md/raid1,raid10: don't ignore IO flags

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-22125
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-04-16 15:16:06 UTC
Updated2026-04-27 14:16:22 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: md/raid1,raid10: don't ignore IO flags If blk-wbt is enabled by default, it's found that raid write performance is quite bad because all IO are throttled by wbt of underlying disks, due to flag REQ_IDLE is ignored. And turns out this behaviour exist since blk-wbt is introduced. Other than REQ_IDLE, other flags should not be ignored as well, for example REQ_META can be set for filesystems, clearing it can cause priority reverse problems; And REQ_NOWAIT should not be cleared as well, because io will wait instead of failing directly in underlying disks. Fix those problems by keep IO flags from master bio. Fises: f51d46d0e7cb ("md: add support for REQ_NOWAIT")

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem Types: NVD-CWE-noinfo

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 5404bc7a87b9949cf61e0174b21f80e73239ab25 10f4ff4baeb6951cf58282954318827b6852d501 git Not specified
CNA Linux Linux affected 5404bc7a87b9949cf61e0174b21f80e73239ab25 73506e581c0b1814cdfd2229d589f30751d7de26 git Not specified
CNA Linux Linux affected 5404bc7a87b9949cf61e0174b21f80e73239ab25 8a0adf3d778c4a0893c6d34a9e1b0082a6f1c495 git Not specified
CNA Linux Linux affected 5404bc7a87b9949cf61e0174b21f80e73239ab25 e879a0d9cb086c8e52ce6c04e5bfa63825a6213c git Not specified
CNA Linux Linux affected 2.6.19 Not specified
CNA Linux Linux unaffected 2.6.19 semver Not specified
CNA Linux Linux unaffected 6.6.136 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.46 6.12.* semver Not specified
CNA Linux Linux unaffected 6.14.2 6.14.* semver Not specified
CNA Linux Linux unaffected 6.15 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/e879a0d9cb086c8e52ce6c04e5bfa63825a6213c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/73506e581c0b1814cdfd2229d589f30751d7de26 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/8a0adf3d778c4a0893c6d34a9e1b0082a6f1c495 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/10f4ff4baeb6951cf58282954318827b6852d501 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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