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| author |   Andrii Nakryiko <andriin@fb.com> | 2019-11-06 18:08:52 -0800 |
|---|---|---|
| committer |   Daniel Borkmann <daniel@iogearbox.net> | 2019-11-07 16:20:37 +0100 |
| commit | 4ee1135615713387b869dfd099ffdf8656be6784 (patch) | |
| tree | a93f0c5cd0eeb78b81e4b3281841a3fd78bfe6dd | |
| parent | libbpf: Fix memory leak/double free issue (diff) | |
| download | linux-dev-4ee1135615713387b869dfd099ffdf8656be6784.tar.xz linux-dev-4ee1135615713387b869dfd099ffdf8656be6784.zip | |
libbpf: Fix potential overflow issue
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
| -rw-r--r-- | tools/lib/bpf/bpf.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c index ca0d635b1d5e..b3e3e99a0f28 100644 --- a/tools/lib/bpf/bpf.c +++ b/tools/lib/bpf/bpf.c @@ -189,7 +189,7 @@ static void * alloc_zero_tailing_info(const void *orecord, __u32 cnt, __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; int i; |