Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: io_uring: fix overflows checks in provide buffers Colin reported before possible overflow and sign extension problems in io_provide_buffers_prep(). As Linus pointed out previous attempt did nothing useful, see d81269fecb8ce ("io_uring: fix provide_buffers sign extension"). Do that with help of check_<op>_overflow helpers. And fix struct io_provide_buf::len type, as it doesn't make much sense to keep it signed.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected efe68c1ca8f49e8c06afd74b699411bfbb8ba1ff before cbbc13b115b8f18e0a714d89f87fbdc499acfe2d; affected efe68c1ca8f49e8c06afd74b699411bfbb8ba1ff before 51bf90901952aaac564bbdb36b2b503050c53dd9; affected efe68c1ca8f49e8c06afd74b699411bfbb8ba1ff before 84b8c266c4bfe9ed5128e13253c388deb74b1b03; affected efe68c1ca8f49e8c06afd74b699411bfbb8ba1ff before 38134ada0ceea3e848fe993263c0ff6207fd46e7 |
| Linux / Linux | affected 5.8; unaffected 0 before 5.8; unaffected 5.10.37 through 5.10.*; unaffected 5.11.21 through 5.11.*; unaffected 5.12.4 through 5.12.*; unaffected 5.13 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/cbbc13b115b8f18e0a714d89f87fbdc499acfe2d
- https://git.kernel.org/stable/c/51bf90901952aaac564bbdb36b2b503050c53dd9
- https://git.kernel.org/stable/c/84b8c266c4bfe9ed5128e13253c388deb74b1b03
- https://git.kernel.org/stable/c/38134ada0ceea3e848fe993263c0ff6207fd46e7
ADP enrichment
No English description supplied.
No English description supplied.
No references supplied.