Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected c7fb19428d67dd0a2a78a4f237af01d39c78dc5a before a7b33671e418fca507feebd1d56e7f4952a4b25c; affected c7fb19428d67dd0a2a78a4f237af01d39c78dc5a before 439a6728ec4641ffad1ca796622c19bc525e570f; affected c7fb19428d67dd0a2a78a4f237af01d39c78dc5a before f3fb54e7a8b4aadcc2836ee463eec8c88709b8aa; affected c7fb19428d67dd0a2a78a4f237af01d39c78dc5a before 50ad880db3013c6fee0ef13781762a39e2e7ef83; affected c7fb19428d67dd0a2a78a4f237af01d39c78dc5a before 97b57f69fee1b61b41acbf37e7720cac9d389fa4; affected c7fb19428d67dd0a2a78a4f237af01d39c78dc5a before c2c185be5c85d37215397c8e8781abf0a69bec1f |
| Linux / Linux | affected 5.19; unaffected 0 before 5.19; unaffected 6.1.167 through 6.1.*; unaffected 6.6.130 through 6.6.*; unaffected 6.12.78 through 6.12.*; unaffected 6.18.19 through 6.18.*; unaffected 6.19.9 through 6.19.*; unaffected 7.0 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/a7b33671e418fca507feebd1d56e7f4952a4b25c
- https://git.kernel.org/stable/c/439a6728ec4641ffad1ca796622c19bc525e570f
- https://git.kernel.org/stable/c/f3fb54e7a8b4aadcc2836ee463eec8c88709b8aa
- https://git.kernel.org/stable/c/50ad880db3013c6fee0ef13781762a39e2e7ef83
- https://git.kernel.org/stable/c/97b57f69fee1b61b41acbf37e7720cac9d389fa4
- https://git.kernel.org/stable/c/c2c185be5c85d37215397c8e8781abf0a69bec1f
ADP enrichment
No English description supplied.
No references supplied.