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libbpf: Use strlcpy() in path resolution fallback logic

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Coverity static analyzer complains that strcpy() can cause buffer
overflow. Use libbpf_strlcpy() instead to be 100% sure this doesn't
happen.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20220407230446.3980075-1-andrii@kernel.org
This commit is contained in:
Andrii Nakryiko 2022-04-07 16:04:45 -07:00 committed by Alexei Starovoitov
parent 700a6ef1fa
commit 3c0dfe6e4c
1 changed files with 1 additions and 1 deletions
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2
tools/lib/bpf/usdt.c
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@ -456,7 +456,7 @@ static int parse_lib_segs(int pid, const char *lib_path, struct elf_seg **segs,
if (!realpath(lib_path, path)) {
pr_warn("usdt: failed to get absolute path of '%s' (err %d), using path as is...\n",
lib_path, -errno);
strcpy(path, lib_path);
libbpf_strlcpy(path, lib_path, sizeof(path));
}
proceed: