CVE-2022-49622

CVE-2022-49622 (Linux kernel) describes a use-after-free risk in nf_tables when verdict is NF_STOLEN in netfilter, where skb freeing may have occurred. The fix prevents illegal skb access by: (1) caching skb->nf_trace in the trace state and refreshing it when verdict != STOLEN; (2) skipping sk...