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bpftool: Fix memory leak in do_build_table_cb

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[ Upstream commit fa55ef14ef ]

strdup() allocates memory for path. We need to release the memory in the
following error path. Add free() to avoid memory leak.

Fixes: 8f184732b6 ("bpftool: Switch to libbpf's hashmap for pinned paths of BPF objects")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20221206071906.806384-1-linmq006@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Miaoqian Lin
2022-12-06 11:19:06 +04:00
committed by Greg Kroah-Hartman
parent adebac5995
commit 12e6772017
1 changed files with 1 additions and 0 deletions
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tools/bpf/bpftool/common.c
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@@ -499,6 +499,7 @@ static int do_build_table_cb(const char *fpath, const struct stat *sb,
if (err) { if (err) {
p_err("failed to append entry to hashmap for ID %u, path '%s': %s", p_err("failed to append entry to hashmap for ID %u, path '%s': %s",
pinned_info.id, path, strerror(errno)); pinned_info.id, path, strerror(errno));
free(path);
goto out_close; goto out_close;
} }