In the Linux kernel, the following vulnerability has been resolved:

IORING_OP_READ did not correctly consume the provided buffer list when
read i/o returned < 0 (except for -EAGAIN and -EIOCBQUEUED return).
This can lead to a potential use-after-free when the completion via
io_rw_done runs at separate context.

References

• https://nvd.nist.gov/vuln/detail/CVE-2023-52926
• https://git.kernel.org/stable/c/6c27fc6a783c8a77c756dd5461b15e465020d075
• https://git.kernel.org/stable/c/72060434a14caea20925e492310d6e680e3f9007
• https://git.kernel.org/stable/c/a08d195b586a217d76b42062f88f375a3eedda4d