SB20260928265 - Race condition in Linux kernel mm

Description

This security bulletin contains information about 1 vulnerability.

1) Race condition (CVE-ID: CVE-2026-97941)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

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

The vulnerability exists due to a race condition involving an ABA problem in __slab_try_return_freelist() in mm/slub.c when concurrently returning slab freelists. A local user can trigger concurrent slab allocation and freeing operations to cause a denial of service.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/4a724bcf5d703e18957397914d79156fa2cf1174
• https://git.kernel.org/stable/c/570a6aaf6b52c6ec098f4811cdb52b1496f13d15