Linux kernel bug fix: bpf: Tighten ptr_to_btf_id checks.
Subsystem: tools (tools/testing/selftests/bpf/progs/btf_type_tag_percpu.c)
Bug type: unknown, severity: low
Files changed: include/linux/bpf.h;include/linux/bpf_verifier.h;kernel/bpf/verifier.c;tools/testing/selftests/bpf/progs/btf_type_tag_percpu.c;tools/testing/selftests/bpf/verifier/map_ptr.c
Introduced by Yonghong Song on 2022-11-20 15:43:37 -0800; fixed by Alexei Starovoitov on 2022-11-30 15:33:48 -0800 (lifetime: 9 days)