OSV-2023-877 Heap-buffer-overflow in btf_ensure_modifiable

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=62465 Crash type: Heap-buffer-overflow READ 4 Crash state: btfensuremodifiable btfaddvar bpfobjectcollectexterns...

libbpf:bpf-object-fuzzer: Heap-buffer-overflow in btf_ensure_modifiable

Project: https://github.com/libbpf/libbpf.git Detailed Report: https://oss-fuzz.com/testcase?key=6336442949042176 Project: libbpf Fuzzing Engine: libFuzzer Fuzz Target: bpf-object-fuzzer Job Type: libfuzzerasanlibbpf Platform Id: linux Crash Type: Heap-buffer-overflow READ 4 Crash Address:...