Linux kernel bug fix: bpf: Track subprog poke descriptors correctly and fix use-after-free
Subsystem: bpf (arch/x86/net/bpf_jit_comp.c)
Bug type: use-after-free, severity: high
Keywords: use after free;double free;reference count
Files changed: arch/x86/net/bpf_jit_comp.c;include/linux/bpf.h;kernel/bpf/core.c;kernel/bpf/verifier.c
Introduced by Maciej Fijalkowski on 2020-09-17 12:59:31 -0700; fixed by John Fastabend on 2021-07-09 12:08:27 +0200 (lifetime: 294 days)