crash, resulting in a denial
of service. (CVE-2026-28388)
Nathan Sportsman, Daniel Rhea, and Jaeho Nam discovered that OpenSSL
incorrectly handled certain memory operations when processing a crafted
CMS EnvelopedData message with KeyAgreeRecipientInfo. A remote attacker
could possibly use this issue to cause OpenSSL to crash, resulting in a
denial of service. (CVE-2026-28389)
Muhammad Daffa, Joshua Rogers, and Chanho Kim discovered that OpenSSL
incorrectly handled processing of a crafted CMS EnvelopedData message with
KeyTransportRecipientInfo. A remote attacker could possibly use this issue
to cause OpenSSL to crash, resulting in a denial of service.
(CVE-2026-28390)
Quoc Tran discovered that OpenSSL incorrectly handled hexadecimal
conversion on 32-bit platforms. A remote attacker could use this issue to
cause OpenSSL to crash, resulting in a denial of service, or possibly
execute arbitrary code. (CVE-2026-31789)
Simo Sorce discovered that OpenSSL incorrectly handled failures in RSA KEM
RSASVE Encapsulation. A remote attacker could possibly use this issue to
obtain sensitive information. (CVE-2026-31790)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.04 LTS
libssl1.1 1.1.1f-1ubuntu2.24+esm3
Available with Ubuntu Pro
openssl 1.1.1f-1ubuntu2.24+esm3
Available with Ubuntu Pro
Ubuntu 18.04 LTS
libssl1.0.0 1.0.2n-1ubuntu5.13+esm4
Available with Ubuntu Pro
libssl1.1 1.1.1-1ubuntu2.1~18.04.23+esm8
Available with Ubuntu Pro
openssl 1.1.1-1ubuntu2.1~18.04.23+esm8
Available with Ubuntu Pro
openssl1.0 1.0.2n-1ubuntu5.13+esm4
Available with Ubuntu Pro
Ubuntu 16.04 LTS
libssl1.0.0 1.0.2g-1ubuntu4.20+esm15
Available with Ubuntu Pro
openssl 1.0.2g-1ubuntu4.20+esm15
Available with Ubuntu Pro
Ubuntu 14.04 LTS
libssl1.0.0 1.0.1f-1ubuntu2.27+esm13
Available with Ubuntu Pro
openssl 1.0.1f-1ubuntu2.27+esm13
Available with Ubuntu Pro
After a standard system update you need to reboot your computer to make all
the necessary changes.
References:
https://ubuntu.com/security/notices/USN-8155-2
https://ubuntu.com/security/notices/USN-8155-1
CVE-2026-28387, CVE-2026-28388, CVE-2026-28389, CVE-2026-28390
