From: Miaoqian Lin linmq006@gmail.com
[ 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 --- tools/objtool/check.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/tools/objtool/check.c b/tools/objtool/check.c index b1a5f658673f0..ea1e7cdeb1b34 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -688,6 +688,7 @@ 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; @@ -697,6 +698,7 @@ 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; }