[PATCH AUTOSEL 6.4 08/13] kselftest/arm64: fix a memleak in zt_regs_run()

[Sasha Levin]

From: Ding Xiang <dingxiang@xxxxxxxxxxxxxxxxxxxx>

[ Upstream commit 46862da15e37efedb7d2d21e167f506c0b533772 ]

If memcmp() does not return 0, "zeros" need to be freed to prevent memleak

Signed-off-by: Ding Xiang <dingxiang@xxxxxxxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20230815074915.245528-1-dingxiang@xxxxxxxxxxxxxxxxxxxx
Signed-off-by: Will Deacon <will@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 tools/testing/selftests/arm64/signal/testcases/zt_regs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/arm64/signal/testcases/zt_regs.c b/tools/testing/selftests/arm64/signal/testcases/zt_regs.c
index e1eb4d5c027ab..2e384d731618b 100644
--- a/tools/testing/selftests/arm64/signal/testcases/zt_regs.c
+++ b/tools/testing/selftests/arm64/signal/testcases/zt_regs.c
@@ -65,6 +65,7 @@ int zt_regs_run(struct tdescr *td, siginfo_t *si, ucontext_t *uc)
 	if (memcmp(zeros, (char *)zt + ZT_SIG_REGS_OFFSET,
 		   ZT_SIG_REGS_SIZE(zt->nregs)) != 0) {
 		fprintf(stderr, "ZT data invalid\n");
+		free(zeros);
 		return 1;
 	}
 
-- 
2.40.1