CVE-2025-22125
MEDIUM EPSS 5.1%
Published Apr 16, 20251y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Published Apr 16, 2025 1y ago
Last Modified Jun 17, 2026 2w ago
Description
In 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")
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
5.1% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Affected Products 2
References 4
- git.kernel.org https://git.kernel.org/stable/c/10f4ff4baeb6951cf58282954318827b6852d501
- git.kernel.org https://git.kernel.org/stable/c/73506e581c0b1814cdfd2229d589f30751d7de26
- git.kernel.org https://git.kernel.org/stable/c/8a0adf3d778c4a0893c6d34a9e1b0082a6f1c495
- git.kernel.org https://git.kernel.org/stable/c/e879a0d9cb086c8e52ce6c04e5bfa63825a6213c
Remediation
- git.kernel.org https://git.kernel.org/stable/c/73506e581c0b1814cdfd2229d589f30751d7de26
- git.kernel.org https://git.kernel.org/stable/c/8a0adf3d778c4a0893c6d34a9e1b0082a6f1c495
- git.kernel.org https://git.kernel.org/stable/c/e879a0d9cb086c8e52ce6c04e5bfa63825a6213c