An issue was discovered in the Linux kernel. The prb_calc_retire_blk_tmo() function in net/packet/af_packet.c can result in a denial of service (CPU consumption and soft lockup) in a certain failure case involving TPACKET_V3.
This issue is rated as having Moderate impact because of the preconditions needed to trigger the error code path and privileges required (CAP_NET_RAW).
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Created kernel tracking bugs for this issue:
Affects: fedora-all [bug 1846463]
This issue was fixed for Fedora with the 5.4.7 stable kernel updates.