CVE-2023-52903 io_uring: lock overflowing for IOPOLL

In the Linux kernel, the following vulnerability has been resolved: iouring: lock overflowing for IOPOLL syzbot reports an issue with overflow filling for IOPOLL: WARNING: CPU: 0 PID: 28 at iouring/iouring.c:734 iocqringeventoverflow+0x1c0/0x230 iouring/iouring.c:734 CPU: 0 PID: 28 Comm:...

CVE-2023-52903

CVE-2023-52903 refers to a Linux kernel issue in the io_uring subsystem, specifically a lock overflow in IOPOLL CQ processing. The description shows a syzkaller-triggered overflow path in io_cqring_event_overflow, with call traces through io_req_cqe_overflow, io_fill_cqe_req, and io_do_iopoll, an...