* origin/upstream-f2fs-stable-linux-4.4.y:
f2fs: readahead encrypted block during GC
f2fs: avoid fi->i_gc_rwsem[WRITE] lock in f2fs_gc
f2fs: fix performance issue observed with multi-thread sequential read
f2fs: fix to skip verifying block address for non-regular inode
f2fs: rework fault injection handling to avoid a warning
f2fs: support fault_type mount option
f2fs: fix to return success when trimming meta area
f2fs: fix use-after-free of dicard command entry
f2fs: support discard submission error injection
f2fs: split discard command in prior to block layer
f2fs: wake up gc thread immediately when gc_urgent is set
f2fs: fix incorrect range->len in f2fs_trim_fs()
f2fs: refresh recent accessed nat entry in lru list
f2fs: fix avoid race between truncate and background GC
f2fs: avoid race between zero_range and background GC
f2fs: fix to do sanity check with block address in main area v2
f2fs: fix to do sanity check with inline flags
f2fs: fix to reset i_gc_failures correctly
f2fs: fix invalid memory access
f2fs: fix to avoid broken of dnode block list
f2fs: use true and false for boolean values
f2fs: fix to do sanity check with cp_pack_start_sum
f2fs: avoid f2fs_bug_on() in cp_error case
f2fs: fix to clear PG_checked flag in set_page_dirty()
f2fs: fix to active page in lru list for read path
f2fs: don't keep meta pages used for block migration
f2fs: fix to restrict mount condition when without CONFIG_QUOTA
f2fs: quota: do not mount as RDWR without QUOTA if quota feature enabled
f2fs: quota: fix incorrect comments
f2fs: add proc entry to show victim_secmap bitmap
f2fs: let checkpoint flush dnode page of regular
f2fs: issue discard align to section in LFS mode
f2fs: don't allow any writes on aborted atomic writes
f2fs: restrict setting up inode.i_advise
f2fs: fix wrong kernel message when recover fsync data on ro fs
f2fs: clean up ioctl interface naming
f2fs: clean up with f2fs_is_{atomic,volatile}_file()
f2fs: clean up with f2fs_encrypted_inode()
f2fs: clean up with get_current_nat_page
f2fs: kill EXT_TREE_VEC_SIZE
f2fs: avoid duplicated permission check for "trusted." xattrs
f2fs: fix to propagate error from __get_meta_page()
f2fs: fix to do sanity check with i_extra_isize
f2fs: blk_finish_plug of submit_bio in lfs mode
f2fs: do not set free of current section
f2fs: Keep alloc_valid_block_count in sync
f2fs: issue small discard by LBA order
f2fs: stop issuing discard immediately if there is queued IO
f2fs: clean up with IS_INODE()
f2fs: detect bug_on in f2fs_wait_discard_bios
f2fs: fix defined but not used build warnings
f2fs: enable real-time discard by default
f2fs: fix to detect looped node chain correctly
f2fs: fix to do sanity check with block address in main area
f2fs: fix to skip GC if type in SSA and SIT is inconsistent
f2fs: try grabbing node page lock aggressively in sync scenario
f2fs: show the fsync_mode=nobarrier mount option
f2fs: check the right return value of memory alloc function
f2fs: Replace strncpy with memcpy
f2fs: avoid the global name 'fault_name'
f2fs: fix to do sanity check with reserved blkaddr of inline inode
f2fs: fix to do sanity check with node footer and iblocks
f2fs: Allocate and stat mem used by free nid bitmap more accurately
f2fs: fix to do sanity check with user_block_count
f2fs: fix to do sanity check with extra_attr feature
f2fs: fix to correct return value of f2fs_trim_fs
f2fs: fix to do sanity check with {sit,nat}_ver_bitmap_bytesize
f2fs: fix to do sanity check with secs_per_zone
f2fs: disable f2fs_check_rb_tree_consistence
f2fs: introduce and spread verify_blkaddr
f2fs: use timespec64 for inode timestamps
f2fs: fix to wait on page writeback before updating page
f2fs: assign REQ_RAHEAD to bio for ->readpages
f2fs: fix a hungtask problem caused by congestion_wait
f2fs: Fix uninitialized return in f2fs_ioc_shutdown()
f2fs: don't issue discard commands in online discard is on
f2fs: fix to propagate return value of scan_nat_page()
f2fs: support in-memory inode checksum when checking consistency
f2fs: fix error path of fill_super
f2fs: relocate readdir_ra configure initialization
f2fs: move s_res{u,g}id initialization to default_options()
f2fs: don't acquire orphan ino during recovery
f2fs: avoid potential deadlock in f2fs_sbi_store
f2fs: indicate shutdown f2fs to allow unmount successfully
f2fs: keep meta pages in cp_error state
f2fs: do checkpoint in kill_sb
f2fs: allow wrong configured dio to buffered write
f2fs: flush journal nat entries for nat_bits during unmount
Change-Id: I8652e88c1a7670fb41ceb53e9dcff3116ccd5b6f
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
It works as boolean so stores like a boolean too.
Bug: 116734731
Test: Set stune
Change-Id: I0daa3cc1723d009ed5bc2a71fa1c2e3d4ece6a7f
Signed-off-by: Wei Wang <wvw@google.com>
Changes in 4.4.158
iommu/arm-smmu-v3: sync the OVACKFLG to PRIQ consumer register
ALSA: msnd: Fix the default sample sizes
ALSA: usb-audio: Fix multiple definitions in AU0828_DEVICE() macro
xfrm: fix 'passing zero to ERR_PTR()' warning
gfs2: Special-case rindex for gfs2_grow
clk: imx6ul: fix missing of_node_put()
kbuild: add .DELETE_ON_ERROR special target
dmaengine: pl330: fix irq race with terminate_all
MIPS: ath79: fix system restart
media: videobuf2-core: check for q->error in vb2_core_qbuf()
mtd/maps: fix solutionengine.c printk format warnings
fbdev: omapfb: off by one in omapfb_register_client()
video: goldfishfb: fix memory leak on driver remove
fbdev/via: fix defined but not used warning
perf powerpc: Fix callchain ip filtering when return address is in a register
fbdev: Distinguish between interlaced and progressive modes
ARM: exynos: Clear global variable on init error path
perf powerpc: Fix callchain ip filtering
powerpc/powernv: opal_put_chars partial write fix
MIPS: jz4740: Bump zload address
mac80211: restrict delayed tailroom needed decrement
xen-netfront: fix queue name setting
arm64: dts: qcom: db410c: Fix Bluetooth LED trigger
s390/qeth: fix race in used-buffer accounting
s390/qeth: reset layer2 attribute on layer switch
platform/x86: toshiba_acpi: Fix defined but not used build warnings
crypto: sharah - Unregister correct algorithms for SAHARA 3
xen-netfront: fix warn message as irq device name has '/'
RDMA/cma: Protect cma dev list with lock
pstore: Fix incorrect persistent ram buffer mapping
xen/netfront: fix waiting for xenbus state change
IB/ipoib: Avoid a race condition between start_xmit and cm_rep_handler
Tools: hv: Fix a bug in the key delete code
misc: hmc6352: fix potential Spectre v1
usb: Don't die twice if PCI xhci host is not responding in resume
USB: Add quirk to support DJI CineSSD
usb: Avoid use-after-free by flushing endpoints early in usb_set_interface()
usb: host: u132-hcd: Fix a sleep-in-atomic-context bug in u132_get_frame()
USB: add quirk for WORLDE Controller KS49 or Prodipe MIDI 49C USB controller
USB: net2280: Fix erroneous synchronization change
USB: serial: io_ti: fix array underflow in completion handler
usb: misc: uss720: Fix two sleep-in-atomic-context bugs
USB: yurex: Fix buffer over-read in yurex_write()
usb: cdc-wdm: Fix a sleep-in-atomic-context bug in service_outstanding_interrupt()
cifs: prevent integer overflow in nxt_dir_entry()
CIFS: fix wrapping bugs in num_entries()
binfmt_elf: Respect error return from `regset->active'
audit: fix use-after-free in audit_add_watch
mtdchar: fix overflows in adjustment of `count`
MIPS: loongson64: cs5536: Fix PCI_OHCI_INT_REG reads
ARM: hisi: handle of_iomap and fix missing of_node_put
ARM: hisi: fix error handling and missing of_node_put
ARM: hisi: check of_iomap and fix missing of_node_put
drm/nouveau: tegra: Detach from ARM DMA/IOMMU mapping
parport: sunbpp: fix error return code
coresight: Handle errors in finding input/output ports
coresight: tpiu: Fix disabling timeouts
gpiolib: Mark gpio_suffixes array with __maybe_unused
drm/amdkfd: Fix error codes in kfd_get_process
rtc: bq4802: add error handling for devm_ioremap
ALSA: pcm: Fix snd_interval_refine first/last with open min/max
selftest: timers: Tweak raw_skew to SKIP when ADJ_OFFSET/other clock adjustments are in progress
drm/panel: type promotion bug in s6e8aa0_read_mtp_id()
pinctrl: qcom: spmi-gpio: Fix pmic_gpio_config_get() to be compliant
USB: serial: ti_usb_3410_5052: fix array underflow in completion handler
mei: bus: type promotion bug in mei_nfc_if_version()
drivers: net: cpsw: fix segfault in case of bad phy-handle
MIPS: VDSO: Match data page cache colouring when D$ aliases
Linux 4.4.158
Change-Id: I1e31454733d69774fbb97398fd7756438fb8fa17
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
commit 0f02cfbc3d upstream.
When a system suffers from dcache aliasing a user program may observe
stale VDSO data from an aliased cache line. Notably this can break the
expectation that clock_gettime(CLOCK_MONOTONIC, ...) is, as its name
suggests, monotonic.
In order to ensure that users observe updates to the VDSO data page as
intended, align the user mappings of the VDSO data page such that their
cache colouring matches that of the virtual address range which the
kernel will use to update the data page - typically its unmapped address
within kseg0.
This ensures that we don't introduce aliasing cache lines for the VDSO
data page, and therefore that userland will observe updates without
requiring cache invalidation.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Reported-by: Hauke Mehrtens <hauke@hauke-m.de>
Reported-by: Rene Nielsen <rene.nielsen@microsemi.com>
Reported-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Fixes: ebb5e78cc6 ("MIPS: Initial implementation of a VDSO")
Patchwork: https://patchwork.linux-mips.org/patch/20344/
Tested-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Tested-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@linux-mips.org
Cc: stable@vger.kernel.org # v4.4+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit d733f7542a upstream.
If an emac node has a phy-handle property that points to something
which is not a phy, then a segmentation fault will occur when the
interface is brought up. This is because while phy_connect() will
return ERR_PTR() on failure, of_phy_connect() will return NULL.
The common error check uses IS_ERR(), and so missed when
of_phy_connect() fails. The NULL pointer is then dereferenced.
Also, the common error message referenced slave->data->phy_id,
which would be empty in the case of phy-handle. Instead, use the
name of the device_node as a useful identifier. And in the phy_id
case add the error code for completeness.
Fixes: 9e42f71526 ("drivers: net: cpsw: add phy-handle parsing")
Signed-off-by: David Rivshin <drivshin@allworx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
[SZ Lin (林上智): Tweak the patch to use original print function of dev_info()]
Signed-off-by: SZ Lin (林上智) <sz.lin@moxa.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit b40b3e9358 upstream.
We accidentally removed the check for negative returns
without considering the issue of type promotion.
The "if_version_length" variable is type size_t so if __mei_cl_recv()
returns a negative then "bytes_recv" is type promoted
to a high positive value and treated as success.
Cc: <stable@vger.kernel.org>
Fixes: 582ab27a06 ("mei: bus: fix received data size check in NFC fixup")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 5dfdd24eb3 upstream.
Similarly to a recently reported bug in io_ti, a malicious USB device
could set port_number to a negative value and we would underflow the
port array in the interrupt completion handler.
As these devices only have one or two ports, fix this by making sure we
only consider the seventh bit when determining the port number (and
ignore bits 0xb0 which are typically set to 0x30).
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 1cf86bc212 ]
If you do this on an sdm845 board:
grep "" /sys/kernel/debug/pinctrl/*spmi:pmic*/pinconf-groups
...it looks like nonsense. For every pin you see listed:
input bias disabled, input bias high impedance, input bias pull down, input bias pull up, ...
That's because pmic_gpio_config_get() isn't complying with the rules
that pinconf_generic_dump_one() expects. Specifically for boolean
parameters (anything with a "struct pin_config_item" where has_arg is
false) the function expects that the function should return its value
not through the "config" parameter but should return "0" if the value
is set and "-EINVAL" if the value isn't set.
Let's fix this.
>From a quick sample of other pinctrl drivers, it appears to be
tradition to also return 1 through the config parameter for these
boolean parameters when they exist. I'm not one to knock tradition,
so I'll follow tradition and return 1 in these cases. While I'm at
it, I'll also continue searching for four leaf clovers, kocking on
wood three times, and trying not to break mirrors.
NOTE: This also fixes an apparent typo for reading
PIN_CONFIG_BIAS_DISABLE where the old driver was accidentally
using "=" instead of "==" and thus was setting some internal
state when you tried to query PIN_CONFIG_BIAS_DISABLE. Oops.
Fixes: eadff30244 ("pinctrl: Qualcomm SPMI PMIC GPIO pin controller driver")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit ff2d6acdf6 ]
Without this commit the following intervals [x y), (x y) were be
replaced to (y-1 y) by snd_interval_refine_last(). This was also done
if y-1 is part of the previous interval.
With this changes it will be replaced with [y-1 y) in case of y-1 is
part of the previous interval. A similar behavior will be used for
snd_interval_refine_first().
This commit adapts the changes for alsa-lib of commit
9bb985c ("pcm: snd_interval_refine_first/last: exclude value only if
also excluded before")
Signed-off-by: Timo Wischer <twischer@de.adit-jv.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit b23ec59926 ]
Since we put static variable to a header file it's copied to each module
that includes the header. But not all of them are actually used it.
Mark gpio_suffixes array with __maybe_unused to hide a compiler warning:
In file included from
drivers/gpio/gpiolib-legacy.c:6:0:
drivers/gpio/gpiolib.h:95:27: warning: ‘gpio_suffixes’ defined but not used [-Wunused-const-variable=]
static const char * const gpio_suffixes[] = { "gpios", "gpio" };
^~~~~~~~~~~~~
In file included from drivers/gpio/gpiolib-devprop.c:17:0:
drivers/gpio/gpiolib.h:95:27: warning: ‘gpio_suffixes’ defined but not used [-Wunused-const-variable=]
static const char * const gpio_suffixes[] = { "gpios", "gpio" };
^~~~~~~~~~~~~
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit ccff2dface ]
Probing the TPIU driver under UBSan triggers an out-of-bounds shift
warning in coresight_timeout():
...
[ 5.677530] UBSAN: Undefined behaviour in drivers/hwtracing/coresight/coresight.c:929:16
[ 5.685542] shift exponent 64 is too large for 64-bit type 'long unsigned int'
...
On closer inspection things are exponentially out of whack because we're
passing a bitmask where a bit number should be. Amusingly, it seems that
both calls will find their expected values by sheer luck and appear to
succeed: 1 << FFCR_FON_MAN ends up at bit 64 which whilst undefined
evaluates as zero in practice, while 1 << FFSR_FT_STOPPED finds bit 2
(TCPresent) which apparently is usually tied high.
Following the examples of other drivers, define separate FOO and FOO_BIT
macros for masks vs. indices, and put things right.
CC: Robert Walker <robert.walker@arm.com>
CC: Mike Leach <mike.leach@linaro.org>
CC: Mathieu Poirier <mathieu.poirier@linaro.org>
Fixes: 11595db8e1 ("coresight: Fix disabling of CoreSight TPIU")
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit b59fb482b5 ]
Depending on the kernel configuration, early ARM architecture setup code
may have attached the GPU to a DMA/IOMMU mapping that transparently uses
the IOMMU to back the DMA API. Tegra requires special handling for IOMMU
backed buffers (a special bit in the GPU's MMU page tables indicates the
memory path to take: via the SMMU or directly to the memory controller).
Transparently backing DMA memory with an IOMMU prevents Nouveau from
properly handling such memory accesses and causes memory access faults.
As a side-note: buffers other than those allocated in instance memory
don't need to be physically contiguous from the GPU's perspective since
the GPU can map them into contiguous buffers using its own MMU. Mapping
these buffers through the IOMMU is unnecessary and will even lead to
performance degradation because of the additional translation. One
exception to this are compressible buffers which need large pages. In
order to enable these large pages, multiple small pages will have to be
combined into one large (I/O virtually contiguous) mapping via the
IOMMU. However, that is a topic outside the scope of this fix and isn't
currently supported. An implementation will want to explicitly create
these large pages in the Nouveau driver, so detaching from a DMA/IOMMU
mapping would still be required.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Tested-by: Nicolas Chauvet <kwizart@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 81646a3d39 ]
of_find_compatible_node() returns a device node with refcount incremented
and thus needs an explicit of_node_put(). Further relying on an unchecked
of_iomap() which can return NULL is problematic here, after all ctrl_base
is critical enough for hix5hd2_set_cpu() to call BUG() if not available
so a check seems mandated here.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
0002 Fixes: commit 06cc5c1d4d ("ARM: hisi: enable hix5hd2 SoC")
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 9f30b5ae05 ]
of_iomap() can return NULL which seems critical here and thus should be
explicitly flagged so that the cause of system halting can be understood.
As of_find_compatible_node() is returning a device node with refcount
incremented it must be explicitly decremented here.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Fixes: commit 7fda91e731 ("ARM: hisi: enable smp for HiP01")
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit d396cb185c ]
Relying on an unchecked of_iomap() which can return NULL is problematic
here, an explicit check seems mandatory. Also the call to
of_find_compatible_node() returns a device node with refcount incremented
therefor an explicit of_node_put() is needed here.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Fixes: commit 22bae42904 ("ARM: hi3xxx: add hotplug support")
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit cd87668d60 ]
The PCI_OHCI_INT_REG case in pci_ohci_read_reg() contains the following
if statement:
if ((lo & 0x00000f00) == CS5536_USB_INTR)
CS5536_USB_INTR expands to the constant 11, which gives us the following
condition which can never evaluate true:
if ((lo & 0xf00) == 11)
At least when using GCC 8.1.0 this falls foul of the tautoligcal-compare
warning, and since the code is built with the -Werror flag the build
fails.
Fix this by shifting lo right by 8 bits in order to match the
corresponding PCI_OHCI_INT_REG case in pci_ohci_write_reg().
Signed-off-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/19861/
Cc: Huacai Chen <chenhc@lemote.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 6c6bc9ea84 ]
The first checks in mtdchar_read() and mtdchar_write() attempt to limit
`count` such that `*ppos + count <= mtd->size`. However, they ignore the
possibility of `*ppos > mtd->size`, allowing the calculation of `count` to
wrap around. `mtdchar_lseek()` prevents seeking beyond mtd->size, but the
pread/pwrite syscalls bypass this.
I haven't found any codepath on which this actually causes dangerous
behavior, but it seems like a sensible change anyway.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit baa2a4fdd5 ]
audit_add_watch stores locally krule->watch without taking a reference
on watch. Then, it calls audit_add_to_parent, and uses the watch stored
locally.
Unfortunately, it is possible that audit_add_to_parent updates
krule->watch.
When it happens, it also drops a reference of watch which
could free the watch.
How to reproduce (with KASAN enabled):
auditctl -w /etc/passwd -F success=0 -k test_passwd
auditctl -w /etc/passwd -F success=1 -k test_passwd2
The second call to auditctl triggers the use-after-free, because
audit_to_parent updates krule->watch to use a previous existing watch
and drops the reference to the newly created watch.
To fix the issue, we grab a reference of watch and we release it at the
end of the function.
Signed-off-by: Ronny Chevalier <ronny.chevalier@hp.com>
Reviewed-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 2f819db565 ]
The regset API documented in <linux/regset.h> defines -ENODEV as the
result of the `->active' handler to be used where the feature requested
is not available on the hardware found. However code handling core file
note generation in `fill_thread_core_info' interpretes any non-zero
result from the `->active' handler as the regset requested being active.
Consequently processing continues (and hopefully gracefully fails later
on) rather than being abandoned right away for the regset requested.
Fix the problem then by making the code proceed only if a positive
result is returned from the `->active' handler.
Signed-off-by: Maciej W. Rozycki <macro@mips.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: 4206d3aa19 ("elf core dump: notes user_regset")
Patchwork: https://patchwork.linux-mips.org/patch/19332/
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: James Hogan <jhogan@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-fsdevel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 6e22e3af7b upstream.
wdm_in_callback() is a completion handler function for the USB driver.
So it should not sleep. But it calls service_outstanding_interrupt(),
which calls usb_submit_urb() with GFP_KERNEL.
To fix this bug, GFP_KERNEL is replaced with GFP_ATOMIC.
This bug is found by my static analysis tool DSAC.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit bc8acc214d upstream.
async_complete() in uss720.c is a completion handler function for the
USB driver. So it should not sleep, but it is can sleep according to the
function call paths (from bottom to top) in Linux-4.16.
[FUNC] set_1284_register(GFP_KERNEL)
drivers/usb/misc/uss720.c, 372:
set_1284_register in parport_uss720_frob_control
drivers/parport/ieee1284.c, 560:
[FUNC_PTR]parport_uss720_frob_control in parport_ieee1284_ack_data_avail
drivers/parport/ieee1284.c, 577:
parport_ieee1284_ack_data_avail in parport_ieee1284_interrupt
./include/linux/parport.h, 474:
parport_ieee1284_interrupt in parport_generic_irq
drivers/usb/misc/uss720.c, 116:
parport_generic_irq in async_complete
[FUNC] get_1284_register(GFP_KERNEL)
drivers/usb/misc/uss720.c, 382:
get_1284_register in parport_uss720_read_status
drivers/parport/ieee1284.c, 555:
[FUNC_PTR]parport_uss720_read_status in parport_ieee1284_ack_data_avail
drivers/parport/ieee1284.c, 577:
parport_ieee1284_ack_data_avail in parport_ieee1284_interrupt
./include/linux/parport.h, 474:
parport_ieee1284_interrupt in parport_generic_irq
drivers/usb/misc/uss720.c, 116:
parport_generic_irq in async_complete
Note that [FUNC_PTR] means a function pointer call is used.
To fix these bugs, GFP_KERNEL is replaced with GFP_ATOMIC.
These bugs are found by my static analysis tool DSAC.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 691a03cfe8 upstream.
As reported by Dan Carpenter, a malicious USB device could set
port_number to a negative value and we would underflow the port array in
the interrupt completion handler.
As these devices only have one or two ports, fix this by making sure we
only consider the seventh bit when determining the port number (and
ignore bits 0xb0 which are typically set to 0x30).
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable <stable@vger.kernel.org>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit dec3c23c9a upstream.
Commit f16443a034 ("USB: gadgetfs, dummy-hcd, net2280: fix locking
for callbacks") was based on a serious misunderstanding. It
introduced regressions into both the dummy-hcd and net2280 drivers.
The problem in dummy-hcd was fixed by commit 7dbd8f4cab ("USB:
dummy-hcd: Fix erroneous synchronization change"), but the problem in
net2280 remains. Namely: the ->disconnect(), ->suspend(), ->resume(),
and ->reset() callbacks must be invoked without the private lock held;
otherwise a deadlock will occur when the callback routine tries to
interact with the UDC driver.
This patch largely is a reversion of the relevant parts of
f16443a034. It also drops the private lock around the calls to
->suspend() and ->resume() (something the earlier patch forgot to do).
This is safe from races with device interrupts because it occurs
within the interrupt handler.
Finally, the patch changes where the ->disconnect() callback is
invoked when net2280_pullup() turns the pullup off. Rather than
making the callback from within stop_activity() at a time when dropping
the private lock could be unsafe, the callback is moved to a point
after the lock has already been dropped.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Fixes: f16443a034 ("USB: gadgetfs, dummy-hcd, net2280: fix locking for callbacks")
Reported-by: D. Ziesche <dziesche@zes.com>
Tested-by: D. Ziesche <dziesche@zes.com>
CC: <stable@vger.kernel.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 6d4f268fa1 upstream.
i_usX2Y_subs_startup in usbusx2yaudio.c is a completion handler function
for the USB driver. So it should not sleep, but it is can sleep
according to the function call paths (from bottom to top) in Linux-4.16.
[FUNC] msleep
drivers/usb/host/u132-hcd.c, 2558:
msleep in u132_get_frame
drivers/usb/core/hcd.c, 2231:
[FUNC_PTR]u132_get_frame in usb_hcd_get_frame_number
drivers/usb/core/usb.c, 822:
usb_hcd_get_frame_number in usb_get_current_frame_number
sound/usb/usx2y/usbusx2yaudio.c, 303:
usb_get_current_frame_number in i_usX2Y_urb_complete
sound/usb/usx2y/usbusx2yaudio.c, 366:
i_usX2Y_urb_complete in i_usX2Y_subs_startup
Note that [FUNC_PTR] means a function pointer call is used.
To fix this bug, msleep() is replaced with mdelay().
This bug is found by my static analysis tool DSAC.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit f9a5b4f58b upstream.
The steps taken by usb core to set a new interface is very different from
what is done on the xHC host side.
xHC hardware will do everything in one go. One command is used to set up
new endpoints, free old endpoints, check bandwidth, and run the new
endpoints.
All this is done by xHC when usb core asks the hcd to check for
available bandwidth. At this point usb core has not yet flushed the old
endpoints, which will cause use-after-free issues in xhci driver as
queued URBs are cancelled on a re-allocated endpoint.
To resolve this add a call to usb_disable_interface() which will flush
the endpoints before calling usb_hcd_alloc_bandwidth()
Additional checks in xhci driver will also be implemented to gracefully
handle stale URB cancel on freed and re-allocated endpoints
Cc: <stable@vger.kernel.org>
Reported-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit f45681f9be upstream.
This device does not correctly handle the LPM operations.
Also, the device cannot handle ATA pass-through commands
and locks up when attempted while running in super speed.
This patch adds the equivalent quirk logic as found in uas.
Signed-off-by: Tim Anderson <tsa@biglakesoftware.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit f3dc41c5d2 upstream.
usb_hc_died() should only be called once, and with the primary HCD
as parameter. It will mark both primary and secondary hcd's dead.
Remove the extra call to usb_cd_died with the shared hcd as parameter.
Fixes: ff9d78b36f ("USB: Set usb_hcd->state and flags for shared roothubs")
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit de916736aa upstream.
val is indirectly controlled by user-space, hence leading to a
potential exploitation of the Spectre variant 1 vulnerability.
This issue was detected with the help of Smatch:
drivers/misc/hmc6352.c:54 compass_store() warn: potential spectre issue
'map' [r]
Fix this by sanitizing val before using it to index map
Notice that given that speculation windows are large, the policy is
to kill the speculation on the first load and not worry if it can be
completed with a dependent load/store [1].
[1] https://marc.info/?l=linux-kernel&m=152449131114778&w=2
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 816e846c2e upstream.
Inside of start_xmit() the call to check if the connection is up and the
queueing of the packets for later transmission is not atomic which leaves
a window where cm_rep_handler can run, set the connection up, dequeue
pending packets and leave the subsequently queued packets by start_xmit()
sitting on neigh->queue until they're dropped when the connection is torn
down. This only applies to connected mode. These dropped packets can
really upset TCP, for example, and cause multi-minute delays in
transmission for open connections.
Here's the code in start_xmit where we check to see if the connection is
up:
if (ipoib_cm_get(neigh)) {
if (ipoib_cm_up(neigh)) {
ipoib_cm_send(dev, skb, ipoib_cm_get(neigh));
goto unref;
}
}
The race occurs if cm_rep_handler execution occurs after the above
connection check (specifically if it gets to the point where it acquires
priv->lock to dequeue pending skb's) but before the below code snippet in
start_xmit where packets are queued.
if (skb_queue_len(&neigh->queue) < IPOIB_MAX_PATH_REC_QUEUE) {
push_pseudo_header(skb, phdr->hwaddr);
spin_lock_irqsave(&priv->lock, flags);
__skb_queue_tail(&neigh->queue, skb);
spin_unlock_irqrestore(&priv->lock, flags);
} else {
++dev->stats.tx_dropped;
dev_kfree_skb_any(skb);
}
The patch acquires the netif tx lock in cm_rep_handler for the section
where it sets the connection up and dequeues and retransmits deferred
skb's.
Fixes: 839fcaba35 ("IPoIB: Connected mode experimental support")
Cc: stable@vger.kernel.org
Signed-off-by: Aaron Knister <aaron.s.knister@nasa.gov>
Tested-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 8edfe2e992 upstream.
Commit 822fb18a82 ("xen-netfront: wait xenbus state change when load
module manually") added a new wait queue to wait on for a state change
when the module is loaded manually. Unfortunately there is no wakeup
anywhere to stop that waiting.
Instead of introducing a new wait queue rename the existing
module_unload_q to module_wq and use it for both purposes (loading and
unloading).
As any state change of the backend might be intended to stop waiting
do the wake_up_all() in any case when netback_changed() is called.
Fixes: 822fb18a82 ("xen-netfront: wait xenbus state change when load module manually")
Cc: <stable@vger.kernel.org> #4.18
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 831b624df1 upstream.
persistent_ram_vmap() returns the page start vaddr.
persistent_ram_iomap() supports non-page-aligned mapping.
persistent_ram_buffer_map() always adds offset-in-page to the vaddr
returned from these two functions, which causes incorrect mapping of
non-page-aligned persistent ram buffer.
By default ftrace_size is 4096 and max_ftrace_cnt is nr_cpu_ids. Without
this patch, the zone_sz in ramoops_init_przs() is 4096/nr_cpu_ids which
might not be page aligned. If the offset-in-page > 2048, the vaddr will be
in next page. If the next page is not mapped, it will cause kernel panic:
[ 0.074231] BUG: unable to handle kernel paging request at ffffa19e0081b000
...
[ 0.075000] RIP: 0010:persistent_ram_new+0x1f8/0x39f
...
[ 0.075000] Call Trace:
[ 0.075000] ramoops_init_przs.part.10.constprop.15+0x105/0x260
[ 0.075000] ramoops_probe+0x232/0x3a0
[ 0.075000] platform_drv_probe+0x3e/0xa0
[ 0.075000] driver_probe_device+0x2cd/0x400
[ 0.075000] __driver_attach+0xe4/0x110
[ 0.075000] ? driver_probe_device+0x400/0x400
[ 0.075000] bus_for_each_dev+0x70/0xa0
[ 0.075000] driver_attach+0x1e/0x20
[ 0.075000] bus_add_driver+0x159/0x230
[ 0.075000] ? do_early_param+0x95/0x95
[ 0.075000] driver_register+0x70/0xc0
[ 0.075000] ? init_pstore_fs+0x4d/0x4d
[ 0.075000] __platform_driver_register+0x36/0x40
[ 0.075000] ramoops_init+0x12f/0x131
[ 0.075000] do_one_initcall+0x4d/0x12c
[ 0.075000] ? do_early_param+0x95/0x95
[ 0.075000] kernel_init_freeable+0x19b/0x222
[ 0.075000] ? rest_init+0xbb/0xbb
[ 0.075000] kernel_init+0xe/0xfc
[ 0.075000] ret_from_fork+0x3a/0x50
Signed-off-by: Bin Yang <bin.yang@intel.com>
[kees: add comments describing the mapping differences, updated commit log]
Fixes: 24c3d2f342 ("staging: android: persistent_ram: Make it possible to use memory outside of bootmem")
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 954a8e3aea upstream.
When AF_IB addresses are used during rdma_resolve_addr() a lock is not
held. A cma device can get removed while list traversal is in progress
which may lead to crash. ie
CPU0 CPU1
==== ====
rdma_resolve_addr()
cma_resolve_ib_dev()
list_for_each() cma_remove_one()
cur_dev->device mutex_lock(&lock)
list_del();
mutex_unlock(&lock);
cma_process_remove();
Therefore, hold a lock while traversing the list which avoids such
situation.
Cc: <stable@vger.kernel.org> # 3.10
Fixes: f17df3b0de ("RDMA/cma: Add support for AF_IB to rdma_resolve_addr()")
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 0e7d4d932f ]
This patch fixes two typos related to unregistering algorithms supported by
SAHARAH 3. In sahara_register_algs the wrong algorithms are unregistered
in case of an error. In sahara_unregister_algs the wrong array is used to
determine the iteration count.
Signed-off-by: Michael Müller <michael@fds-team.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 70551dc46f ]
After the subdriver's remove() routine has completed, the card's layer
mode is undetermined again. Reflect this in the layer2 field.
If qeth_dev_layer2_store() hits an error after remove() was called, the
card _always_ requires a setup(), even if the previous layer mode is
requested again.
But qeth_dev_layer2_store() bails out early if the requested layer mode
still matches the current one. So unless we reset the layer2 field,
re-probing the card back to its previous mode is currently not possible.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit a702349a40 ]
By updating q->used_buffers only _after_ do_QDIO() has completed, there
is a potential race against the buffer's TX completion. In the unlikely
case that the TX completion path wins, qeth_qdio_output_handler() would
decrement the counter before qeth_flush_buffers() even incremented it.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit e53db01831 ]
Current LED trigger, 'bt', is not known/used by any existing driver.
Fix this by renaming it to 'bluetooth-power' trigger which is
controlled by the Bluetooth subsystem.
Fixes: 9943230c88 ("arm64: dts: qcom: Add apq8016-sbc board LED's related device nodes")
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
