CVE-2026-43366
Description
AI Translation Available
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.
https://git.kernel.org/stable/c/439a6728ec4641ffad1ca796622c19bc525e570f
https://git.kernel.org/stable/c/50ad880db3013c6fee0ef13781762a39e2e7ef83
https://git.kernel.org/stable/c/97b57f69fee1b61b41acbf37e7720cac9d389fa4
https://git.kernel.org/stable/c/a7b33671e418fca507feebd1d56e7f4952a4b25c
https://git.kernel.org/stable/c/c2c185be5c85d37215397c8e8781abf0a69bec1f
https://git.kernel.org/stable/c/f3fb54e7a8b4aadcc2836ee463eec8c88709b8aa