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
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@ -2826,10 +2826,8 @@ struct btf_ext *btf_ext__new(const __u8 *data, __u32 size)
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if (err)
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if (err)
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goto done;
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goto done;
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if (btf_ext->hdr->hdr_len < offsetofend(struct btf_ext_header, core_relo_len)) {
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if (btf_ext->hdr->hdr_len < offsetofend(struct btf_ext_header, core_relo_len))
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err = -EINVAL;
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goto done; /* skip core relos parsing */
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goto done;
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}
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err = btf_ext_setup_core_relos(btf_ext);
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err = btf_ext_setup_core_relos(btf_ext);
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if (err)
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if (err)
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