CVE-2026-90401
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
md: remove REQ_NOWAIT support from raid1/10/456
In the Linux kernel, the following vulnerability has been resolved: md: remove REQ_NOWAIT support from raid1/10/456 REQ_NOWAIT support in md personalities that can block internally is fundamentally incomplete. While reads can avoid some blocking paths, write requests can still encounter cases where one mirror succeeds while another returns -EAGAIN. At that point md cannot distinguish queue pressure from a real device failure, so it can neither record a bad block nor safely retry the write without REQ_NOWAIT, leaving mirrors with divergent data. Rather than continue advertising REQ_NOWAIT support for personalities that cannot implement it correctly, remove it from raid1, raid10 and raid456. Keep REQ_NOWAIT for linear and raid0, which only remap bios to their underlying devices; stacked limits will still clear the feature if any component device lacks REQ_NOWAIT support.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| f51d46d0e7cb5b8494aa534d276a9d8915a2443d | affected | git | ffcc9ea4e4d121c78aef6654a1577aa7d120774d | Unavailable | None listed |
| f51d46d0e7cb5b8494aa534d276a9d8915a2443d | affected | git | 9bb9504e2d8f3d22ef12d51c333dd499f402dc8f | Unavailable | None listed |
| f51d46d0e7cb5b8494aa534d276a9d8915a2443d | affected | git | 3fe5b7c9fb72ccc29bfd0f955b124892af7e3674 | Unavailable | None listed |
| 39db562b3fedb93978a7e42dd216b306740959f8 | affected | git | Unavailable | Unavailable | None listed |
| 5.15.111 | affected | semver | 5.16 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.17 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.17 | Unavailable | None listed |
| 6.18.57 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.6 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |