Linux kernel bug fix: bpf: Make bpf_refcount_acquire fallible for non-owning refs
Subsystem: bpf (kernel/bpf/verifier.c)
Bug type: use-after-free, severity: critical
Keywords: refcount;use after free
Files changed: kernel/bpf/helpers.c;kernel/bpf/verifier.c
Introduced by Dave Marchevsky on 2023-04-15 17:36:50 -0700; fixed by Dave Marchevsky on 2023-06-05 13:17:20 -0700 (lifetime: 50 days)