Some modules call config_item_init_type_name() and config_group_init_type_name()
with parameter "name" directly controlled by userspace. These two
functions call config_item_set_name() with this name used as a format
string, which can be used to leak information such as content of the
stack to userspace.
For example, make_netconsole_target() in netconsole module calls
config_item_init_type_name() with the name of a newly-created directory.
This means that the following commands give some unexpected output, with
configfs mounted in /sys/kernel/config/ and on a system with a
configured eth0 ethernet interface:
# modprobe netconsole
# mkdir /sys/kernel/config/netconsole/target_%lx
# echo eth0 > /sys/kernel/config/netconsole/target_%lx/dev_name
# echo 1 > /sys/kernel/config/netconsole/target_%lx/enabled
# echo eth0 > /sys/kernel/config/netconsole/target_%lx/dev_name
# dmesg |tail -n1
[ 142.697668] netconsole: target (target_ffffffffc0ae8080) is
enabled, disable to update parameters
The directory name is correct but %lx has been interpreted in the
internal item name, displayed here in the error message used by
store_dev_name() in drivers/net/netconsole.c.
To fix this, update every caller of config_item_set_name to use "%s"
when operating on untrusted input.
This issue was found using -Wformat-security gcc flag, once a __printf
attribute has been added to config_item_set_name().
Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Using __printf attributes helps to detect several format string issues
at compile time (even though -Wformat-security is currently disabled in
Makefile). For example it can detect when formatting a pointer as a
number, like the issue fixed in commit a3fa71c40f ("wl18xx: show
rx_frames_per_rates as an array as it really is"), or when the arguments
do not match the format string, c.f. for example commit 5ce1aca814
("reiserfs: fix __RASSERT format string").
To prevent similar bugs in the future, add a __printf attribute to every
function prototype which needs one in include/linux/ and lib/. These
functions were mostly found by using gcc's -Wsuggest-attribute=format
flag.
Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
On s390 we only can enable hugepages if the underlying hardware/hypervisor
also does support this. Common code now would assume this to be
signaled by setting HPAGE_SHIFT to 0. But on s390, where we only
support one hugepage size, there is a link between HPAGE_SHIFT and
pageblock_order.
So instead of setting HPAGE_SHIFT to 0, we will implement the check for
the hardware capability.
Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
s390 has a constant hugepage size, by setting HPAGE_SHIFT we also change
e.g. the pageblock_order, which should be independent in respect to
hugepage support.
With this patch every architecture is free to define how to check
for hugepage support.
Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Heiko noticed that the current check for hugepage support on s390 is a
little bit too harsh as systems which do not support will crash.
The reason is that pageblock_order can now get negative when we set
HPAGE_SHIFT to 0. To avoid all this and to avoid opening another can of
worms with enabling HUGETLB_PAGE_SIZE_VARIABLE I think it would be best
to simply allow architectures to define their own hugepages_supported().
Revert bea41197ea ("s390/mm: make hugepages_supported a boot time
decision") in preparation.
Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Heiko noticed that the current check for hugepage support on s390 is a
little bit too harsh as systems which do not support will crash.
The reason is that pageblock_order can now get negative when we set
HPAGE_SHIFT to 0. To avoid all this and to avoid opening another can of
worms with enabling HUGETLB_PAGE_SIZE_VARIABLE I think it would be best
to simply allow architectures to define their own hugepages_supported().
This patch (of 4): revert commit cf54e2fce5 ("s390/mm: change
HPAGE_SHIFT type to int") in preparation.
Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
openrisc-allnoconfig:
kernel/uid16.c: In function 'SYSC_setgroups16':
kernel/uid16.c:184:2: error: implicit declaration of function 'groups_alloc'
kernel/uid16.c:184:13: warning: assignment makes pointer from integer without a cast
openrisc shouldn't be setting CONFIG_UID16 when CONFIG_MULTIUSER=n.
Fixes: 2813893f8b ("kernel: conditionally support non-root users, groups and capabilities")
Reported-by: Fengguang Wu <fengguang.wu@gmail.com>
Cc: Iulia Manda <iulia.manda21@gmail.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
I am moving from mhocko@suse.cz to mhocko@kernel.org for kernel related
stuff.
Signed-off-by: Michal Hocko <mhocko@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The purpose of the option was documented in
Documentation/filesystems/proc.txt but the help text was missing.
Add small help text that also points to the documentation.
Signed-off-by: Iago López Galeiras <iago@endocode.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Since suse.{de,cz} is deprecated to use (but will still work for some
time), switch to suse.com which is now to be used instead.
Signed-off-by: Jiri Slaby <jslaby@suse.com>
Acked-by: Alexander Graf <agraf@suse.de>
Acked-by: David Sterba <dsterba@suse.com>
Acked-by: Hannes Reinecke <hare@suse.com>
Acked-by: Jan Kara <jack@suse.com>
Acked-by: Jean Delvare <jdelvare@suse.com>
Acked-by: Jiri Kosina <jkosina@suse.com>
Acked-by: Michal Marek <mmarek@suse.com>
Acked-by: NeilBrown <neilb@suse.com>
Acked-by: Oliver Neukum <oneukum@suse.de>
Acked-by: Takashi Iwai <tiwai@suse.com>
Acked-by: Thomas Renninger <trenn@suse.de>
Acked-by: Tomas Cech <sleep_walker@suse.com>
Acked-by: Vojtech Pavlik <vojtech@suse.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Remove the 'flags' variable in order to fix the following warning:
drivers/rtc/rtc-armada38x.c:91:22: warning: unused variable 'flags' [-Wunused-variable]
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
rtc_sysfs_add_device checks if device can wakeup before creating the
wakealarm file in sysfs. Thus the driver must set wakeup capability
before registering the rtc device.
Signed-off-by: Wei-Ning Huang <wnhuang@google.com>
Acked-by: Eddie Huang <eddie.huang@mediatek.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Here's some staging and IIO driver fixes for 4.2-rc3.
Nothing major, the majority are IIO issues that were reported, with a
few other minor staging driver fixes. All have been in linux-next for a
while with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
iEYEABECAAYFAlWpRFUACgkQMUfUDdst+yke/wCeJPDuYuOp/SFhyviMx9ojKIGF
kVIAoI1xDY4SwVExztXcqyKo6m0H2yZ4
=pxAa
-----END PGP SIGNATURE-----
Merge tag 'staging-4.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging and IIO driver fixes from Greg KH:
"Here's some staging and IIO driver fixes for 4.2-rc3.
Nothing major, the majority are IIO issues that were reported, with a
few other minor staging driver fixes. All have been in linux-next for
a while with no reported issues"
* tag 'staging-4.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (25 commits)
staging: vt6656: check ieee80211_bss_conf bssid not NULL
staging: vt6655: check ieee80211_bss_conf bssid not NULL
staging:lustre: remove irq.h from socklnd.h
staging: make board support depend on OF_IRQ and CLKDEV_LOOKUP
iio: tmp006: Check channel info on write
iio: sx9500: Add missing init in sx9500_buffer_pre{en,dis}able()
iio:light:ltr501: fix regmap dependency
iio:light:ltr501: fix variable in ltr501_init
iio: sx9500: fix bug in compensation code
iio: sx9500: rework error handling of raw readings
iio: magnetometer: mmc35240: fix available sampling frequencies
iio:light:stk3310: Fix REGMAP_I2C dependency
iio: light: STK3310: un-invert proximity values
iio:adc:cc10001_adc: fix Kconfig dependency
iio: light: tcs3414: Fix bug preventing to set integration time
iio:accel:bmc150-accel: fix counting direction
iio:light:cm3323: clear bitmask before set
iio: adc: at91_adc: allow to use full range of startup time
iio: DAC: ad5624r_spi: fix bit shift of output data value
iio: proximity: sx9500: Fix proximity value
...
Here's some USB driver fixes for 4.2-rc3.
The ususal number of gadget driver fixes are in here, along with some
new device ids and a build fix for the mn10300 arch which required some
symbols to be renamed in the mos7720 driver.
All have been in linux-next for a while with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
iEYEABECAAYFAlWpRQEACgkQMUfUDdst+ykQTACfbXmLNn/1ycArRysqHGg5llIZ
pdIAn2Yi8TCbXr9HvtugUcxQrDIANNcF
=WUtC
-----END PGP SIGNATURE-----
Merge tag 'usb-4.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB driver fixes from Greg KH:
"Here's some USB driver fixes for 4.2-rc3.
The ususal number of gadget driver fixes are in here, along with some
new device ids and a build fix for the mn10300 arch which required
some symbols to be renamed in the mos7720 driver.
All have been in linux-next for a while with no reported issues"
* tag 'usb-4.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
USB: serial: Destroy serial_minors IDR on module exit
usb: gadget: f_midi: fix error recovery path
usb: phy: mxs: suspend to RAM causes NULL pointer dereference
usb: gadget: udc: fix free_irq() after request_irq() failed
usb: gadget: composite: Fix NULL pointer dereference
usb: gadget: f_fs: do not set cancel function on synchronous {read,write}
usb: f_mass_storage: limit number of reported LUNs
usb: dwc3: core: avoid NULL pointer dereference
usb: dwc2: embed storage for reg backup in struct dwc2_hsotg
usb: dwc2: host: allocate qtd before atomic enqueue
usb: dwc2: host: allocate qh before atomic enqueue
usb: musb: host: rely on port_mode to call musb_start()
USB: cp210x: add ID for Aruba Networks controllers
USB: mos7720: rename registers
USB: option: add 2020:4000 ID
He Kuang noticed that the trace event samples for arrays was broken:
"The output result of trace_foo_bar event in traceevent samples is
wrong. This problem can be reproduced as following:
(Build kernel with SAMPLE_TRACE_EVENTS=m)
$ insmod trace-events-sample.ko
$ echo 1 > /sys/kernel/debug/tracing/events/sample-trace/foo_bar/enable
$ cat /sys/kernel/debug/tracing/trace
event-sample-980 [000] .... 43.649559: foo_bar: foo hello 21 0x15
BIT1|BIT3|0x10 {0x1,0x6f6f6e53,0xff007970,0xffffffff} Snoopy
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
The array length is not right, should be {0x1}.
(ffffffff,ffffffff)
event-sample-980 [000] .... 44.653827: foo_bar: foo hello 22 0x16
BIT2|BIT3|0x10
{0x1,0x2,0x646e6147,0x666c61,0xffffffff,0xffffffff,0x750aeffe,0x7}
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
The array length is not right, should be {0x1,0x2}.
Gandalf (ffffffff,ffffffff)"
This was caused by an update to have __print_array()'s second parameter
be the count of items in the array and not the size of the array.
As there is already users of __print_array(), it can not change. But
the sample code can and we can also improve on the documentation about
__print_array() and __get_dynamic_array_len().
Link: http://lkml.kernel.org/r/1436839171-31527-2-git-send-email-hekuang@huawei.com
Fixes: ac01ce1410 ("tracing: Make ftrace_print_array_seq compute buf_len")
Reported-by: He Kuang <hekuang@huawei.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
There are two small fixes for HD-audio and USB LINE6, and the rest are
a few new quirks and device ID addition that are good enough to get
into 4.2.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=EgRm
-----END PGP SIGNATURE-----
Merge tag 'sound-4.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"There are two small fixes for HD-audio and USB LINE6, and the rest are
a few new quirks and device ID addition that are good enough to get
into 4.2"
* tag 'sound-4.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/realtek: Enable HP amp and mute LED on HP Folio 9480m [v3]
ALSA: line6: Fix -EBUSY error during active monitoring
ALSA: hda - Fix a wrong busy check in alt PCM open
ALSA: hda - add codec ID for Broxton display audio codec
ALSA: usb-audio: Add MIDI support for Steinberg MI2/MI4
hitting individual drivers and nothing else.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=mTd/
-----END PGP SIGNATURE-----
Merge tag 'gpio-v4.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"This is a first set of GPIO fixes for the v4.2 series, all hitting
individual drivers and nothing else (except for a documentation
oneliner. I intended to send a request earlier but life intervened)"
* tag 'gpio-v4.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: pca953x: fix nested irqs rescheduling
gpio: omap: prevent module from being unloaded while in use
gpio: max732x: Add missing dev reference to gpiochip
gpio/xilinx: Use correct address when setting initial values.
gpio: zynq: Fix problem with unbalanced pm_runtime_enable
gpio: omap: add missed spin_unlock_irqrestore in omap_gpio_irq_type
gpio: brcmstb: fix null ptr dereference in driver remove
gpio: Remove double "base" in comment
K2E EVM boot hangs because of missing serdes driver which is needed to bring up
PCIe on K2E. These couple of fixes makes the PCIE disabled on common default and
let the specific board DTS to enable it.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=BEOi
-----END PGP SIGNATURE-----
Merge tag 'keystone-dts-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone into fixes
Merge "ARM: Couple of dts fixes for v4.2-rcx" from Santosh Shilimkar:
Couple of DTS fixes 4.2-rcx for Keystone EVMs:
K2E EVM boot hangs because of missing serdes driver which is needed to bring up
PCIe on K2E. These couple of fixes makes the PCIE disabled on common default and
let the specific board DTS to enable it.
* tag 'keystone-dts-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone:
ARM: keystone: dts: rename pcie nodes to help override status
ARM: keystone: dts: fix dt bindings for PCIe
Signed-off-by: Olof Johansson <olof@lixom.net>
Pull drm fixes from Dave Airlie:
"Fixes all over the place.
The rockchip and imx fixes I missed while on holidays, so I've queued
them now which makes this a bit bigger.
The rest is misc amdgpu, radeon, i915 and armada.
I think the most important thing is the ioctl fix, we dropped the
avoid compat ball, so we get to add a compat wrapper.
There is also an i915 revert to avoid a regression with existing
userspace"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (43 commits)
drm/ttm: improve uncached page deallocation.
drm/ttm: fix uncached page deallocation to properly fill page pool v3.
drm/amdgpu/dce8: Re-set VBLANK interrupt state when enabling a CRTC
drm/radeon/ci: silence a harmless PCC warning
drm/amdgpu/cz: silence some dpm debug output
drm/amdgpu/cz: store the forced dpm level
drm/amdgpu/cz: unforce dpm levels before forcing to low/high
drm/amdgpu: remove bogus check in gfx8 rb setup
drm/amdgpu: set proper index/data pair for smc regs on CZ (v2)
drm/amdgpu: disable the IP module if early_init returns -ENOENT (v2)
drm/amdgpu: stop context leak in the error path
drm/amdgpu: validate the context id in the dependencies
drm/radeon: fix user ptr race condition
drm/radeon: Don't flush the GART TLB if rdev->gart.ptr == NULL
drm/radeon: add a dpm quirk for Sapphire Radeon R9 270X 2GB GDDR5
drm/armada: avoid saving the adjusted mode to crtc->mode
drm/armada: fix overlay when partially off-screen
drm/armada: convert overlay to use drm_plane_helper_check_update()
drm/armada: fix gem object free after failed prime import
drm/armada: fix incorrect overlay plane cleanup
...
Fengguang Wu reports that building ARM with !MMU results in the
following build error:
arch/arm/kernel/built-in.o: In function `__soft_restart':
>> :(.text+0x1624): undefined reference to `arch_virt_to_idmap'
Fix this by adding an appropriate IS_ENABLED(CONFIG_MMU) into the
__virt_to_idmap() inline function.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
We must invalidate the L1 cache before enabling coherency, otherwise
secondary CPUs can inject invalid cache lines into the coherent CPU
cluster, which could then be migrated to other CPUs. This fixes a
recent regression with SoCFPGA randomly failing to boot.
Fixes: 02b4e2756e ("ARM: v7 setup function should invalidate L1 cache")
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
nr_bitmaps member of mapping structure stores the number of already
allocated bitmaps and it is interpreted as loop iterator (it starts from
0 not from 1), so a comparison against number of possible bitmap
extensions should include this fact. This patch fixes this by changing
the extension failure condition. This issue has been introduced by
commit 4d852ef8c2 ("arm: dma-mapping: Add
support to extend DMA IOMMU mappings").
Reported-by: Hyungwon Hwang <human.hwang@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Hyungwon Hwang <human.hwang@samsung.com>
Cc: stable@vger.kernel.org # v3.15+
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
It's possible, albeit unlikely, that using the of_node here will
reference freed memory. Call of_node_put() after printing the
name to be safe.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This patch is to get correct physical address of the reset function for
PAE systems, which use aliased physical memory for booting.
See the "ARM: mm: Introduce virt_to_idmap() with an arch hook" for details.
Signed-off-by: Vitaly Andrianov <vitalya@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The RTNL is required to check for IR-relaxation conditions that allow
more channels to beacon. Export an RTNL locked version of reg_can_beacon
and use it where possible in AP/STA interface type flows, where
IR-relaxation may be applicable.
Fixes: 06f207fc54 ("cfg80211: change GO_CONCURRENT to IR_CONCURRENT for STA")
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Although mesh_rx_plink_frame() already checks that frames have enough
bytes for the action code plus another two bytes for capability/reason
code, it doesn't take into account that confirm frames also have an
additional two-byte aid. As a result, a corrupt frame could cause a
subsequent subtraction to wrap around to ill effect. Add another
check for this case.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
According to 802.11-2012 8.5.16.3.2 AID comes directly after the
capability bytes in mesh peering confirm frames. The existing
code, however, was adding a 2 byte offset to this location,
resulting in garbage data going out over the air. Remove the
offset to fix it.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
With a basic Linux userspace, the messages "Calling CRDA to update
world regulatory domain" appears 10 times after boot every second or
so, followed by a final "Exceeded CRDA call max attempts. Not calling
CRDA". For those of us not having the corresponding userspace parts,
having those messages repeatedly displayed at boot time is a bit
annoying, so this commit reduces their log level to pr_debug().
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
User visible:
- Fix misplaced check for HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT in
the auxtrace code, which made 'perf record' fail straight away
in some architectures, even when auxtrace wasn't involved. (Adrian Hunter)
Developer stuff:
- Really allow to specify custom CC, AR or LD (Alexey Brodkin)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=fP9H
-----END PGP SIGNATURE-----
Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/urgent fixes from Arnaldo Carvalho de Melo:
- Fix misplaced check for HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT in
the auxtrace code, which made 'perf record' fail straight away
in some architectures, even when auxtrace wasn't involved. (Adrian Hunter)
- Really allow to specify custom CC, AR or LD (Alexey Brodkin)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
It turns out to be rather tedious to test the NMI nesting code.
Make it easier: add a new CONFIG_DEBUG_ENTRY option that causes
the NMI handler to pre-emptively unmask NMIs.
With this option set, errors in the repeat_nmi logic or failures
to detect that we're in a nested NMI will result in quick panics
under perf (especially if multiple counters are running at high
frequency) instead of requiring an unusual workload that
generates page faults or breakpoints inside NMIs.
I called it CONFIG_DEBUG_ENTRY instead of CONFIG_DEBUG_NMI_ENTRY
because I want to add new non-NMI checks elsewhere in the entry
code in the future, and I'd rather not add too many new config
options or add this option and then immediately rename it.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Currently, "NMI executing" is one the first time an outermost
NMI hits repeat_nmi and zero thereafter. Change it to be zero
each time for consistency.
This is intended to help NMI handling fail harder if it's buggy.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Replace LEA; MOV with an equivalent SUB. This saves one
instruction.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
We have a tricky bug in the nested NMI code: if we see RSP
pointing to the NMI stack on NMI entry from kernel mode, we
assume that we are executing a nested NMI.
This isn't quite true. A malicious userspace program can point
RSP at the NMI stack, issue SYSCALL, and arrange for an NMI to
happen while RSP is still pointing at the NMI stack.
Fix it with a sneaky trick. Set DF in the region of code that
the RSP check is intended to detect. IRET will clear DF
atomically.
( Note: other than paravirt, there's little need for all this
complexity. We could check RIP instead of RSP. )
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Check the repeat_nmi .. end_repeat_nmi special case first. The
next patch will rework the RSP check and, as a side effect, the
RSP check will no longer detect repeat_nmi .. end_repeat_nmi, so
we'll need this ordering of the checks.
Note: this is more subtle than it appears. The check for
repeat_nmi .. end_repeat_nmi jumps straight out of the NMI code
instead of adjusting the "iret" frame to force a repeat. This
is necessary, because the code between repeat_nmi and
end_repeat_nmi sets "NMI executing" and then writes to the
"iret" frame itself. If a nested NMI comes in and modifies the
"iret" frame while repeat_nmi is also modifying it, we'll end up
with garbage. The old code got this right, as does the new
code, but the new code is a bit more explicit.
If we were to move the check right after the "NMI executing"
check, then we'd get it wrong and have random crashes.
( Because the "NMI executing" check would jump to the code that would
modify the "iret" frame without checking if the interrupted NMI was
currently modifying it. )
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
I found the nested NMI documentation to be difficult to follow.
Improve the comments.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Returning to userspace is tricky: IRET can fail, and ESPFIX can
rearrange the stack prior to IRET.
The NMI nesting fixup relies on a precise stack layout and
atomic IRET. Rather than trying to teach the NMI nesting fixup
to handle ESPFIX and failed IRET, punt: run NMIs that came from
user mode on the normal kernel stack.
This will make some nested NMIs visible to C code, but the C
code is okay with that.
As a side effect, this should speed up perf: it eliminates an
RDMSR when NMIs come from user mode.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Reviewed-by: Borislav Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Now that do_nmi saves CR2, we don't need to save it in asm.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Borislav Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
32-bit kernels handle nested NMIs in C. Enable the exact same
handling on 64-bit kernels as well. This isn't currently
necessary, but it will become necessary once the asm code starts
allowing limited nesting.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
The GICv3 ITS architecture allows a given [DevID, EventID] pair to be
translated to a [LPI, Collection] pair, where DevID is the device writing
the MSI, EventID is the payload being written, LPI is the actual
interrupt number, and Collection is roughly equivalent to a target CPU.
Each LPI can be mapped to a separate collection, but the ITS driver
insists on maintaining the collection on a device basis, instead of doing
it on a per interrupt basis.
This is obviously flawed, and this patch fixes it by adding a per interrupt
index that indicates which collection number is in use.
Reported-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: <linux-arm-kernel@lists.infradead.org>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: stable@vger.kernel.org # 4.1, 4.0
Link: http://lkml.kernel.org/r/1437126402-11677-1-git-send-email-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
The resend mechanism happily calls the interrupt handler of interrupts
which are marked IRQ_NESTED_THREAD from softirq context. This can
result in crashes because the interrupt handler is not the proper way
to invoke the device handlers. They must be invoked via
handle_nested_irq.
Prevent the resend even if the interrupt has no valid parent irq
set. Its better to have a lost interrupt than a crashing machine.
Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
If the hardware is unregistered while interfaces are up, mac80211 will
unregister all interfaces, which in turns causes mac80211 to be called
again to remove them all from the driver and eventually shut down the
hardware.
During this shutdown, however, it's currently already unsafe to iterate
the list of interfaces atomically, as the list is manipulated in an
unsafe manner. This puts an undue burden on the driver - it must stop
all its activities before calling ieee80211_unregister_hw(), while in
the normal stop path it can do all cleanup in the stop method. If, for
example, it's using the iteration during RX for some reason, it would
have to stop RX before unregistering to avoid crashes.
Fix this problem by closing all interfaces before unregistering them.
This will cause the driver stop to have completed before we manipulate
the interface list, and after the driver is stopped *and* has called
ieee80211_unregister_hw() it really musn't be iterating any more as
the memory will be freed as well.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
If for any reason we're in the middle of PS-polling or awake after
TX due to dynamic powersave while going to suspend, go back to save
power. This might cause a response frame to get lost, but since we
can't really wait for it while going to suspend that's still better
than not enabling powersave which would cause higher power usage
during (and possibly even after) suspend.
Note that this really only affects the very few drivers that use
the powersave implementation in mac80211.
Signed-off-by: Chaitanya T K <chaitanya.mgit@gmail.com>
[rewrite misleading commit log]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
When acting as AP and a PS-Poll frame is received
associated station is marked as one in a Service
Period. This state is kept until Tx status for
released frame is reported. While a station is in
Service Period PS-Poll frames are ignored.
However if PS-Poll was received during A-MPDU
teardown it was possible to have the to-be
released frame re-queued back to pending queue.
In such case the frame was stripped of 2 important
flags:
(a) IEEE80211_TX_CTL_NO_PS_BUFFER
(b) IEEE80211_TX_STATUS_EOSP
Stripping of (a) led to the frame that was to be
released to be queued back to ps_tx_buf queue. If
station remained to use only PS-Poll frames the
re-queued frame (and new ones) was never actually
transmitted because mac80211 would ignore
subsequent PS-Poll frames due to station being in
Service Period. There was nothing left to clear
the Service Period bit (no xmit -> no tx status ->
no SP end), i.e. the AP would have the station
stuck in Service Period. Beacon TIM would
repeatedly prompt station to poll for frames but
it would get none.
Once (a) is not stripped (b) becomes important
because it's the main condition to clear the
Service Period bit of the station when Tx status
for the released frame is reported back.
This problem was observed with ath9k acting as P2P
GO in some testing scenarios but isn't limited to
it. AP operation with mac80211 based Tx A-MPDU
control combined with clients using PS-Poll frames
is subject to this race.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
If we don't do this, and we then fail to recreate the debugfs
directory during a mode change, then we will fail later trying
to add stations to this now bogus directory:
BUG: unable to handle kernel NULL pointer dereference at 0000006c
IP: [<c0a92202>] mutex_lock+0x12/0x30
Call Trace:
[<c0678ab4>] start_creating+0x44/0xc0
[<c0679203>] debugfs_create_dir+0x13/0xf0
[<f8a938ae>] ieee80211_sta_debugfs_add+0x6e/0x490 [mac80211]
Cc: stable@kernel.org
Signed-off-by: Tom Hughes <tom@compton.nu>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* fix a crash in time events
* fix a crash in PCIe transport
* fix BT Coex code that prevented association on certain
devices (3160).
* revert the new RBD allocation model because it introduced
a bug when running on weak VM setups.
* a new device IDs
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=TLrS
-----END PGP SIGNATURE-----
Merge tag 'iwlwifi-for-kalle-2015-06-12' of https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes
* bug fixes specific for 8000 series
* fix a crash in time events
* fix a crash in PCIe transport
* fix BT Coex code that prevented association on certain
devices (3160).
* revert the new RBD allocation model because it introduced
a bug when running on weak VM setups.
* a new device IDs
Calls to set_memory_wb() incure heavy TLB flush and IPI cost. To
minimize those wait until pool grow beyond batch size before
draining the pool.
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Reviewed-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-and-Tested-by: Michel Dänzer <michel@daenzer.net>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Current code never allowed the page pool to actualy fill in anyway.
This fix it, so that we only start freeing page from the pool when
we go over the pool size.
Changed since v1:
- Move the page batching optimization to its separate patch.
Changed since v2:
- Do not remove code part of the batching optimization with
this patch.
- Better commit message.
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Reviewed-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Reviewed-and-Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Since 9a2c1c3b91 ("pinctrl: samsung: Allow grouping multiple
pinmux/pinconf nodes") the defines for GPIO group and function names are
not used anywhere in the driver.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Inspired-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
First, dma_sync_single_for_cpu() shouldn't have been called in the first place
(it's a streaming DMA API), dma_unmap_single() should have been called instead.
Second, dma_unmap_single() call after handing the buffer to napi_gro_receive()
makes little sense. Moreover desc->dptr might not be valid at this point.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- Fix a recently introduced issue in the cpufreq policy object
reinitialization that leads to CPU offline/online breakage
(Viresh Kumar).
- Make it possible to access frequency tables of offline CPUs
which is needed by thermal management code among other things
(Viresh Kumar).
- Fix an ACPI resource management regression introduced during
the 4.0 cycle that may cause incorrect resource validation
results to appear in 32-bit x86 kernels due to silent truncation
of 64-bit values to 32-bit (Jiang Liu).
- Fix up an RCU-related lockdep complaint about suspicious RCU
usage in idle caused by using a suspend tracepoint in the
core suspend-to-idle code (Rafael J Wysocki).
/
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=BDs+
-----END PGP SIGNATURE-----
Merge tag 'pm+acpi-4.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management and ACPI fixes from Rafael Wysocki:
"These fix two bugs in the cpufreq core (including one recent
regression), fix a 4.0 PCI regression related to the ACPI resources
management and quieten an RCU-related lockdep complaint about a
tracepoint in the suspend-to-idle code.
Specifics:
- Fix a recently introduced issue in the cpufreq policy object
reinitialization that leads to CPU offline/online breakage (Viresh
Kumar)
- Make it possible to access frequency tables of offline CPUs which
is needed by thermal management code among other things (Viresh
Kumar)
- Fix an ACPI resource management regression introduced during the
4.0 cycle that may cause incorrect resource validation results to
appear in 32-bit x86 kernels due to silent truncation of 64-bit
values to 32-bit (Jiang Liu)
- Fix up an RCU-related lockdep complaint about suspicious RCU usage
in idle caused by using a suspend tracepoint in the core suspend-
to-idle code (Rafael J Wysocki)"
* tag 'pm+acpi-4.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / PCI: Fix regressions caused by resource_size_t overflow with 32-bit kernel
cpufreq: Allow freq_table to be obtained for offline CPUs
cpufreq: Initialize the governor again while restoring policy
suspend-to-idle: Prevent RCU from complaining about tick_freeze()
