Vulnerability details
CVE-2026-74374
Linux Linux
md/raid1,raid10: fix error-path detection with md_cloned_bio()
CVSS 3.1
7.5High
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.5High | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 4.12 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 689389a06ce79fdced85b5115717f71c71e623e0 ≤ v < 80eaeae0e4b1ed2418fd2b9088238651fb51df69 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 689389a06ce79fdced85b5115717f71c71e623e0 ≤ v < 8719aa0f57955fd641f952d16e02fc6b4934c6e3 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 689389a06ce79fdced85b5115717f71c71e623e0 ≤ v < 029b363c9b690613141338436ac91366b1928af2 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 689389a06ce79fdced85b5115717f71c71e623e0 ≤ v < 20fb582c92fd64e5c8bd83c6176264b2794603b7 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 689389a06ce79fdced85b5115717f71c71e623e0 ≤ v < 811545e0926d02a6a0b1a1258bb5544777c164d4 | CVEProject cvelistV5 (CNA) |
References and advisories
5- https://git.kernel.org/stable/c/80eaeae0e4b1ed2418fd2b9088238651fb51df69
- https://git.kernel.org/stable/c/8719aa0f57955fd641f952d16e02fc6b4934c6e3
- https://git.kernel.org/stable/c/029b363c9b690613141338436ac91366b1928af2
- https://git.kernel.org/stable/c/20fb582c92fd64e5c8bd83c6176264b2794603b7
- https://git.kernel.org/stable/c/811545e0926d02a6a0b1a1258bb5544777c164d4
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Details
- Published
- 2026-08-15
- Last updated
- 2026-10-21
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.63%
Probability of exploitation in 30 days
50.3%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- —