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libbpf: Fix potential overflow issue

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Fix a potential overflow issue found by LGTM analysis, based on Github libbpf
source code.

Fixes: 3d65014146c6 ("bpf: libbpf: Add btf_line_info support to libbpf")
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20191107020855.3834758-3-andriin@fb.com
This commit is contained in:
Andrii Nakryiko
2019-11-06 18:08:52 -08:00
committed by Andrii Nakryiko
parent 330f4683e2
commit 1a828b3d58
1 changed files with 1 additions and 1 deletions
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src/bpf.c
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@@ -189,7 +189,7 @@ static void *
alloc_zero_tailing_info(const void *orecord, __u32 cnt, alloc_zero_tailing_info(const void *orecord, __u32 cnt,
__u32 actual_rec_size, __u32 expected_rec_size) __u32 actual_rec_size, __u32 expected_rec_size)
{ {
__u64 info_len = actual_rec_size * cnt; __u64 info_len = (__u64)actual_rec_size * cnt;
void *info, *nrecord; void *info, *nrecord;
int i; int i;