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| author | Miaoqian Lin <linmq006@gmail.com> | 2022-12-05 11:06:42 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-11 15:55:17 +0300 |
| commit | a8f63d747bf7c983882a5ea7456a5f84ad3acad5 (patch) | |
| tree | 500d3f68ea7055ee7da751aab73b37d6ad713b39 /tools | |
| parent | 4a229379a72e04842cec91a802b47c2c68f1cdc9 (diff) | |
| download | linux-a8f63d747bf7c983882a5ea7456a5f84ad3acad5.tar.xz | |
objtool: Fix memory leak in create_static_call_sections()
[ Upstream commit 3da73f102309fe29150e5c35acd20dd82063ff67 ]
strdup() allocates memory for key_name. We need to release the memory in
the following error paths. Add free() to avoid memory leak.
Fixes: 1e7e47883830 ("x86/static_call: Add inline static call implementation for x86-64")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20221205080642.558583-1-linmq006@gmail.com
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/objtool/check.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/objtool/check.c b/tools/objtool/check.c index 0c1b6acad141..730b49e255e4 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -668,6 +668,7 @@ static int create_static_call_sections(struct objtool_file *file) if (strncmp(key_name, STATIC_CALL_TRAMP_PREFIX_STR, STATIC_CALL_TRAMP_PREFIX_LEN)) { WARN("static_call: trampoline name malformed: %s", key_name); + free(key_name); return -1; } tmp = key_name + STATIC_CALL_TRAMP_PREFIX_LEN - STATIC_CALL_KEY_PREFIX_LEN; @@ -677,6 +678,7 @@ static int create_static_call_sections(struct objtool_file *file) if (!key_sym) { if (!opts.module) { WARN("static_call: can't find static_call_key symbol: %s", tmp); + free(key_name); return -1; } |