CVEvulnerability

CVE-2026-45955

7.1 HIGH Published 2026-05-27 Modified 2026-10-19 Official page ↗
Status
Modified
Published
2026-05-27
Last modified
2026-10-19
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
7.1 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Weaknesses
CWE-404

Description

In the Linux kernel, the following vulnerability has been resolved: md/md-llbitmap: fix percpu_ref not resurrected on suspend timeout When llbitmap_suspend_timeout() times out waiting for percpu_ref to become zero, it returns -ETIMEDOUT without resurrecting the percpu_ref. The caller (md_llbitmap_daemon_fn) then continues to the next page without calling llbitmap_resume(), leaving the percpu_ref in a killed state permanently. Fix this by resurrecting the percpu_ref before returning the error, ensuring the page control structure remains usable for subsequent operations.

Affected configurations

• linux linux kernel (>= 6.18 < 6.18.14) • linux linux kernel (>= 6.19 < 6.19.4)

Related

Weakness · CWE (1)

  • CWE-404 Improper Resource Shutdown or Release weakness

References