Out-of-bounds write in Linux kernel - CVE-2026-97936

Vulnerability details

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

The vulnerability exists due to an out-of-bounds write in the tracing histogram stacktrace handling when configuring a histogram trigger with the .stacktrace modifier on a non-stacktrace field. A local user can write a crafted histogram trigger configuration to corrupt memory.

Affected software

How to mitigate CVE-2026-97936

External References

• https://git.kernel.org/stable/c/55caaf25da2c2bb9b75307e4c868726cb954b1d6
• https://git.kernel.org/stable/c/57bfc2a17954d173d2a4182f3b582ffbb23aff64
• https://git.kernel.org/stable/c/a5e70ba87ca8ebc79b4e63de302d03b0625fe153
• https://git.kernel.org/stable/c/e183b84968d4a6ea476d806ea97668405aa56880

Related Security Bulletins

• Out-of-bounds write in Linux kernel trace