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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org,
	syzbot+7fe11b49c1cc30e3fce2@syzkaller.appspotmail.com,
	Benjamin Coddington <bcodding@redhat.com>,
	Trond Myklebust <trond.myklebust@hammerspace.com>
Subject: [PATCH 5.2 09/20] NFS: Cleanup if nfs_match_client is interrupted
Date: Fri,  2 Aug 2019 11:40:03 +0200	[thread overview]
Message-ID: <20190802092100.101534861@linuxfoundation.org> (raw)
In-Reply-To: <20190802092055.131876977@linuxfoundation.org>

From: Benjamin Coddington <bcodding@redhat.com>

commit 9f7761cf0409465075dadb875d5d4b8ef2f890c8 upstream.

Don't bail out before cleaning up a new allocation if the wait for
searching for a matching nfs client is interrupted.  Memory leaks.

Reported-by: syzbot+7fe11b49c1cc30e3fce2@syzkaller.appspotmail.com
Fixes: 950a578c6128 ("NFS: make nfs_match_client killable")
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/nfs/client.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -406,10 +406,10 @@ struct nfs_client *nfs_get_client(const
 		clp = nfs_match_client(cl_init);
 		if (clp) {
 			spin_unlock(&nn->nfs_client_lock);
-			if (IS_ERR(clp))
-				return clp;
 			if (new)
 				new->rpc_ops->free_client(new);
+			if (IS_ERR(clp))
+				return clp;
 			return nfs_found_client(cl_init, clp);
 		}
 		if (new) {



  parent reply	other threads:[~2019-08-02  9:58 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-02  9:39 [PATCH 5.2 00/20] 5.2.6-stable review Greg Kroah-Hartman
2019-08-02  9:39 ` [PATCH 5.2 01/20] vsock: correct removal of socket from the list Greg Kroah-Hartman
2019-08-02  9:39 ` [PATCH 5.2 02/20] ISDN: hfcsusb: checking idx of ep configuration Greg Kroah-Hartman
2019-08-02  9:39 ` [PATCH 5.2 03/20] ALSA: usb-audio: Sanity checks for each pipe and EP types Greg Kroah-Hartman
2019-08-02 13:48   ` Sasha Levin
2019-08-02 15:51     ` Greg Kroah-Hartman
2019-08-07  2:38       ` Sasha Levin
2019-08-02  9:39 ` [PATCH 5.2 04/20] bpf: fix NULL deref in btf_type_is_resolve_source_only Greg Kroah-Hartman
2019-08-02  9:39 ` [PATCH 5.2 05/20] media: au0828: fix null dereference in error path Greg Kroah-Hartman
2019-08-02  9:40 ` [PATCH 5.2 06/20] ath10k: Change the warning message string Greg Kroah-Hartman
2019-08-02  9:40 ` [PATCH 5.2 07/20] media: cpia2_usb: first wake up, then free in disconnect Greg Kroah-Hartman
2019-08-02  9:40 ` [PATCH 5.2 08/20] media: pvrusb2: use a different format for warnings Greg Kroah-Hartman
2019-08-02  9:40 ` Greg Kroah-Hartman [this message]
2019-08-02  9:40 ` [PATCH 5.2 10/20] media: radio-raremono: change devm_k*alloc to k*alloc Greg Kroah-Hartman
2019-08-02 10:04   ` Joe Perches
2019-08-06  5:34     ` Luke Nowakowski-Krijger
2019-08-02  9:40 ` [PATCH 5.2 11/20] xfrm: policy: fix bydst hlist corruption on hash rebuild Greg Kroah-Hartman
2019-08-02  9:40 ` [PATCH 5.2 12/20] nvme: fix multipath crash when ANA is deactivated Greg Kroah-Hartman
2019-08-02  9:40 ` [PATCH 5.2 13/20] Bluetooth: hci_uart: check for missing tty operations Greg Kroah-Hartman
2019-08-02  9:40 ` [PATCH 5.2 14/20] sched/fair: Dont free p->numa_faults with concurrent readers Greg Kroah-Hartman
2019-08-02  9:40 ` [PATCH 5.2 15/20] sched/fair: Use RCU accessors consistently for ->numa_group Greg Kroah-Hartman
2019-08-02  9:40 ` [PATCH 5.2 16/20] /proc/<pid>/cmdline: remove all the special cases Greg Kroah-Hartman
2019-08-02  9:40 ` [PATCH 5.2 17/20] /proc/<pid>/cmdline: add back the setproctitle() special case Greg Kroah-Hartman
2019-08-02  9:40 ` [PATCH 5.2 18/20] drivers/pps/pps.c: clear offset flags in PPS_SETPARAMS ioctl Greg Kroah-Hartman
2019-08-02  9:40 ` [PATCH 5.2 19/20] Fix allyesconfig output Greg Kroah-Hartman
2019-08-02  9:40 ` [PATCH 5.2 20/20] ceph: hold i_ceph_lock when removing caps for freeing inode Greg Kroah-Hartman
2019-08-02 23:25 ` [PATCH 5.2 00/20] 5.2.6-stable review shuah
2019-08-03  7:08   ` Greg Kroah-Hartman
2019-08-03  5:50 ` Naresh Kamboju
2019-08-03  7:11   ` Greg Kroah-Hartman
2019-08-03 16:00 ` Guenter Roeck
2019-08-04  7:15   ` Greg Kroah-Hartman

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