Commit 3565fce3a6 ("mm, x86: get_user_pages() for dax mappings") has
moved up the pte_page(pte) in x86's fast gup_pte_range(), for no
discernible reason: put it back where it belongs, after the pte_flags
check and the pfn_valid cross-check.
That may be the cause of the NULL pointer dereference in
gup_pte_range(), seen when vfio called vaddr_get_pfn() when starting a
qemu-kvm based VM.
Signed-off-by: Hugh Dickins <hughd@google.com>
Reported-by: Michael Long <Harn-Solo@gmx.de>
Tested-by: Michael Long <Harn-Solo@gmx.de>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
We don't require a dedicated thread for fsnotify cleanup. Switch it
over to a workqueue job instead that runs on the system_unbound_wq.
In the interest of not thrashing the queued job too often when there are
a lot of marks being removed, we delay the reaper job slightly when
queueing it, to allow several to gather on the list.
Signed-off-by: Jeff Layton <jeff.layton@primarydata.com>
Tested-by: Eryu Guan <guaneryu@gmail.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Eric Paris <eparis@parisplace.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This reverts commit c510eff6be ("fsnotify: destroy marks with
call_srcu instead of dedicated thread").
Eryu reported that he was seeing some OOM kills kick in when running a
testcase that adds and removes inotify marks on a file in a tight loop.
The above commit changed the code to use call_srcu to clean up the
marks. While that does (in principle) work, the srcu callback job is
limited to cleaning up entries in small batches and only once per jiffy.
It's easily possible to overwhelm that machinery with too many call_srcu
callbacks, and Eryu's reproduer did just that.
There's also another potential problem with using call_srcu here. While
you can obviously sleep while holding the srcu_read_lock, the callbacks
run under local_bh_disable, so you can't sleep there.
It's possible when putting the last reference to the fsnotify_mark that
we'll end up putting a chain of references including the fsnotify_group,
uid, and associated keys. While I don't see any obvious ways that that
could occurs, it's probably still best to avoid using call_srcu here
after all.
This patch reverts the above patch. A later patch will take a different
approach to eliminated the dedicated thread here.
Signed-off-by: Jeff Layton <jeff.layton@primarydata.com>
Reported-by: Eryu Guan <guaneryu@gmail.com>
Tested-by: Eryu Guan <guaneryu@gmail.com>
Cc: Jan Kara <jack@suse.com>
Cc: Eric Paris <eparis@parisplace.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Grazvydas Ignotas has reported a regression in remap_file_pages()
emulation.
Testcase:
#define _GNU_SOURCE
#include <assert.h>
#include <stdlib.h>
#include <stdio.h>
#include <sys/mman.h>
#define SIZE (4096 * 3)
int main(int argc, char **argv)
{
unsigned long *p;
long i;
p = mmap(NULL, SIZE, PROT_READ | PROT_WRITE,
MAP_SHARED | MAP_ANONYMOUS, -1, 0);
if (p == MAP_FAILED) {
perror("mmap");
return -1;
}
for (i = 0; i < SIZE / 4096; i++)
p[i * 4096 / sizeof(*p)] = i;
if (remap_file_pages(p, 4096, 0, 1, 0)) {
perror("remap_file_pages");
return -1;
}
if (remap_file_pages(p, 4096 * 2, 0, 1, 0)) {
perror("remap_file_pages");
return -1;
}
assert(p[0] == 1);
munmap(p, SIZE);
return 0;
}
The second remap_file_pages() fails with -EINVAL.
The reason is that remap_file_pages() emulation assumes that the target
vma covers whole area we want to over map. That assumption is broken by
first remap_file_pages() call: it split the area into two vma.
The solution is to check next adjacent vmas, if they map the same file
with the same flags.
Fixes: c8d78c1823 ("mm: replace remap_file_pages() syscall with emulation")
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reported-by: Grazvydas Ignotas <notasas@gmail.com>
Tested-by: Grazvydas Ignotas <notasas@gmail.com>
Cc: <stable@vger.kernel.org> [4.0+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
DAX doesn't deposit pgtables when it maps huge pages: nothing to
withdraw. It can lead to crash.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Matthew Wilcox <willy@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull cifs fixes from Steve French:
"A small set of cifs fixes.
I am still reviewing some more, recently submitted SMB3 fixes, but
these three are small and safe and ready now"
* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
cifs: fix erroneous return value
cifs: fix potential overflow in cifs_compose_mount_options
cifs: remove redundant check for null string pointer
- Fix for an unpleasant crash when the VM is created without a timer
- Allow HYP mode to access the full PA space, and not only 40bit
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull ARM KVM fixes from Paolo Bonzini:
- Fix for an unpleasant crash when the VM is created without a timer
- Allow HYP mode to access the full PA space, and not only 40bit
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
arm64: KVM: Configure TCR_EL2.PS at runtime
KVM: arm/arm64: Fix reference to uninitialised VGIC
- Fix for an unpleasant crash when the VM is created without a timer
- Allow HYP mode to access the full PA space, and not only 40bit
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Merge tag 'kvm-arm-for-4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into kvm-master
KVM/ARM fixes for 4.5-rc4
- Fix for an unpleasant crash when the VM is created without a timer
- Allow HYP mode to access the full PA space, and not only 40bit
Minor register size and interrupt acknowledgement fixes which only showed
up in testing on newer hardware, but mostly a fix to the MM refcount
handling to prevent a recursive refcount issue when mmap() is used on
the file descriptor associated with a bound PASID.
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Merge tag 'for-linus-20160216' of git://git.infradead.org/intel-iommu
Pull IOMMU SVM fixes from David Woodhouse:
"Minor register size and interrupt acknowledgement fixes which only
showed up in testing on newer hardware, but mostly a fix to the MM
refcount handling to prevent a recursive refcount issue when mmap() is
used on the file descriptor associated with a bound PASID"
* tag 'for-linus-20160216' of git://git.infradead.org/intel-iommu:
iommu/vt-d: Clear PPR bit to ensure we get more page request interrupts
iommu/vt-d: Fix 64-bit accesses to 32-bit DMAR_GSTS_REG
iommu/vt-d: Fix mm refcounting to hold mm_count not mm_users
A small clutch of driver specific fixes. The OMAP one is a bit worrying
since it seems to be triggered by some changes in the runtime PM core
code and I suspect there's other drivers across that are going to be
using the same pattern outside of OMAP but nothing seems to be coming up
in the testing people are doing.
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Merge tag 'spi-fix-v4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A small clutch of driver specific fixes.
The OMAP one is a bit worrying since it seems to be triggered by some
changes in the runtime PM core code and I suspect there's other
drivers across that are going to be using the same pattern outside of
OMAP but nothing seems to be coming up in the testing people are
doing"
* tag 'spi-fix-v4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: omap2-mcspi: Fix PM regression with deferred probe for pm_runtime_reinit
spi: bcm2835aux: fix bitmask defines
spi: atmel: fix gpio chip-select in case of non-DT platform
spi/fsl-espi: Correct the maximum transaction length
spi: imx: fix spi resource leak with dma transfer
spi: fix counting in spi-loopback-test code
Pull m68k fixes from Geert Uytterhoeven:
"Summary:
- Wire up new copy_file_range syscall
- Update defconfigs"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k/defconfig: Update defconfigs for v4.5-rc1
m68k: Wire up copy_file_range
According to the VT-d specification we need to clear the PPR bit in
the Page Request Status register when handling page requests, or the
hardware won't generate any more interrupts.
This wasn't actually necessary on SKL/KBL (which may well be the
subject of a hardware erratum, although it's harmless enough). But
other implementations do appear to get it right, and we only ever get
one interrupt unless we clear the PPR bit.
Reported-by: CQ Tang <cq.tang@intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Cc: stable@vger.kernel.org
Update the mailing list used for development of support for ARM64
Renesas SoCs.
This is a follow-up for a similar change for other Renesas SoCs and
drivers uses by Renesas SoCs. The ARM64 SoC entry was not updated in
that patch as it was not yet present in mainline.
The motivation for the mailing list update is that Renesas SoCs are now
much wider than the SH architecture and there is some desire from some
for the linux-sh list to refocus on discussion of the work on the SH
architecture.
Acked-by: Magnus Damm <damm@opensource.se>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull i915 drm fixes from Dave Airlie:
"Jani sent a bunch of i915 display fixes as my weekend started, but
hopefully you can fit them in"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/i915: fix error path in intel_setup_gmbus()
drm/i915/skl: Fix typo in DPLL_CFGCR1 definition
drm/i915/skl: Don't skip mst encoders in skl_ddi_pll_select()
drm/i915: Pretend cursor is always on for ILK-style WM calculations (v2)
drm/i915/dp: reduce missing TPS3 support errors to debug logging
drm/i915/dp: abstract training pattern selection
drm/i915/dsi: skip gpio element execution when not supported
drm/i915/dsi: don't pass arbitrary data to sideband
drm/i915/dsi: defend gpio table against out of bounds access
drm/i915/bxt: Don't save/restore eDP panel power during suspend (v3)
drm/i915: Allow i915_gem_object_get_page() on userptr as well
i915 display fixes mostly.
* tag 'drm-intel-fixes-2016-02-12' of git://anongit.freedesktop.org/drm-intel:
drm/i915: fix error path in intel_setup_gmbus()
drm/i915/skl: Fix typo in DPLL_CFGCR1 definition
drm/i915/skl: Don't skip mst encoders in skl_ddi_pll_select()
drm/i915: Pretend cursor is always on for ILK-style WM calculations (v2)
drm/i915/dp: reduce missing TPS3 support errors to debug logging
drm/i915/dp: abstract training pattern selection
drm/i915/dsi: skip gpio element execution when not supported
drm/i915/dsi: don't pass arbitrary data to sideband
drm/i915/dsi: defend gpio table against out of bounds access
drm/i915/bxt: Don't save/restore eDP panel power during suspend (v3)
drm/i915: Allow i915_gem_object_get_page() on userptr as well
Here are 3 fixes for some reported issues. Two nvmem driver fixes, and
one mei fix. All have been in linux-next just fine.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are 3 fixes for some reported issues. Two nvmem driver fixes,
and one mei fix. All have been in linux-next just fine"
* tag 'char-misc-4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
nvmem: qfprom: Specify LE device endianness
nvmem: core: return error for non word aligned access
mei: validate request value in client notify request ioctl
Here is one driver core, well klist, fix for 4.5-rc4. It fixes a
problem found in the scsi device list traversal that probably also could
be triggered by other subsystems.
The fix has been in linux-next for a while with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fix from Greg KH:
"Here is one driver core, well klist, fix for 4.5-rc4.
It fixes a problem found in the scsi device list traversal that
probably also could be triggered by other subsystems.
The fix has been in linux-next for a while with no reported problems"
* tag 'driver-core-4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
klist: fix starting point removed bug in klist iterators
Here are a number of small tty and serial driver fixes for 4.5-rc4 that
resolve some reported issues.
One of them got reverted as it wasn't correct based on testing, and all
have been in linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
"Here are a number of small tty and serial driver fixes for 4.5-rc4
that resolve some reported issues.
One of them got reverted as it wasn't correct based on testing, and
all have been in linux-next for a while"
* tag 'tty-4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
Revert "8250: uniphier: allow modular build with 8250 console"
pty: make sure super_block is still valid in final /dev/tty close
pty: fix possible use after free of tty->driver_data
tty: Add support for PCIe WCH382 2S multi-IO card
serial/omap: mark wait_for_xmitr as __maybe_unused
serial: omap: Prevent DoS using unprivileged ioctl(TIOCSRS485)
8250: uniphier: allow modular build with 8250 console
tty: Drop krefs for interrupted tty lock
Here are a number of USB and PHY driver fixes for 4.5-rc4.
They are the usual gadget and xhci drivers that had reported problems,
as well as a few small phy issues as well. All have been in linux-next
with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull PHY fixes from Greg KH:
"Here are a couple of PHY driver fixes for 4.5-rc4.
A few small phy issues. All have been in linux-next with no reported
issues"
* tag 'usb-4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
phy: twl4030-usb: Fix unbalanced pm_runtime_enable on module reload
phy: twl4030-usb: Relase usb phy on unload
phy: core: fix wrong err handle for phy_power_on
phy: Restrict phy-hi6220-usb to HiSilicon arm64
Pull perf tooling fixes from Thomas Gleixner:
"Another round of fixes for the perf tooling side:
- Prevent a NULL pointer dereference in tracepoint error handling
- Fix a thread handling bug in the intel_pt error handling code
- Search both .eh_frame and .debug_frame sections as toolchains seem
to have random choices of storing the CFI information
- Fix the perf state interval output values, which got broken when
fixing the overall output"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf stat: Fix interval output values
perf probe: Search both .eh_frame and .debug_frame sections for probe location
perf tools: Fix thread lifetime related segfaut in intel_pt
perf tools: tracepoint_error() can receive e=NULL, robustify it
Pull lockdep fix from Thomas Gleixner:
"A single fix for the stack trace caching logic in lockdep, where the
duplicate avoidance managed to store no back trace at all"
* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
locking/lockdep: Fix stack trace caching logic
Pull timer fix from Thomas Gleixner:
"A single fix preventing a 32bit overflow in timespec/val to cputime
conversions on 32bit machines"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
cputime: Prevent 32bit overflow in time[val|spec]_to_cputime()
Pull irqchip fixes from Thomas Gleixner:
"Another set of ARM SoC related irqchip fixes:
- Plug a memory leak in gicv3-its
- Limit features to the root gic interrupt controller
- Add a missing barrier in the gic-v3 IAR access
- Another compile test fix for sun4i"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/gic-v3: Make sure read from ICC_IAR1_EL1 is visible on redestributor
irqchip/gic: Only set the EOImodeNS bit for the root controller
irqchip/gic: Only populate set_affinity for the root controller
irqchip/gicv3-its: Fix memory leak in its_free_tables()
irqchip/sun4i: Fix compilation outside of arch/arm
Pull x86 fixes from Thomas Gleixner:
"Two small fixlets for x86:
- Prevent a KASAN false positive in thread_saved_pc()
- Fix a 32-bit truncation problem in the x86 numa code"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm/numa: Fix 32-bit memblock range truncation bug on 32-bit NUMA kernels
x86: Fix KASAN false positives in thread_saved_pc()
Pull MIPS fixes from Ralf Baechle:
"Here's the first round of MIPS fixes after the merge window:
- Detect Octeon III's PCI correctly.
- Fix return value of the MT7620 probing function.
- Wire up the copy_file_range syscall.
- Fix 64k page support on 32 bit kernels.
- Fix the early Coherency Manager probe.
- Allow only hardware-supported page sizes to be selected for R6000.
- Fix corner cases for the RDHWR nstruction emulation on old hardware.
- Fix FPU handling corner cases.
- Remove stale entry for BCM33xx from the MAINTAINERS file.
- 32 and 64 bit ELF headers are different, handle them correctly"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
mips: Differentiate between 32 and 64 bit ELF header
MIPS: Octeon: Update OCTEON_FEATURE_PCIE for Octeon III
MIPS: pci-mt7620: Fix return value check in mt7620_pci_probe()
MIPS: Fix early CM probing
MIPS: Wire up copy_file_range syscall.
MIPS: Fix 64k page support for 32 bit kernels.
MIPS: R6000: Don't allow 64k pages for R6000.
MIPS: traps.c: Correct microMIPS RDHWR emulation
MIPS: traps.c: Don't emulate RDHWR in the CpU #0 exception handler
MAINTAINERS: Remove stale entry for BCM33xx chips
MIPS: Fix FPU disable with preemption
MIPS: Properly disable FPU in start_thread()
MIPS: Fix buffer overflow in syscall_get_arguments()
Pull ARM fixes from Russell King:
"A couple of ARM fixes from Linus for the ICST clock generator code"
[ "Linus" here is Linus Walleij. Name-stealer.
Linus "there can be only one" Torvalds ]
* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
ARM: 8519/1: ICST: try other dividends than 1
ARM: 8517/1: ICST: avoid arithmetic overflow in icst_hz()
Pull component helper fixes from Russell King:
"A few fixes for problems people have encountered with the recent
update to the component helpers"
* 'component' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
component: remove device from master match list on failed add
component: Detach components when deleting master struct
component: fix crash on x86_64 with hda audio drivers
- One fix to ipoib multicast joins
- One fix to mlx4 error handling
- One fix to mlx5 size computation
- One fix to a thinko in core code
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull more rdma fixes from Doug Ledford:
"I think we are getting pretty close to done now. There are four
one-off fixes in this update:
- fix ipoib multicast joins
- fix mlx4 error handling
- fix mlx5 size computation
- fix a thinko in core code"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma:
IB/mlx5: Fix RC transport send queue overhead computation
IB/ipoib: fix for rare multicast join race condition
IB/core: Fix reading capability mask of the port info class
net/mlx4: fix some error handling in mlx4_multi_func_init()
Pull SCSI target fixes from Nicholas Bellinger:
"This includes the long awaited series to address a set of bugs around
active I/O remote-port LUN_RESET, as well as properly handling this
same case with concurrent fabric driver session disconnect ->
reconnect.
Note this set of LUN_RESET bug-fixes has been surviving extended
testing on both v4.5-rc1 and v3.14.y code over the last weeks, and is
CC'ed for stable as it's something folks using multiple ESX connected
hosts with slow backends can certainly trigger.
The highlights also include:
- Fix WRITE_SAME/DISCARD emulation 4k sector conversion in
target/iblock (Mike Christie)
- Fix TMR abort interaction and AIO type TMR response in qla2xxx
target (Quinn Tran + Swapnil Nagle)
- Fix >= v3.17 stale descriptor pointer regression in qla2xxx target
(Quinn Tran)
- Fix >= v4.5-rc1 return regression with unmap_zeros_data_store new
configfs store handler (nab)
- Add CPU affinity flag + convert qla2xxx to use bit (Quinn + HCH +
Bart)"
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
qla2xxx: use TARGET_SCF_USE_CPUID flag to indiate CPU Affinity
target/transport: add flag to indicate CPU Affinity is observed
target: Fix incorrect unmap_zeroes_data_store return
qla2xxx: Use ATIO type to send correct tmr response
qla2xxx: Fix stale pointer access.
target/user: Fix cast from pointer to phys_addr_t
target: Drop legacy se_cmd->task_stop_comp + REQUEST_STOP usage
target: Fix race with SCF_SEND_DELAYED_TAS handling
target: Fix remote-port TMR ABORT + se_cmd fabric stop
target: Fix TAS handling for multi-session se_node_acls
target: Fix LUN_RESET active TMR descriptor handling
target: Fix LUN_RESET active I/O handling for ACK_KREF
qla2xxx: Fix TMR ABORT interaction issue between qla2xxx and TCM
qla2xxx: Fix warning reported by static checker
target: Fix WRITE_SAME/DISCARD conversion to linux 512b sectors
Pull thermal management fixes from Eduardo Valentin:
"Specifics in this pull request:
- Compilation fixes on SPEAR, and U8500 thermal drivers.
- RCAR thermal driver now recognizes OF-thermal based thermal zones.
- Small code rework on OF-thermal.
- These change have been CI tested using KernelCI bot [1,2]. \o/
I am taking over on Rui's behalf while he is out. Happy New Chinese
Year!
[1] - https://kernelci.org/build/evalenti/kernel/v4.5-rc3-16-ga53b8394ec3c/
[2] - https://kernelci.org/boot/all/job/evalenti/kernel/v4.5-rc3-16-ga53b8394ec3c/"
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
thermal: cpu_cooling: fix out of bounds access in time_in_idle
thermal: allow u8500-thermal driver to be a module
thermal: allow spear-thermal driver to be a module
thermal: spear: use __maybe_unused for PM functions
thermal: rcar: enable to use thermal-zone on DT
thermal: of: use for_each_available_child_of_node for child iterator
This contains the last-minute fix for the double-free of usb-audio
MIDI device at probe failure.
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Merge tag 'sound-fix-4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull another sound fix from Takashi Iwai:
"This contains a fix for the double-free of usb-audio MIDI device at
probe failure"
* tag 'sound-fix-4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: usb-audio: avoid freeing umidi object twice
- Corner case of returning to delay slot from interrupt
- Changing default interrupt prioiry level
- Kconfig'ize support for super pages
- Other minor fixes
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Merge tag 'arc-4.5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull ARC fixes from Vineet Gupta:
"I've been sitting on some of these fixes for a while.
- Corner case of returning to delay slot from interrupt
- Changing default interrupt prioiry level
- Kconfig'ize support for super pages
- Other minor fixes"
* tag 'arc-4.5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARC: mm: Introduce explicit super page size support
ARCv2: intc: Allow interruption by lowest priority interrupt
ARCv2: Check for LL-SC livelock only if LLSC is enabled
ARC: shrink cpuinfo by not saving full timer BCR
ARCv2: clocksource: Rename GRTC -> GFRC ...
ARCv2: STAR 9000950267: Handle return from intr to Delay Slot #2
The 'umidi' object will be free'd on the error path by snd_usbmidi_free()
when tearing down the rawmidi interface. So we shouldn't try to free it
in snd_usbmidi_create() after having registered the rawmidi interface.
Found by KASAN.
Signed-off-by: Andrey Konovalov <andreyknvl@gmail.com>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
AER
Flush workqueue on device remove to avoid use-after-free (Sebastian Andrzej Siewior)
Broadcom iProc host bridge driver
Allow multiple devices except on PAXC (Ray Jui)
Renesas R-Car host bridge driver
Add gen2 device tree support for r8a7793 (Simon Horman)
Add device tree support for r8a7793 (Simon Horman)
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Merge tag 'pci-v4.5-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fixes from Bjorn Helgaas:
"These are some Renesas binding updates for PCI host controllers, a
Broadcom fix for a regression we added in v4.5-rc1, and a fix for an
AER use-after-free problem that can cause memory corruption.
Summary:
AER:
Flush workqueue on device remove to avoid use-after-free (Sebastian Andrzej Siewior)
Broadcom iProc host bridge driver:
Allow multiple devices except on PAXC (Ray Jui)
Renesas R-Car host bridge driver:
Add gen2 device tree support for r8a7793 (Simon Horman)
Add device tree support for r8a7793 (Simon Horman)"
* tag 'pci-v4.5-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: rcar: Add device tree support for r8a7793
PCI: rcar: Add gen2 device tree support for r8a7793
PCI: iproc: Allow multiple devices except on PAXC
PCI/AER: Flush workqueue on device remove to avoid use-after-free
Commit 5de85b9d57 ("PM / runtime: Re-init runtime PM states at probe
error and driver unbind") introduced pm_runtime_reinit() that is used
to reinitialize PM runtime after -EPROBE_DEFER. This allows shutting
down the device after a failed probe.
However, for drivers using pm_runtime_use_autosuspend() this can cause
a state where suspend callback is never called after -EPROBE_DEFER.
On the following device driver probe, hardware state is different from
the PM runtime state causing omap_device to produce the following
error:
omap_device_enable() called from invalid state 1
And with omap_device and omap hardware being picky for PM, this will
block any deeper idle states in hardware.
The solution is to fix the drivers to follow the PM runtime documentation:
1. For sections of code that needs the device disabled, use
pm_runtime_put_sync_suspend() if pm_runtime_set_autosuspend() has
been set.
2. For driver exit code, use pm_runtime_dont_use_autosuspend() before
pm_runtime_put_sync() if pm_runtime_use_autosuspend() has been
set.
Fixes: 5de85b9d57 ("PM / runtime: Re-init runtime PM states at probe
error and driver unbind")
Cc: linux-spi@vger.kernel.org
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Nishanth Menon <nm@ti.com>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Merge fixes from Andrew Morton:
"10 fixes"
The lockdep hlist conversion is in the locking tree too, waiting for the
next merge window. Andrew thought it should go in now. I'll take it,
since it fixes a real problem and looks trivially correct (famous last
words).
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
arch/x86/Kconfig: CONFIG_X86_UV should depend on CONFIG_EFI
mm: fix pfn_t vs highmem
kernel/locking/lockdep.c: convert hash tables to hlists
mm,thp: fix spellos in describing __HAVE_ARCH_FLUSH_PMD_TLB_RANGE
mm,thp: khugepaged: call pte flush at the time of collapse
mm/backing-dev.c: fix error path in wb_init()
mm, dax: check for pmd_none() after split_huge_pmd()
vsprintf: kptr_restrict is okay in IRQ when 2
mm: fix filemap.c kernel doc warning
ubsan: cosmetic fix to Kconfig text
Fix the RC QPs send queue overhead computation to take into account
two additional segments in the WQE which are needed for registration
operations.
The ATOMIC and UMR segments can't coexist together, so chose maximum out
of them.
The commit 9e65dc371b ("IB/mlx5: Fix RC transport send queue overhead
computation") was intended to update RC transport as commit messages
states, but added the code to UC transport.
Fixes: 9e65dc371b ("IB/mlx5: Fix RC transport send queue overhead computation")
Signed-off-by: Kamal Heib <kamalh@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
A narrow window for race condition still exist between
multicast join thread and *dev_flush workers.
A kernel crash caused by prolong erratic link state changes
was observed (most likely a faulty cabling):
[167275.656270] BUG: unable to handle kernel NULL pointer dereference at
0000000000000020
[167275.665973] IP: [<ffffffffa05f8f2e>] ipoib_mcast_join+0xae/0x1d0 [ib_ipoib]
[167275.674443] PGD 0
[167275.677373] Oops: 0000 [#1] SMP
...
[167275.977530] Call Trace:
[167275.982225] [<ffffffffa05f92f0>] ? ipoib_mcast_free+0x200/0x200 [ib_ipoib]
[167275.992024] [<ffffffffa05fa1b7>] ipoib_mcast_join_task+0x2a7/0x490
[ib_ipoib]
[167276.002149] [<ffffffff8109d5fb>] process_one_work+0x17b/0x470
[167276.010754] [<ffffffff8109e3cb>] worker_thread+0x11b/0x400
[167276.019088] [<ffffffff8109e2b0>] ? rescuer_thread+0x400/0x400
[167276.027737] [<ffffffff810a5aef>] kthread+0xcf/0xe0
Here was a hit spot:
ipoib_mcast_join() {
..............
rec.qkey = priv->broadcast->mcmember.qkey;
^^^^^^^
.....
}
Proposed patch should prevent multicast join task to continue
if link state change is detected.
Signed-off-by: Alex Estrin <alex.estrin@intel.com>
Changes from v4:
- as suggested by Doug Ledford, optimized spinlock usage,
i.e. ipoib_mcast_join() is called with lock held.
Changes from v3:
- sync with priv->lock before flag check.
Chages from v2:
- Move check for OPER_UP flag state to mcast_join() to
ensure no event worker is in progress.
- minor style fixes.
Changes from v1:
- No need to lock again if error detected.
Signed-off-by: Doug Ledford <dledford@redhat.com>
In this rc, we've got more volume than previous rc, unsurprisingly;
the majority of updates in ASoC are about Intel drivers, and another
major changes are the continued plumbing of ALSA timer bugs revealed
by syzkaller fuzzer. Hopefully both settle down now.
Other than that, HD-audio received a couple of code fixes as well as
the usual quirks, and various small fixes are found for FireWire
devices, ASoC codecs and drivers.
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Merge tag 'sound-4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"In this rc, we've got more volume than previous rc, unsurprisingly;
the majority of updates in ASoC are about Intel drivers, and another
major changes are the continued plumbing of ALSA timer bugs revealed
by syzkaller fuzzer. Hopefully both settle down now.
Other than that, HD-audio received a couple of code fixes as well as
the usual quirks, and various small fixes are found for FireWire
devices, ASoC codecs and drivers"
* tag 'sound-4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (50 commits)
ASoC: arizona: fref must be limited in pseudo-fractional mode
ASoC: sigmadsp: Fix missleading return value
ALSA: timer: Fix race at concurrent reads
ALSA: firewire-digi00x: Drop bogus const type qualifier on dot_scrt()
ALSA: hda - Fix bad dereference of jack object
ALSA: timer: Fix race between stop and interrupt
ALSA: timer: Fix wrong instance passed to slave callbacks
ASoC: Intel: Add module tags for common match module
ASoC: Intel: Load the atom DPCM driver only
ASoC: Intel: Create independent acpi match module
ASoC: Intel: Revert "ASoC: Intel: fix ACPI probe regression with Atom DPCM driver"
ALSA: dummy: Implement timer backend switching more safely
ALSA: hda - Fix speaker output from VAIO AiO machines
Revert "ALSA: hda - Fix noise on Gigabyte Z170X mobo"
ALSA: firewire-tascam: remove needless member for control and status message
ALSA: firewire-tascam: remove a flag for controller
ALSA: firewire-tascam: add support for FW-1804
ALSA: firewire-tascam: fix NULL pointer dereference when model identification fails
ALSA: hda - Fix static checker warning in patch_hdmi.c
ASoC: Intel: Skylake: Remove autosuspend delay
...
* fix omap2plus_defconfig to enable omapfb as it was in v4.4
* ocfb: fix timings for margins
* s6e8ax0, da8xx-fb: fix compile warnings
* mmp: fix build failure caused by bad printk parameters
* imxfb: fix clock issue which kept the display off
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Merge tag 'fbdev-fixes-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux
Pull fbdev fixes from Tomi Valkeinen:
- fix omap2plus_defconfig to enable omapfb as it was in v4.4
- ocfb: fix timings for margins
- s6e8ax0, da8xx-fb: fix compile warnings
- mmp: fix build failure caused by bad printk parameters
- imxfb: fix clock issue which kept the display off
* tag 'fbdev-fixes-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux:
video: fbdev: imxfb: Provide a reset mechanism
fbdev: mmp: print IRQ resource using %pR format string
fbdev: da8xx-fb: remove incorrect type cast
fbdev: s6e8ax0: avoid unused function warnings
ocfb: fix tgdel and tvdel timing parameters
ARM: omap2plus_defconfig: update display configs
A set of seven fixes. Two regressions in the new hisi_sas arm driver, a
blacklist entry for the marvell console which was causing a reset cascade
without it, a race fix in the WRITE_SAME/DISCARD routines, a retry fix for the
rdac driver, without which, it would prematurely return EIO and a couple of
fixes for the hyper-v storvsc driver.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.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 set of seven fixes:
Two regressions in the new hisi_sas arm driver, a blacklist entry for
the marvell console which was causing a reset cascade without it, a
race fix in the WRITE_SAME/DISCARD routines, a retry fix for the rdac
driver, without which, it would prematurely return EIO and a couple of
fixes for the hyper-v storvsc driver"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
block/sd: Return -EREMOTEIO when WRITE SAME and DISCARD are disabled
SCSI: Add Marvell Console to VPD blacklist
scsi_dh_rdac: always retry MODE SELECT on command lock violation
storvsc: Use the specified target ID in device lookup
storvsc: Install the storvsc specific timeout handler for FC devices
hisi_sas: fix v1 hw check for slot error
hisi_sas: add dependency for HAS_IOMEM
Pull drm amd fixes from Dave Airlie:
"Been pretty quiet.
This is an amdgpu fixes pull from AMD, a bunch of powerplay stability
fixes, race fix, hibernate fix, and a possible circular locking fix"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (21 commits)
drm/amdgpu: fix issue with overlapping userptrs
drm/radeon: hold reference to fences in radeon_sa_bo_new
drm/amdgpu: remove unnecessary forward declaration
drm/amdgpu: hold reference to fences in amdgpu_sa_bo_new (v2)
drm/amdgpu: fix s4 resume
drm/amdgpu/cz: plumb pg flags through to powerplay
drm/amdgpu/tonga: plumb pg flags through to powerplay
drma/dmgpu: move cg and pg flags into shared headers
drm/amdgpu: remove unused cg defines
drm/amdgpu: add a cgs interface to fetch cg and pg flags
drm/amd/powerplay/tonga: disable vce pg
drm/amd/powerplay/tonga: disable uvd pg
drm/amd/powerplay/cz: disable vce pg
drm/amd/powerplay/cz: disable uvd pg
drm/amdgpu: be consistent with uvd cg flags
drm/amdgpu: clean up vce pg flags for cz/st
drm/amdgpu: handle vce pg flags properly
drm/amdgpu: handle uvd pg flags properly
drm/amdgpu/dpm/ci: switch over to the common pcie caps interface
drm/amdgpu/cik: don't mess with aspm if gpu is root bus
...
Pull crypto fix from James Morris.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
EVM: Use crypto_memneq() for digest comparisons
Pull btrfs fixes from Chris Mason:
"This has a few fixes from Filipe, along with a readdir fix from Dave
that we've been testing for some time"
* 'for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
btrfs: properly set the termination value of ctx->pos in readdir
Btrfs: fix hang on extent buffer lock caused by the inode_paths ioctl
Btrfs: remove no longer used function extent_read_full_page_nolock()
Btrfs: fix page reading in extent_same ioctl leading to csum errors
Btrfs: fix invalid page accesses in extent_same (dedup) ioctl
Contains:
o fix for endian conversion issue in new CRC validation in
log recovery that was discovered on a ppc64 platform.
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Merge tag 'xfs-fixes-for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs
Pull xfs fix from Dve Chinner:
"This contains a fix for an endian conversion issue in new CRC
validation in log recovery that was discovered on a ppc64 platform"
* tag 'xfs-fixes-for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs:
xfs: fix endianness error when checking log block crc on big endian platforms
A rather large batch of fixes here, almost all in the Intel driver.
The changes that got merged in this merge window for Skylake were rather
large and as well as issues that you'd expect in a large block of new
code there were some problems created for older processors which needed
fixing up. Things are largely settling down now hopefully.
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Merge tag 'asoc-fix-v4.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v4.5
A rather large batch of fixes here, almost all in the Intel driver.
The changes that got merged in this merge window for Skylake were rather
large and as well as issues that you'd expect in a large block of new
code there were some problems created for older processors which needed
fixing up. Things are largely settling down now hopefully.
This patch fixes vulnerability CVE-2016-2085. The problem exists
because the vm_verify_hmac() function includes a use of memcmp().
Unfortunately, this allows timing side channel attacks; specifically
a MAC forgery complexity drop from 2^128 to 2^12. This patch changes
the memcmp() to the cryptographically safe crypto_memneq().
Reported-by: Xiaofei Rex Guo <xiaofei.rex.guo@intel.com>
Signed-off-by: Ryan Ware <ware@linux.intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
Hugh Dickins