CVEvulnerability
CVE-2026-74374
7.5 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-08-15
- Last modified
- 2026-10-21
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
In the Linux kernel, the following vulnerability has been resolved:
md/raid1,raid10: fix error-path detection with md_cloned_bio()
Detect the error path using md_cloned_bio() instead of relying
on r1_bio in raid1 or r10_bio->read_slot in raid10, which may be
NULL or -1 after splitting and resubmitting a failed bio.
As a result, the error path may not be recognized and memory
allocations can incorrectly use GFP_NOIO instead of
(GFP_NOIO | __GFP_HIGH), which can lead to a deadlock under
memory pressure.
References
- https://git.kernel.org/stable/c/029b363c9b690613141338436ac91366b1928af2 git.kernel.org
- https://git.kernel.org/stable/c/20fb582c92fd64e5c8bd83c6176264b2794603b7 git.kernel.org
- https://git.kernel.org/stable/c/80eaeae0e4b1ed2418fd2b9088238651fb51df69 git.kernel.org
- https://git.kernel.org/stable/c/811545e0926d02a6a0b1a1258bb5544777c164d4 git.kernel.org
- https://git.kernel.org/stable/c/8719aa0f57955fd641f952d16e02fc6b4934c6e3 git.kernel.org