Always-Incorrect Control Flow Implementation in Linux kernel - CVE-2026-43311

 

Always-Incorrect Control Flow Implementation in Linux kernel - CVE-2026-43311

Published: May 9, 2026


Vulnerability identifier: #VU130868
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-43311
CWE-ID: CWE-670
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper execution context handling in the Tegra PMC resume handler when resuming from system suspend. A local user can trigger a suspend and resume cycle to cause a kernel warning and destabilize the system.

The issue is observed on Tegra platforms during wake handling after system suspend.


Affected software

Linux kernel
Anolis OS
bpftool
kernel
kernel-debug
kernel-debug-devel
kernel-devel
kernel-headers
kernel-tools
kernel-tools-libs
kernel-tools-libs-devel
perf
python3-perf

How to mitigate CVE-2026-43311

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
bpftool - update to 6.6.102-7
kernel - update to 6.6.102-7
kernel-debug - update to 6.6.102-7
kernel-debug-devel - update to 6.6.102-7
kernel-devel - update to 6.6.102-7
kernel-headers - update to 6.6.102-7
kernel-tools - update to 6.6.102-7
kernel-tools-libs - update to 6.6.102-7
kernel-tools-libs-devel - update to 6.6.102-7
perf - update to 6.6.102-7
python3-perf - update to 6.6.102-7

External References

Related Security Bulletins