{"id":"CVE-2025-22125","state":"PUBLISHED","title":"md/raid1,raid10: don't ignore IO flags","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid1,raid10: don't ignore IO flags\n\nIf blk-wbt is enabled by default, it's found that raid write performance\nis quite bad because all IO are throttled by wbt of underlying disks,\ndue to flag REQ_IDLE is ignored. And turns out this behaviour exist since\nblk-wbt is introduced.\n\nOther than REQ_IDLE, other flags should not be ignored as well, for\nexample REQ_META can be set for filesystems, clearing it can cause priority\nreverse problems; And REQ_NOWAIT should not be cleared as well, because\nio will wait instead of failing directly in underlying disks.\n\nFix those problems by keep IO flags from master bio.\n\nFises: f51d46d0e7cb (\"md: add support for REQ_NOWAIT\")","publishedAt":"2025-04-16T14:13:08.779Z","updatedAt":"2026-05-11T21:13:27.100Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5404bc7a87b9949cf61e0174b21f80e73239ab25","status":"affected","lessThan":"10f4ff4baeb6951cf58282954318827b6852d501","versionType":"git"},{"version":"5404bc7a87b9949cf61e0174b21f80e73239ab25","status":"affected","lessThan":"73506e581c0b1814cdfd2229d589f30751d7de26","versionType":"git"},{"version":"5404bc7a87b9949cf61e0174b21f80e73239ab25","status":"affected","lessThan":"8a0adf3d778c4a0893c6d34a9e1b0082a6f1c495","versionType":"git"},{"version":"5404bc7a87b9949cf61e0174b21f80e73239ab25","status":"affected","lessThan":"e879a0d9cb086c8e52ce6c04e5bfa63825a6213c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/raid1.c","drivers/md/raid10.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.19","versionType":"semver"},{"version":"6.6.136","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.46","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.14.2","status":"unaffected","lessThanOrEqual":"6.14.*","versionType":"semver"},{"version":"6.15","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/raid1.c","drivers/md/raid10.c"]}],"references":["https://git.kernel.org/stable/c/10f4ff4baeb6951cf58282954318827b6852d501","https://git.kernel.org/stable/c/73506e581c0b1814cdfd2229d589f30751d7de26","https://git.kernel.org/stable/c/8a0adf3d778c4a0893c6d34a9e1b0082a6f1c495","https://git.kernel.org/stable/c/e879a0d9cb086c8e52ce6c04e5bfa63825a6213c"],"weaknesses":[],"ingestedAt":"2026-10-29T20:08:39.238Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/22xxx/CVE-2025-22125.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-22125","state":"PUBLISHED","datePublished":"2025-04-16T14:13:08.779Z","dateUpdated":"2026-05-11T21:13:27.100Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-12-29T08:45:45.823Z"},"containers":{"cna":{"title":"md/raid1,raid10: don't ignore IO flags","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmd/raid1,raid10: don't ignore IO flags\n\nIf blk-wbt is enabled by default, it's found that raid write performance\nis quite bad because all IO are throttled by wbt of underlying disks,\ndue to flag REQ_IDLE is ignored. And turns out this behaviour exist since\nblk-wbt is introduced.\n\nOther than REQ_IDLE, other flags should not be ignored as well, for\nexample REQ_META can be set for filesystems, clearing it can cause priority\nreverse problems; And REQ_NOWAIT should not be cleared as well, because\nio will wait instead of failing directly in underlying disks.\n\nFix those problems by keep IO flags from master bio.\n\nFises: f51d46d0e7cb (\"md: add support for REQ_NOWAIT\")"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5404bc7a87b9949cf61e0174b21f80e73239ab25","status":"affected","lessThan":"10f4ff4baeb6951cf58282954318827b6852d501","versionType":"git"},{"version":"5404bc7a87b9949cf61e0174b21f80e73239ab25","status":"affected","lessThan":"73506e581c0b1814cdfd2229d589f30751d7de26","versionType":"git"},{"version":"5404bc7a87b9949cf61e0174b21f80e73239ab25","status":"affected","lessThan":"8a0adf3d778c4a0893c6d34a9e1b0082a6f1c495","versionType":"git"},{"version":"5404bc7a87b9949cf61e0174b21f80e73239ab25","status":"affected","lessThan":"e879a0d9cb086c8e52ce6c04e5bfa63825a6213c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/raid1.c","drivers/md/raid10.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.19","versionType":"semver"},{"version":"6.6.136","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.46","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.14.2","status":"unaffected","lessThanOrEqual":"6.14.*","versionType":"semver"},{"version":"6.15","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/raid1.c","drivers/md/raid10.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/10f4ff4baeb6951cf58282954318827b6852d501"},{"url":"https://git.kernel.org/stable/c/73506e581c0b1814cdfd2229d589f30751d7de26"},{"url":"https://git.kernel.org/stable/c/8a0adf3d778c4a0893c6d34a9e1b0082a6f1c495"},{"url":"https://git.kernel.org/stable/c/e879a0d9cb086c8e52ce6c04e5bfa63825a6213c"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:13:27.100Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.19","versionEndExcluding":"6.6.136"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.19","versionEndExcluding":"6.12.46"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.19","versionEndExcluding":"6.14.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.19","versionEndExcluding":"6.15"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}