CVE-2024-38544

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix seg fault in rxe_comp_queue_pkt In rxe_comp_queue_pkt() an incoming response packet skb is enqueued to the resp_pkts queue and then a decision is made whether to run the completer task inline or schedule it. Finally the skb is dereferenced to bump a 'hw' performance counter. This is wrong because if the completer task is already running in a separate thread it may have already processed the skb and freed it which can cause a seg fault. This has been observed infrequently in testing at high scale. This patch fixes this by changing the order of enqueuing the packet until after the counter is accessed.

• linux linux kernel (>= 4.12 < 5.4.285) • linux linux kernel (>= 5.5 < 5.10.227) • linux linux kernel (>= 5.11 < 5.15.168) • linux linux kernel (>= 5.16 < 6.1.93) • linux linux kernel (>= 6.2 < 6.6.33) • linux linux kernel (>= 6.7 < 6.8.12) • linux linux kernel (>= 6.9 < 6.9.3)