CVEvulnerability
CVE-2026-72437
- Status
- Received
- Published
- 2026-08-15
- Last modified
- 2026-08-17
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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.
References
- https://git.kernel.org/stable/c/69ad6ce47f9bf2b9fe0ed69b042db993d33bbf12 git.kernel.org
- https://git.kernel.org/stable/c/6d92dbd73d19a0622f60352ce9d9379f7a760112 git.kernel.org
- https://git.kernel.org/stable/c/c66ed3e6371f5dba8f5d8ab810d6683ddc99201e git.kernel.org
- https://git.kernel.org/stable/c/c6e6354295845698d2fdfa20b71fc404786f7e93 git.kernel.org
- https://git.kernel.org/stable/c/d1eda529a4bf6b866d02755723ee0eb1f037a5ed git.kernel.org
- https://git.kernel.org/stable/c/db58075bc9c2ad2731f9c063859b47104bc2e7ef git.kernel.org