An out-of-bounds read flaw in the Linux Kernel found in io_uring module. The calling path is: io_issue_sqe -> io_read -> iov_iter_revert and finally cause the system to crash. Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=89c2b3b74918200e46699338d7bcc19b1ea12110