linux-kernel - [PATCH AUTOSEL 6.11 147/244] selftests/bpf: fix uprobe.path leak in bpf

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Message-ID: <20240925113641.1297102-147-sashal@kernel.org>
Date: Wed, 25 Sep 2024 07:26:08 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Jiri Olsa <olsajiri@...il.com>,
	Oleg Nesterov <oleg@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Sasha Levin <sashal@...nel.org>,
	ast@...nel.org,
	daniel@...earbox.net,
	andrii@...nel.org,
	eddyz87@...il.com,
	shuah@...nel.org,
	mcoquelin.stm32@...il.com,
	alexandre.torgue@...s.st.com,
	thinker.li@...il.com,
	martin.lau@...nel.org,
	geliang@...nel.org,
	bentiss@...nel.org,
	jrife@...gle.com,
	alan.maguire@...cle.com,
	dxu@...uu.xyz,
	davemarchevsky@...com,
	bpf@...r.kernel.org,
	linux-kselftest@...r.kernel.org,
	linux-stm32@...md-mailman.stormreply.com,
	linux-arm-kernel@...ts.infradead.org
Subject: [PATCH AUTOSEL 6.11 147/244] selftests/bpf: fix uprobe.path leak in bpf_testmod

From: Jiri Olsa <olsajiri@...il.com>

[ Upstream commit db61e6a4eee5a7884b2cafeaf407895f253bbaa7 ]

testmod_unregister_uprobe() forgets to path_put(&uprobe.path).

Signed-off-by: Jiri Olsa <olsajiri@...il.com>
Signed-off-by: Oleg Nesterov <oleg@...hat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Link: https://lore.kernel.org/r/20240801132724.GA8791@redhat.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c b/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c
index fd28c1157bd3d..72f565af4f829 100644
--- a/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c
+++ b/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c
@@ -477,6 +477,7 @@ static void testmod_unregister_uprobe(void)
 	if (uprobe.offset) {
 		uprobe_unregister(d_real_inode(uprobe.path.dentry),
 				  uprobe.offset, &uprobe.consumer);
+		path_put(&uprobe.path);
 		uprobe.offset = 0;
 	}
 
-- 
2.43.0