linux-kernel - [PATCH AUTOSEL 6.6 1/6] qibfs: fix _another

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Message-Id: <20250407181734.3184450-1-sashal@kernel.org>
Date: Mon,  7 Apr 2025 14:17:29 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Al Viro <viro@...iv.linux.org.uk>,
	Sasha Levin <sashal@...nel.org>,
	dennis.dalessandro@...nelisnetworks.com,
	linux-rdma@...r.kernel.org
Subject: [PATCH AUTOSEL 6.6 1/6] qibfs: fix _another_ leak

From: Al Viro <viro@...iv.linux.org.uk>

[ Upstream commit bdb43af4fdb39f844ede401bdb1258f67a580a27 ]

failure to allocate inode => leaked dentry...

this one had been there since the initial merge; to be fair,
if we are that far OOM, the odds of failing at that particular
allocation are low...

Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/infiniband/hw/qib/qib_fs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/infiniband/hw/qib/qib_fs.c b/drivers/infiniband/hw/qib/qib_fs.c
index 11155e0fb8395..35d777976c295 100644
--- a/drivers/infiniband/hw/qib/qib_fs.c
+++ b/drivers/infiniband/hw/qib/qib_fs.c
@@ -55,6 +55,7 @@ static int qibfs_mknod(struct inode *dir, struct dentry *dentry,
 	struct inode *inode = new_inode(dir->i_sb);
 
 	if (!inode) {
+		dput(dentry);
 		error = -EPERM;
 		goto bail;
 	}
-- 
2.39.5