CVE-2026-74374
md/raid1,raid10: fix error-path detection with md_cloned_bio()
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 15, 2026 |
| Last Updated | Oct 21, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
689389a06ce79fdced85b5115717f71c71e623e0 < 80eaeae0e4b1ed2418fd2b9088238651fb51df69 689389a06ce79fdced85b5115717f71c71e623e0 < 8719aa0f57955fd641f952d16e02fc6b4934c6e3 689389a06ce79fdced85b5115717f71c71e623e0 < 029b363c9b690613141338436ac91366b1928af2 689389a06ce79fdced85b5115717f71c71e623e0 < 20fb582c92fd64e5c8bd83c6176264b2794603b7 689389a06ce79fdced85b5115717f71c71e623e0 < 811545e0926d02a6a0b1a1258bb5544777c164d4
Linux / Linux
4.12
References
git.kernel.org: https://git.kernel.org/stable/c/80eaeae0e4b1ed2418fd2b9088238651fb51df69 git.kernel.org: https://git.kernel.org/stable/c/8719aa0f57955fd641f952d16e02fc6b4934c6e3 git.kernel.org: 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/811545e0926d02a6a0b1a1258bb5544777c164d4