Kernel, Evince, Path-to-Regex and more updates for Ubuntu

Ubuntu 7097 Published by

Ubuntu released a batch of security notices that address critical vulnerabilities across multiple Linux kernel variants and several user space applications. These patches cover cloud-specific kernels for Azure, Google Cloud, and Oracle alongside FIPS-compliant and low latency variants across Ubuntu releases from 18.04 through 26.04. Exploits in the cryptographic subsystems and network drivers could let attackers escalate privileges or break out of containers, while distinct bugs in Evince and node-path-to-regexp open doors for arbitrary code execution and denial of service attacks.

[USN-8296-1] Linux kernel (FIPS) vulnerabilities
[USN-8277-2] Linux kernel (Oracle) vulnerabilities
[USN-8291-2] Linux kernel (Low Latency) vulnerabilities
[USN-8295-1] Evince vulnerability
[USN-8290-1] Path-to-Regexp vulnerability
[USN-8279-2] Linux kernel (GCP) vulnerabilities
[USN-8281-2] Linux kernel (Azure) vulnerabilities
[USN-8297-1] Linux kernel (GCP) vulnerabilities
[USN-8280-2] Linux kernel (Azure)vulnerabilities




[USN-8296-1] Linux kernel (FIPS) vulnerabilities


==========================================================================
Ubuntu Security Notice USN-8296-1
May 22, 2026

linux-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-fips: Linux kernel with FIPS

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;
- x86 architecture;
- Compute Acceleration Framework;
- Drivers core;
- Null block device driver;
- Ublk userspace block driver;
- Bluetooth drivers;
- Counter interface drivers;
- DMA engine subsystem;
- DPLL subsystem;
- GPU drivers;
- HID subsystem;
- Intel Trace Hub HW tracing drivers;
- IIO ADC drivers;
- IIO subsystem;
- On-Chip Interconnect management framework;
- IRQ chip drivers;
- Modular ISDN driver;
- LED subsystem;
- Multiple devices driver;
- UACCE accelerator framework;
- MMC subsystem;
- Ethernet bonding driver;
- Network drivers;
- Mellanox network drivers;
- NVME drivers;
- PHY drivers;
- x86 platform drivers;
- i.MX PM domains;
- SCSI subsystem;
- SLIMbus drivers;
- SPI subsystem;
- TCM subsystem;
- W1 Dallas's 1-wire bus driver;
- Xen hypervisor drivers;
- BTRFS file system;
- EFI Variable file system;
- exFAT file system;
- Ext4 file system;
- HFS+ file system;
- Network file system (NFS) client;
- Network file system (NFS) server daemon;
- NTFS3 file system;
- SMB network file system;
- Scheduler infrastructure;
- Netfilter;
- NFC subsystem;
- Tracing infrastructure;
- io_uring subsystem;
- BPF subsystem;
- Perf events;
- Floating proportions library;
- Memory management;
- Bluetooth subsystem;
- CAN network layer;
- Ceph Core library;
- Networking core;
- IPv4 networking;
- IPv6 networking;
- L2TP protocol;
- MAC80211 subsystem;
- NET/ROM layer;
- Network traffic control;
- SCTP protocol;
- TLS protocol;
- Unix domain sockets;
- VMware vSockets driver;
- Wireless networking;
- ALSA AC97 driver;
- Generic PCM loopback sound driver;
- Creative Sound Blaster X-Fi driver;
- AMD SoC Alsa drivers;
- Texas InstrumentS Audio (ASoC/HDA) drivers;
- USB sound devices;
- KVM subsystem;
(CVE-2024-50004, CVE-2024-58096, CVE-2024-58097, CVE-2025-37926,
CVE-2025-38201, CVE-2025-38591, CVE-2025-40039, CVE-2025-40082,
CVE-2025-40149, CVE-2025-68351, CVE-2025-68358, CVE-2025-68365,
CVE-2025-68725, CVE-2025-68749, CVE-2025-68803, CVE-2025-68823,
CVE-2025-71160, CVE-2025-71162, CVE-2025-71163, CVE-2025-71180,
CVE-2025-71182, CVE-2025-71183, CVE-2025-71184, CVE-2025-71185,
CVE-2025-71186, CVE-2025-71188, CVE-2025-71189, CVE-2025-71190,
CVE-2025-71191, CVE-2025-71192, CVE-2025-71193, CVE-2025-71194,
CVE-2025-71195, CVE-2025-71196, CVE-2025-71197, CVE-2025-71198,
CVE-2025-71199, CVE-2025-71200, CVE-2025-71220, CVE-2025-71222,
CVE-2025-71224, CVE-2025-71225, CVE-2025-71268, CVE-2026-22976,
CVE-2026-22977, CVE-2026-22978, CVE-2026-22979, CVE-2026-22980,
CVE-2026-22982, CVE-2026-22984, CVE-2026-22990, CVE-2026-22991,
CVE-2026-22992, CVE-2026-22994, CVE-2026-22996, CVE-2026-22997,
CVE-2026-22998, CVE-2026-22999, CVE-2026-23000, CVE-2026-23001,
CVE-2026-23003, CVE-2026-23005, CVE-2026-23006, CVE-2026-23010,
CVE-2026-23011, CVE-2026-23019, CVE-2026-23020, CVE-2026-23021,
CVE-2026-23025, CVE-2026-23026, CVE-2026-23030, CVE-2026-23031,
CVE-2026-23032, CVE-2026-23033, CVE-2026-23035, CVE-2026-23037,
CVE-2026-23038, CVE-2026-23047, CVE-2026-23049, CVE-2026-23050,
CVE-2026-23053, CVE-2026-23054, CVE-2026-23056, CVE-2026-23057,
CVE-2026-23058, CVE-2026-23059, CVE-2026-23061, CVE-2026-23062,
CVE-2026-23063, CVE-2026-23064, CVE-2026-23065, CVE-2026-23068,
CVE-2026-23069, CVE-2026-23071, CVE-2026-23073, CVE-2026-23075,
CVE-2026-23076, CVE-2026-23078, CVE-2026-23080, CVE-2026-23083,
CVE-2026-23084, CVE-2026-23085, CVE-2026-23086, CVE-2026-23087,
CVE-2026-23088, CVE-2026-23089, CVE-2026-23090, CVE-2026-23091,
CVE-2026-23093, CVE-2026-23094, CVE-2026-23095, CVE-2026-23096,
CVE-2026-23097, CVE-2026-23098, CVE-2026-23099, CVE-2026-23101,
CVE-2026-23102, CVE-2026-23103, CVE-2026-23105, CVE-2026-23107,
CVE-2026-23108, CVE-2026-23110, CVE-2026-23113, CVE-2026-23116,
CVE-2026-23119, CVE-2026-23120, CVE-2026-23121, CVE-2026-23123,
CVE-2026-23124, CVE-2026-23125, CVE-2026-23126, CVE-2026-23128,
CVE-2026-23129, CVE-2026-23131, CVE-2026-23133, CVE-2026-23135,
CVE-2026-23136, CVE-2026-23139, CVE-2026-23140, CVE-2026-23141,
CVE-2026-23142, CVE-2026-23144, CVE-2026-23145, CVE-2026-23146,
CVE-2026-23148, CVE-2026-23150, CVE-2026-23151, CVE-2026-23156,
CVE-2026-23159, CVE-2026-23160, CVE-2026-23163, CVE-2026-23164,
CVE-2026-23166, CVE-2026-23167, CVE-2026-23168, CVE-2026-23170,
CVE-2026-23172, CVE-2026-23173, CVE-2026-23176, CVE-2026-23178,
CVE-2026-23179, CVE-2026-23180, CVE-2026-23182, CVE-2026-23187,
CVE-2026-23190, CVE-2026-23191, CVE-2026-23193, CVE-2026-23198,
CVE-2026-23200, CVE-2026-23202, CVE-2026-23204, CVE-2026-23205,
CVE-2026-23206, CVE-2026-23212, CVE-2026-23213, CVE-2026-23214,
CVE-2026-23215, CVE-2026-23216, CVE-2026-23254, CVE-2026-23256,
CVE-2026-23257, CVE-2026-23258, CVE-2026-23260, CVE-2026-23261,
CVE-2026-23262, CVE-2026-23264, CVE-2026-23274, CVE-2026-23351,
CVE-2026-23394)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 24.04 LTS
linux-image-6.8.0-116-fips 6.8.0-116.116+fips1
Available with Ubuntu Pro
linux-image-fips 6.8.0-116.116+fips1
Available with Ubuntu Pro
linux-image-fips-6.8 6.8.0-116.116+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-8296-1
CVE-2024-50004, CVE-2024-58096, CVE-2024-58097, CVE-2025-37926,
CVE-2025-38201, CVE-2025-38591, CVE-2025-40039, CVE-2025-40082,
CVE-2025-40149, CVE-2025-68351, CVE-2025-68358, CVE-2025-68365,
CVE-2025-68725, CVE-2025-68749, CVE-2025-68803, CVE-2025-68823,
CVE-2025-71160, CVE-2025-71162, CVE-2025-71163, CVE-2025-71180,
CVE-2025-71182, CVE-2025-71183, CVE-2025-71184, CVE-2025-71185,
CVE-2025-71186, CVE-2025-71188, CVE-2025-71189, CVE-2025-71190,
CVE-2025-71191, CVE-2025-71192, CVE-2025-71193, CVE-2025-71194,
CVE-2025-71195, CVE-2025-71196, CVE-2025-71197, CVE-2025-71198,
CVE-2025-71199, CVE-2025-71200, CVE-2025-71220, CVE-2025-71222,
CVE-2025-71224, CVE-2025-71225, CVE-2025-71268, CVE-2026-22976,
CVE-2026-22977, CVE-2026-22978, CVE-2026-22979, CVE-2026-22980,
CVE-2026-22982, CVE-2026-22984, CVE-2026-22990, CVE-2026-22991,
CVE-2026-22992, CVE-2026-22994, CVE-2026-22996, CVE-2026-22997,
CVE-2026-22998, CVE-2026-22999, CVE-2026-23000, CVE-2026-23001,
CVE-2026-23003, CVE-2026-23005, CVE-2026-23006, CVE-2026-23010,
CVE-2026-23011, CVE-2026-23019, CVE-2026-23020, CVE-2026-23021,
CVE-2026-23025, CVE-2026-23026, CVE-2026-23030, CVE-2026-23031,
CVE-2026-23032, CVE-2026-23033, CVE-2026-23035, CVE-2026-23037,
CVE-2026-23038, CVE-2026-23047, CVE-2026-23049, CVE-2026-23050,
CVE-2026-23053, CVE-2026-23054, CVE-2026-23056, CVE-2026-23057,
CVE-2026-23058, CVE-2026-23059, CVE-2026-23061, CVE-2026-23062,
CVE-2026-23063, CVE-2026-23064, CVE-2026-23065, CVE-2026-23068,
CVE-2026-23069, CVE-2026-23071, CVE-2026-23073, CVE-2026-23075,
CVE-2026-23076, CVE-2026-23078, CVE-2026-23080, CVE-2026-23083,
CVE-2026-23084, CVE-2026-23085, CVE-2026-23086, CVE-2026-23087,
CVE-2026-23088, CVE-2026-23089, CVE-2026-23090, CVE-2026-23091,
CVE-2026-23093, CVE-2026-23094, CVE-2026-23095, CVE-2026-23096,
CVE-2026-23097, CVE-2026-23098, CVE-2026-23099, CVE-2026-23101,
CVE-2026-23102, CVE-2026-23103, CVE-2026-23105, CVE-2026-23107,
CVE-2026-23108, CVE-2026-23110, CVE-2026-23113, CVE-2026-23116,
CVE-2026-23119, CVE-2026-23120, CVE-2026-23121, CVE-2026-23123,
CVE-2026-23124, CVE-2026-23125, CVE-2026-23126, CVE-2026-23128,
CVE-2026-23129, CVE-2026-23131, CVE-2026-23133, CVE-2026-23135,
CVE-2026-23136, CVE-2026-23139, CVE-2026-23140, CVE-2026-23141,
CVE-2026-23142, CVE-2026-23144, CVE-2026-23145, CVE-2026-23146,
CVE-2026-23148, CVE-2026-23150, CVE-2026-23151, CVE-2026-23156,
CVE-2026-23159, CVE-2026-23160, CVE-2026-23163, CVE-2026-23164,
CVE-2026-23166, CVE-2026-23167, CVE-2026-23168, CVE-2026-23170,
CVE-2026-23172, CVE-2026-23173, CVE-2026-23176, CVE-2026-23178,
CVE-2026-23179, CVE-2026-23180, CVE-2026-23182, CVE-2026-23187,
CVE-2026-23190, CVE-2026-23191, CVE-2026-23193, CVE-2026-23198,
CVE-2026-23200, CVE-2026-23202, CVE-2026-23204, CVE-2026-23205,
CVE-2026-23206, CVE-2026-23212, CVE-2026-23213, CVE-2026-23214,
CVE-2026-23215, CVE-2026-23216, CVE-2026-23254, CVE-2026-23256,
CVE-2026-23257, CVE-2026-23258, CVE-2026-23260, CVE-2026-23261,
CVE-2026-23262, CVE-2026-23264, CVE-2026-23274, CVE-2026-23351,
CVE-2026-23394

Package Information:
https://launchpad.net/ubuntu/+source/linux-fips/6.8.0-116.116+fips1



[USN-8277-2] Linux kernel (Oracle) vulnerabilities


==========================================================================
Ubuntu Security Notice USN-8277-2
May 22, 2026

linux-oracle-6.17 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-oracle-6.17: Linux kernel for Oracle Cloud systems

Details:

It was discovered that the Linux kernel algif_aead module did not properly
handle in-place cryptographic operations. This flaw is known as Copy Fail.
A local attacker could use this to escalate privileges, or possibly escape
a container. (CVE-2026-31431)

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:
- S390 architecture;
- Cryptographic API;
- GPU drivers;
- Ethernet bonding driver;
- Network file system (NFS) server daemon;
- Distributed Switch Architecture;
- Netfilter;
- Control group (cgroup);
- Kernel kexec() syscall;
- Memory management;
- MAC80211 subsystem;
- Multipath TCP;
- Packet sockets;
- TLS protocol;
- Unix domain sockets;
(CVE-2025-71088, CVE-2025-71090, CVE-2025-71127, CVE-2025-71134,
CVE-2025-71139, CVE-2025-71141, CVE-2025-71142, CVE-2025-71144,
CVE-2025-71152, CVE-2025-71155, CVE-2026-23274, CVE-2026-23351,
CVE-2026-23394, CVE-2026-31419, CVE-2026-31504, CVE-2026-31533,
CVE-2026-43033, CVE-2026-43077, CVE-2026-43078)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 24.04 LTS
linux-image-6.17.0-1014-oracle 6.17.0-1014.14~24.04.1
linux-image-6.17.0-1014-oracle-64k 6.17.0-1014.14~24.04.1
linux-image-oracle 6.17.0-1014.14~24.04.1
linux-image-oracle-6.17 6.17.0-1014.14~24.04.1
linux-image-oracle-64k 6.17.0-1014.14~24.04.1
linux-image-oracle-64k-6.17 6.17.0-1014.14~24.04.1

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-8277-2
https://ubuntu.com/security/notices/USN-8277-1
CVE-2025-71088, CVE-2025-71090, CVE-2025-71127, CVE-2025-71134,
CVE-2025-71139, CVE-2025-71141, CVE-2025-71142, CVE-2025-71144,
CVE-2025-71152, CVE-2025-71155, CVE-2026-23274, CVE-2026-23351,
CVE-2026-23394, CVE-2026-31419, CVE-2026-31431, CVE-2026-31504,
CVE-2026-31533, CVE-2026-43033, CVE-2026-43077, CVE-2026-43078

Package Information:

https://launchpad.net/ubuntu/+source/linux-oracle-6.17/6.17.0-1014.14~24.04.1



[USN-8291-2] Linux kernel (Low Latency) vulnerabilities


==========================================================================
Ubuntu Security Notice USN-8291-2
May 22, 2026

linux-lowlatency-hwe-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-lowlatency-hwe-5.15: Linux low latency 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:
- SMB network file system;
- Netfilter;
- io_uring subsystem;
(CVE-2024-35862, CVE-2024-50060, CVE-2026-23274, CVE-2026-23351)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 20.04 LTS
linux-image-5.15.0-178-lowlatency 5.15.0-178.188~20.04.1
Available with Ubuntu Pro
linux-image-5.15.0-178-lowlatency-64k 5.15.0-178.188~20.04.1
Available with Ubuntu Pro
linux-image-lowlatency-5.15 5.15.0.178.188~20.04.1
Available with Ubuntu Pro
linux-image-lowlatency-64k-5.15 5.15.0.178.188~20.04.1
Available with Ubuntu Pro
linux-image-lowlatency-64k-hwe-20.04 5.15.0.178.188~20.04.1
Available with Ubuntu Pro
linux-image-lowlatency-hwe-20.04 5.15.0.178.188~20.04.1
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-8291-2
https://ubuntu.com/security/notices/USN-8291-1
CVE-2024-35862, CVE-2024-50060, CVE-2026-23274, CVE-2026-23351



[USN-8295-1] Evince vulnerability


==========================================================================
Ubuntu Security Notice USN-8295-1
May 22, 2026

evince vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 26.04 LTS
- Ubuntu 25.10
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS

Summary:

Evince could be made to run programs as your login if it opened a
specially crafted file.

Software Description:
- evince: Document viewer

Details:

It was discovered that Evince did not properly sanitize command-line
arguments in PDF /GoToR actions. If a user opened a specially crafted PDF
file, an attacker could possibly use this issue to execute arbitrary code.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 26.04 LTS
evince 49~alpha-2ubuntu2.1
evince-common 49~alpha-2ubuntu2.1

Ubuntu 25.10
evince 48.1-3ubuntu2.1
evince-common 48.1-3ubuntu2.1

Ubuntu 24.04 LTS
evince 46.3.1-0ubuntu1.1
evince-common 46.3.1-0ubuntu1.1

Ubuntu 22.04 LTS
evince 42.3-0ubuntu3.2
evince-common 42.3-0ubuntu3.2

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-8295-1
CVE-2026-46529

Package Information:
https://launchpad.net/ubuntu/+source/evince/49~alpha-2ubuntu2.1
https://launchpad.net/ubuntu/+source/evince/48.1-3ubuntu2.1
https://launchpad.net/ubuntu/+source/evince/46.3.1-0ubuntu1.1
https://launchpad.net/ubuntu/+source/evince/42.3-0ubuntu3.2



[USN-8290-1] Path-to-Regexp vulnerability


==========================================================================
Ubuntu Security Notice USN-8290-1
May 21, 2026

node-path-to-regexp vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Path-to-Regexp could be made to crash if it received specially crafted
network traffic.

Software Description:
- node-path-to-regexp: Turn a path string such as /user/:name into a regular expression.

Details:

It was discovered that Path-to-Regexp incorrectly handled route patterns
containing multiple named parameters separated by non-delimiter characters
such as hyphens. An attacker could possibly use this issue to cause a denial
of service via catastrophic backtracking in the generated regular expressions.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 24.04 LTS
node-path-to-regexp 6.2.1-1ubuntu0.1~esm1
Available with Ubuntu Pro

Ubuntu 22.04 LTS
node-path-to-regexp 6.2.0-2ubuntu0.1~esm1
Available with Ubuntu Pro

Ubuntu 20.04 LTS
node-path-to-regexp 6.1.0-2ubuntu0.1~esm1
Available with Ubuntu Pro

Ubuntu 18.04 LTS
node-path-to-regexp 1.0.1-1ubuntu0.18.04.1~esm1
Available with Ubuntu Pro

Ubuntu 16.04 LTS
node-path-to-regexp 1.0.1-1ubuntu0.16.04.1~esm1
Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-8290-1
CVE-2024-45296



[USN-8279-2] Linux kernel (GCP) vulnerabilities


==========================================================================
Ubuntu Security Notice USN-8279-2
May 22, 2026

linux-gcp-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-gcp-5.15: Linux kernel for Google Cloud Platform (GCP) systems

Details:

It was discovered that the Linux kernel algif_aead module did not properly
handle in-place cryptographic operations. This flaw is known as Copy Fail.
A local attacker could use this to escalate privileges, or possibly escape
a container. (CVE-2026-31431)

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:
- Cryptographic API;
- Ethernet bonding driver;
- SMB network file system;
- Netfilter;
- io_uring subsystem;
- Packet sockets;
- TLS protocol;
(CVE-2024-35862, CVE-2024-50060, CVE-2026-23274, CVE-2026-23351,
CVE-2026-31419, CVE-2026-31504, CVE-2026-31533, CVE-2026-43033,
CVE-2026-43077, CVE-2026-43078)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 20.04 LTS
linux-image-5.15.0-1108-gcp 5.15.0-1108.117~20.04.1
Available with Ubuntu Pro
linux-image-gcp 5.15.0.1108.117~20.04.1
Available with Ubuntu Pro
linux-image-gcp-5.15 5.15.0.1108.117~20.04.1
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-8279-2
https://ubuntu.com/security/notices/USN-8279-1
CVE-2024-35862, CVE-2024-50060, CVE-2026-23274, CVE-2026-23351,
CVE-2026-31419, CVE-2026-31431, CVE-2026-31504, CVE-2026-31533,
CVE-2026-43033, CVE-2026-43077, CVE-2026-43078



[USN-8281-2] Linux kernel (Azure) vulnerabilities


==========================================================================
Ubuntu Security Notice USN-8281-2
May 22, 2026

linux-azure-4.15, linux-azure-fips vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-azure-4.15: Linux kernel for Microsoft Azure Cloud systems
- linux-azure-fips: Linux kernel for Microsoft Azure Cloud systems with FIPS

Details:

It was discovered that the Linux kernel algif_aead module did not properly
handle in-place cryptographic operations. This flaw is known as Copy Fail.
A local attacker could use this to escalate privileges, or possibly escape
a container. (CVE-2026-31431)

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:
- Cryptographic API;
- Packet sockets;
(CVE-2026-31504, CVE-2026-43033, CVE-2026-43077, CVE-2026-43078)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 18.04 LTS
linux-image-4.15.0-1201-azure 4.15.0-1201.216
Available with Ubuntu Pro
linux-image-4.15.0-2110-azure-fips 4.15.0-2110.116
Available with Ubuntu Pro
linux-image-azure-4.15 4.15.0.1201.169
Available with Ubuntu Pro
linux-image-azure-fips 4.15.0.2110.106
Available with Ubuntu Pro
linux-image-azure-fips-4.15 4.15.0.2110.106
Available with Ubuntu Pro
linux-image-azure-lts-18.04 4.15.0.1201.169
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-8281-2
https://ubuntu.com/security/notices/USN-8281-1
CVE-2026-31431, CVE-2026-31504, CVE-2026-43033, CVE-2026-43077,
CVE-2026-43078



[USN-8297-1] Linux kernel (GCP) vulnerabilities


==========================================================================
Ubuntu Security Notice USN-8297-1
May 22, 2026

linux-gcp-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-gcp-5.15: Linux kernel for Google Cloud Platform (GCP) systems

Details:

Stonejiajia, Shir Tamari and Sagi Tzadik discovered that the OverlayFS
implementation in the Ubuntu Linux kernel did not properly perform
permission checks in certain situations. A local attacker could possibly
use this to gain elevated privileges. (CVE-2023-2640)

Shir Tamari and Sagi Tzadik discovered that the OverlayFS implementation in
the Ubuntu Linux kernel did not properly perform permission checks in
certain situations. A local attacker could possibly use this to gain
elevated privileges. (CVE-2023-32629)

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;
- 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;
- 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-2025-38057, 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-2025-71162, 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-2026-23061, CVE-2026-23063, CVE-2026-23064, CVE-2026-23071,
CVE-2026-23073, 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-2026-23112, 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-5.15.0-1106-gcp 5.15.0-1106.115~20.04.1
Available with Ubuntu Pro
linux-image-gcp 5.15.0.1106.115~20.04.1
Available with Ubuntu Pro
linux-image-gcp-5.15 5.15.0.1106.115~20.04.1
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-8297-1
CVE-2023-2640, CVE-2023-32629, CVE-2023-53421, CVE-2023-53520,
CVE-2023-53662, CVE-2023-54207, 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-2025-71162, 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-2026-23061, CVE-2026-23063,
CVE-2026-23064, CVE-2026-23071, CVE-2026-23073, 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-2026-23112, 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-8280-2] Linux kernel (Azure)vulnerabilities


==========================================================================
Ubuntu Security Notice USN-8280-2
May 22, 2026

linux-azure, linux-azure-5.4, linux-azure-fips vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in the Linux kernel.

Software Description:
- linux-azure: Linux kernel for Microsoft Azure Cloud systems
- linux-azure-fips: Linux kernel for Microsoft Azure Cloud systems with FIPS
- linux-azure-5.4: Linux kernel for Microsoft Azure cloud systems

Details:

It was discovered that the Linux kernel algif_aead module did not properly
handle in-place cryptographic operations. This flaw is known as Copy Fail.
A local attacker could use this to escalate privileges, or possibly escape
a container. (CVE-2026-31431)

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:
- Cryptographic API;
- Packet sockets;
- TLS protocol;
(CVE-2026-31504, CVE-2026-31533, CVE-2026-43033, CVE-2026-43077,
CVE-2026-43078)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 20.04 LTS
linux-image-5.4.0-1163-azure 5.4.0-1163.169
Available with Ubuntu Pro
linux-image-5.4.0-1163-azure-fips 5.4.0-1163.169+fips1
Available with Ubuntu Pro
linux-image-azure-5.4 5.4.0.1163.155
Available with Ubuntu Pro
linux-image-azure-fips 5.4.0.1163.99
Available with Ubuntu Pro
linux-image-azure-fips-5.4 5.4.0.1163.99
Available with Ubuntu Pro
linux-image-azure-lts-20.04 5.4.0.1163.155
Available with Ubuntu Pro

Ubuntu 18.04 LTS
linux-image-5.4.0-1163-azure 5.4.0-1163.169~18.04.1
Available with Ubuntu Pro
linux-image-azure 5.4.0.1163.169~18.04.1
Available with Ubuntu Pro
linux-image-azure-5.4 5.4.0.1163.169~18.04.1
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-8280-2
https://ubuntu.com/security/notices/USN-8280-1
CVE-2026-31431, CVE-2026-31504, CVE-2026-31533, CVE-2026-43033,
CVE-2026-43077, CVE-2026-43078


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