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(parent: 04efe59) | patch
libbpf: sanitize VAR to conservative 1-byte INT
authorAndrii Nakryiko <andriin@fb.com>
Fri, 19 Jul 2019 19:46:03 +0000 (12:46 -0700)
committerAlexei Starovoitov <ast@kernel.org>
Fri, 19 Jul 2019 19:48:55 +0000 (12:48 -0700)
commit1d4126c4e1190d2f7d3f388552f9bd17ae0c64fc
tree13ec1c89e1f4d94b40ac626d2eb2be5513d5eae8tree | snapshot
parent04efe5911fb30664a56ec63d272a0f39a71545dbcommit | diff
libbpf: sanitize VAR to conservative 1-byte INT

If VAR in non-sanitized BTF was size less than 4, converting such VAR
into an INT with size=4 will cause BTF validation failure due to
violationg of STRUCT (into which DATASEC was converted) member size.
Fix by conservatively using size=1.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
tools/lib/bpf/libbpf.c diff | blob | history
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