From: Ding Xiang <dingxiang@cmss.chinamobile.com>
Date: Tue, 15 Aug 2023 07:49:15 +0000 (+0800)
Subject: kselftest/arm64: fix a memleak in zt_regs_run()
X-Git-Tag: v6.6-rc1~184^2^2~6
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=46862da15e37efedb7d2d21e167f506c0b533772;p=thirdparty%2Fkernel%2Flinux.git

kselftest/arm64: fix a memleak in zt_regs_run()

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

Signed-off-by: Ding Xiang <dingxiang@cmss.chinamobile.com>
Link: https://lore.kernel.org/r/20230815074915.245528-1-dingxiang@cmss.chinamobile.com
Signed-off-by: Will Deacon <will@kernel.org>
---

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;
 	}