CVE-2021-47126

A vulnerability was found in the Linux kernel, where an IPv6 implementation allowed a slab-out-of-bounds read in the fib6_nh_flush_exceptions function. This issue occurred when trying to free a non-allocated fib6_nh pointer, potentially leading to memory issues.

Mitigation

Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.