bpf: Fix bpf_attr.attach_btf_id check

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Only raw_tracepoint program type can have bpf_attr.attach_btf_id >= 0.
Make sure to reject other program types that accidentally set it to non-zero.

Fixes: ccfe29eb29 ("bpf: Add attach_btf_id attribute to program load")
Reported-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20191018060933.2950231-1-ast@kernel.org

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Alexei Starovoitov 2019-10-17 23:09:33 -07:00 • committed by Daniel Borkmann

parent 47a92ae074

commit c108e3c1bd

1 changed files with 11 additions and 6 deletions

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kernel/bpf/syscall.c

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