Changes in 4.19.53
drm/nouveau: add kconfig option to turn off nouveau legacy contexts. (v3)
nouveau: Fix build with CONFIG_NOUVEAU_LEGACY_CTX_SUPPORT disabled
HID: multitouch: handle faulty Elo touch device
HID: wacom: Don't set tool type until we're in range
HID: wacom: Don't report anything prior to the tool entering range
HID: wacom: Send BTN_TOUCH in response to INTUOSP2_BT eraser contact
HID: wacom: Correct button numbering 2nd-gen Intuos Pro over Bluetooth
HID: wacom: Sync INTUOSP2_BT touch state after each frame if necessary
Revert "ALSA: hda/realtek - Improve the headset mic for Acer Aspire laptops"
ALSA: oxfw: allow PCM capture for Stanton SCS.1m
ALSA: hda/realtek - Update headset mode for ALC256
ALSA: firewire-motu: fix destruction of data for isochronous resources
libata: Extend quirks for the ST1000LM024 drives with NOLPM quirk
mm/list_lru.c: fix memory leak in __memcg_init_list_lru_node
fs/ocfs2: fix race in ocfs2_dentry_attach_lock()
mm/vmscan.c: fix trying to reclaim unevictable LRU page
signal/ptrace: Don't leak unitialized kernel memory with PTRACE_PEEK_SIGINFO
ptrace: restore smp_rmb() in __ptrace_may_access()
iommu/arm-smmu: Avoid constant zero in TLBI writes
i2c: acorn: fix i2c warning
bcache: fix stack corruption by PRECEDING_KEY()
bcache: only set BCACHE_DEV_WB_RUNNING when cached device attached
cgroup: Use css_tryget() instead of css_tryget_online() in task_get_css()
ASoC: cs42xx8: Add regcache mask dirty
ASoC: fsl_asrc: Fix the issue about unsupported rate
drm/i915/sdvo: Implement proper HDMI audio support for SDVO
x86/uaccess, kcov: Disable stack protector
ALSA: seq: Protect in-kernel ioctl calls with mutex
ALSA: seq: Fix race of get-subscription call vs port-delete ioctls
Revert "ALSA: seq: Protect in-kernel ioctl calls with mutex"
s390/kasan: fix strncpy_from_user kasan checks
Drivers: misc: fix out-of-bounds access in function param_set_kgdbts_var
f2fs: fix to avoid accessing xattr across the boundary
scsi: qedi: remove memset/memcpy to nfunc and use func instead
scsi: qedi: remove set but not used variables 'cdev' and 'udev'
scsi: lpfc: correct rcu unlock issue in lpfc_nvme_info_show
scsi: lpfc: add check for loss of ndlp when sending RRQ
arm64/mm: Inhibit huge-vmap with ptdump
nvme: fix srcu locking on error return in nvme_get_ns_from_disk
nvme: remove the ifdef around nvme_nvm_ioctl
nvme: merge nvme_ns_ioctl into nvme_ioctl
nvme: release namespace SRCU protection before performing controller ioctls
nvme: fix memory leak for power latency tolerance
platform/x86: pmc_atom: Add Lex 3I380D industrial PC to critclk_systems DMI table
platform/x86: pmc_atom: Add several Beckhoff Automation boards to critclk_systems DMI table
scsi: bnx2fc: fix incorrect cast to u64 on shift operation
libnvdimm: Fix compilation warnings with W=1
selftests: fib_rule_tests: fix local IPv4 address typo
selftests/timers: Add missing fflush(stdout) calls
tracing: Prevent hist_field_var_ref() from accessing NULL tracing_map_elts
usbnet: ipheth: fix racing condition
KVM: arm/arm64: Move cc/it checks under hyp's Makefile to avoid instrumentation
KVM: x86/pmu: mask the result of rdpmc according to the width of the counters
KVM: x86/pmu: do not mask the value that is written to fixed PMUs
KVM: s390: fix memory slot handling for KVM_SET_USER_MEMORY_REGION
tools/kvm_stat: fix fields filter for child events
drm/vmwgfx: integer underflow in vmw_cmd_dx_set_shader() leading to an invalid read
drm/vmwgfx: NULL pointer dereference from vmw_cmd_dx_view_define()
usb: dwc2: Fix DMA cache alignment issues
usb: dwc2: host: Fix wMaxPacketSize handling (fix webcam regression)
USB: Fix chipmunk-like voice when using Logitech C270 for recording audio.
USB: usb-storage: Add new ID to ums-realtek
USB: serial: pl2303: add Allied Telesis VT-Kit3
USB: serial: option: add support for Simcom SIM7500/SIM7600 RNDIS mode
USB: serial: option: add Telit 0x1260 and 0x1261 compositions
timekeeping: Repair ktime_get_coarse*() granularity
RAS/CEC: Convert the timer callback to a workqueue
RAS/CEC: Fix binary search function
x86/microcode, cpuhotplug: Add a microcode loader CPU hotplug callback
x86/kasan: Fix boot with 5-level paging and KASAN
x86/mm/KASLR: Compute the size of the vmemmap section properly
x86/resctrl: Prevent NULL pointer dereference when local MBM is disabled
drm/edid: abstract override/firmware EDID retrieval
drm: add fallback override/firmware EDID modes workaround
rtc: pcf8523: don't return invalid date when battery is low
Linux 4.19.53
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
commit 48eaeb7664 upstream.
We've moved the override and firmware EDID (simply "override EDID" from
now on) handling to the low level drm_do_get_edid() function in order to
transparently use the override throughout the stack. The idea is that
you get the override EDID via the ->get_modes() hook.
Unfortunately, there are scenarios where the DDC probe in drm_get_edid()
called via ->get_modes() fails, although the preceding ->detect()
succeeds.
In the case reported by Paul Wise, the ->detect() hook,
intel_crt_detect(), relies on hotplug detect, bypassing the DDC. In the
case reported by Ilpo Järvinen, there is no ->detect() hook, which is
interpreted as connected. The subsequent DDC probe reached via
->get_modes() fails, and we don't even look at the override EDID,
resulting in no modes being added.
Because drm_get_edid() is used via ->detect() all over the place, we
can't trivially remove the DDC probe, as it leads to override EDID
effectively meaning connector forcing. The goal is that connector
forcing and override EDID remain orthogonal.
Generally, the underlying problem here is the conflation of ->detect()
and ->get_modes() via drm_get_edid(). The former should just detect, and
the latter should just get the modes, typically via reading the EDID. As
long as drm_get_edid() is used in ->detect(), it needs to retain the DDC
probe. Or such users need to have a separate DDC probe step first.
The EDID caching between ->detect() and ->get_modes() done by some
drivers is a further complication that prevents us from making
drm_do_get_edid() adapt to the two cases.
Work around the regression by falling back to a separate attempt at
getting the override EDID at drm_helper_probe_single_connector_modes()
level. With a working DDC and override EDID, it'll never be called; the
override EDID will come via ->get_modes(). There will still be a failing
DDC probe attempt in the cases that require the fallback.
v2:
- Call drm_connector_update_edid_property (Paul)
- Update commit message about EDID caching (Daniel)
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107583
Reported-by: Paul Wise <pabs3@bonedaddy.net>
Cc: Paul Wise <pabs3@bonedaddy.net>
References: http://mid.mail-archive.com/alpine.DEB.2.20.1905262211270.24390@whs-18.cs.helsinki.fi
Reported-by: Ilpo Järvinen <ilpo.jarvinen@cs.helsinki.fi>
Cc: Ilpo Järvinen <ilpo.jarvinen@cs.helsinki.fi>
Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
References: 15f080f08d ("drm/edid: respect connector force for drm_get_edid ddc probe")
Fixes: 53fd40a90f ("drm: handle override and firmware EDID at drm_do_get_edid() level")
Cc: <stable@vger.kernel.org> # v4.15+ 56a2b7f2a3 drm/edid: abstract override/firmware EDID retrieval
Cc: <stable@vger.kernel.org> # v4.15+
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Harish Chegondi <harish.chegondi@intel.com>
Tested-by: Paul Wise <pabs3@bonedaddy.net>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190610093054.28445-1-jani.nikula@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 78f4e932f7 upstream.
Adric Blake reported the following warning during suspend-resume:
Enabling non-boot CPUs ...
x86: Booting SMP configuration:
smpboot: Booting Node 0 Processor 1 APIC 0x2
unchecked MSR access error: WRMSR to 0x10f (tried to write 0x0000000000000000) \
at rIP: 0xffffffff8d267924 (native_write_msr+0x4/0x20)
Call Trace:
intel_set_tfa
intel_pmu_cpu_starting
? x86_pmu_dead_cpu
x86_pmu_starting_cpu
cpuhp_invoke_callback
? _raw_spin_lock_irqsave
notify_cpu_starting
start_secondary
secondary_startup_64
microcode: sig=0x806ea, pf=0x80, revision=0x96
microcode: updated to revision 0xb4, date = 2019-04-01
CPU1 is up
The MSR in question is MSR_TFA_RTM_FORCE_ABORT and that MSR is emulated
by microcode. The log above shows that the microcode loader callback
happens after the PMU restoration, leading to the conjecture that
because the microcode hasn't been updated yet, that MSR is not present
yet, leading to the #GP.
Add a microcode loader-specific hotplug vector which comes before
the PERF vectors and thus executes earlier and makes sure the MSR is
present.
Fixes: 400816f60c ("perf/x86/intel: Implement support for TSX Force Abort")
Reported-by: Adric Blake <promarbler14@gmail.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: <stable@vger.kernel.org>
Cc: x86@kernel.org
Link: https://bugzilla.kernel.org/show_bug.cgi?id=203637
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 18fa84a2db upstream.
A PF_EXITING task can stay associated with an offline css. If such
task calls task_get_css(), it can get stuck indefinitely. This can be
triggered by BSD process accounting which writes to a file with
PF_EXITING set when racing against memcg disable as in the backtrace
at the end.
After this change, task_get_css() may return a css which was already
offline when the function was called. None of the existing users are
affected by this change.
INFO: rcu_sched self-detected stall on CPU
INFO: rcu_sched detected stalls on CPUs/tasks:
...
NMI backtrace for cpu 0
...
Call Trace:
<IRQ>
dump_stack+0x46/0x68
nmi_cpu_backtrace.cold.2+0x13/0x57
nmi_trigger_cpumask_backtrace+0xba/0xca
rcu_dump_cpu_stacks+0x9e/0xce
rcu_check_callbacks.cold.74+0x2af/0x433
update_process_times+0x28/0x60
tick_sched_timer+0x34/0x70
__hrtimer_run_queues+0xee/0x250
hrtimer_interrupt+0xf4/0x210
smp_apic_timer_interrupt+0x56/0x110
apic_timer_interrupt+0xf/0x20
</IRQ>
RIP: 0010:balance_dirty_pages_ratelimited+0x28f/0x3d0
...
btrfs_file_write_iter+0x31b/0x563
__vfs_write+0xfa/0x140
__kernel_write+0x4f/0x100
do_acct_process+0x495/0x580
acct_process+0xb9/0xdb
do_exit+0x748/0xa00
do_group_exit+0x3a/0xa0
get_signal+0x254/0x560
do_signal+0x23/0x5c0
exit_to_usermode_loop+0x5d/0xa0
prepare_exit_to_usermode+0x53/0x80
retint_user+0x8/0x8
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org # v4.2+
Fixes: ec438699a9 ("cgroup, block: implement task_get_css() and use it in bio_associate_current()")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
V4L2_BUF_TYPE_META_OUTPUT was added by commit 72148d1a57
("media: v4l: Add support for V4L2_BUF_TYPE_META_OUTPUT") but the patch
missed adding the type to the macro telling whether a given type is an
output type or not. Do that now. Getting this wrong leads to handling the
buffer as a capture buffer in a lot of places.
Fixes: 72148d1a57 ("media: v4l: Add support for V4L2_BUF_TYPE_META_OUTPUT")
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
(cherry picked from commit 4b837c6d7e)
Change-Id: I963f70c8ea7bfff8ce9818fda1d558780d99f697
Signed-off-by: Hu Kejun <william.hu@rock-chips.com>
The V4L2_BUF_TYPE_META_OUTPUT mirrors the V4L2_BUF_TYPE_META_CAPTURE with
the exception that it is an OUTPUT type. The use case for this is to pass
buffers to the device that are not image data but metadata. The formats,
just as the metadata capture formats, are typically device specific and
highly structured.
Change-Id: I88795d8f23606009626c4d64e0655d9c864c58f1
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Tested-by: Tian Shu Qiu <tian.shu.qiu@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Hu Kejun <william.hu@rock-chips.com>
(cherry picked from commit 72148d1a57)
commit 5f3e2bf008 upstream.
Some TCP peers announce a very small MSS option in their SYN and/or
SYN/ACK messages.
This forces the stack to send packets with a very high network/cpu
overhead.
Linux has enforced a minimal value of 48. Since this value includes
the size of TCP options, and that the options can consume up to 40
bytes, this means that each segment can include only 8 bytes of payload.
In some cases, it can be useful to increase the minimal value
to a saner value.
We still let the default to 48 (TCP_MIN_SND_MSS), for compatibility
reasons.
Note that TCP_MAXSEG socket option enforces a minimal value
of (TCP_MIN_MSS). David Miller increased this minimal value
in commit c39508d6f1 ("tcp: Make TCP_MAXSEG minimum more correct.")
from 64 to 88.
We might in the future merge TCP_MIN_SND_MSS and TCP_MIN_MSS.
CVE-2019-11479 -- tcp mss hardcoded to 48
Signed-off-by: Eric Dumazet <edumazet@google.com>
Suggested-by: Jonathan Looney <jtl@netflix.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Tyler Hicks <tyhicks@canonical.com>
Cc: Bruce Curtis <brucec@netflix.com>
Cc: Jonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit f070ef2ac6 upstream.
Jonathan Looney reported that a malicious peer can force a sender
to fragment its retransmit queue into tiny skbs, inflating memory
usage and/or overflow 32bit counters.
TCP allows an application to queue up to sk_sndbuf bytes,
so we need to give some allowance for non malicious splitting
of retransmit queue.
A new SNMP counter is added to monitor how many times TCP
did not allow to split an skb if the allowance was exceeded.
Note that this counter might increase in the case applications
use SO_SNDBUF socket option to lower sk_sndbuf.
CVE-2019-11478 : tcp_fragment, prevent fragmenting a packet when the
socket is already using more than half the allowed space
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Jonathan Looney <jtl@netflix.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Reviewed-by: Tyler Hicks <tyhicks@canonical.com>
Cc: Bruce Curtis <brucec@netflix.com>
Cc: Jonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 3b4929f65b upstream.
Jonathan Looney reported that TCP can trigger the following crash
in tcp_shifted_skb() :
BUG_ON(tcp_skb_pcount(skb) < pcount);
This can happen if the remote peer has advertized the smallest
MSS that linux TCP accepts : 48
An skb can hold 17 fragments, and each fragment can hold 32KB
on x86, or 64KB on PowerPC.
This means that the 16bit witdh of TCP_SKB_CB(skb)->tcp_gso_segs
can overflow.
Note that tcp_sendmsg() builds skbs with less than 64KB
of payload, so this problem needs SACK to be enabled.
SACK blocks allow TCP to coalesce multiple skbs in the retransmit
queue, thus filling the 17 fragments to maximal capacity.
CVE-2019-11477 -- u16 overflow of TCP_SKB_CB(skb)->tcp_gso_segs
Fixes: 832d11c5cd ("tcp: Try to restore large SKBs while SACK processing")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Jonathan Looney <jtl@netflix.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Reviewed-by: Tyler Hicks <tyhicks@canonical.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Bruce Curtis <brucec@netflix.com>
Cc: Jonathan Lemon <jonathan.lemon@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Changes in 4.19.51
rapidio: fix a NULL pointer dereference when create_workqueue() fails
fs/fat/file.c: issue flush after the writeback of FAT
sysctl: return -EINVAL if val violates minmax
ipc: prevent lockup on alloc_msg and free_msg
drm/pl111: Initialize clock spinlock early
ARM: prevent tracing IPI_CPU_BACKTRACE
mm/hmm: select mmu notifier when selecting HMM
hugetlbfs: on restore reserve error path retain subpool reservation
mem-hotplug: fix node spanned pages when we have a node with only ZONE_MOVABLE
mm/cma.c: fix crash on CMA allocation if bitmap allocation fails
initramfs: free initrd memory if opening /initrd.image fails
mm/cma.c: fix the bitmap status to show failed allocation reason
mm: page_mkclean vs MADV_DONTNEED race
mm/cma_debug.c: fix the break condition in cma_maxchunk_get()
mm/slab.c: fix an infinite loop in leaks_show()
kernel/sys.c: prctl: fix false positive in validate_prctl_map()
thermal: rcar_gen3_thermal: disable interrupt in .remove
drivers: thermal: tsens: Don't print error message on -EPROBE_DEFER
mfd: tps65912-spi: Add missing of table registration
mfd: intel-lpss: Set the device in reset state when init
drm/nouveau/disp/dp: respect sink limits when selecting failsafe link configuration
mfd: twl6040: Fix device init errors for ACCCTL register
perf/x86/intel: Allow PEBS multi-entry in watermark mode
drm/nouveau/kms/gf119-gp10x: push HeadSetControlOutputResource() mthd when encoders change
drm/bridge: adv7511: Fix low refresh rate selection
objtool: Don't use ignore flag for fake jumps
drm/nouveau/kms/gv100-: fix spurious window immediate interlocks
bpf: fix undefined behavior in narrow load handling
EDAC/mpc85xx: Prevent building as a module
pwm: meson: Use the spin-lock only to protect register modifications
mailbox: stm32-ipcc: check invalid irq
ntp: Allow TAI-UTC offset to be set to zero
f2fs: fix to avoid panic in do_recover_data()
f2fs: fix to avoid panic in f2fs_inplace_write_data()
f2fs: fix to avoid panic in f2fs_remove_inode_page()
f2fs: fix to do sanity check on free nid
f2fs: fix to clear dirty inode in error path of f2fs_iget()
f2fs: fix to avoid panic in dec_valid_block_count()
f2fs: fix to use inline space only if inline_xattr is enable
f2fs: fix to do sanity check on valid block count of segment
f2fs: fix to do checksum even if inode page is uptodate
percpu: remove spurious lock dependency between percpu and sched
configfs: fix possible use-after-free in configfs_register_group
uml: fix a boot splat wrt use of cpu_all_mask
PCI: dwc: Free MSI in dw_pcie_host_init() error path
PCI: dwc: Free MSI IRQ page in dw_pcie_free_msi()
ovl: do not generate duplicate fsnotify events for "fake" path
mmc: mmci: Prevent polling for busy detection in IRQ context
netfilter: nf_flow_table: fix missing error check for rhashtable_insert_fast
netfilter: nf_conntrack_h323: restore boundary check correctness
mips: Make sure dt memory regions are valid
netfilter: nf_tables: fix base chain stat rcu_dereference usage
watchdog: imx2_wdt: Fix set_timeout for big timeout values
watchdog: fix compile time error of pretimeout governors
blk-mq: move cancel of requeue_work into blk_mq_release
iommu/vt-d: Set intel_iommu_gfx_mapped correctly
misc: pci_endpoint_test: Fix test_reg_bar to be updated in pci_endpoint_test
PCI: designware-ep: Use aligned ATU window for raising MSI interrupts
nvme-pci: unquiesce admin queue on shutdown
nvme-pci: shutdown on timeout during deletion
netfilter: nf_flow_table: check ttl value in flow offload data path
netfilter: nf_flow_table: fix netdev refcnt leak
ALSA: hda - Register irq handler after the chip initialization
nvmem: core: fix read buffer in place
nvmem: sunxi_sid: Support SID on A83T and H5
fuse: retrieve: cap requested size to negotiated max_write
nfsd: allow fh_want_write to be called twice
nfsd: avoid uninitialized variable warning
vfio: Fix WARNING "do not call blocking ops when !TASK_RUNNING"
iommu/arm-smmu-v3: Don't disable SMMU in kdump kernel
switchtec: Fix unintended mask of MRPC event
net: thunderbolt: Unregister ThunderboltIP protocol handler when suspending
x86/PCI: Fix PCI IRQ routing table memory leak
i40e: Queues are reserved despite "Invalid argument" error
platform/chrome: cros_ec_proto: check for NULL transfer function
PCI: keystone: Prevent ARM32 specific code to be compiled for ARM64
soc: mediatek: pwrap: Zero initialize rdata in pwrap_init_cipher
clk: rockchip: Turn on "aclk_dmac1" for suspend on rk3288
soc: rockchip: Set the proper PWM for rk3288
ARM: dts: imx51: Specify IMX5_CLK_IPG as "ahb" clock to SDMA
ARM: dts: imx50: Specify IMX5_CLK_IPG as "ahb" clock to SDMA
ARM: dts: imx53: Specify IMX5_CLK_IPG as "ahb" clock to SDMA
ARM: dts: imx6sx: Specify IMX6SX_CLK_IPG as "ahb" clock to SDMA
ARM: dts: imx6sll: Specify IMX6SLL_CLK_IPG as "ipg" clock to SDMA
ARM: dts: imx7d: Specify IMX7D_CLK_IPG as "ipg" clock to SDMA
ARM: dts: imx6ul: Specify IMX6UL_CLK_IPG as "ipg" clock to SDMA
ARM: dts: imx6sx: Specify IMX6SX_CLK_IPG as "ipg" clock to SDMA
ARM: dts: imx6qdl: Specify IMX6QDL_CLK_IPG as "ipg" clock to SDMA
PCI: rpadlpar: Fix leaked device_node references in add/remove paths
drm/amd/display: Use plane->color_space for dpp if specified
ARM: OMAP2+: pm33xx-core: Do not Turn OFF CEFUSE as PPA may be using it
platform/x86: intel_pmc_ipc: adding error handling
power: supply: max14656: fix potential use-before-alloc
net: hns3: return 0 and print warning when hit duplicate MAC
PCI: rcar: Fix a potential NULL pointer dereference
PCI: rcar: Fix 64bit MSI message address handling
scsi: qla2xxx: Reset the FCF_ASYNC_{SENT|ACTIVE} flags
video: hgafb: fix potential NULL pointer dereference
video: imsttfb: fix potential NULL pointer dereferences
block, bfq: increase idling for weight-raised queues
PCI: xilinx: Check for __get_free_pages() failure
gpio: gpio-omap: add check for off wake capable gpios
ice: Add missing case in print_link_msg for printing flow control
dmaengine: idma64: Use actual device for DMA transfers
pwm: tiehrpwm: Update shadow register for disabling PWMs
ARM: dts: exynos: Always enable necessary APIO_1V8 and ABB_1V8 regulators on Arndale Octa
pwm: Fix deadlock warning when removing PWM device
ARM: exynos: Fix undefined instruction during Exynos5422 resume
usb: typec: fusb302: Check vconn is off when we start toggling
soc: renesas: Identify R-Car M3-W ES1.3
gpio: vf610: Do not share irq_chip
percpu: do not search past bitmap when allocating an area
Revert "Bluetooth: Align minimum encryption key size for LE and BR/EDR connections"
Revert "drm/nouveau: add kconfig option to turn off nouveau legacy contexts. (v3)"
ovl: check the capability before cred overridden
ovl: support stacked SEEK_HOLE/SEEK_DATA
drm/vc4: fix fb references in async update
ALSA: seq: Cover unsubscribe_port() in list_mutex
Linux 4.19.51
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This reverts commit 38f092c41c which is
commit d5bb334a8e upstream.
Lots of people have reported issues with this patch, and as there does
not seem to be a fix going into Linus's kernel tree any time soon,
revert the commit in the stable trees so as to get people's machines
working properly again.
Reported-by: Vasily Khoruzhick <anarsoul@gmail.com>
Reported-by: Hans de Goede <hdegoede@redhat.com>
Cc: Jeremy Cline <jeremy@jcline.org>
Cc: Marcel Holtmann <marcel@holtmann.org>
Cc: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add support to change voltage even if old_rate is equal to target_rate.
Change-Id: I8f0020097a196420bc86f41d2dbc681730d410de
Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>
Rockchip Socs have GPU, we need allocate GPU accelerated buffers.
So add special ioctls GEM_CREATE/GEM_MAP_OFFSET to support
accelerated buffers.
Change-Id: Ia4b13798aac97d16214da7a75a2479e6e334313a
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
Signed-off-by: Sandy Huang <hjc@rock-chips.com>
Changes in 4.19.50
ethtool: fix potential userspace buffer overflow
Fix memory leak in sctp_process_init
ipv4: not do cache for local delivery if bc_forwarding is enabled
ipv6: fix the check before getting the cookie in rt6_get_cookie
neighbor: Call __ipv4_neigh_lookup_noref in neigh_xmit
net: ethernet: ti: cpsw_ethtool: fix ethtool ring param set
net/mlx4_en: ethtool, Remove unsupported SFP EEPROM high pages query
net: mvpp2: Use strscpy to handle stat strings
net: rds: fix memory leak in rds_ib_flush_mr_pool
net: sfp: read eeprom in maximum 16 byte increments
net/tls: replace the sleeping lock around RX resync with a bit lock
packet: unconditionally free po->rollover
pktgen: do not sleep with the thread lock held.
Revert "fib_rules: return 0 directly if an exactly same rule exists when NLM_F_EXCL not supplied"
ipv6: use READ_ONCE() for inet->hdrincl as in ipv4
ipv6: fix EFAULT on sendto with icmpv6 and hdrincl
mtd: spinand: macronix: Fix ECC Status Read
rcu: locking and unlocking need to always be at least barriers
parisc: Use implicit space register selection for loading the coherence index of I/O pdirs
NFSv4.1: Again fix a race where CB_NOTIFY_LOCK fails to wake a waiter
NFSv4.1: Fix bug only first CB_NOTIFY_LOCK is handled
fuse: fallocate: fix return with locked inode
pstore: Remove needless lock during console writes
pstore: Convert buf_lock to semaphore
pstore: Set tfm to NULL on free_buf_for_compression
pstore/ram: Run without kernel crash dump region
x86/power: Fix 'nosmt' vs hibernation triple fault during resume
x86/insn-eval: Fix use-after-free access to LDT entry
i2c: xiic: Add max_read_len quirk
s390/mm: fix address space detection in exception handling
xen-blkfront: switch kcalloc to kvcalloc for large array allocation
MIPS: Bounds check virt_addr_valid
MIPS: pistachio: Build uImage.gz by default
Revert "MIPS: perf: ath79: Fix perfcount IRQ assignment"
genwqe: Prevent an integer overflow in the ioctl
test_firmware: Use correct snprintf() limit
drm/gma500/cdv: Check vbt config bits when detecting lvds panels
drm/msm: fix fb references in async update
drm: add non-desktop quirk for Valve HMDs
drm/nouveau: add kconfig option to turn off nouveau legacy contexts. (v3)
drm: add non-desktop quirks to Sensics and OSVR headsets.
drm/amdgpu/psp: move psp version specific function pointers to early_init
drm/radeon: prefer lower reference dividers
drm/amdgpu: remove ATPX_DGPU_REQ_POWER_FOR_DISPLAYS check when hotplug-in
drm/i915: Fix I915_EXEC_RING_MASK
drm/i915/fbc: disable framebuffer compression on GeminiLake
drm/i915: Maintain consistent documentation subsection ordering
drm: don't block fb changes for async plane updates
drm/i915/gvt: Initialize intel_gvt_gtt_entry in stack
TTY: serial_core, add ->install
ipv4: Define __ipv4_neigh_lookup_noref when CONFIG_INET is disabled
ethtool: check the return value of get_regs_len
Linux 4.19.50
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
commit 89a4aac0ab upstream.
In the case of a normal sync update, the preparation of framebuffers (be
it calling drm_atomic_helper_prepare_planes() or doing setups with
drm_framebuffer_get()) are performed in the new_state and the respective
cleanups are performed in the old_state.
In the case of async updates, the preparation is also done in the
new_state but the cleanups are done in the new_state (because updates
are performed in place, i.e. in the current state).
The current code blocks async udpates when the fb is changed, turning
async updates into sync updates, slowing down cursor updates and
introducing regressions in igt tests with errors of type:
"CRITICAL: completed 97 cursor updated in a period of 30 flips, we
expect to complete approximately 15360 updates, with the threshold set
at 7680"
Fb changes in async updates were prevented to avoid the following scenario:
- Async update, oldfb = NULL, newfb = fb1, prepare fb1, cleanup fb1
- Async update, oldfb = fb1, newfb = fb2, prepare fb2, cleanup fb2
- Non-async commit, oldfb = fb2, newfb = fb1, prepare fb1, cleanup fb2 (wrong)
Where we have a single call to prepare fb2 but double cleanup call to fb2.
To solve the above problems, instead of blocking async fb changes, we
place the old framebuffer in the new_state object, so when the code
performs cleanups in the new_state it will cleanup the old_fb and we
will have the following scenario instead:
- Async update, oldfb = NULL, newfb = fb1, prepare fb1, no cleanup
- Async update, oldfb = fb1, newfb = fb2, prepare fb2, cleanup fb1
- Non-async commit, oldfb = fb2, newfb = fb1, prepare fb1, cleanup fb2
Where calls to prepare/cleanup are balanced.
Cc: <stable@vger.kernel.org> # v4.14+
Fixes: 25dc194b34 ("drm: Block fb changes for async plane updates")
Suggested-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Helen Koike <helen.koike@collabora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190603165610.24614-6-helen.koike@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
