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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,
	Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>,
	syzbot <syzbot+bf89c128e05dd6c62523@syzkaller.appspotmail.com>,
	Jan Kara <jack@suse.cz>, Jens Axboe <axboe@kernel.dk>
Subject: [PATCH 4.19 81/99] block/loop: Use global lock for ioctl() operation.
Date: Mon, 21 Jan 2019 14:49:13 +0100	[thread overview]
Message-ID: <20190121134917.176870782@linuxfoundation.org> (raw)
In-Reply-To: <20190121134913.924726465@linuxfoundation.org>

4.19-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>

commit 310ca162d779efee8a2dc3731439680f3e9c1e86 upstream.

syzbot is reporting NULL pointer dereference [1] which is caused by
race condition between ioctl(loop_fd, LOOP_CLR_FD, 0) versus
ioctl(other_loop_fd, LOOP_SET_FD, loop_fd) due to traversing other
loop devices at loop_validate_file() without holding corresponding
lo->lo_ctl_mutex locks.

Since ioctl() request on loop devices is not frequent operation, we don't
need fine grained locking. Let's use global lock in order to allow safe
traversal at loop_validate_file().

Note that syzbot is also reporting circular locking dependency between
bdev->bd_mutex and lo->lo_ctl_mutex [2] which is caused by calling
blkdev_reread_part() with lock held. This patch does not address it.

[1] https://syzkaller.appspot.com/bug?id=f3cfe26e785d85f9ee259f385515291d21bd80a3
[2] https://syzkaller.appspot.com/bug?id=bf154052f0eea4bc7712499e4569505907d15889

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reported-by: syzbot <syzbot+bf89c128e05dd6c62523@syzkaller.appspotmail.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/block/loop.c |   58 +++++++++++++++++++++++++--------------------------
 drivers/block/loop.h |    1 
 2 files changed, 29 insertions(+), 30 deletions(-)

--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -84,6 +84,7 @@
 
 static DEFINE_IDR(loop_index_idr);
 static DEFINE_MUTEX(loop_index_mutex);
+static DEFINE_MUTEX(loop_ctl_mutex);
 
 static int max_part;
 static int part_shift;
@@ -1047,7 +1048,7 @@ static int loop_clr_fd(struct loop_devic
 	 */
 	if (atomic_read(&lo->lo_refcnt) > 1) {
 		lo->lo_flags |= LO_FLAGS_AUTOCLEAR;
-		mutex_unlock(&lo->lo_ctl_mutex);
+		mutex_unlock(&loop_ctl_mutex);
 		return 0;
 	}
 
@@ -1100,12 +1101,12 @@ static int loop_clr_fd(struct loop_devic
 	if (!part_shift)
 		lo->lo_disk->flags |= GENHD_FL_NO_PART_SCAN;
 	loop_unprepare_queue(lo);
-	mutex_unlock(&lo->lo_ctl_mutex);
+	mutex_unlock(&loop_ctl_mutex);
 	/*
-	 * Need not hold lo_ctl_mutex to fput backing file.
-	 * Calling fput holding lo_ctl_mutex triggers a circular
+	 * Need not hold loop_ctl_mutex to fput backing file.
+	 * Calling fput holding loop_ctl_mutex triggers a circular
 	 * lock dependency possibility warning as fput can take
-	 * bd_mutex which is usually taken before lo_ctl_mutex.
+	 * bd_mutex which is usually taken before loop_ctl_mutex.
 	 */
 	fput(filp);
 	return 0;
@@ -1210,7 +1211,7 @@ loop_get_status(struct loop_device *lo,
 	int ret;
 
 	if (lo->lo_state != Lo_bound) {
-		mutex_unlock(&lo->lo_ctl_mutex);
+		mutex_unlock(&loop_ctl_mutex);
 		return -ENXIO;
 	}
 
@@ -1229,10 +1230,10 @@ loop_get_status(struct loop_device *lo,
 		       lo->lo_encrypt_key_size);
 	}
 
-	/* Drop lo_ctl_mutex while we call into the filesystem. */
+	/* Drop loop_ctl_mutex while we call into the filesystem. */
 	path = lo->lo_backing_file->f_path;
 	path_get(&path);
-	mutex_unlock(&lo->lo_ctl_mutex);
+	mutex_unlock(&loop_ctl_mutex);
 	ret = vfs_getattr(&path, &stat, STATX_INO, AT_STATX_SYNC_AS_STAT);
 	if (!ret) {
 		info->lo_device = huge_encode_dev(stat.dev);
@@ -1324,7 +1325,7 @@ loop_get_status_old(struct loop_device *
 	int err;
 
 	if (!arg) {
-		mutex_unlock(&lo->lo_ctl_mutex);
+		mutex_unlock(&loop_ctl_mutex);
 		return -EINVAL;
 	}
 	err = loop_get_status(lo, &info64);
@@ -1342,7 +1343,7 @@ loop_get_status64(struct loop_device *lo
 	int err;
 
 	if (!arg) {
-		mutex_unlock(&lo->lo_ctl_mutex);
+		mutex_unlock(&loop_ctl_mutex);
 		return -EINVAL;
 	}
 	err = loop_get_status(lo, &info64);
@@ -1400,7 +1401,7 @@ static int lo_ioctl(struct block_device
 	struct loop_device *lo = bdev->bd_disk->private_data;
 	int err;
 
-	err = mutex_lock_killable_nested(&lo->lo_ctl_mutex, 1);
+	err = mutex_lock_killable_nested(&loop_ctl_mutex, 1);
 	if (err)
 		goto out_unlocked;
 
@@ -1412,7 +1413,7 @@ static int lo_ioctl(struct block_device
 		err = loop_change_fd(lo, bdev, arg);
 		break;
 	case LOOP_CLR_FD:
-		/* loop_clr_fd would have unlocked lo_ctl_mutex on success */
+		/* loop_clr_fd would have unlocked loop_ctl_mutex on success */
 		err = loop_clr_fd(lo);
 		if (!err)
 			goto out_unlocked;
@@ -1425,7 +1426,7 @@ static int lo_ioctl(struct block_device
 		break;
 	case LOOP_GET_STATUS:
 		err = loop_get_status_old(lo, (struct loop_info __user *) arg);
-		/* loop_get_status() unlocks lo_ctl_mutex */
+		/* loop_get_status() unlocks loop_ctl_mutex */
 		goto out_unlocked;
 	case LOOP_SET_STATUS64:
 		err = -EPERM;
@@ -1435,7 +1436,7 @@ static int lo_ioctl(struct block_device
 		break;
 	case LOOP_GET_STATUS64:
 		err = loop_get_status64(lo, (struct loop_info64 __user *) arg);
-		/* loop_get_status() unlocks lo_ctl_mutex */
+		/* loop_get_status() unlocks loop_ctl_mutex */
 		goto out_unlocked;
 	case LOOP_SET_CAPACITY:
 		err = -EPERM;
@@ -1455,7 +1456,7 @@ static int lo_ioctl(struct block_device
 	default:
 		err = lo->ioctl ? lo->ioctl(lo, cmd, arg) : -EINVAL;
 	}
-	mutex_unlock(&lo->lo_ctl_mutex);
+	mutex_unlock(&loop_ctl_mutex);
 
 out_unlocked:
 	return err;
@@ -1572,7 +1573,7 @@ loop_get_status_compat(struct loop_devic
 	int err;
 
 	if (!arg) {
-		mutex_unlock(&lo->lo_ctl_mutex);
+		mutex_unlock(&loop_ctl_mutex);
 		return -EINVAL;
 	}
 	err = loop_get_status(lo, &info64);
@@ -1589,19 +1590,19 @@ static int lo_compat_ioctl(struct block_
 
 	switch(cmd) {
 	case LOOP_SET_STATUS:
-		err = mutex_lock_killable(&lo->lo_ctl_mutex);
+		err = mutex_lock_killable(&loop_ctl_mutex);
 		if (!err) {
 			err = loop_set_status_compat(lo,
 						     (const struct compat_loop_info __user *)arg);
-			mutex_unlock(&lo->lo_ctl_mutex);
+			mutex_unlock(&loop_ctl_mutex);
 		}
 		break;
 	case LOOP_GET_STATUS:
-		err = mutex_lock_killable(&lo->lo_ctl_mutex);
+		err = mutex_lock_killable(&loop_ctl_mutex);
 		if (!err) {
 			err = loop_get_status_compat(lo,
 						     (struct compat_loop_info __user *)arg);
-			/* loop_get_status() unlocks lo_ctl_mutex */
+			/* loop_get_status() unlocks loop_ctl_mutex */
 		}
 		break;
 	case LOOP_SET_CAPACITY:
@@ -1648,7 +1649,7 @@ static void __lo_release(struct loop_dev
 	if (atomic_dec_return(&lo->lo_refcnt))
 		return;
 
-	mutex_lock(&lo->lo_ctl_mutex);
+	mutex_lock(&loop_ctl_mutex);
 	if (lo->lo_flags & LO_FLAGS_AUTOCLEAR) {
 		/*
 		 * In autoclear mode, stop the loop thread
@@ -1666,7 +1667,7 @@ static void __lo_release(struct loop_dev
 		blk_mq_unfreeze_queue(lo->lo_queue);
 	}
 
-	mutex_unlock(&lo->lo_ctl_mutex);
+	mutex_unlock(&loop_ctl_mutex);
 }
 
 static void lo_release(struct gendisk *disk, fmode_t mode)
@@ -1712,10 +1713,10 @@ static int unregister_transfer_cb(int id
 	struct loop_device *lo = ptr;
 	struct loop_func_table *xfer = data;
 
-	mutex_lock(&lo->lo_ctl_mutex);
+	mutex_lock(&loop_ctl_mutex);
 	if (lo->lo_encryption == xfer)
 		loop_release_xfer(lo);
-	mutex_unlock(&lo->lo_ctl_mutex);
+	mutex_unlock(&loop_ctl_mutex);
 	return 0;
 }
 
@@ -1896,7 +1897,6 @@ static int loop_add(struct loop_device *
 	if (!part_shift)
 		disk->flags |= GENHD_FL_NO_PART_SCAN;
 	disk->flags |= GENHD_FL_EXT_DEVT;
-	mutex_init(&lo->lo_ctl_mutex);
 	atomic_set(&lo->lo_refcnt, 0);
 	lo->lo_number		= i;
 	spin_lock_init(&lo->lo_lock);
@@ -2009,21 +2009,21 @@ static long loop_control_ioctl(struct fi
 		ret = loop_lookup(&lo, parm);
 		if (ret < 0)
 			break;
-		ret = mutex_lock_killable(&lo->lo_ctl_mutex);
+		ret = mutex_lock_killable(&loop_ctl_mutex);
 		if (ret)
 			break;
 		if (lo->lo_state != Lo_unbound) {
 			ret = -EBUSY;
-			mutex_unlock(&lo->lo_ctl_mutex);
+			mutex_unlock(&loop_ctl_mutex);
 			break;
 		}
 		if (atomic_read(&lo->lo_refcnt) > 0) {
 			ret = -EBUSY;
-			mutex_unlock(&lo->lo_ctl_mutex);
+			mutex_unlock(&loop_ctl_mutex);
 			break;
 		}
 		lo->lo_disk->private_data = NULL;
-		mutex_unlock(&lo->lo_ctl_mutex);
+		mutex_unlock(&loop_ctl_mutex);
 		idr_remove(&loop_index_idr, lo->lo_number);
 		loop_remove(lo);
 		break;
--- a/drivers/block/loop.h
+++ b/drivers/block/loop.h
@@ -54,7 +54,6 @@ struct loop_device {
 
 	spinlock_t		lo_lock;
 	int			lo_state;
-	struct mutex		lo_ctl_mutex;
 	struct kthread_worker	worker;
 	struct task_struct	*worker_task;
 	bool			use_dio;



  parent reply	other threads:[~2019-01-21 14:02 UTC|newest]

Thread overview: 109+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-21 13:47 [PATCH 4.19 00/99] 4.19.17-stable review Greg Kroah-Hartman
2019-01-21 13:47 ` [PATCH 4.19 01/99] tty/ldsem: Wake up readers after timed out down_write() Greg Kroah-Hartman
2019-01-21 13:47 ` [PATCH 4.19 02/99] tty: Hold tty_ldisc_lock() during tty_reopen() Greg Kroah-Hartman
2019-01-21 13:47 ` [PATCH 4.19 03/99] tty: Simplify tty->count math in tty_reopen() Greg Kroah-Hartman
2019-01-21 13:47 ` [PATCH 4.19 04/99] tty: Dont hold ldisc lock in tty_reopen() if ldisc present Greg Kroah-Hartman
2019-01-21 13:47 ` [PATCH 4.19 05/99] can: gw: ensure DLC boundaries after CAN frame modification Greg Kroah-Hartman
2019-01-21 13:47 ` [PATCH 4.19 06/99] netfilter: nf_conncount: replace CONNCOUNT_LOCK_SLOTS with CONNCOUNT_SLOTS Greg Kroah-Hartman
2019-01-21 13:47 ` [PATCH 4.19 07/99] netfilter: nf_conncount: dont skip eviction when age is negative Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 08/99] netfilter: nf_conncount: split gc in two phases Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 09/99] netfilter: nf_conncount: restart search when nodes have been erased Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 10/99] netfilter: nf_conncount: merge lookup and add functions Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 11/99] netfilter: nf_conncount: move all list iterations under spinlock Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 12/99] netfilter: nf_conncount: speculative garbage collection on empty lists Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 13/99] netfilter: nf_conncount: fix argument order to find_next_bit Greg Kroah-Hartman
2019-04-22 14:41   ` Andreas Hartmann
2019-04-22 17:27     ` Florian Westphal
2019-04-22 18:49       ` Andreas Hartmann
2019-04-22 18:57         ` Florian Westphal
2019-04-22 19:26           ` Andreas Hartmann
2019-04-22 19:40             ` Florian Westphal
2019-01-21 13:48 ` [PATCH 4.19 14/99] mmc: sdhci-msm: Disable CDR function on TX Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 15/99] Revert "scsi: target: iscsi: cxgbit: fix csk leak" Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 16/99] scsi: target: iscsi: cxgbit: fix csk leak Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 17/99] scsi: target: iscsi: cxgbit: fix csk leak - 2 Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 18/99] arm64/kvm: consistently handle host HCR_EL2 flags Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 19/99] arm64: Dont trap host pointer auth use to EL2 Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 20/99] ipv6: fix kernel-infoleak in ipv6_local_error() Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 21/99] net: bridge: fix a bug on using a neighbour cache entry without checking its state Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 22/99] packet: Do not leak dev refcounts on error exit Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 23/99] tcp: change txhash on SYN-data timeout Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 24/99] tun: publish tfile after its fully initialized Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 25/99] lan743x: Remove phy_read from link status change function Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 26/99] smc: move unhash as early as possible in smc_release() Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 27/99] r8169: dont try to read counters if chip is in a PCI power-save state Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 28/99] bonding: update nest level on unlink Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 29/99] ip: on queued skb use skb_header_pointer instead of pskb_may_pull Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 30/99] r8169: load Realtek PHY driver module before r8169 Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 31/99] crypto: sm3 - fix undefined shift by >= width of value Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 32/99] crypto: caam - fix zero-length buffer DMA mapping Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 33/99] crypto: authencesn - Avoid twice completion call in decrypt path Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 34/99] crypto: ccree - convert to use crypto_authenc_extractkeys() Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 35/99] crypto: bcm " Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 36/99] crypto: authenc - fix parsing key with misaligned rta_len Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 37/99] crypto: talitos - reorder code in talitos_edesc_alloc() Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 38/99] crypto: talitos - fix ablkcipher for CONFIG_VMAP_STACK Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 39/99] xen: Fix x86 sched_clock() interface for xen Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 40/99] Revert "btrfs: balance dirty metadata pages in btrfs_finish_ordered_io" Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 41/99] btrfs: wait on ordered extents on abort cleanup Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 42/99] Yama: Check for pid death before checking ancestry Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 43/99] scsi: core: Synchronize request queue PM status only on successful resume Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 44/99] scsi: sd: Fix cache_type_store() Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 45/99] mips: fix n32 compat_ipc_parse_version Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 46/99] MIPS: BCM47XX: Setup struct device for the SoC Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 47/99] MIPS: lantiq: Fix IPI interrupt handling Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 48/99] drm/i915/gvt: Fix mmap range check Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 49/99] OF: properties: add missing of_node_put Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 50/99] mfd: tps6586x: Handle interrupts on suspend Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 51/99] media: v4l: ioctl: Validate num_planes for debug messages Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 52/99] RDMA/nldev: Dont expose unsafe global rkey to regular user Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 53/99] RDMA/vmw_pvrdma: Return the correct opcode when creating WR Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 54/99] kbuild: Disable LD_DEAD_CODE_DATA_ELIMINATION with ftrace & GCC <= 4.7 Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 55/99] net: dsa: realtek-smi: fix OF child-node lookup Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 56/99] pstore/ram: Avoid allocation and leak of platform data Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 57/99] arm64: kaslr: ensure randomized quantities are clean to the PoC Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 58/99] arm64: dts: marvell: armada-ap806: reserve PSCI area Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 59/99] Disable MSI also when pcie-octeon.pcie_disable on Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 60/99] fix int_sqrt64() for very large numbers Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 61/99] omap2fb: Fix stack memory disclosure Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 62/99] media: vivid: fix error handling of kthread_run Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 63/99] media: vivid: set min width/height to a value > 0 Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 64/99] bpf: in __bpf_redirect_no_mac pull mac only if present Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 65/99] ipv6: make icmp6_send() robust against null skb->dev Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 66/99] LSM: Check for NULL cred-security on free Greg Kroah-Hartman
2019-01-21 13:48 ` [PATCH 4.19 67/99] media: vb2: vb2_mmap: move lock up Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 68/99] sunrpc: handle ENOMEM in rpcb_getport_async Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 69/99] netfilter: ebtables: account ebt_table_info to kmemcg Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 70/99] block: use rcu_work instead of call_rcu to avoid sleep in softirq Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 71/99] selinux: fix GPF on invalid policy Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 72/99] blockdev: Fix livelocks on loop device Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 73/99] sctp: allocate sctp_sockaddr_entry with kzalloc Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 74/99] tipc: fix uninit-value in in tipc_conn_rcv_sub Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 75/99] tipc: fix uninit-value in tipc_nl_compat_link_reset_stats Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 76/99] tipc: fix uninit-value in tipc_nl_compat_bearer_enable Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 77/99] tipc: fix uninit-value in tipc_nl_compat_link_set Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 78/99] tipc: fix uninit-value in tipc_nl_compat_name_table_dump Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 79/99] tipc: fix uninit-value in tipc_nl_compat_doit Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 80/99] block/loop: Dont grab "struct file" for vfs_getattr() operation Greg Kroah-Hartman
2019-01-21 13:49 ` Greg Kroah-Hartman [this message]
2019-01-21 13:49 ` [PATCH 4.19 82/99] loop: Fold __loop_release into loop_release Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 83/99] loop: Get rid of loop_index_mutex Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 84/99] loop: Push lo_ctl_mutex down into individual ioctls Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 85/99] loop: Split setting of lo_state from loop_clr_fd Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 86/99] loop: Push loop_ctl_mutex down into loop_clr_fd() Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 87/99] loop: Push loop_ctl_mutex down to loop_get_status() Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 88/99] loop: Push loop_ctl_mutex down to loop_set_status() Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 89/99] loop: Push loop_ctl_mutex down to loop_set_fd() Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 90/99] loop: Push loop_ctl_mutex down to loop_change_fd() Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 91/99] loop: Move special partition reread handling in loop_clr_fd() Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 92/99] loop: Move loop_reread_partitions() out of loop_ctl_mutex Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 93/99] loop: Fix deadlock when calling blkdev_reread_part() Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 94/99] loop: Avoid circular locking dependency between loop_ctl_mutex and bd_mutex Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 95/99] loop: Get rid of nested acquisition of loop_ctl_mutex Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 96/99] loop: Fix double mutex_unlock(&loop_ctl_mutex) in loop_control_ioctl() Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 97/99] loop: drop caches if offset or block_size are changed Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 98/99] drm/fb-helper: Ignore the value of fb_var_screeninfo.pixclock Greg Kroah-Hartman
2019-01-21 13:49 ` [PATCH 4.19 99/99] selftests: Fix test errors related to lib.mk khdr target Greg Kroah-Hartman
2019-01-22 16:08 ` [PATCH 4.19 00/99] 4.19.17-stable review Naresh Kamboju
2019-01-22 19:23 ` Guenter Roeck
2019-01-22 22:27 ` shuah

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