CVE-2026-43366
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)
io_uring/kbuf: check if target buffer list is still legacy on recycle
In the Linux kernel, the following vulnerability has been resolved: io_uring/kbuf: check if target buffer list is still legacy on recycle There's a gap between when the buffer was grabbed and when it potentially gets recycled, where if the list is empty, someone could've upgraded it to a ring provided type. This can happen if the request is forced via io-wq. The legacy recycling is missing checking if the buffer_list still exists, and if it's of the correct type. Add those checks.
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) |
|---|---|---|---|---|---|
| c7fb19428d67dd0a2a78a4f237af01d39c78dc5a | affected | git | a7b33671e418fca507feebd1d56e7f4952a4b25c | Unavailable | None listed |
| c7fb19428d67dd0a2a78a4f237af01d39c78dc5a | affected | git | 439a6728ec4641ffad1ca796622c19bc525e570f | Unavailable | None listed |
| c7fb19428d67dd0a2a78a4f237af01d39c78dc5a | affected | git | f3fb54e7a8b4aadcc2836ee463eec8c88709b8aa | Unavailable | None listed |
| c7fb19428d67dd0a2a78a4f237af01d39c78dc5a | affected | git | 50ad880db3013c6fee0ef13781762a39e2e7ef83 | Unavailable | None listed |
| c7fb19428d67dd0a2a78a4f237af01d39c78dc5a | affected | git | 97b57f69fee1b61b41acbf37e7720cac9d389fa4 | Unavailable | None listed |
| c7fb19428d67dd0a2a78a4f237af01d39c78dc5a | affected | git | c2c185be5c85d37215397c8e8781abf0a69bec1f | 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) |
|---|---|---|---|---|---|
| 5.19 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.19 | Unavailable | None listed |
| 6.1.167 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.130 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.78 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.19 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.9 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |