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libbpf: Make btf__resolve_size logic always check size error condition
authorAndrii Nakryiko <andriin@fb.com>
Thu, 7 Nov 2019 02:08:54 +0000 (18:08 -0800)
committerDaniel Borkmann <daniel@iogearbox.net>
Thu, 7 Nov 2019 15:20:38 +0000 (16:20 +0100)
commit994021a7e08477f7e51285920aac99fc967fae8a
treeb60c21f9c262698672f83d22dc89a66c98425d2btree | snapshot
parentdd3ab126379ec040b3edab8559f9c72de6ef9d29commit | diff
libbpf: Make btf__resolve_size logic always check size error condition

Perform size check always in btf__resolve_size. Makes the logic a bit more
robust against corrupted BTF and silences LGTM/Coverity complaining about
always true (size < 0) check.

Fixes: 69eaab04c675 ("btf: extract BTF type size calculation")
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20191107020855.3834758-5-andriin@fb.com
tools/lib/bpf/btf.c diff | blob | history
Domain: System / Kernel;