CVE-2025-22125

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")

Reserved 2024-12-29 | Published 2025-04-16 | Updated 2025-05-26 | Assigner Linux

Product status

Default status
unaffected

5404bc7a87b9949cf61e0174b21f80e73239ab25 before 8a0adf3d778c4a0893c6d34a9e1b0082a6f1c495
affected

5404bc7a87b9949cf61e0174b21f80e73239ab25 before e879a0d9cb086c8e52ce6c04e5bfa63825a6213c
affected

Default status
affected

2.6.19
affected

Any version before 2.6.19
unaffected

6.14.2
unaffected

6.15
unaffected

References

git.kernel.org/...c/8a0adf3d778c4a0893c6d34a9e1b0082a6f1c495

git.kernel.org/...c/e879a0d9cb086c8e52ce6c04e5bfa63825a6213c

cve.org (CVE-2025-22125)

nvd.nist.gov (CVE-2025-22125)

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