CVE-2026-72437
Description
In the Linux kernel, the following vulnerability has been resolved: md/raid1: free r1_bio when REQ_NOWAIT is set and read would block on retry When a read is retried, raid1_read_request() may be called with a pre-allocated r1_bio. If wait_read_barrier() fails for a REQ_NOWAIT read, the bio is completed and the function returns immediately. In this case the existing r1_bio is leaked. This fixes a leak of pre-allocated r1_bio structures for retried reads.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://git.kernel.org/stable/c/69ad6ce47f9bf2b9fe0ed69b042db993d33bbf12
- https://git.kernel.org/stable/c/6d92dbd73d19a0622f60352ce9d9379f7a760112
- https://git.kernel.org/stable/c/c66ed3e6371f5dba8f5d8ab810d6683ddc99201e
- https://git.kernel.org/stable/c/c6e6354295845698d2fdfa20b71fc404786f7e93
- https://git.kernel.org/stable/c/d1eda529a4bf6b866d02755723ee0eb1f037a5ed
- https://git.kernel.org/stable/c/db58075bc9c2ad2731f9c063859b47104bc2e7ef
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.