Always-Incorrect Control Flow Implementation in Linux kernel - CVE-2026-93240
Published: September 25, 2026
Vulnerability identifier: #VU152164
CSH Severity: Low
CVSS v4: 0 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-93240
CWE-ID: CWE-670
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to trigger a kernel warning.
The vulnerability exists due to improper execution-context handling in the cgroup v1 memory soft limit reclaim path when soft limit reclaim invokes lru_gen_shrink_lruvec() from kswapd. A local user can configure memory.soft_limit_in_bytes to trigger a kernel warning.
Affected software
Linux kernel
How to mitigate CVE-2026-93240
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3