CVE-2025-21832
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
block: don't revert iter for -EIOCBQUEUED
In the Linux kernel, the following vulnerability has been resolved: block: don't revert iter for -EIOCBQUEUED blkdev_read_iter() has a few odd checks, like gating the position and count adjustment on whether or not the result is bigger-than-or-equal to zero (where bigger than makes more sense), and not checking the return value of blkdev_direct_IO() before doing an iov_iter_revert(). The latter can lead to attempting to revert with a negative value, which when passed to iov_iter_revert() as an unsigned value will lead to throwing a WARN_ON() because unroll is bigger than MAX_RW_COUNT. Be sane and don't revert for -EIOCBQUEUED, like what is done in other spots.
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) |
|---|---|---|---|---|---|
| 3e1f941dd9f33776b3df4e30f741fe445ff773f3 | affected | git | 6c26619effb1b4cb7d20b4e666ab8f71f6a53ccb | Unavailable | None listed |
| 3e1f941dd9f33776b3df4e30f741fe445ff773f3 | affected | git | 84671b0630ccb46ae9f1f99a45c7d63ffcd6a474 | Unavailable | None listed |
| 3e1f941dd9f33776b3df4e30f741fe445ff773f3 | affected | git | 68f16d3034a06661245ecd22f0d586a8b4e7c473 | Unavailable | None listed |
| 3e1f941dd9f33776b3df4e30f741fe445ff773f3 | affected | git | a58f136bad29f9ae721a29d98c042fddbee22f77 | Unavailable | None listed |
| 3e1f941dd9f33776b3df4e30f741fe445ff773f3 | affected | git | b13ee668e8280ca5b07f8ce2846b9957a8a10853 | 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 |
| 6.1.129 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.78 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.14 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.13.3 | unaffected | semver | Unavailable | 6.13.* | None listed |
| 6.14 | unaffected | original_commit_for_fix | Unavailable | * | None listed |