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661,541 commits

Author SHA1 Message Date
Ard Biesheuvel
fe8de3da13 mac80211: fils_aead: Use crypto api CMAC shash rather than bare cipher
Switch the FILS AEAD code to use a cmac(aes) shash instantiated by the
crypto API rather than reusing the open coded implementation in
aes_cmac_vector(). This makes the code more understandable, and allows
platforms to implement cmac(aes) in a more secure (*) and efficient way
than is typically possible when using the AES cipher directly.

So replace the crypto_cipher by a crypto_shash, and update the aes_s2v()
routine to call the shash interface directly.

* In particular, the generic table based AES implementation is sensitive
  to known-plaintext timing attacks on the key, to which AES based MAC
  algorithms are especially vulnerable, given that their plaintext is not
  usually secret. Time invariant alternatives are available (e.g., based
  on SIMD algorithms), but may incur a setup cost that is prohibitive when
  operating on a single block at a time, which is why they don't usually
  expose the cipher API.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-02-08 09:19:17 +01:00
Pichugin Dmitry
b699b71d82 cfg80211 debugfs: Cleanup some checkpatch issues
This fixes the checkpatch.pl warnings:
* Macros should not use a trailing semicolon.
* Spaces required around that '='.
* Symbolic permissions 'S_IRUGO' are not preferred.

Signed-off-by: Dmitriy Pichugin <smokeman85@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2017-02-08 09:15:59 +01:00
Stephen Smalley
0c461cb727 selinux: fix off-by-one in setprocattr
SELinux tries to support setting/clearing of /proc/pid/attr attributes
from the shell by ignoring terminating newlines and treating an
attribute value that begins with a NUL or newline as an attempt to
clear the attribute.  However, the test for clearing attributes has
always been wrong; it has an off-by-one error, and this could further
lead to reading past the end of the allocated buffer since commit
bb646cdb12 ("proc_pid_attr_write():
switch to memdup_user()").  Fix the off-by-one error.

Even with this fix, setting and clearing /proc/pid/attr attributes
from the shell is not straightforward since the interface does not
support multiple write() calls (so shells that write the value and
newline separately will set and then immediately clear the attribute,
requiring use of echo -n to set the attribute), whereas trying to use
echo -n "" to clear the attribute causes the shell to skip the
write() call altogether since POSIX says that a zero-length write
causes no side effects. Thus, one must use echo -n to set and echo
without -n to clear, as in the following example:
$ echo -n unconfined_u:object_r:user_home_t:s0 > /proc/$$/attr/fscreate
$ cat /proc/$$/attr/fscreate
unconfined_u:object_r:user_home_t:s0
$ echo "" > /proc/$$/attr/fscreate
$ cat /proc/$$/attr/fscreate

Note the use of /proc/$$ rather than /proc/self, as otherwise
the cat command will read its own attribute value, not that of the shell.

There are no users of this facility to my knowledge; possibly we
should just get rid of it.

UPDATE: Upon further investigation it appears that a local process
with the process:setfscreate permission can cause a kernel panic as a
result of this bug.  This patch fixes CVE-2017-2618.

Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
[PM: added the update about CVE-2017-2618 to the commit description]
Cc: stable@vger.kernel.org # 3.5: d6ea83ec68
Signed-off-by: Paul Moore <paul@paul-moore.com>

Signed-off-by: James Morris <james.l.morris@oracle.com>
2017-02-08 19:09:53 +11:00
Haim Dreyfuss
7ca00409b5 iwlwifi: pcie: move msix conf functions above other functions
msix configuration functions should be called by other functions.
For example by pcie_d3_resume, move it above to enable it.

Signed-off-by: Haim Dreyfuss <haim.dreyfuss@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2017-02-08 10:04:09 +02:00
Ingo Molnar
1051408f7e sched/autogroup: Rename auto_group.[ch] to autogroup.[ch]
The names are all 'autogroup', not 'auto_group' - so rename
the kernel/sched/auto_group.[ch] to match the existing
nomenclature.

Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-02-08 09:01:11 +01:00
James Morris
e2241be62d Merge branch 'stable-4.10' of git://git.infradead.org/users/pcmoore/selinux into next 2017-02-08 19:01:07 +11:00
Omar Sandoval
bfeda41d06 stacktrace, lockdep: Fix address, newline ugliness
Since KERN_CONT became meaningful again, lockdep stack traces have had
annoying extra newlines, like this:

[    5.561122] -> #1 (B){+.+...}:
[    5.561528]
[    5.561532] [<ffffffff810d8873>] lock_acquire+0xc3/0x210
[    5.562178]
[    5.562181] [<ffffffff816f6414>] mutex_lock_nested+0x74/0x6d0
[    5.562861]
[    5.562880] [<ffffffffa01aa3c3>] init_btrfs_fs+0x21/0x196 [btrfs]
[    5.563717]
[    5.563721] [<ffffffff81000472>] do_one_initcall+0x52/0x1b0
[    5.564554]
[    5.564559] [<ffffffff811a3af6>] do_init_module+0x5f/0x209
[    5.565357]
[    5.565361] [<ffffffff81122f4d>] load_module+0x218d/0x2b80
[    5.566020]
[    5.566021] [<ffffffff81123beb>] SyS_finit_module+0xeb/0x120
[    5.566694]
[    5.566696] [<ffffffff816fd241>] entry_SYSCALL_64_fastpath+0x1f/0xc2

That's happening because each printk() call now gets printed on its own
line, and we do a separate call to print the spaces before the symbol.
Fix it by doing the printk() directly instead of using the
print_ip_sym() helper.

Additionally, the symbol address isn't very helpful, so let's get rid of
that, too. The final result looks like this:

[    5.194518] -> #1 (B){+.+...}:
[    5.195002]        lock_acquire+0xc3/0x210
[    5.195439]        mutex_lock_nested+0x74/0x6d0
[    5.196491]        do_one_initcall+0x52/0x1b0
[    5.196939]        do_init_module+0x5f/0x209
[    5.197355]        load_module+0x218d/0x2b80
[    5.197792]        SyS_finit_module+0xeb/0x120
[    5.198251]        entry_SYSCALL_64_fastpath+0x1f/0xc2

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Omar Sandoval <osandov@fb.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: kernel-team@fb.com
Fixes: 4bcc595ccd ("printk: reinstate KERN_CONT for printing continuation lines")
Link: http://lkml.kernel.org/r/43b4e114724b2bdb0308fa86cb33aa07d3d67fad.1486510315.git.osandov@fb.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-02-08 08:21:31 +01:00
Chunfeng Yun
f3c4c73704 usb: xhci-mtk: make the reference clock optional
Make the reference clock optional for DTS backward compatibility
and ignore the error if it does not exist.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-08 07:44:52 +01:00
Chunfeng Yun
ca12cb7cb0 usb: mtu3: make the reference clock optional
Make the reference clock optional for DTS backward compatibility
and ignore the error if it does not exist.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-08 07:44:52 +01:00
Chunfeng Yun
cb6efc7bea arm64: dts: mt8173: add reference clock for usb
Due to the reference clock comes from 26M oscillator directly
on mt8173, and it is a fixed-clock in DTS which always turned
on, we ignore it before. But on some platforms, it comes
from PLL, and need be controlled, so here add it, no matter
it is a fixed-clock or not.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-08 07:44:52 +01:00
Gustavo A. R. Silva
23f378ad3b drivers: usb-misc: sisusbvga: remove dead code
The condition modex % 16 cannot be true when modex value is equal to 640
The condition du & 0xff cannot be true when du value is equal to 0x1400

Addresses-Coverity-Id: 101163
Addresses-Coverity-Id: 744373
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-08 07:43:47 +01:00
Gustavo A. R. Silva
3d95521c12 drivers: usb: early: remove unused code
Remove this line of code because devnum is overwritten before it can be used.
This could happen if line of code 609 (goto try_again;) is executed. Otherwise,
devnum is never used again.

Addresses-Coverity-ID: 1226870
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-08 07:43:47 +01:00
Dan Carpenter
5bf63fb40e drm/i915/gvt/kvmgt: remove some dead code
"caps.buf" is always NULL here and "caps.size" is always zero.  The code
is a no-op and can be removed.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2017-02-08 13:11:22 +08:00
Baoyou Xie
e0fa56489f dt: bindings: add documentation for zx2967 family thermal sensor
This patch adds dt-binding documentation for zx2967 family thermal sensor.

Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2017-02-07 20:42:30 -08:00
Fabio Estevam
ef15d36154 drm/fsl-dcu: check for clk_prepare_enable() error
clk_prepare_enable() may fail, so we should better check its return
value.

Also place the of_node_put() function right after clk_prepare_enable(),
in order to avoid calling of_node_put() twice in case clk_prepare_enable()
fails.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Stefan Agner <stefan@agner.ch>
2017-02-07 20:28:04 -08:00
Fabio Estevam
5d2883d51d drm/fsl-dcu: remove unneeded 'ret' assignment
When devm_kzalloc() fails there is no need to assign an error code
to the 'ret' variable as it will not be used after jumping to the
'err_node_put' label, so just remove the assignment.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Signed-off-by: Stefan Agner <stefan@agner.ch>
2017-02-07 20:26:49 -08:00
Antonio Murdaca
1ea0ce4069 selinux: allow changing labels for cgroupfs
This patch allows changing labels for cgroup mounts. Previously, running
chcon on cgroupfs would throw an "Operation not supported". This patch
specifically whitelist cgroupfs.

The patch could also allow containers to write only to the systemd cgroup
for instance, while the other cgroups are kept with cgroup_t label.

Signed-off-by: Antonio Murdaca <runcom@redhat.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Paul Moore <paul@paul-moore.com>
2017-02-07 22:17:47 -05:00
Even Xu
291e9e3f69 HID: intel-ish-hid: ipc: check FW status to distinguish ISH resume paths
For ISH resume, there are two paths, they need different way to handle: one
where ISH is not powered off, in that case a simple resume message is enough,
in other case we need a reset sequence.

We can use ISH FW status to distinguish those two cases and handle them
properly.

Signed-off-by: Even Xu <even.xu@intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-02-08 12:11:57 +09:00
Dave Airlie
5d18a61997 Merge branch 'drm-vmwgfx-fixes-4_10' of git://people.freedesktop.org/~syeh/repos_linux into drm-fixes
Single vmwgfx boot crasher fix.

* 'drm-vmwgfx-fixes-4_10' of git://people.freedesktop.org/~syeh/repos_linux:
  drm/vmwgfx: Fix depth input into drm_mode_legacy_fb_format
2017-02-08 12:05:02 +10:00
Dave Airlie
f864b00e03 Merge branch 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next
Summary:
   - Add UHD support on TM2/TM2E boards.
     . adding interlace mode support and 297MHz pixel clock support
       for UHD mode, setting sysreg register in case of HW trigger mode,
       and adding SiI8620 MHL bridge device support.
   - Fix trigger mode issue on Rinato board.
     . On Rinato board, HW trigger mode doesn't work so fix it.
   - Some fixup and cleanup.

* 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
  drm/exynos: fimd: Do not use HW trigger for exynos3250
  drm/exynos/hdmi: add bridge support
  drm/exynos/decon5433: signal vblank only on odd fields
  drm/exynos/decon5433: add support for interlace modes
  drm/exynos/hdmi: fix PLL for 27MHz settings
  drm/exynos/hdmi: fix VSI infoframe registers
  drm/exynos/hdmi: add 297MHz pixel clock support
  drm/exynos: g2d: change platform driver name to 'exynos-drm-g2d'
  drm/exynos/decon5433: configure sysreg in case of hardware trigger
2017-02-08 11:34:56 +10:00
Dave Airlie
4eaa39c63c Merge branch 'drm-rockchip-next-2017-02-07' of https://github.com/markyzq/kernel-drm-rockchip into drm-next
Single compile fix.

* 'drm-rockchip-next-2017-02-07' of https://github.com/markyzq/kernel-drm-rockchip:
  drm/rockchip: cdn-dp: fix cdn-dp complie warning
2017-02-08 11:28:19 +10:00
Christophe JAILLET
605cdf0875 gdrom: Add missing error code
In case of error, 'err' is known to be 0 here, because of the previous
test. Set it to a -ENOMEM instead.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
2017-02-07 16:17:16 -07:00
Ding Tianhong
bb42ca4740 clocksource/drivers/arm_arch_timer: Work around Hisilicon erratum 161010101
Erratum Hisilicon-161010101 says that the ARM generic timer counter "has
the potential to contain an erroneous value when the timer value
changes". Accesses to TVAL (both read and write) are also affected due
to the implicit counter read. Accesses to CVAL are not affected.

The workaround is to reread the system count registers until the value
of the second read is larger than the first one by less than 32, the
system counter can be guaranteed not to return wrong value twice by
back-to-back read and the error value is always larger than the correct
one by 32. Writes to TVAL are replaced with an equivalent write to CVAL.

Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
[Mark: split patch, fix Kconfig, reword commit message]
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2017-02-08 00:14:04 +01:00
Ding Tianhong
16d10ef29f clocksource/drivers/arm_arch_timer: Introduce generic errata handling infrastructure
Currently we have code inline in the arch timer probe path to cater for
Freescale erratum A-008585, complete with ifdeffery. This is a little
ugly, and will get worse as we try to add more errata handling.

This patch refactors the handling of Freescale erratum A-008585. Now the
erratum is described in a generic arch_timer_erratum_workaround
structure, and the probe path can iterate over these to detect errata
and enable workarounds.

This will simplify the addition and maintenance of code handling
Hisilicon erratum 161010101.

Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
[Mark: split patch, correct Kconfig, reword commit message]
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2017-02-08 00:14:03 +01:00
Ding Tianhong
5444ea6a7f clocksource/drivers/arm_arch_timer: Remove fsl-a008585 parameter
Having a command line option to flip the errata handling for a
particular erratum is a little bit unusual, and it's vastly superior to
pass this in the DT. By common consensus, it's best to kill off the
command line parameter.

Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
[Mark: split patch, reword commit message]
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2017-02-08 00:14:03 +01:00
Ding Tianhong
729e55225b clocksource/drivers/arm_arch_timer: Add dt binding for hisilicon-161010101 erratum
This erratum describes a bug in logic outside the core, so MIDR can't be
used to identify its presence, and reading an SoC-specific revision
register from common arch timer code would be awkward.  So, describe it
in the device tree.

Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2017-02-08 00:13:57 +01:00
Venkat Gopalakrishnan
7942f7b568 scsi: ufs: dump hw regs on link failures
Dump host state, power info and host/vendor specific registers
on link failures. This provides useful info to debug the failures.

Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-02-07 18:04:12 -05:00
Venkat Gopalakrishnan
9c46b86762 scsi: ufs-qcom: dump additional testbus registers
Change testbus default config, dump additional testbus registers along
with other debug vendor specific registers. These additional info are
useful in debugging link related failures.

Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-02-07 18:04:12 -05:00
subhashj@codeaurora.org
0701e49da9 scsi: ufs: kick start clock scaling only after device detection
UFS clock scaling might start kicking in even before the device
is running at the fastest interface speed which is undesirable.
This change moves the clock scaling kick start only after the
device is detected and running at the fastest interface speed.

Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-02-07 18:04:12 -05:00
subhashj@codeaurora.org
401f1e4490 scsi: ufs: don't suspend clock scaling during clock gating
Currently we are suspending clock scaling during clock gating which doesn't
allow us to have clock gating timeout lower than clock scaling polling
window. If clock gating timeout is smaller than the clock scaling polling
window then we will mostly suspend the clock scaling before clock scaling
polling window expires and we might get stuck in same state (scaled down
or scaled up) for quite a long time. And for this reason, we have clock
gating timeout (150ms) greater than clock scaling polling window (100ms).

We would like to have aggressive clock gating timeout even lower than the
clock scaling polling window hence this change is decoupling the clock
scaling suspend/resume from clock gate/ungate. We will not suspend the
clock scaling as part of clock gating instead clock scaling context will
schedule scaling suspend work if there are no more pending transfer
requests.

Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-02-07 18:04:12 -05:00
Gilad Broner
6ba6558838 scsi: ufs: add host state prints in failure cases
Whenever some UFS failure occurs the driver prints the UFS
registers in order to help with analysis of the failure.
However this may not be sufficient in some cases, so having
the host controller state as it is represented and managed in
the driver will contribute to analysis efforts.
Added prints of various fields in the hba struct which may be
of interest.

Signed-off-by: Gilad Broner <gbroner@codeaurora.org>
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-02-07 18:04:12 -05:00
subhashj@codeaurora.org
a3cd5ec55f scsi: ufs: add load based scaling of UFS gear
UFS driver's load based clock scaling feature scales down the ufs related
clocks in order to allow low power modes of chipsets. UniPro 1.6 supports
maximum gear up to HS-G3 (High Speed Gear3) and some of the chipsets
low power modes may not be allowed in HS-G3 hence this change adds support
to scale gear between HS-G3 and HS-G1 based on same existing load based
clock scaling logic.

Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-02-07 18:04:12 -05:00
Gilad Broner
7fabb77b3a scsi: ufs: reduce printout for aborted requests
Details printed for each request that is aborted can overload the
target as there can be several requests that are aborted at once.
This change will print full request details only for the first
aborted request since the last link reset, and minimal details
for other subsequent requests.

Signed-off-by: Gilad Broner <gbroner@codeaurora.org>
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-02-07 18:04:12 -05:00
Gilad Broner
e0b299e360 scsi: ufs: skip request abort task when previous aborts failed
On certain error conditions request abort task itself might fail
when aborting a request. In such case, subsequent request aborts
should skip issuing the abort task as it is expected to fail as well,
and device reset handler will be called next.

Signed-off-by: Gilad Broner <gbroner@codeaurora.org>
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-02-07 18:04:12 -05:00
Arnd Bergmann
413d373267 Input: synaptics-rmi4 - select 'SERIO' when needed
With CONFIG_SERIO=m, we get a build error for the rmi4-f03 driver,
added in linux-4.10:

warning: (HID_RMI) selects RMI4_F03 which has unmet direct dependencies (!UML && INPUT && RMI4_CORE && (SERIO=y || RMI4_CORE=SERIO))
drivers/input/built-in.o: In function `rmi_f03_attention':
rmi_f03.c:(.text+0xcfe0): undefined reference to `serio_interrupt'
rmi_f03.c:(.text+0xd055): undefined reference to `serio_interrupt'
drivers/input/built-in.o: In function `rmi_f03_remove':
rmi_f03.c:(.text+0xd115): undefined reference to `serio_unregister_port'
drivers/input/built-in.o: In function `rmi_f03_probe':
rmi_f03.c:(.text+0xd209): undefined reference to `__serio_register_port'

An earlier patch tried to fix this, but missed the HID_RMI driver that
does a 'select' on the F03 backend.

This adds a hidden Kconfig symbol that enforces 'serio' to be enabled
when RMI4-F03 is, which covers all cases.

Fixes: d7ddad0acc ("Input: synaptics-rmi4 - fix F03 build error when serio is module")
Fixes: c5e8848fc9 ("Input: synaptics-rmi4 - add support for F03")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-07 14:31:45 -08:00
Stephen Smalley
a050a570db selinux: fix off-by-one in setprocattr
SELinux tries to support setting/clearing of /proc/pid/attr attributes
from the shell by ignoring terminating newlines and treating an
attribute value that begins with a NUL or newline as an attempt to
clear the attribute.  However, the test for clearing attributes has
always been wrong; it has an off-by-one error, and this could further
lead to reading past the end of the allocated buffer since commit
bb646cdb12 ("proc_pid_attr_write():
switch to memdup_user()").  Fix the off-by-one error.

Even with this fix, setting and clearing /proc/pid/attr attributes
from the shell is not straightforward since the interface does not
support multiple write() calls (so shells that write the value and
newline separately will set and then immediately clear the attribute,
requiring use of echo -n to set the attribute), whereas trying to use
echo -n "" to clear the attribute causes the shell to skip the
write() call altogether since POSIX says that a zero-length write
causes no side effects. Thus, one must use echo -n to set and echo
without -n to clear, as in the following example:
$ echo -n unconfined_u:object_r:user_home_t:s0 > /proc/$$/attr/fscreate
$ cat /proc/$$/attr/fscreate
unconfined_u:object_r:user_home_t:s0
$ echo "" > /proc/$$/attr/fscreate
$ cat /proc/$$/attr/fscreate

Note the use of /proc/$$ rather than /proc/self, as otherwise
the cat command will read its own attribute value, not that of the shell.

There are no users of this facility to my knowledge; possibly we
should just get rid of it.

UPDATE: Upon further investigation it appears that a local process
with the process:setfscreate permission can cause a kernel panic as a
result of this bug.  This patch fixes CVE-2017-2618.

Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
[PM: added the update about CVE-2017-2618 to the commit description]
Cc: stable@vger.kernel.org # 3.5: d6ea83ec68
Signed-off-by: Paul Moore <paul@paul-moore.com>
2017-02-07 17:31:38 -05:00
Arnd Bergmann
80a94bb357 scsi: aacraid: avoid open-coded upper_32_bits
Shifting a dma_addr_t right by 32 bits causes a compile-time warning
when that type is only 32 bit wide:

drivers/scsi/aacraid/src.c: In function 'aac_src_start_adapter':
drivers/scsi/aacraid/src.c:414:29: error: right shift count >= width of type [-Werror=shift-count-overflow]

This changes the driver to use the predefined macros consistently,
including one correct but open-coded upper_32_bits() instance.

Fixes: d1ef4da848 ("scsi: aacraid: added support for init_struct_8")
Fixes: 423400e64d ("scsi: aacraid: Include HBA direct interface")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-02-07 17:25:05 -05:00
Wei Yongjun
e78395334b Input: synaptics-rmi4 - fix error return code in rmi_probe_interrupts()
Fix to return error code -ENOMEM from the devm_kzalloc() error handling
case instead of 0, as done elsewhere in this function.

Fixes: 6bd0dcfacf ("Input: synaptics-rmi4 - factor out functions
from probe")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-02-07 14:23:43 -08:00
Colin Ian King
7629146977 scsi: aacraid: rcode is unsigned and should be signed int
aac_fib_send can return -ve error returns and hence rcode should be
signed. Currently the rcode >= 0 check is always true and -ve errors are
not being checked.

Thanks to Dan Carpenter for spotting my original broken fix to this
issue.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-02-07 17:22:28 -05:00
David S. Miller
3efa70d78f Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
The conflict was an interaction between a bug fix in the
netvsc driver in 'net' and an optimization of the RX path
in 'net-next'.

Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07 16:29:30 -05:00
Felix Manlunas
76e0e70e64 liquidio: do not dereference pointer if it's NULL
Fix smatch errors by not dereferencing iq pointer if it's NULL.

See http://marc.info/?l=kernel-janitors&m=148637299004834&w=2

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-02-07 15:37:43 -05:00
Laura Abbott
0f5bf6d0af arch: Rename CONFIG_DEBUG_RODATA and CONFIG_DEBUG_MODULE_RONX
Both of these options are poorly named. The features they provide are
necessary for system security and should not be considered debug only.
Change the names to CONFIG_STRICT_KERNEL_RWX and
CONFIG_STRICT_MODULE_RWX to better describe what these options do.

Signed-off-by: Laura Abbott <labbott@redhat.com>
Acked-by: Jessica Yu <jeyu@redhat.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
2017-02-07 12:32:52 -08:00
Laura Abbott
ad21fc4faa arch: Move CONFIG_DEBUG_RODATA and CONFIG_SET_MODULE_RONX to be common
There are multiple architectures that support CONFIG_DEBUG_RODATA and
CONFIG_SET_MODULE_RONX. These options also now have the ability to be
turned off at runtime. Move these to an architecture independent
location and make these options def_bool y for almost all of those
arches.

Signed-off-by: Laura Abbott <labbott@redhat.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
2017-02-07 12:32:52 -08:00
Linus Torvalds
926af6273f Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Load correct firmware in rtl8192ce wireless driver, from Jurij
    Smakov.

 2) Fix leak of tx_ring and tx_cq due to overwriting in mlx4 driver,
    from Martin KaFai Lau.

 3) Need to reference count PHY driver module when it is attached, from
    Mao Wenan.

 4) Don't do zero length vzalloc() in ethtool register dump, from
    Stanislaw Gruszka.

 5) Defer net_disable_timestamp() to a workqueue to get out of locking
    issues, from Eric Dumazet.

 6) We cannot drop the SKB dst when IP options refer to them, fix also
    from Eric Dumazet.

 7) Incorrect packet header offset calculations in ip6_gre, again from
    Eric Dumazet.

 8) Missing tcp_v6_restore_cb() causes use-after-free, from Eric too.

 9) tcp_splice_read() can get into an infinite loop with URG, and hey
    it's from Eric once more.

10) vnet_hdr_sz can change asynchronously, so read it once during
    decision making in macvtap and tun, from Willem de Bruijn.

11) Can't use kernel stack for DMA transfers in USB networking drivers,
    from Ben Hutchings.

12) Handle csum errors properly in UDP by calling the proper destructor,
    from Eric Dumazet.

13) For non-deterministic softirq run when scheduling NAPI from a
    workqueue in mlx4, from Benjamin Poirier.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (28 commits)
  sctp: check af before verify address in sctp_addr_id2transport
  sctp: avoid BUG_ON on sctp_wait_for_sndbuf
  mlx4: Invoke softirqs after napi_reschedule
  udp: properly cope with csum errors
  catc: Use heap buffer for memory size test
  catc: Combine failure cleanup code in catc_probe()
  rtl8150: Use heap buffers for all register access
  pegasus: Use heap buffers for all register access
  macvtap: read vnet_hdr_size once
  tun: read vnet_hdr_sz once
  tcp: avoid infinite loop in tcp_splice_read()
  hns: avoid stack overflow with CONFIG_KASAN
  ipv6: Fix IPv6 packet loss in scenarios involving roaming + snooping switches
  ipv6: tcp: add a missing tcp_v6_restore_cb()
  nl80211: Fix mesh HT operation check
  mac80211: Fix adding of mesh vendor IEs
  mac80211: Allocate a sync skcipher explicitly for FILS AEAD
  mac80211: Fix FILS AEAD protection in Association Request frame
  ip6_gre: fix ip6gre_err() invalid reads
  netlabel: out of bound access in cipso_v4_validate()
  ...
2017-02-07 12:10:57 -08:00
Hugh Dickins
b6789123bc mm: fix KPF_SWAPCACHE in /proc/kpageflags
Commit 6326fec112 ("mm: Use owner_priv bit for PageSwapCache, valid
when PageSwapBacked") aliased PG_swapcache to PG_owner_priv_1 (and
depending on PageSwapBacked being true).

As a result, the KPF_SWAPCACHE bit in '/proc/kpageflags' should now be
synthesized, instead of being shown on unrelated pages which just happen
to have PG_owner_priv_1 set.

Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-02-07 12:08:32 -08:00
Chris Brandt
fb6002a826 clocksource/drivers/ostm: Add renesas-ostm timer driver
This patch adds a OSTM driver for the Renesas architecture.
The OS Timer (OSTM) has independent channels that can be
used as a freerun or interval times.
This driver uses the first probed device as a clocksource
and then any additional devices as clock events.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2017-02-07 20:58:30 +01:00
Chris Brandt
a1966cd29d clocksource/drivers/ostm: Document renesas-ostm timer DT bindings
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2017-02-07 20:58:30 +01:00
David Engraf
7b9f1d16e6 clocksource/drivers/tcb_clksrc: Use 32 bit tcb as sched_clock
On newer boards the TC can be read as single 32 bit value without locking.
Thus the clock can be used as reference for sched_clock which is much more
accurate than the jiffies implementation.

Tested on a Atmel SAMA5D2 board.

Signed-off-by: David Engraf <david.engraf@sysgo.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2017-02-07 20:58:30 +01:00
Linus Walleij
4750535bc9 clocksource/drivers/gemini: Add driver for the Cortina Gemini
This is a rewrite of the Gemini timer
driver in arch/arm/mach-gemini/timer.c trying to do everything
the device tree way:

- Make every IO-access relative to a base address and dynamic
  so we can do a dynamic ioremap and get going.
- Do not poke around directly in the global syscon registers,
  access them using the syscon regmap style design pattern for
  the one register we need to check.
- Find register range and interrupt from the device tree.

Cc: Janos Laube <janos.dev@gmail.com>
Cc: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2017-02-07 20:58:30 +01:00
Linus Walleij
9744b181ee clocksource: add DT bindings for Cortina Gemini
This adds device tree bindings for the Cortina Systems Gemini
timer block used in these SoCs.

Cc: Janos Laube <janos.dev@gmail.com>
Cc: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: devicetree@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2017-02-07 20:58:30 +01:00