libbpf: Improve ELF relo sanitization

Browse source

Add few sanity checks for relocations to prevent div-by-zero and
out-of-bounds array accesses in libbpf.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20211103173213.1376990-6-andrii@kernel.org

...

This commit is contained in:

Andrii Nakryiko 2021-11-03 10:32:13 -07:00 • committed by Alexei Starovoitov

parent 0d6988e16a

commit b7332d2820

1 changed files with 19 additions and 5 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

24

tools/lib/bpf/libbpf.c

View file