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Ubuntu 22.04 LTS Kernel Update USN-8275-1 Privilege Escalation

ubuntu
Calendar Grey May 19, 2026
Dist Ubuntu Esm H88
Severe security issues fixed in Ubuntu's Linux kernel for Xilinx ZynqMP processors requiring immediate attention.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-xilinx-zynqmp: Linux kernel for Xilinx ZynqMP processors

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;

- HI...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory Ubuntu elevated privileges local attacker permission checks linux-xilinx-zynqmp

Update Instructions

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

Ubuntu 22.04 LTS
  linux-image-5.15.0-1070-xilinx-zynqmp  5.15.0-1070.74
  linux-image-xilinx-zynqmp       5.15.0.1070.73
  linux-image-xilinx-zynqmp-5.15  5.15.0.1070.73

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-8275-1

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, CVE-2026-23273

Severity
important
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-8275-1

Topics%20covered

Topics Covered

security advisory Ubuntu elevated privileges local attacker permission checks linux-xilinx-zynqmp

Package Information

https://launchpad.net/ubuntu/+source/linux-xilinx-zynqmp/5.15.0-1070.74

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