On Fri, Oct 7, 2022 at 10:48 AM Shung-Hsi Yu <shung-hsi.yu@xxxxxxxx> wrote: > > Hi, this patch set fixes several fuzzer-reported issues of libbpf when > dealing with (malformed) BPF object file. > > The 1st patch fix out-of-bound heap write reported by oss-fuzz > (currently incorrectly marked as fixed). The 2nd and 3rd patch fix > null-pointer dereference found by locally-run fuzzer. > > Suggest at least taking the 1st fix in this patch set or apply an > alternative fix for it (see the extra note after its commit message for > detail). > > Shung-Hsi Yu (3): > libbpf: use elf_getshdrnum() instead of e_shnum > libbpf: fix null-pointer dereference in find_prog_by_sec_insn() > libbpf: deal with section with no data gracefully > > tools/lib/bpf/libbpf.c | 19 ++++++++++++++++--- > 1 file changed, 16 insertions(+), 3 deletions(-) > > > base-commit: 0326074ff4652329f2a1a9c8685104576bd8d131 > -- > 2.37.3 > LGTM, but see my comment on patch #1. If that suggestion makes sense and will work, please send v2. But base it on top of bpf-next, I don't think there is any need to base this on bpf tree. Thanks.
