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Pull lockdep fix from Ingo Molnar:
"Fix a possible NULL dereference for the (rare) case when a task
doesn't have ->xhlocks space allocated due to kmalloc() OOM-ing"
* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking/lockdep: Fix possible NULL deref
Pull irq fixes from Ingo Molnar:
"Two fixes: use bool type consistently, plus a irq_matrix_available()
bugfix"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqdesc: Use bool return type instead of int
genirq/matrix: Fix the precedence fix for real
Pull EFI fixes from Ingo Molnar:
"Misc fixes: world-readable pointer removal from sysfs, a ESRT kfree()
bug fix and a comment update"
* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
efi: Add comment to avoid future expanding of sysfs systab
efi/esrt: Use memunmap() instead of kfree() to free the remapping
efi: Move some sysfs files to be read-only by root
Pull core fixes from Ingo Molnar:
"Two fixes:
- objtool cross-build fixes
- removal of an obsolete CPU-hotplug state name from comments"
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool: Fix 64-bit build on 32-bit host
cpu/hotplug: Fix state name in takedown_cpu() comment
The new ORC unwinder breaks the build of a 64-bit kernel on a 32-bit
host. Building the kernel on a i386 or x32 host fails with:
orc_dump.c: In function 'orc_dump':
orc_dump.c:105:26: error: passing argument 2 of 'elf_getshdrnum' from incompatible pointer type [-Werror=incompatible-pointer-types]
if (elf_getshdrnum(elf, &nr_sections)) {
^
In file included from /usr/local/include/gelf.h:32:0,
from elf.h:22,
from warn.h:26,
from orc_dump.c:20:
/usr/local/include/libelf.h:304:12: note: expected 'size_t * {aka unsigned int *}' but argument is of type 'long unsigned int *'
extern int elf_getshdrnum (Elf *__elf, size_t *__dst);
^~~~~~~~~~~~~~
orc_dump.c:190:17: error: format '%lx' expects argument of type 'long unsigned int', but argument 3 has type 'Elf64_Sxword {aka long long int}' [-Werror=format=]
printf("%s+%lx:", name, rela.r_addend);
~~^ ~~~~~~~~~~~~~
%llx
Fix the build failure.
Another problem is that if the user specifies HOSTCC or HOSTLD
variables, they are ignored in the objtool makefile. Change the
Makefile to respect these variables.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sven Joachim <svenjoac@gmx.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: 627fce14809b ("objtool: Add ORC unwind table generation")
Link: http://lkml.kernel.org/r/19f0e64d8e07e30a7b307cd010eb780c404fe08d.1512252895.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
All fixes are small and for stable:
- A PCM ioctl race fix
- Yet another USB-audio hardening for malicious descriptors
- Realtek ALC257 codec support
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Merge tag 'sound-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"All fixes are small and for stable:
- a PCM ioctl race fix
- yet another USB-audio hardening for malicious descriptors
- Realtek ALC257 codec support"
* tag 'sound-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: pcm: prevent UAF in snd_pcm_info
ALSA: hda/realtek - New codec support for ALC257
ALSA: usb-audio: Add check return value for usb_string()
ALSA: usb-audio: Fix out-of-bound error
ALSA: seq: Remove spurious WARN_ON() at timer check
/sys/firmware/efi/systab shows several different values, it breaks sysfs
one file one value design. But since there are already userspace tools
depend on it eg. kexec-tools so add code comment to alert future expanding
of this file.
Signed-off-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/20171206095010.24170-4-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
The remapping result of memremap() should be freed with memunmap(), not kfree().
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: <stable@vger.kernel.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Link: http://lkml.kernel.org/r/20171206095010.24170-3-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Thanks to the scripts/leaking_addresses.pl script, it was found that
some EFI values should not be readable by non-root users.
So make them root-only, and to do that, add a __ATTR_RO_MODE() macro to
make this easier, and use it in other places at the same time.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Tested-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-efi@vger.kernel.org
Cc: stable <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20171206095010.24170-2-ard.biesheuvel@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
CPUHP_AP_SCHED_MIGRATE_DYING doesn't exist, it looks like this was
supposed to refer to CPUHP_AP_SCHED_STARTING's teardown callback,
i.e. sched_cpu_dying().
Signed-off-by: Brendan Jackman <brendan.jackman@arm.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Perret <quentin.perret@arm.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20171206105911.28093-1-brendan.jackman@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Things like this will probably keep showing up for other architectures
and other special cases.
I actually thought we already used %lx for this, and that is indeed
_historically_ the case, but we moved to %p when merging the 32-bit and
64-bit cases as a convenient way to get the formatting right (ie
automatically picking "%08lx" vs "%016lx" based on register size).
So just turn this %p into %px.
Reported-by: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The refcount_t protection on x86 was not intended to use the stricter
GPL export. This adjusts the linkage again to avoid a regression in
the availability of the refcount API.
Reported-by: Dave Airlie <airlied@gmail.com>
Fixes: 7a46ec0e2f48 ("locking/refcounts, x86/asm: Implement fast refcount overflow protection")
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When the device descriptor is closed, the `substream->runtime` pointer
is freed. But another thread may be in the ioctl handler, case
SNDRV_CTL_IOCTL_PCM_INFO. This case calls snd_pcm_info_user() which
calls snd_pcm_info() which accesses the now freed `substream->runtime`.
Note: this fixes CVE-2017-0861
Signed-off-by: Robb Glasser <rglasser@google.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
We have a bunch of fixes for aacraid, a set of coherency fixes that
only affect non-coherent platforms and one coccinelle detected null
check after use.
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"A bunch of fixes for aacraid, a set of coherency fixes that only
affect non-coherent platforms and one coccinelle detected null check
after use"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: libsas: align sata_device's rps_resp on a cacheline
scsi: use dma_get_cache_alignment() as minimum DMA alignment
scsi: dma-mapping: always provide dma_get_cache_alignment
scsi: ufs: ufshcd: fix potential NULL pointer dereference in ufshcd_config_vreg
scsi: aacraid: Prevent crash in case of free interrupt during scsi EH path
scsi: aacraid: Perform initialization reset only once
scsi: aacraid: Check for PCI state of device in a generic way
fix for a regression in iWarp if SELinux is enabled, a fix for a compilation
regression introduced in this merge window, and one obscure kconfig
combination that oops's the kernel.
For drivers, we have hns fixes needed to make their devices work on certain
ARM IOMMU configurations, a stack data leak for hfi1, and various testing
discovered -rc bug fixes for i40iw.
This cycle we pushed back on the driver maintainers to have better commit
messages for -rc material.
You may need to pull my latest PGP key from the GPG key servers for this, I am
not certain if the subkey update will make it to kernel.org's WKD before you
need it.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma fixes from Jason Gunthorpe:
"Here is the first rc pull request for RDMA. This includes an important
core fix for a regression in iWarp if SELinux is enabled, a fix for a
compilation regression introduced in this merge window, and one
obscure kconfig combination that oops's the kernel.
For drivers, we have hns fixes needed to make their devices work on
certain ARM IOMMU configurations, a stack data leak for hfi1, and
various testing discovered -rc bug fixes for i40iw.
This cycle we pushed back on the driver maintainers to have better
commit messages for -rc material"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
IB/core: Only enforce security for InfiniBand
RDMA/hns: Get rid of page operation after dma_alloc_coherent
RDMA/hns: Get rid of virt_to_page and vmap calls after dma_alloc_coherent
RDMA/hns: Fix the issue of IOVA not page continuous in hip08
IB/core: Init subsys if compiled to vmlinuz-core
RDMA/cma: Make sure that PSN is not over max allowed
i40iw: Notify user of established connection after QP in RTS
i40iw: Move MPA request event for loopback after connect
i40iw: Correct ARP index mask
i40iw: Do not free sqbuf when event is I40IW_TIMER_TYPE_CLOSE
i40iw: Allocate a sdbuf per CQP WQE
IB: INFINIBAND should depend on HAS_DMA
IB/hfi1: Initialize bth1 in 16B rc ack builder
Here are some small misc driver fixes for 4.15-rc3 to resolve reported
issues. Specifically these are:
- binder fix for a memory leak
- vpd driver fixes for a number of reported problems
- hyperv driver fix for memory accesses where it shouldn't be.
All of these have been in linux-next for a while. There's also one more
MAINTAINERS file update that came in today to get the Android
developer's emails correct, which is also in this pull request, that was
not in linux-next, but should not be an issue.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc fixes from Greg KH:
"Here are some small misc driver fixes for 4.15-rc3 to resolve reported
issues. Specifically these are:
- binder fix for a memory leak
- vpd driver fixes for a number of reported problems
- hyperv driver fix for memory accesses where it shouldn't be.
All of these have been in linux-next for a while. There's also one
more MAINTAINERS file update that came in today to get the Android
developer's emails correct, which is also in this pull request, that
was not in linux-next, but should not be an issue"
* tag 'char-misc-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
MAINTAINERS: update Android driver maintainers.
firmware: vpd: Fix platform driver and device registration/unregistration
firmware: vpd: Tie firmware kobject to device lifetime
firmware: vpd: Destroy vpd sections in remove function
hv: kvp: Avoid reading past allocated blocks from KVP file
Drivers: hv: vmbus: Fix a rescind issue
ANDROID: binder: fix transaction leak.
Here are 3 small fixes for some reported issues:
- a debugfs build error that lots of people have reported
- a Kconfig help text cleanup now that the firmware is not in
the kernel tree
- a isa bus bug fix for a reported issue that has been there
since 2.6.18.
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH:
"Here are 3 small fixes for some reported issues:
- a debugfs build error that lots of people have reported
- a Kconfig help text cleanup now that the firmware is not in the
kernel tree
- an ISA bus bug fix for a reported issue that has been there since
2.6.18.
All of these have been in linux-next with no reported issues"
* tag 'driver-core-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
firmware: cleanup FIRMWARE_IN_KERNEL message
isa: Prevent NULL dereference in isa_bus driver callbacks
debugfs: fix debugfs_real_fops() build error
Here are a number of small staging and iio driver fixes for reported
issues for 4.15-rc3. Nothing major here, the majority is IIO issues,
like normal, but there are also some small bugfixes for a few staging
drivers as well.
Full details are in the shortlog.
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging and iio driver fixes from Greg KH:
"Here are a number of small staging and iio driver fixes for reported
issues for 4.15-rc3. Nothing major here, the majority is IIO issues,
like normal, but there are also some small bugfixes for a few staging
drivers as well.
Full details are in the shortlog.
All of these have been in linux-next for a while with no reported
issues"
* tag 'staging-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
iio: stm32: fix adc/trigger link error
iio: health: max30102: Temperature should be in milli Celsius
iio: fix kernel-doc build errors
iio: adc: meson-saradc: Meson8 and Meson8b do not have REG11 and REG13
iio: adc: meson-saradc: initialize the bandgap correctly on older SoCs
iio: adc: meson-saradc: fix the bit_idx of the adc_en clock
iio: proximity: sx9500: Assign interrupt from GpioIo()
iio: adc: cpcap: fix incorrect validation
staging: octeon-usb: use __delay() instead of cvmx_wait()
staging: rtl8188eu: Fix incorrect response to SIOCGIWESSID
staging: ccree: fix leak of import() after init()
staging: comedi: ni_atmio: fix license warning.
Here are some small serdev and serial fixes for 4.15-rc3. They resolve
some reported problems:
- a number of serdev fixes to resolve crashes
- MIPS build fixes for their serial port
- a new 8250 device id
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver fixes from Greg KH:
"Here are some small serdev and serial fixes for 4.15-rc3. They resolve
some reported problems:
- a number of serdev fixes to resolve crashes
- MIPS build fixes for their serial port
- a new 8250 device id
All of these have been in linux-next for a while with no reported
issues"
* tag 'tty-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
MIPS: Add custom serial.h with BASE_BAUD override for generic kernel
serdev: ttyport: fix tty locking in close
serdev: ttyport: fix NULL-deref on hangup
serdev: fix receive_buf return value when no callback
serdev: ttyport: add missing receive_buf sanity checks
serial: 8250_early: Only set divisor if valid clk & baud
serial: 8250_pci: Add Amazon PCI serial device ID
Here are a few minor USB fixes for 4.15-rc3.
The largest here is the Kconfig text and configuration changes for the
USB TypeC build options that you reported during the -rc1 merge window.
The others are all just small fixes for reported issues, as well as some
new device ids.
The most "interesting" of anything here is the usbip fixes as it seems
lots of people are starting to pay attention to that driver at the
moment. These fixes should resolve all of the reported problems as of
now.
Of course there are the usual xhci and gadget fixes as well, can't go a
pull request without those...
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a few minor USB fixes for 4.15-rc3.
The largest here is the Kconfig text and configuration changes for the
USB TypeC build options that you reported during the -rc1 merge
window. The others are all just small fixes for reported issues, as
well as some new device ids.
The most "interesting" of anything here is the usbip fixes as it seems
lots of people are starting to pay attention to that driver at the
moment. These fixes should resolve all of the reported problems as of
now.
Of course there are the usual xhci and gadget fixes as well, can't go
a pull request without those...
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (22 commits)
usb: xhci: fix panic in xhci_free_virt_devices_depth_first
xhci: Don't show incorrect WARN message about events for empty rings
usbip: fix usbip attach to find a port that matches the requested speed
usbip: Fix USB device hang due to wrong enabling of scatter-gather
uas: Always apply US_FL_NO_ATA_1X quirk to Seagate devices
usb: quirks: Add no-lpm quirk for KY-688 USB 3.1 Type-C Hub
usb: build drivers/usb/common/ when USB_SUPPORT is set
usb: hub: Cycle HUB power when initialization fails
USB: core: Add type-specific length check of BOS descriptors
usb: host: fix incorrect updating of offset
USB: ulpi: fix bus-node lookup
USB: usbfs: Filter flags passed in from user space
usb: add user selectable option for the whole USB Type-C Support
usb: f_fs: Force Reserved1=1 in OS_DESC_EXT_COMPAT
usb: gadget: core: Fix ->udc_set_speed() speed handling
usb: gadget: allow to enable legacy drivers without USB_ETH
usb: gadget: udc: renesas_usb3: fix number of the pipes
usb: gadget: don't dereference g until after it has been null checked
USB: serial: usb_debug: add new USB device id
usb: bdc: fix platform_no_drv_owner.cocci warnings
...
- Fix the UART2 RTS pin mode on Intel Denverton.
- Fix the direction_output() behaviour on the Armada 37xx.
- Fix the groups selection per-SoC on the Gemini.
- Fix the interrupt pin bank on the Sunxi A80.
- Fix the UART mux on the Sunxi A64.
- Disable the strict mode on the Sunxi H5 driver.
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Merge tag 'pinctrl-v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"As with GPIO not much action in pin control. All are driver fixes:
- fix the UART2 RTS pin mode on Intel Denverton
- fix the direction_output() behaviour on the Armada 37xx
- fix the groups selection per-SoC on the Gemini
- fix the interrupt pin bank on the Sunxi A80
- fix the UART mux on the Sunxi A64
- disable the strict mode on the Sunxi H5 driver"
* tag 'pinctrl-v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: sunxi: Disable strict mode for H5 driver
pinctrl: sunxi: Fix A64 UART mux value
pinctrl: sunxi: Fix A80 interrupt pin bank
pinctrl: gemini: Fix usage of 3512 groups
pinctrl: armada-37xx: Fix direction_output() callback behavior
pinctrl: denverton: Fix UART2 RTS pin mode
- Fix a crash in the 74x164 driver
- Fix IRQ banks in the DaVinci driver
- Fix the vendor prefix in the PCA953x driver
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Merge tag 'gpio-v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Three small fixes for GPIO. Not much, I'm surprised by the silence in
my subsystems. All driver fixes:
- fix a crash in the 74x164 driver
- fix IRQ banks in the DaVinci driver
- fix the vendor prefix in the PCA953x driver"
* tag 'gpio-v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: pca953x: fix vendor prefix for PCA9654
gpio: davinci: Assign first bank regs for unbanked case
gpio: 74x164: Fix crash during .remove()
Geert Uytterhoeven reported a NFS oops, and pointed out that some of the
numbers were hashed and useless.
We could just turn them from '%p' into '%px', but those numbers are
really just legacy, and useless even when not hashed.
So just remove them entirely.
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add new support for ALC257 codec.
[ It's supposed to be almost equivalent with other ALC25x variants,
just adding another type and id -- tiwai ]
Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
a problem with the new warning mode: it can break the build when confronted
with a source file containing malformed kerneldoc comments.
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Merge tag 'docs-4.15-fixes' of git://git.lwn.net/linux
Pull documentation fixes from Jonathan Corbet:
"A handful of documentation fixes.
The most significant of these addresses a problem with the new warning
mode: it can break the build when confronted with a source file
containing malformed kerneldoc comments"
* tag 'docs-4.15-fixes' of git://git.lwn.net/linux:
Documentation: fix docs build error after source file removed
scsi: documentation: Fix case of 'scsi_device' struct mention(s)
genericirq.rst: Remove :c:func:`...` in code blocks
dmaengine: doc : Fix warning "Title underline too short" while make xmldocs
scripts/kernel-doc: Don't fail with status != 0 if error encountered with -none
The irq_balancing_disabled and irq_is_percpu{,_devid} functions are
clearly intended to return bool like the functions in
kernel/irq/settings.h, but actually return an int containing a masked
value of desc->status_use_accessors. This can lead to subtle breakage
if, for example, the return value is subsequently truncated when
assigned to a narrower type.
As Linus points out:
| In particular, what can (and _has_ happened) is that people end up
| using these functions that return true or false, and they assign the
| result to something like a bitfield (or a char) or whatever.
|
| And the code looks *obviously* correct, when you have things like
|
| dev->percpu = irq_is_percpu_devid(dev->irq);
|
| and that "percpu" thing is just one status bit among many. It may even
| *work*, because maybe that "percpu" flag ends up not being all that
| important, or it just happens to never be set on the particular
| hardware that people end up testing.
|
| But while it looks obviously correct, and might even work, it's really
| fundamentally broken. Because that "true or false" function didn't
| actually return 0/1, it returned 0 or 0x20000.
|
| And 0x20000 may not fit in a bitmask or a "char" or whatever.
Fix the problem by consistently using bool as the return type for these
functions.
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: marc.zyngier@arm.com
Link: https://lkml.kernel.org/r/1512142179-24616-1-git-send-email-will.deacon@arm.com
The previous commit which made the operator precedence in
irq_matrix_available() explicit made the implicit brokenness explicitely
wrong. It was wrong in the original commit already. The overworked
maintainer did not notice it either when merging the patch.
Replace the confusing '?' construct by a simple and obvious if ().
Fixes: 75f1133873d6 ("genirq/matrix: Make - vs ?: Precedence explicit")
Reported-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Kees Cook <keescook@chromium.org>
A couple of bugfixes that just became ready.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio fixes from Michael Tsirkin:
"virtio and qemu bugfixes
A couple of bugfixes that just became ready"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
virtio_balloon: fix increment of vb->num_pfns in fill_balloon()
virtio: release virtio index when fail to device_register
fw_cfg: fix driver remove
Pull networking fixes from David Miller:
1) Various TCP control block fixes, including one that crashes with
SELinux, from David Ahern and Eric Dumazet.
2) Fix ACK generation in rxrpc, from David Howells.
3) ipvlan doesn't set the mark properly in the ipv4 route lookup key,
from Gao Feng.
4) SIT configuration doesn't take on the frag_off ipv4 field
configuration properly, fix from Hangbin Liu.
5) TSO can fail after device down/up on stmmac, fix from Lars Persson.
6) Various bpftool fixes (mostly in JSON handling) from Quentin Monnet.
7) Various SKB leak fixes in vhost/tun/tap (mostly observed as
performance problems). From Wei Xu.
8) mvpps's TX descriptors were not zero initialized, from Yan Markman.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (57 commits)
tcp: use IPCB instead of TCP_SKB_CB in inet_exact_dif_match()
tcp: add tcp_v4_fill_cb()/tcp_v4_restore_cb()
rxrpc: Fix the MAINTAINERS record
rxrpc: Use correct netns source in rxrpc_release_sock()
liquidio: fix incorrect indentation of assignment statement
stmmac: reset last TSO segment size after device open
ipvlan: Add the skb->mark as flow4's member to lookup route
s390/qeth: build max size GSO skbs on L2 devices
s390/qeth: fix GSO throughput regression
s390/qeth: fix thinko in IPv4 multicast address tracking
tap: free skb if flags error
tun: free skb in early errors
vhost: fix skb leak in handle_rx()
bnxt_en: Fix a variable scoping in bnxt_hwrm_do_send_msg()
bnxt_en: fix dst/src fid for vxlan encap/decap actions
bnxt_en: wildcard smac while creating tunnel decap filter
bnxt_en: Need to unconditionally shut down RoCE in bnxt_shutdown
phylink: ensure we take the link down when phylink_stop() is called
sfp: warn about modules requiring address change sequence
sfp: improve RX_LOS handling
...
The chip family of TILEPro and TILE-Gx was developed by Tilera, which
was eventually acquired by Mellanox. The tile architecture was added to
the kernel in 2010 and first appeared in 2.6.36.
Now at Mellanox we are developing new chips based on the ARM64
architecture; our last TILE-Gx chip (the Gx72) was released in 2013, and
our customers using tile architecture products are not, as far as we
know, looking to upgrade to newer kernel releases. In the absence of
someone in the community stepping up to take over maintainership, this
commit marks the architecture as orphaned.
Cc: Chris Metcalf <metcalf@alum.mit.edu>
Signed-off-by: Chris Metcalf <cmetcalf@mellanox.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
snd_usb_copy_string_desc() returns zero if usb_string() fails.
In case of failure, we need to check the snd_usb_copy_string_desc()'s
return value and add an exception case
Signed-off-by: Jaejoong Kim <climbbb.kim@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The snd_usb_copy_string_desc() retrieves the usb string corresponding to
the index number through the usb_string(). The problem is that the
usb_string() returns the length of the string (>= 0) when successful, but
it can also return a negative value about the error case or status of
usb_control_msg().
If iClockSource is '0' as shown below, usb_string() will returns -EINVAL.
This will result in '0' being inserted into buf[-22], and the following
KASAN out-of-bound error message will be output.
AudioControl Interface Descriptor:
bLength 8
bDescriptorType 36
bDescriptorSubtype 10 (CLOCK_SOURCE)
bClockID 1
bmAttributes 0x07 Internal programmable Clock (synced to SOF)
bmControls 0x07
Clock Frequency Control (read/write)
Clock Validity Control (read-only)
bAssocTerminal 0
iClockSource 0
To fix it, check usb_string()'return value and bail out.
==================================================================
BUG: KASAN: stack-out-of-bounds in parse_audio_unit+0x1327/0x1960 [snd_usb_audio]
Write of size 1 at addr ffff88007e66735a by task systemd-udevd/18376
CPU: 0 PID: 18376 Comm: systemd-udevd Not tainted 4.13.0+ #3
Hardware name: LG Electronics 15N540-RFLGL/White Tip Mountain, BIOS 15N5
Call Trace:
dump_stack+0x63/0x8d
print_address_description+0x70/0x290
? parse_audio_unit+0x1327/0x1960 [snd_usb_audio]
kasan_report+0x265/0x350
__asan_store1+0x4a/0x50
parse_audio_unit+0x1327/0x1960 [snd_usb_audio]
? save_stack+0xb5/0xd0
? save_stack_trace+0x1b/0x20
? save_stack+0x46/0xd0
? kasan_kmalloc+0xad/0xe0
? kmem_cache_alloc_trace+0xff/0x230
? snd_usb_create_mixer+0xb0/0x4b0 [snd_usb_audio]
? usb_audio_probe+0x4de/0xf40 [snd_usb_audio]
? usb_probe_interface+0x1f5/0x440
? driver_probe_device+0x3ed/0x660
? build_feature_ctl+0xb10/0xb10 [snd_usb_audio]
? save_stack_trace+0x1b/0x20
? init_object+0x69/0xa0
? snd_usb_find_csint_desc+0xa8/0xf0 [snd_usb_audio]
snd_usb_mixer_controls+0x1dc/0x370 [snd_usb_audio]
? build_audio_procunit+0x890/0x890 [snd_usb_audio]
? snd_usb_create_mixer+0xb0/0x4b0 [snd_usb_audio]
? kmem_cache_alloc_trace+0xff/0x230
? usb_ifnum_to_if+0xbd/0xf0
snd_usb_create_mixer+0x25b/0x4b0 [snd_usb_audio]
? snd_usb_create_stream+0x255/0x2c0 [snd_usb_audio]
usb_audio_probe+0x4de/0xf40 [snd_usb_audio]
? snd_usb_autosuspend.part.7+0x30/0x30 [snd_usb_audio]
? __pm_runtime_idle+0x90/0x90
? kernfs_activate+0xa6/0xc0
? usb_match_one_id_intf+0xdc/0x130
? __pm_runtime_set_status+0x2d4/0x450
usb_probe_interface+0x1f5/0x440
Cc: <stable@vger.kernel.org>
Signed-off-by: Jaejoong Kim <climbbb.kim@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The pci/htirq.c file was removed so remove it from the documentation
file also.
Error: Cannot open file ../drivers/pci/htirq.c
WARNING: kernel-doc '../scripts/kernel-doc -rst -enable-lineno -export ../drivers/pci/htirq.c' failed with return code 2
Fixes: fd2fa6c18b72 ("x86/PCI: Remove unused HyperTransport interrupt support")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Daniel Borkmann says:
====================
pull-request: bpf 2017-12-02
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Fix a compilation warning in xdp redirect tracepoint due to
missing bpf.h include that pulls in struct bpf_map, from Xie.
2) Limit the maximum number of attachable BPF progs for a given
perf event as long as uabi is not frozen yet. The hard upper
limit is now 64 and therefore the same as with BPF multi-prog
for cgroups. Also add related error checking for the sample
BPF loader when enabling and attaching to the perf event, from
Yonghong.
3) Specifically set the RLIMIT_MEMLOCK for the test_verifier_log
case, so that the test case can always pass and not fail in
some environments due to too low default limit, also from
Yonghong.
4) Fix up a missing license header comment for kernel/bpf/offload.c,
from Jakub.
5) Several fixes for bpftool, among others a crash on incorrect
arguments when json output is used, error message handling
fixes on unknown options and proper destruction of json writer
for some exit cases, all from Quentin.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet says:
====================
tcp: add tcp_v4_fill_cb()/tcp_v4_restore_cb()
James Morris reported kernel stack corruption bug that
we tracked back to commit 971f10eca186 ("tcp: better TCP_SKB_CB
layout to reduce cache line misses")
First patch needs to be backported to kernels >= 3.18,
while second patch needs to be backported to kernels >= 4.9, since
this was the time when inet_exact_dif_match appeared.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
After this fix : ("tcp: add tcp_v4_fill_cb()/tcp_v4_restore_cb()"),
socket lookups happen while skb->cb[] has not been mangled yet by TCP.
Fixes: a04a480d4392 ("net: Require exact match for TCP socket lookups if dif is l3mdev")
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull ARM fix from Russell King:
"Just one fix this time around, for the late commit in the merge window
that triggered a problem with qemu. Qemu is apparently also going to
receive a fix for the discovered issue"
* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: avoid faulting on qemu
Pull i2c fixes from Wolfram Sang:
"Here are two bugfixes for I2C, fixing a memleak in the core and irq
allocation for i801.
Also three bugfixes for the at24 eeprom driver which Bartosz collected
while taking over maintainership for this driver"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
eeprom: at24: check at24_read/write arguments
eeprom: at24: fix reading from 24MAC402/24MAC602
eeprom: at24: correctly set the size for at24mac402
i2c: i2c-boardinfo: fix memory leaks on devinfo
i2c: i801: Fix Failed to allocate irq -2147483648 error
Drop reference to obsolete maintainer tree
Fix overflow bug in pmbus driver
Fix SMBUS timeout problem in jc42 driver
For the SMBUS timeout handling, we had a brief discussion if this should
be considered a bug fix or a feature. Peter says "it fixes real problems
where the application misbehave due to faulty content when reading from
an eeprom", and he needs the patch in his company's v4.14 images. This is
good enough for me and warrants backport to stable kernels.
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Merge tag 'hwmon-for-linus-v4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
"Fixes:
- Drop reference to obsolete maintainer tree
- Fix overflow bug in pmbus driver
- Fix SMBUS timeout problem in jc42 driver
For the SMBUS timeout handling, we had a brief discussion if this
should be considered a bug fix or a feature. Peter says "it fixes real
problems where the application misbehave due to faulty content when
reading from an eeprom", and he needs the patch in his company's v4.14
images. This is good enough for me and warrants backport to stable
kernels"
* tag 'hwmon-for-linus-v4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (jc42) optionally try to disable the SMBUS timeout
hwmon: (pmbus) Use 64bit math for DIRECT format values
hwmon: Drop reference to Jean's tree
Fix the MAINTAINERS record so that it's more obvious who the maintainer for
AF_RXRPC is.
Reported-by: Joe Perches <joe@perches.com>
Reported-by: David Miller <davem@davemloft.net>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In rxrpc_release_sock() there may be no rx->local value to access, so we
can't unconditionally follow it to the rxrpc network namespace information
to poke the connection reapers.
Instead, use the socket's namespace pointer to find the namespace.
This unfixed code causes the following static checker warning:
net/rxrpc/af_rxrpc.c:898 rxrpc_release_sock()
error: we previously assumed 'rx->local' could be null (see line 887)
Fixes: 3d18cbb7fd0c ("rxrpc: Fix conn expiry timers")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
* kernel-doc
- fix a build error from symbols ending in _ by making them _*
* cpcap
- Fix wrong handling of platform_get_irq_by_name which can return a
postive value on success.
* max30102
- ABI says temperature should bein milli Celsius after scaling. Here it
was in Celsius.
* meson-saradc:
- for Meson8/8b the gate clock bit was wrongly selected due to ffs/fls fun.
- bandgap was not initialized properly on older socs. Mostly got away
with this because the bootloader was doing it for us.
- Meson8/8b don't have some registers in the general regmap config. Give
them their own ones.
* stm32-lptimer/stm32-adc trigger
- Fix a link error when optional stm32-lptimer driver isn't built.
* sx9500
- we recently removed explict handling of ACPI provided gpio interrupts
as the core i2c acpi code started providing them directly. Unfortuantely
there are ACPI tables out there that use GpioIO resources and it doesn't
know to map those as interrupts. As such partial revert the removal
of this handling from the driver.
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Merge tag 'iio-fixes-for-4.15a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus
Jonathan writes:
First set of IIO fixes in the 4.15 cycle.
* kernel-doc
- fix a build error from symbols ending in _ by making them _*
* cpcap
- Fix wrong handling of platform_get_irq_by_name which can return a
postive value on success.
* max30102
- ABI says temperature should bein milli Celsius after scaling. Here it
was in Celsius.
* meson-saradc:
- for Meson8/8b the gate clock bit was wrongly selected due to ffs/fls fun.
- bandgap was not initialized properly on older socs. Mostly got away
with this because the bootloader was doing it for us.
- Meson8/8b don't have some registers in the general regmap config. Give
them their own ones.
* stm32-lptimer/stm32-adc trigger
- Fix a link error when optional stm32-lptimer driver isn't built.
* sx9500
- we recently removed explict handling of ACPI provided gpio interrupts
as the core i2c acpi code started providing them directly. Unfortuantely
there are ACPI tables out there that use GpioIO resources and it doesn't
know to map those as interrupts. As such partial revert the removal
of this handling from the driver.
Remove one extraneous level of indentation on assignment statement.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'linux-can-fixes-for-4.15-20171201' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
pull-request: can 2017-12-01
this is a pull for net consisting of nine patches.
The first three patches are by Jimmy Assarsson for the kvaser_usb driver
and add the missing free()s in some error path, a signed/unsigned
comparison and ratelimit the error messages in case of incomplete
messages. Oliver Stäbler's patch for the ti_hecc driver fix the napi
poll function's return value. The return values of the probe function of
the peak_canfd and peak_pci PCI drivers are fixed by Stephane Grosjean's
patch. Two patches by me for the flexcan driver update the
bugs/features/quirks overview table and fix the error state transition
for the VF610 SoC. The two patches by Martin Kelly for the mcba_usb
driver fix a typo and a device disconnect bug.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'at24-4.15-fixes-for-wolfram' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into i2c/for-current
Please consider pulling the following fixes for v4.15. While it doesn't
fix any regression introduced in the v4.15 merge window, we have a
feature in at24 since linux v4.8 - reading the mac address block from
at24mac series - which turned out to be not working.
This pull request contains changes that fix it together with a patch
that hardens the read and write argument sanitization with
out-of-bounds checks that were missing.
