CVE-2026-45955
- Source
- https://cve.org/CVERecord?id=CVE-2026-45955
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45955.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-45955
- Downstream
- Published
- 2026-05-27T12:18:10Z
- Modified
- 2026-08-12T03:51:13Z
- Severity
-
- 7.1 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H CVSS Calculator
- Summary
- md/md-llbitmap: fix percpu_ref not resurrected on suspend timeout
- Details
-
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.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45955.json" }- References
-
- https://git.kernel.org/stable/c/095417d6b669c2dec39a5842ccb94df915f97f54
- https://git.kernel.org/stable/c/2446d099350185caeed19ab2c0270451a97296fb
- https://git.kernel.org/stable/c/d119bd2e1643cc023210ff3c6f0657e4f914e71d
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45955.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-45955
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git