description: A use-after-free flaw was found in the Linux kernel’s io_uring subsystem in the way a user sets up a ring with IORING_SETUP_IOPOLL with more than one task completing submissions on this ring. This flaw allows a local user to crash or escalate their privileges on the system.
problem types: CWE-843
affected:
{
product: kernel
vendor: n/a
versions:
status: affected, version: kernel v5.10 and v5.11
}