CVE-2021-47040
Vulnerability from cvelistv5
Published
2024-02-28 08:13
Modified
2024-12-19 07:34
Severity ?
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/38134ada0ceea3e848fe993263c0ff6207fd46e7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/51bf90901952aaac564bbdb36b2b503050c53dd9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/84b8c266c4bfe9ed5128e13253c388deb74b1b03
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cbbc13b115b8f18e0a714d89f87fbdc499acfe2d
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/38134ada0ceea3e848fe993263c0ff6207fd46e7
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/51bf90901952aaac564bbdb36b2b503050c53dd9
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/84b8c266c4bfe9ed5128e13253c388deb74b1b03
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/cbbc13b115b8f18e0a714d89f87fbdc499acfe2d
Impacted products
Vendor Product Version
Linux Linux Version: 5.8
Show details on NVD website

To clipboard 

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