linux-kernel - [PATCH 4.4 179/188] nfs: fix acl memory leak of posix_acl

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Mon, 19 Jul 2021 16:52:43 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Trond Myklebust <trond.myklebust@...merspace.com>,
        Anna Schumaker <anna.schumaker@...app.com>,
        Christoph Hellwig <hch@...radead.org>,
        Joseph Qi <joseph.qi@...ux.alibaba.com>,
        Gao Xiang <hsiangkao@...ux.alibaba.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.4 179/188] nfs: fix acl memory leak of posix_acl_create()

From: Gao Xiang <hsiangkao@...ux.alibaba.com>

[ Upstream commit 1fcb6fcd74a222d9ead54d405842fc763bb86262 ]

When looking into another nfs xfstests report, I found acl and
default_acl in nfs3_proc_create() and nfs3_proc_mknod() error
paths are possibly leaked. Fix them in advance.

Fixes: 013cdf1088d7 ("nfs: use generic posix ACL infrastructure for v3 Posix ACLs")
Cc: Trond Myklebust <trond.myklebust@...merspace.com>
Cc: Anna Schumaker <anna.schumaker@...app.com>
Cc: Christoph Hellwig <hch@...radead.org>
Cc: Joseph Qi <joseph.qi@...ux.alibaba.com>
Signed-off-by: Gao Xiang <hsiangkao@...ux.alibaba.com>
Signed-off-by: Trond Myklebust <trond.myklebust@...merspace.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 fs/nfs/nfs3proc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index cb28cceefebe..9f365b004453 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -363,7 +363,7 @@ nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
 				break;
 
 			case NFS3_CREATE_UNCHECKED:
-				goto out;
+				goto out_release_acls;
 		}
 		nfs_fattr_init(data->res.dir_attr);
 		nfs_fattr_init(data->res.fattr);
@@ -708,7 +708,7 @@ nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
 		break;
 	default:
 		status = -EINVAL;
-		goto out;
+		goto out_release_acls;
 	}
 
 	status = nfs3_do_create(dir, dentry, data);
-- 
2.30.2