CVE-2026-72440
- Source
- https://cve.org/CVERecord?id=CVE-2026-72440
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72440.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-72440
- Downstream
- Published
- 2026-08-15T05:56:52Z
- Modified
- 2026-08-18T03:56:43Z
- Severity
-
- 7.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H CVSS Calculator
- Summary
- md/raid1: fix writes_pending and barrier reference leaks on write failures
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
md/raid1: fix writes_pending and barrier reference leaks on write failures
raid1_make_request() acquires a writes_pending reference with md_write_start() before calling raid1_write_request(). Several failure paths in raid1_write_request() complete the bio and return without reaching the normal write completion path, causing the corresponding md_write_end() to be skipped.
Make raid1_write_request() return a status indicating whether the write request was successfully queued. This allows raid1_make_request() to call md_write_end() when raid1_write_request() fails.
Additionally, if wait_blocked_rdev() fails after wait_barrier() succeeds, the associated barrier reference is not released.
Call allow_barrier() before returning from that path to keep the barrier accounting balanced.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72440.json" }- References
-
- https://git.kernel.org/stable/c/8e065a1602511282fc0da2dc89445e0eb71a681c
- https://git.kernel.org/stable/c/bffbbfcbd9393e315a7a4286dcd70e875265db9a
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72440.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-72440
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git