Riskcovery

CVE-2026-74374

md/raid1,raid10: fix error-path detection with md_cloned_bio()

State
Published
Severity
7.5 High
Published
Aug 15, 2026
Updated
Oct 21, 2026
Reserved
Aug 15, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 689389a06ce79fdced85b5115717f71c71e623e0 to before 80eaeae0e4b1ed2418fd2b9088238651fb51df69Affected
  • 689389a06ce79fdced85b5115717f71c71e623e0 to before 8719aa0f57955fd641f952d16e02fc6b4934c6e3Affected
  • 689389a06ce79fdced85b5115717f71c71e623e0 to before 029b363c9b690613141338436ac91366b1928af2Affected
  • 689389a06ce79fdced85b5115717f71c71e623e0 to before 20fb582c92fd64e5c8bd83c6176264b2794603b7Affected
  • 689389a06ce79fdced85b5115717f71c71e623e0 to before 811545e0926d02a6a0b1a1258bb5544777c164d4Affected
LinuxLinux
  • 4.12Affected
  • before 4.12Not affected
  • 6.6.160 through 6.6.*Not affected
  • 6.12.114 through 6.12.*Not affected
  • 6.18.57 through 6.18.*Not affected
  • 7.1.5 through 7.1.*Not affected
  • 7.2 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.