diff options
| author | Yuntao Wang <ytcoode@gmail.com> | 2022-04-04 03:53:20 +0300 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2022-04-04 05:56:01 +0300 |
| commit | e93f39998d8f8ed456dfbb4ca68f9a159906cc6f (patch) | |
| tree | 2d6f3af729a40046500f17db7d3a589331d241aa /tools/lib/bpf/btf.c | |
| parent | 88d01a57113a361c1e62abaeed0563745d637888 (diff) | |
| download | linux-e93f39998d8f8ed456dfbb4ca68f9a159906cc6f.tar.xz | |
libbpf: Don't return -EINVAL if hdr_len < offsetofend(core_relo_len)
Since core relos is an optional part of the .BTF.ext ELF section, we should
skip parsing it instead of returning -EINVAL if header size is less than
offsetofend(struct btf_ext_header, core_relo_len).
Signed-off-by: Yuntao Wang <ytcoode@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220404005320.1723055-1-ytcoode@gmail.com
Diffstat (limited to 'tools/lib/bpf/btf.c')
| -rw-r--r-- | tools/lib/bpf/btf.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/tools/lib/bpf/btf.c b/tools/lib/bpf/btf.c index 1383e26c5d1f..d124e9e533f0 100644 --- a/tools/lib/bpf/btf.c +++ b/tools/lib/bpf/btf.c @@ -2826,10 +2826,8 @@ struct btf_ext *btf_ext__new(const __u8 *data, __u32 size) if (err) goto done; - if (btf_ext->hdr->hdr_len < offsetofend(struct btf_ext_header, core_relo_len)) { - err = -EINVAL; - goto done; - } + if (btf_ext->hdr->hdr_len < offsetofend(struct btf_ext_header, core_relo_len)) + goto done; /* skip core relos parsing */ err = btf_ext_setup_core_relos(btf_ext); if (err) |