CVE-2026-93285
kernel: f2fs: embed f2fs_gc_kthread in f2fs_sb_info
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 24, 2026
Updated · September 29, 2026
Description
A flaw was found in the Linux kernel's Flash-Friendly File System (F2FS). A race condition exists during filesystem remount or shutdown operations where background garbage collection tasks are improperly synchronized with teardown routines. A local user could exploit this timing flaw through concurrent filesystem operations, leading to an invalid memory access and a kernel crash that results in a Denial of Service (DoS).
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 · NULL Pointer Dereference