Pull irq fix from Ingo Molnar:
"Fix a race in the IRQ resend mechanism, which can result in a NULL
dereference crash"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq: Prevent NULL pointer dereference in resend_irqs()
- A single patch for some Aspeed problems. The BMCs are much
happier now.
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Merge tag 'pinctrl-v5.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fix from Linus Walleij:
"Hopefully last pin control fix: a single patch for some Aspeed
problems. The BMCs are much happier now"
* tag 'pinctrl-v5.3-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: aspeed: Fix spurious mux failures on the AST2500
- An ACPI DSDT error fixup of the type we always see and
Hans invariably gets to fix.
- A OF quirk fix for the current release (v5.3)
- Some consistency checks on the userspace ABI.
- A memory leak.
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Merge tag 'gpio-v5.3-6' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"I don't really like to send so many fixes at the very last minute, but
the bug-sport activity is unpredictable.
Four fixes, three are -stable material that will go everywhere, one is
for the current cycle:
- An ACPI DSDT error fixup of the type we always see and Hans
invariably gets to fix.
- A OF quirk fix for the current release (v5.3)
- Some consistency checks on the userspace ABI.
- A memory leak"
* tag 'gpio-v5.3-6' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpiolib: acpi: Add gpiolib_acpi_run_edge_events_on_boot option and blacklist
gpiolib: of: fix fallback quirks handling
gpio: fix line flag validation in lineevent_create
gpio: fix line flag validation in linehandle_create
gpio: mockup: add missing single_release()
Commit 674fa8daa8 ("pinctrl: aspeed-g5: Delay acquisition of regmaps")
was determined to be a partial fix to the problem of acquiring the LPC
Host Controller and GFX regmaps: The AST2500 pin controller may need to
fetch syscon regmaps during expression evaluation as well as when
setting mux state. For example, this case is hit by attempting to export
pins exposing the LPC Host Controller as GPIOs.
An optional eval() hook is added to the Aspeed pinmux operation struct
and called from aspeed_sig_expr_eval() if the pointer is set by the
SoC-specific driver. This enables the AST2500 to perform the custom
action of acquiring its regmap dependencies as required.
John Wang tested the fix on an Inspur FP5280G2 machine (AST2500-based)
where the issue was found, and I've booted the fix on Witherspoon
(AST2500) and Palmetto (AST2400) machines, and poked at relevant pins
under QEMU by forcing mux configurations via devmem before exporting
GPIOs to exercise the driver.
Fixes: 7d29ed88ac ("pinctrl: aspeed: Read and write bits in LPC and GFX controllers")
Fixes: 674fa8daa8 ("pinctrl: aspeed-g5: Delay acquisition of regmaps")
Reported-by: John Wang <wangzqbj@inspur.com>
Tested-by: John Wang <wangzqbj@inspur.com>
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/20190829071738.2523-1-andrew@aj.id.au
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Another day; another DSDT bug we need to workaround...
Since commit ca876c7483 ("gpiolib-acpi: make sure we trigger edge events
at least once on boot") we call _AEI edge handlers at boot.
In some rare cases this causes problems. One example of this is the Minix
Neo Z83-4 mini PC, this device has a clear DSDT bug where it has some copy
and pasted code for dealing with Micro USB-B connector host/device role
switching, while the mini PC does not even have a micro-USB connector.
This code, which should not be there, messes with the DDC data pin from
the HDMI connector (switching it to GPIO mode) breaking HDMI support.
To avoid problems like this, this commit adds a new
gpiolib_acpi.run_edge_events_on_boot kernel commandline option, which
allows disabling the running of _AEI edge event handlers at boot.
The default value is -1/auto which uses a DMI based blacklist, the initial
version of this blacklist contains the Neo Z83-4 fixing the HDMI breakage.
Cc: stable@vger.kernel.org
Cc: Daniel Drake <drake@endlessm.com>
Cc: Ian W MORRISON <ianwmorrison@gmail.com>
Reported-by: Ian W MORRISON <ianwmorrison@gmail.com>
Suggested-by: Ian W MORRISON <ianwmorrison@gmail.com>
Fixes: ca876c7483 ("gpiolib-acpi: make sure we trigger edge events at least once on boot")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20190827202835.213456-1-hdegoede@redhat.com
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Ian W MORRISON <ianwmorrison@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
These are two regression fixes for bugs that got introduced
during the system call rework that went into linux-5.1
but only bisected and fixed now:
- One patch affects semtimedop() on many of the less
common 32-bit architectures, this just needs a single-line
bugfix.
- The other affects only sparc64 and has a slightly more
invasive workaround to apply the same change to sparc64
that was done to the generic code used everywhere else.
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Merge tag 'ipc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull ipc regression fixes from Arnd Bergmann:
"Fix ipc regressions from y2038 patches
These are two regression fixes for bugs that got introduced during the
system call rework that went into linux-5.1 but only bisected and
fixed now:
- One patch affects semtimedop() on many of the less common 32-bit
architectures, this just needs a single-line bugfix.
- The other affects only sparc64 and has a slightly more invasive
workaround to apply the same change to sparc64 that was done to the
generic code used everywhere else"
* tag 'ipc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
ipc: fix sparc64 ipc() wrapper
ipc: fix semtimedop for generic 32-bit architectures
We should only try to execute fallback quirks handling when previous
call returned -ENOENT, and not when we did not get -EPROBE_DEFER.
The other errors should be treated as hard errors: we did find the GPIO
description, but for some reason we failed to handle it properly.
The fallbacks should only be executed when previous handlers returned
-ENOENT, which means the mapping/description was not found.
Also let's remove the explicit deferral handling when iterating through
GPIO suffixes: it is not needed anymore as we will not be calling
fallbacks for anything but -ENOENT.
Fixes: df451f83e1 ("gpio: of: fix Freescale SPI CS quirk handling")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/20190903231856.GA165165@dtor-ws
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
- fix a memory leak in gpio-mockup
- fix two flag validation bugs in gpiolib's character device ioctl()'s
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Merge tag 'gpio-v5.4-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into fixes
gpio: fixes for v5.4
- fix a memory leak in gpio-mockup
- fix two flag validation bugs in gpiolib's character device ioctl()'s
This is obviouly very late, containing three small and simple
driver specific fixes. The main one is the TWL fix, this fixes
issues with cpufreq on the PMICs used with BeagleBoard generation
OMAP SoCs which had been broken due to changes in the generic OPP
code exposing a bug in the regulator driver for these devices
causing them to think that OPPs weren't supported on the system.
Sorry about sending this so late, I hadn't registered that the
TWL issue manifested in cpufreq.
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Merge tag 'regulator-fix-v5.3-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"This is obviouly very late, containing three small and simple driver
specific fixes.
The main one is the TWL fix, this fixes issues with cpufreq on the
PMICs used with BeagleBoard generation OMAP SoCs which had been broken
due to changes in the generic OPP code exposing a bug in the regulator
driver for these devices causing them to think that OPPs weren't
supported on the system.
Sorry about sending this so late, I hadn't registered that the TWL
issue manifested in cpufreq"
* tag 'regulator-fix-v5.3-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: twl: voltage lists for vdd1/2 on twl4030
regulator: act8945a-regulator: fix ldo register addresses in set_mode hook
regulator: slg51000: Fix a couple NULL vs IS_ERR() checks
lineevent_create should not allow any of GPIOHANDLE_REQUEST_OUTPUT,
GPIOHANDLE_REQUEST_OPEN_DRAIN or GPIOHANDLE_REQUEST_OPEN_SOURCE to be set.
Fixes: d7c51b47ac ("gpio: userspace ABI for reading/writing GPIO lines")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Kent Gibson <warthog618@gmail.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
linehandle_create should not allow both GPIOHANDLE_REQUEST_INPUT
and GPIOHANDLE_REQUEST_OUTPUT to be set.
Fixes: d7c51b47ac ("gpio: userspace ABI for reading/writing GPIO lines")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Kent Gibson <warthog618@gmail.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
When using single_open() for opening, single_release() should be
used instead of seq_release(), otherwise there is a memory leak.
Fixes: 2a9e27408e ("gpio: mockup: rework debugfs interface")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
all related to the PCA953x driver when handling chips with
more than 8 ports, now that works again.
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Merge tag 'gpio-v5.3-5' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"All related to the PCA953x driver when handling chips with more than 8
ports, now that works again"
* tag 'gpio-v5.3-5' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: pca953x: use pca953x_read_regs instead of regmap_bulk_read
gpio: pca953x: correct type of reg_direction
GCC unescapes escaped string section names while Clang does not. Because
__section uses the `#` stringification operator for the section name, it
doesn't need to be escaped.
This fixes an Oops observed in distro's that use systemd and not
net.core.bpf_jit_enable=1, when their kernels are compiled with Clang.
Link: https://github.com/ClangBuiltLinux/linux/issues/619
Link: https://bugs.llvm.org/show_bug.cgi?id=42950
Link: https://marc.info/?l=linux-netdev&m=156412960619946&w=2
Link: https://lore.kernel.org/lkml/20190904181740.GA19688@gmail.com/
Acked-by: Will Deacon <will@kernel.org>
Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
Suggested-by: Josh Poimboeuf <jpoimboe@redhat.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
[Cherry-picked from the __section cleanup series for 5.3]
[Adjusted commit message]
Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
This reverts commit 558682b529.
Chris Wilson reports that it breaks his CPU hotplug test scripts. In
particular, it breaks offlining and then re-onlining the boot CPU, which
we treat specially (and the BIOS does too).
The symptoms are that we can offline the CPU, but it then does not come
back online again:
smpboot: CPU 0 is now offline
smpboot: Booting Node 0 Processor 0 APIC 0x0
smpboot: do_boot_cpu failed(-1) to wakeup CPU#0
Thomas says he knows why it's broken (my personal suspicion: our magic
handling of the "cpu0_logical_apicid" thing), but for 5.3 the right fix
is to just revert it, since we've never touched the LDR bits before, and
it's not worth the risk to do anything else at this stage.
[ Hotpluging of the boot CPU is special anyway, and should be off by
default. See the "BOOTPARAM_HOTPLUG_CPU0" config option and the
cpu0_hotplug kernel parameter.
In general you should not do it, and it has various known limitations
(hibernate and suspend require the boot CPU, for example).
But it should work, even if the boot CPU is special and needs careful
treatment - Linus ]
Link: https://lore.kernel.org/lkml/156785100521.13300.14461504732265570003@skylake-alporthouse-com/
Reported-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Bandan Das <bsd@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Matt bisected a sparc64 specific issue with semctl, shmctl and msgctl
to a commit from my y2038 series in linux-5.1, as I missed the custom
sys_ipc() wrapper that sparc64 uses in place of the generic version that
I patched.
The problem is that the sys_{sem,shm,msg}ctl() functions in the kernel
now do not allow being called with the IPC_64 flag any more, resulting
in a -EINVAL error when they don't recognize the command.
Instead, the correct way to do this now is to call the internal
ksys_old_{sem,shm,msg}ctl() functions to select the API version.
As we generally move towards these functions anyway, change all of
sparc_ipc() to consistently use those in place of the sys_*() versions,
and move the required ksys_*() declarations into linux/syscalls.h
The IS_ENABLED(CONFIG_SYSVIPC) check is required to avoid link
errors when ipc is disabled.
Reported-by: Matt Turner <mattst88@gmail.com>
Fixes: 275f22148e ("ipc: rename old-style shmctl/semctl/msgctl syscalls")
Cc: stable@vger.kernel.org
Tested-by: Matt Turner <mattst88@gmail.com>
Tested-by: Anatoly Pugachev <matorola@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Here is a few small patches for the documenation file that came in
through the char-misc tree in -rc7 for your tree. They fix the mistake
in the .rst format that kept the table of companies from showing up in
the html output, and most importantly, add people's names to the list
showing support for our process.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.3-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull Documentation updates from Greg KH:
"A few small patches for the documenation file that came in through the
char-misc tree in -rc7 for your tree.
They fix the mistake in the .rst format that kept the table of
companies from showing up in the html output, and most importantly,
add people's names to the list showing support for our process"
* tag 'char-misc-5.3-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
Documentation/process: Add Qualcomm process ambassador for hardware security issues
Documentation/process/embargoed-hardware-issues: Microsoft ambassador
Documentation/process: Add Google contact for embargoed hardware issues
Documentation/process: Volunteer as the ambassador for Xen
Some late fixes for drivers:
- memory leak in ti crossbar dma driver
- cleanup of omap dma probe
- Fix for link list configuration in sprd dma driver
- Handling fixed for DMACHCLR if iommu is mapped in rcar dma
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Merge tag 'dmaengine-fix-5.3' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine fixes from Vinod Koul:
"Some late fixes for drivers:
- memory leak in ti crossbar dma driver
- cleanup of omap dma probe
- Fix for link list configuration in sprd dma driver
- Handling fixed for DMACHCLR if iommu is mapped in rcar dma"
* tag 'dmaengine-fix-5.3' of git://git.infradead.org/users/vkoul/slave-dma:
dmaengine: rcar-dmac: Fix DMACHCLR handling if iommu is mapped
dmaengine: sprd: Fix the DMA link-list configuration
dmaengine: ti: omap-dma: Add cleanup in omap_dma_probe()
dmaengine: ti: dma-crossbar: Fix a memory leak bug
Just a single lpfc fix adjusting the number of available queues for
high CPU count systems.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fix from James Bottomley:
"Just a single lpfc fix adjusting the number of available queues for
high CPU count systems"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: lpfc: Raise config max for lpfc_fcp_mq_threshold variable
- Restore support for 1GB alignment namespaces, truncate the end of
misaligned namespaces.
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Merge tag 'libnvdimm-fix-5.3-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fix from Dan Williams:
"Restore support for 1GB alignment namespaces, truncate the end of
misaligned namespaces"
* tag 'libnvdimm-fix-5.3-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
libnvdimm/pfn: Fix namespace creation on misaligned addresses
Pull input fix from Dmitry Torokhov:
"A tiny update from Benjamin removing a mistakenly added Elan PNP ID so
that the device is again handled by hid-multitouch"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: elan_i2c - remove Lenovo Legion Y7000 PnpID
Looks like the Bios of the Lenovo Legion Y7000 is using ELAN061B
when the actual device is supposed to be used with hid-multitouch.
Remove it from the list of the supported device, hoping that
no one will complain about the loss in functionality.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=203467
Fixes: 738c06d0e4 ("Input: elan_i2c - add hardware ID for multiple Lenovo laptops")
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
There are three more fixes for this week:
- The Windows-on-ARM laptops require a workaround to
prevent crashing at boot from ACPI
- The Renesas "draak" board needs one bugfix for
the backlight regulator
- Also for Renesas, the "hihope" board accidentally
had its eMMC turned off in the 5.3 merge window.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"There are three more fixes for this week:
- The Windows-on-ARM laptops require a workaround to prevent crashing
at boot from ACPI
- The Renesas 'draak' board needs one bugfix for the backlight
regulator
- Also for Renesas, the 'hihope' board accidentally had its eMMC
turned off in the 5.3 merge window"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
soc: qcom: geni: Provide parameter error checking
arm64: dts: renesas: hihope-common: Fix eMMC status
arm64: dts: renesas: r8a77995: draak: Fix backlight regulator name
As Vincent noticed, the y2038 conversion of semtimedop in linux-5.1
broke when commit 00bf25d693 ("y2038: use time32 syscall names on
32-bit") changed all system calls on all architectures that take
a 32-bit time_t to point to the _time32 implementation, but left out
semtimedop in the asm-generic header.
This affects all 32-bit architectures using asm-generic/unistd.h:
h8300, unicore32, openrisc, nios2, hexagon, c6x, arc, nds32 and csky.
The notable exception is riscv32, which has dropped support for the
time32 system calls entirely.
Reported-by: Vincent Chen <deanbo422@gmail.com>
Cc: stable@vger.kernel.org
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Mark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <jacquiot.aurelien@gmail.com>
Cc: Guo Ren <guoren@kernel.org>
Fixes: 00bf25d693 ("y2038: use time32 syscall names on 32-bit")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- fix removal vs attribute read/write races (Al Viro)
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Merge tag 'configfs-for-5.3' of git://git.infradead.org/users/hch/configfs
Pull configfs fixes from Christoph Hellwig:
"Late configfs fixes from Al that fix pretty nasty removal vs attribute
access races"
* tag 'configfs-for-5.3' of git://git.infradead.org/users/hch/configfs:
configfs: provide exclusion between IO and removals
configfs: new object reprsenting tree fragments
configfs_register_group() shouldn't be (and isn't) called in rmdirable parts
configfs: stash the data we need into configfs_buffer at open time
Including:
* Revert for an Intel VT-d patch that caused problems for some
users.
* Removal of a feature in the Intel VT-d driver that was never
supported in hardware. This qualifies as a fix because the
code for this feature sets reserved bits in the invalidation
queue descriptor, causing failed invalidations on real
hardware.
* Two fixes for AMD IOMMU driver to fix a race condition and to
add a missing IOTLB flush when kernel is booted in kdump mode.
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Merge tag 'iommu-fixes-v5.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU fixes from Joerg Roedel:
- Revert an Intel VT-d patch that caused problems for some users.
- Removal of a feature in the Intel VT-d driver that was never
supported in hardware. This qualifies as a fix because the code for
this feature sets reserved bits in the invalidation queue descriptor,
causing failed invalidations on real hardware.
- Two fixes for AMD IOMMU driver to fix a race condition and to add a
missing IOTLB flush when kernel is booted in kdump mode.
* tag 'iommu-fixes-v5.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/amd: Fix race in increase_address_space()
iommu/amd: Flush old domains in kdump kernel
iommu/vt-d: Remove global page flush support
Revert "iommu/vt-d: Avoid duplicated pci dma alias consideration"
- Fix card init for some eMMCs that need retries for CMD6
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Merge tag 'mmc-v5.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fix from Ulf Hansson:
"Revert in order to fix card init for some eMMCs that need retries for
CMD6"
* tag 'mmc-v5.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
Revert "mmc: core: do not retry CMD6 in __mmc_switch()"
nouveau:
- add missing MODULE_FIRMWARE definitions
igenic:
- hardcode panel type DPI
vmwgfx:
- double free fix
core:
- command line mode parser fixes
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Merge tag 'drm-fixes-2019-09-06' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Live from my friend's couch in Barcelona, latest round of drm fixes.
The command line parser regression fixes look a bit larger because
they come with selftests included for the bugs they fix. Otherwise a
single nouveau, single ingenic and single vmwgfx fix:
nouveau:
- add missing MODULE_FIRMWARE definitions
igenic:
- hardcode panel type DPI
vmwgfx:
- double free fix
core:
- command line mode parser fixes"
* tag 'drm-fixes-2019-09-06' of git://anongit.freedesktop.org/drm/drm:
drm/vmwgfx: Fix double free in vmw_recv_msg()
drm/nouveau/sec2/gp102: add missing MODULE_FIRMWAREs
drm/selftests: modes: Add more unit tests for the cmdline parser
drm/modes: Introduce a whitelist for the named modes
drm/modes: Fix the command line parser to take force options into account
drm/modes: Add a switch to differentiate free standing options
drm/ingenic: Hardcode panel type to DPI
A couple of last minute bugfixes. And a revert of a failed attempt at
metadata access optimization - we'll try again in the next cycle.
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, vhost, and balloon bugfixes.
A couple of last minute bugfixes. And a revert of a failed attempt at
metadata access optimization - we'll try again in the next cycle"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
mm/balloon_compaction: suppress allocation warnings
Revert "vhost: access vq metadata through kernel virtual address"
vhost: Remove unnecessary variable
virtio-net: lower min ring num_free for efficiency
vhost/test: fix build for vhost test
vhost/test: fix build for vhost test
One fix for a boot hang on some Freescale machines when PREEMPT is enabled.
Two CVE fixes for bugs in our handling of FP registers and transactional memory,
both of which can result in corrupted FP state, or FP state leaking between
processes.
Thanks to:
Chris Packham, Christophe Leroy, Gustavo Romero, Michael Neuling.
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Merge tag 'powerpc-5.3-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"One fix for a boot hang on some Freescale machines when PREEMPT is
enabled.
Two CVE fixes for bugs in our handling of FP registers and
transactional memory, both of which can result in corrupted FP state,
or FP state leaking between processes.
Thanks to: Chris Packham, Christophe Leroy, Gustavo Romero, Michael
Neuling"
* tag 'powerpc-5.3-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/tm: Fix restoring FP/VMX facility incorrectly on interrupts
powerpc/tm: Fix FP/VMX unavailable exceptions inside a transaction
powerpc/64e: Drop stale call to smp_processor_id() which hangs SMP startup
When booting with ACPI, the Geni Serial Engine is not set as the I2C/SPI
parent and thus, the wrapper (parent device) is unassigned. This causes
the kernel to crash with a null dereference error.
Link: https://lore.kernel.org/r/20190905082555.15020-1-lee.jones@linaro.org
Fixes: 8bc529b253 ("soc: qcom: geni: Add support for ACPI")
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
After the conversion to lock-less dma-api call the
increase_address_space() function can be called without any
locking. Multiple CPUs could potentially race for increasing
the address space, leading to invalid domain->mode settings
and invalid page-tables. This has been happening in the wild
under high IO load and memory pressure.
Fix the race by locking this operation. The function is
called infrequently so that this does not introduce
a performance regression in the dma-api path again.
Reported-by: Qian Cai <cai@lca.pw>
Fixes: 256e4621c2 ('iommu/amd: Make use of the generic IOVA allocator')
Signed-off-by: Joerg Roedel <jroedel@suse.de>
When devices are attached to the amd_iommu in a kdump kernel, the old device
table entries (DTEs), which were copied from the crashed kernel, will be
overwritten with a new domain number. When the new DTE is written, the IOMMU
is told to flush the DTE from its internal cache--but it is not told to flush
the translation cache entries for the old domain number.
Without this patch, AMD systems using the tg3 network driver fail when kdump
tries to save the vmcore to a network system, showing network timeouts and
(sometimes) IOMMU errors in the kernel log.
This patch will flush IOMMU translation cache entries for the old domain when
a DTE gets overwritten with a new domain number.
Signed-off-by: Stuart Hayes <stuart.w.hayes@gmail.com>
Fixes: 3ac3e5ee5e ('iommu/amd: Copy old trans table from old kernel')
Signed-off-by: Joerg Roedel <jroedel@suse.de>
- Make ingenic panel type DPI insteado f unknown.
- Fixes for command line parser modes.
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Merge tag 'drm-misc-fixes-2019-09-05' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
drm-misc-fixes for v5.3 final:
- Make ingenic panel type DPI insteado f unknown.
- Fixes for command line parser modes.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/606d87b2-1840-c893-eb30-d6c471c9e50a@linux.intel.com
If a request_key authentication token key gets revoked, there's a window in
which request_key_auth_describe() can see it with a NULL payload - but it
makes no check for this and something like the following oops may occur:
BUG: Kernel NULL pointer dereference at 0x00000038
Faulting instruction address: 0xc0000000004ddf30
Oops: Kernel access of bad area, sig: 11 [#1]
...
NIP [...] request_key_auth_describe+0x90/0xd0
LR [...] request_key_auth_describe+0x54/0xd0
Call Trace:
[...] request_key_auth_describe+0x54/0xd0 (unreliable)
[...] proc_keys_show+0x308/0x4c0
[...] seq_read+0x3d0/0x540
[...] proc_reg_read+0x90/0x110
[...] __vfs_read+0x3c/0x70
[...] vfs_read+0xb4/0x1b0
[...] ksys_read+0x7c/0x130
[...] system_call+0x5c/0x70
Fix this by checking for a NULL pointer when describing such a key.
Also make the read routine check for a NULL pointer to be on the safe side.
[DH: Modified to not take already-held rcu lock and modified to also check
in the read routine]
Fixes: 04c567d931 ("[PATCH] Keys: Fix race between two instantiators of a key")
Reported-by: Sachin Sant <sachinp@linux.vnet.ibm.com>
Signed-off-by: Hillf Danton <hdanton@sina.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Sachin Sant <sachinp@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The following crash was observed:
Unable to handle kernel NULL pointer dereference at 0000000000000158
Internal error: Oops: 96000004 [#1] SMP
pc : resend_irqs+0x68/0xb0
lr : resend_irqs+0x64/0xb0
...
Call trace:
resend_irqs+0x68/0xb0
tasklet_action_common.isra.6+0x84/0x138
tasklet_action+0x2c/0x38
__do_softirq+0x120/0x324
run_ksoftirqd+0x44/0x60
smpboot_thread_fn+0x1ac/0x1e8
kthread+0x134/0x138
ret_from_fork+0x10/0x18
The reason for this is that the interrupt resend mechanism happens in soft
interrupt context, which is a asynchronous mechanism versus other
operations on interrupts. free_irq() does not take resend handling into
account. Thus, the irq descriptor might be already freed before the resend
tasklet is executed. resend_irqs() does not check the return value of the
interrupt descriptor lookup and derefences the return value
unconditionally.
1):
__setup_irq
irq_startup
check_irq_resend // activate softirq to handle resend irq
2):
irq_domain_free_irqs
irq_free_descs
free_desc
call_rcu(&desc->rcu, delayed_free_desc)
3):
__do_softirq
tasklet_action
resend_irqs
desc = irq_to_desc(irq)
desc->handle_irq(desc) // desc is NULL --> Ooops
Fix this by adding a NULL pointer check in resend_irqs() before derefencing
the irq descriptor.
Fixes: a4633adcdb ("[PATCH] genirq: add genirq sw IRQ-retrigger")
Signed-off-by: Yunfeng Ye <yeyunfeng@huawei.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Zhiqiang Liu <liuzhiqiang26@huawei.com>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/1630ae13-5c8e-901e-de09-e740b6a426a7@huawei.com
A collection of small HD-audio fixes:
- A regression fix for Realtek codecs due to the recent initialization
procedure change
- A fix for potential endless loop at the quirk table lookup
- Quirks for Lenovo, ASUS and HP machines
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Merge tag 'sound-5.3-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of small HD-audio fixes:
- A regression fix for Realtek codecs due to the recent
initialization procedure change
- A fix for potential endless loop at the quirk table lookup
- Quirks for Lenovo, ASUS and HP machines"
* tag 'sound-5.3-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/realtek - Fix the problem of two front mics on a ThinkCentre
ALSA: hda/realtek - Enable internal speaker & headset mic of ASUS UX431FL
ALSA: hda/realtek - Add quirk for HP Pavilion 15
ALSA: hda/realtek - Fix overridden device-specific initialization
ALSA: hda - Fix potential endless loop at applying quirks
Pull x86 fixes from Ingo Molnar:
"Misc fixes:
- EFI boot fix for signed kernels
- an AC flags fix related to UBSAN
- Hyper-V infinite loop fix"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/hyper-v: Fix overflow bug in fill_gva_list()
x86/uaccess: Don't leak the AC flags into __get_user() argument evaluation
x86/boot: Preserve boot_params.secure_boot from sanitizing
Pull scheduler fixes from Ingo Molnar:
"This fixes an ABI bug introduced this cycle, plus fixes a throttling
bug"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/core: Fix uclamp ABI bug, clean up and robustify sched_read_attr() ABI logic and code
sched/fair: Don't assign runtime for throttled cfs_rq
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Merge tag 'clang-format-for-linus-v5.3-rc8' of git://github.com/ojeda/linux
Pull clang-format update from Miguel Ojeda:
"Update with the latest for_each macro list"
* tag 'clang-format-for-linus-v5.3-rc8' of git://github.com/ojeda/linux:
clang-format: Update with the latest for_each macro list
* RZ/G2M based HiHope main board
- Re-enabled accidently disabled SDHI3 (eMMC) support
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Merge tag 'renesas-fixes2-for-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into arm/fixes
Second Round of Renesas ARM Based SoC Fixes for v5.3
* RZ/G2M based HiHope main board
- Re-enabled accidently disabled SDHI3 (eMMC) support
* tag 'renesas-fixes2-for-v5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
arm64: dts: renesas: hihope-common: Fix eMMC status
Link: https://lore.kernel.org/r/cover.1567675986.git.horms+renesas@verge.net.au
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
We recently added a kfree() after the end of the loop:
if (retries == RETRIES) {
kfree(reply);
return -EINVAL;
}
There are two problems. First the test is wrong and because retries
equals RETRIES if we succeed on the last iteration through the loop.
Second if we fail on the last iteration through the loop then the kfree
is a double free.
When you're reading this code, please note the break statement at the
end of the while loop. This patch changes the loop so that if it's not
successful then "reply" is NULL and we can test for that afterward.
Cc: <stable@vger.kernel.org>
Fixes: 6b7c3b86f0 ("drm/vmwgfx: fix memory leak when too many retries have occurred")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
This adds myself as the Google contact for embargoed hardware security
issues and fixes some small typos.
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Matt Linton <amuse@google.com>
Cc: Matthew Garrett <mjg59@google.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Guenter Roeck <groeck@chromium.org>
Link: https://lore.kernel.org/r/201909040922.56496BF70@keescook
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Make sure that attribute methods are not called after the item
has been removed from the tree. To do so, we
* at the point of no return in removals, grab ->frag_sem
exclusive and mark the fragment dead.
* call the methods of attributes with ->frag_sem taken
shared and only after having verified that the fragment is still
alive.
The main benefit is for method instances - they are
guaranteed that the objects they are accessing *and* all ancestors
are still there. Another win is that we don't need to bother
with extra refcount on config_item when opening a file -
the item will be alive for as long as it stays in the tree, and
we won't touch it/attributes/any associated data after it's
been removed from the tree.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Christoph Hellwig <hch@lst.de>
