Merge 4.4.146 into android-4.4

Changes in 4.4.146
	MIPS: Fix off-by-one in pci_resource_to_user()
	Input: elan_i2c - add ACPI ID for lenovo ideapad 330
	Input: i8042 - add Lenovo LaVie Z to the i8042 reset list
	Input: elan_i2c - add another ACPI ID for Lenovo Ideapad 330-15AST
	tracing: Fix double free of event_trigger_data
	tracing: Fix possible double free in event_enable_trigger_func()
	tracing/kprobes: Fix trace_probe flags on enable_trace_kprobe() failure
	tracing: Quiet gcc warning about maybe unused link variable
	xen/netfront: raise max number of slots in xennet_get_responses()
	ALSA: emu10k1: add error handling for snd_ctl_add
	ALSA: fm801: add error handling for snd_ctl_add
	nfsd: fix potential use-after-free in nfsd4_decode_getdeviceinfo
	mm: vmalloc: avoid racy handling of debugobjects in vunmap
	mm/slub.c: add __printf verification to slab_err()
	rtc: ensure rtc_set_alarm fails when alarms are not supported
	netfilter: ipset: List timing out entries with "timeout 1" instead of zero
	infiniband: fix a possible use-after-free bug
	hvc_opal: don't set tb_ticks_per_usec in udbg_init_opal_common()
	powerpc/64s: Fix compiler store ordering to SLB shadow area
	RDMA/mad: Convert BUG_ONs to error flows
	disable loading f2fs module on PAGE_SIZE > 4KB
	f2fs: fix to don't trigger writeback during recovery
	usbip: usbip_detach: Fix memory, udev context and udev leak
	perf/x86/intel/uncore: Correct fixed counter index check in generic code
	perf/x86/intel/uncore: Correct fixed counter index check for NHM
	iwlwifi: pcie: fix race in Rx buffer allocator
	Bluetooth: hci_qca: Fix "Sleep inside atomic section" warning
	Bluetooth: btusb: Add a new Realtek 8723DE ID 2ff8:b011
	ASoC: dpcm: fix BE dai not hw_free and shutdown
	mfd: cros_ec: Fail early if we cannot identify the EC
	mwifiex: handle race during mwifiex_usb_disconnect
	wlcore: sdio: check for valid platform device data before suspend
	media: videobuf2-core: don't call memop 'finish' when queueing
	btrfs: add barriers to btrfs_sync_log before log_commit_wait wakeups
	btrfs: qgroup: Finish rescan when hit the last leaf of extent tree
	PCI: Prevent sysfs disable of device while driver is attached
	ath: Add regulatory mapping for FCC3_ETSIC
	ath: Add regulatory mapping for ETSI8_WORLD
	ath: Add regulatory mapping for APL13_WORLD
	ath: Add regulatory mapping for APL2_FCCA
	ath: Add regulatory mapping for Uganda
	ath: Add regulatory mapping for Tanzania
	ath: Add regulatory mapping for Serbia
	ath: Add regulatory mapping for Bermuda
	ath: Add regulatory mapping for Bahamas
	powerpc/32: Add a missing include header
	powerpc/chrp/time: Make some functions static, add missing header include
	powerpc/powermac: Add missing prototype for note_bootable_part()
	powerpc/powermac: Mark variable x as unused
	powerpc/8xx: fix invalid register expression in head_8xx.S
	pinctrl: at91-pio4: add missing of_node_put
	PCI: pciehp: Request control of native hotplug only if supported
	mwifiex: correct histogram data with appropriate index
	scsi: ufs: fix exception event handling
	ALSA: emu10k1: Rate-limit error messages about page errors
	regulator: pfuze100: add .is_enable() for pfuze100_swb_regulator_ops
	md: fix NULL dereference of mddev->pers in remove_and_add_spares()
	media: smiapp: fix timeout checking in smiapp_read_nvm
	ALSA: usb-audio: Apply rate limit to warning messages in URB complete callback
	HID: hid-plantronics: Re-resend Update to map button for PTT products
	drm/radeon: fix mode_valid's return type
	powerpc/embedded6xx/hlwd-pic: Prevent interrupts from being handled by Starlet
	HID: i2c-hid: check if device is there before really probing
	tty: Fix data race in tty_insert_flip_string_fixed_flag
	dma-iommu: Fix compilation when !CONFIG_IOMMU_DMA
	media: rcar_jpu: Add missing clk_disable_unprepare() on error in jpu_open()
	libata: Fix command retry decision
	media: saa7164: Fix driver name in debug output
	mtd: rawnand: fsl_ifc: fix FSL NAND driver to read all ONFI parameter pages
	brcmfmac: Add support for bcm43364 wireless chipset
	s390/cpum_sf: Add data entry sizes to sampling trailer entry
	perf: fix invalid bit in diagnostic entry
	scsi: 3w-9xxx: fix a missing-check bug
	scsi: 3w-xxxx: fix a missing-check bug
	scsi: megaraid: silence a static checker bug
	thermal: exynos: fix setting rising_threshold for Exynos5433
	bpf: fix references to free_bpf_prog_info() in comments
	media: siano: get rid of __le32/__le16 cast warnings
	drm/atomic: Handling the case when setting old crtc for plane
	ALSA: hda/ca0132: fix build failure when a local macro is defined
	memory: tegra: Do not handle spurious interrupts
	memory: tegra: Apply interrupts mask per SoC
	drm/gma500: fix psb_intel_lvds_mode_valid()'s return type
	ipconfig: Correctly initialise ic_nameservers
	rsi: Fix 'invalid vdd' warning in mmc
	audit: allow not equal op for audit by executable
	microblaze: Fix simpleImage format generation
	usb: hub: Don't wait for connect state at resume for powered-off ports
	crypto: authencesn - don't leak pointers to authenc keys
	crypto: authenc - don't leak pointers to authenc keys
	media: omap3isp: fix unbalanced dma_iommu_mapping
	scsi: scsi_dh: replace too broad "TP9" string with the exact models
	scsi: megaraid_sas: Increase timeout by 1 sec for non-RAID fastpath IOs
	media: si470x: fix __be16 annotations
	drm: Add DP PSR2 sink enable bit
	random: mix rdrand with entropy sent in from userspace
	squashfs: be more careful about metadata corruption
	ext4: fix inline data updates with checksums enabled
	ext4: check for allocation block validity with block group locked
	dmaengine: pxa_dma: remove duplicate const qualifier
	ASoC: pxa: Fix module autoload for platform drivers
	ipv4: remove BUG_ON() from fib_compute_spec_dst
	net: fix amd-xgbe flow-control issue
	net: lan78xx: fix rx handling before first packet is send
	xen-netfront: wait xenbus state change when load module manually
	NET: stmmac: align DMA stuff to largest cache line length
	tcp: do not force quickack when receiving out-of-order packets
	tcp: add max_quickacks param to tcp_incr_quickack and tcp_enter_quickack_mode
	tcp: do not aggressively quick ack after ECN events
	tcp: refactor tcp_ecn_check_ce to remove sk type cast
	tcp: add one more quick ack after after ECN events
	inet: frag: enforce memory limits earlier
	net: dsa: Do not suspend/resume closed slave_dev
	netlink: Fix spectre v1 gadget in netlink_create()
	squashfs: more metadata hardening
	squashfs: more metadata hardenings
	can: ems_usb: Fix memory leak on ems_usb_disconnect()
	net: socket: fix potential spectre v1 gadget in socketcall
	virtio_balloon: fix another race between migration and ballooning
	kvm: x86: vmx: fix vpid leak
	crypto: padlock-aes - Fix Nano workaround data corruption
	scsi: sg: fix minor memory leak in error path
	Linux 4.4.146

Change-Id: Ia7e43a90d0f5603c741811436b8de41884cb2851
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

6 files changed, 29 insertions, 11 deletions

diff --git a/fs/squashfs/cache.c b/fs/squashfs/cache.c
index 6785d086ab38..7d78c3d28bbd 100644
--- a/fs/squashfs/cache.c
+++ b/fs/squashfs/cache.c
@@ -340,6 +340,9 @@ int squashfs_read_metadata(struct super_block *sb, void *buffer,
 
 	TRACE("Entered squashfs_read_metadata [%llx:%x]\n", *block, *offset);
 
+	if (unlikely(length < 0))
+		return -EIO;
+
 	while (length) {
 		entry = squashfs_cache_get(sb, msblk->block_cache, *block, 0);
 		if (entry->error) {
diff --git a/fs/squashfs/file.c b/fs/squashfs/file.c
index 6f5ef8d7e55a..43d946617d2d 100644
--- a/fs/squashfs/file.c
+++ b/fs/squashfs/file.c
@@ -198,7 +198,11 @@ static long long read_indexes(struct super_block *sb, int n,
 		}
 
 		for (i = 0; i < blocks; i++) {
-			int size = le32_to_cpu(blist[i]);
+			int size = squashfs_block_size(blist[i]);
+			if (size < 0) {
+				err = size;
+				goto failure;
+			}
 			block += SQUASHFS_COMPRESSED_SIZE_BLOCK(size);
 		}
 		n -= blocks;
@@ -371,7 +375,7 @@ static int read_blocklist(struct inode *inode, int index, u64 *block)
 			sizeof(size));
 	if (res < 0)
 		return res;
-	return le32_to_cpu(size);
+	return squashfs_block_size(size);
 }
 
 /* Copy data into page cache  */
diff --git a/fs/squashfs/fragment.c b/fs/squashfs/fragment.c
index 0ed6edbc5c71..0681feab4a84 100644
--- a/fs/squashfs/fragment.c
+++ b/fs/squashfs/fragment.c
@@ -49,11 +49,16 @@ int squashfs_frag_lookup(struct super_block *sb, unsigned int fragment,
 				u64 *fragment_block)
 {
 	struct squashfs_sb_info *msblk = sb->s_fs_info;
-	int block = SQUASHFS_FRAGMENT_INDEX(fragment);
-	int offset = SQUASHFS_FRAGMENT_INDEX_OFFSET(fragment);
-	u64 start_block = le64_to_cpu(msblk->fragment_index[block]);
+	int block, offset, size;
 	struct squashfs_fragment_entry fragment_entry;
-	int size;
+	u64 start_block;
+
+	if (fragment >= msblk->fragments)
+		return -EIO;
+	block = SQUASHFS_FRAGMENT_INDEX(fragment);
+	offset = SQUASHFS_FRAGMENT_INDEX_OFFSET(fragment);
+
+	start_block = le64_to_cpu(msblk->fragment_index[block]);
 
 	size = squashfs_read_metadata(sb, &fragment_entry, &start_block,
 					&offset, sizeof(fragment_entry));
@@ -61,9 +66,7 @@ int squashfs_frag_lookup(struct super_block *sb, unsigned int fragment,
 		return size;
 
 	*fragment_block = le64_to_cpu(fragment_entry.start_block);
-	size = le32_to_cpu(fragment_entry.size);
-
-	return size;
+	return squashfs_block_size(fragment_entry.size);
 }
 
 
diff --git a/fs/squashfs/squashfs_fs.h b/fs/squashfs/squashfs_fs.h
index 506f4ba5b983..e66486366f02 100644
--- a/fs/squashfs/squashfs_fs.h
+++ b/fs/squashfs/squashfs_fs.h
@@ -129,6 +129,12 @@
 
 #define SQUASHFS_COMPRESSED_BLOCK(B)	(!((B) & SQUASHFS_COMPRESSED_BIT_BLOCK))
 
+static inline int squashfs_block_size(__le32 raw)
+{
+	u32 size = le32_to_cpu(raw);
+	return (size >> 25) ? -EIO : size;
+}
+
 /*
  * Inode number ops.  Inodes consist of a compressed block number, and an
  * uncompressed offset within that block
diff --git a/fs/squashfs/squashfs_fs_sb.h b/fs/squashfs/squashfs_fs_sb.h
index 8a6995de0277..3b767ce1e46d 100644
--- a/fs/squashfs/squashfs_fs_sb.h
+++ b/fs/squashfs/squashfs_fs_sb.h
@@ -75,6 +75,7 @@ struct squashfs_sb_info {
 	unsigned short				block_log;
 	long long				bytes_used;
 	unsigned int				inodes;
+	unsigned int				fragments;
 	int					xattr_ids;
 };
 #endif
diff --git a/fs/squashfs/super.c b/fs/squashfs/super.c
index 61cd0b39ed0e..4ffbddb688aa 100644
--- a/fs/squashfs/super.c
+++ b/fs/squashfs/super.c
@@ -176,6 +176,7 @@ static int squashfs_fill_super(struct super_block *sb, void *data, int silent)
 	msblk->inode_table = le64_to_cpu(sblk->inode_table_start);
 	msblk->directory_table = le64_to_cpu(sblk->directory_table_start);
 	msblk->inodes = le32_to_cpu(sblk->inodes);
+	msblk->fragments = le32_to_cpu(sblk->fragments);
 	flags = le16_to_cpu(sblk->flags);
 
 	TRACE("Found valid superblock on %s\n", bdevname(sb->s_bdev, b));
@@ -186,7 +187,7 @@ static int squashfs_fill_super(struct super_block *sb, void *data, int silent)
 	TRACE("Filesystem size %lld bytes\n", msblk->bytes_used);
 	TRACE("Block size %d\n", msblk->block_size);
 	TRACE("Number of inodes %d\n", msblk->inodes);
-	TRACE("Number of fragments %d\n", le32_to_cpu(sblk->fragments));
+	TRACE("Number of fragments %d\n", msblk->fragments);
 	TRACE("Number of ids %d\n", le16_to_cpu(sblk->no_ids));
 	TRACE("sblk->inode_table_start %llx\n", msblk->inode_table);
 	TRACE("sblk->directory_table_start %llx\n", msblk->directory_table);
@@ -273,7 +274,7 @@ allocate_id_index_table:
 	sb->s_export_op = &squashfs_export_ops;
 
 handle_fragments:
-	fragments = le32_to_cpu(sblk->fragments);
+	fragments = msblk->fragments;
 	if (fragments == 0)
 		goto check_directory_table;