Regarding to IEEE 802.3-2015 standard section 2
28B.3 Priority resolution - Table 28-3 - Pause resolution
In case of Local device Pause=1 AsymDir=0, Link partner
Pause=1 AsymDir=1, Local device resolution should be enable PAUSE
transmit, disable PAUSE receive.
And in case of Local device Pause=1 AsymDir=1, Link partner
Pause=1 AsymDir=0, Local device resolution should be enable PAUSE
receive, disable PAUSE transmit.
Fixes: 9525ae8395 ("phylink: add phylink infrastructure")
Signed-off-by: Stefan Chulski <stefanc@marvell.com>
Reported-by: Shaul Ben-Mayor <shaulb@marvell.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
We 'allocate' 'count' bytes here. In fact, 'dev_alloc_skb' already add some
extra space for padding, so a bit more is allocated.
However, we use 1 byte for the KISS command, then copy 'count' bytes, so
count+1 bytes.
Explicitly allocate and use 1 more byte to be safe.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexei Starovoitov says:
====================
pull-request: bpf 2019-09-06
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) verifier precision tracking fix, from Alexei.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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
The commit 3764137906 ("drm/modes: Introduce a whitelist for the named
modes") introduced a whitelist in the named modes lookup code in order to
be a bit more robust.
However, even though the char pointers were made const, the array itself
was not. Let's fix that.
Fixes: 3764137906 ("drm/modes: Introduce a whitelist for the named modes")
Suggested-by: Jani Nikula <jani.nikula@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190906074614.30608-1-mripard@kernel.org
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
Fourth set of fixes for 5.3, and hopefully really the last one. Quite
a few CVE fixes this time but at least to my knowledge none of them
have a known exploit.
mt76
* workaround firmware hang by disabling hardware encryption on MT7630E
* disable 5GHz band for MT7630E as it's not working properly
mwifiex
* fix IE parsing to avoid a heap buffer overflow
iwlwifi
* fix for QuZ device initialisation
rt2x00
* another fix for rekeying
* revert a commit causing degradation in rx signal levels
rsi
* fix a double free
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Merge tag 'wireless-drivers-for-davem-2019-09-05' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers
Kalle Valo says:
====================
wireless-drivers fixes for 5.3
Fourth set of fixes for 5.3, and hopefully really the last one. Quite
a few CVE fixes this time but at least to my knowledge none of them
have a known exploit.
mt76
* workaround firmware hang by disabling hardware encryption on MT7630E
* disable 5GHz band for MT7630E as it's not working properly
mwifiex
* fix IE parsing to avoid a heap buffer overflow
iwlwifi
* fix for QuZ device initialisation
rt2x00
* another fix for rekeying
* revert a commit causing degradation in rx signal levels
rsi
* fix a double free
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
I am maintaining xilinx axiethernet driver in xilinx tree and would like
to maintain it in the mainline kernel as well. Hence adding myself as a
maintainer. Also Anirudha and John has moved to new roles, so based on
request removing them from the maintainer list.
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
Acked-by: John Linn <john.linn@xilinx.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Whenever MQ is not used on a multiqueue device, we experience
serious reordering problems. Bisection found the cited
commit.
The issue can be described this way :
- A single qdisc hierarchy is shared by all transmit queues.
(eg : tc qdisc replace dev eth0 root fq_codel)
- When/if try_bulk_dequeue_skb_slow() dequeues a packet targetting
a different transmit queue than the one used to build a packet train,
we stop building the current list and save the 'bad' skb (P1) in a
special queue. (bad_txq)
- When dequeue_skb() calls qdisc_dequeue_skb_bad_txq() and finds this
skb (P1), it checks if the associated transmit queues is still in frozen
state. If the queue is still blocked (by BQL or NIC tx ring full),
we leave the skb in bad_txq and return NULL.
- dequeue_skb() calls q->dequeue() to get another packet (P2)
The other packet can target the problematic queue (that we found
in frozen state for the bad_txq packet), but another cpu just ran
TX completion and made room in the txq that is now ready to accept
new packets.
- Packet P2 is sent while P1 is still held in bad_txq, P1 might be sent
at next round. In practice P2 is the lead of a big packet train
(P2,P3,P4 ...) filling the BQL budget and delaying P1 by many packets :/
To solve this problem, we have to block the dequeue process as long
as the first packet in bad_txq can not be sent. Reordering issues
disappear and no side effects have been seen.
Fixes: a53851e2c3 ("net: sched: explicit locking in gso_cpu fallback")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: John Fastabend <john.fastabend@gmail.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Steffen Klassert says:
====================
pull request (net): ipsec 2019-09-05
1) Several xfrm interface fixes from Nicolas Dichtel:
- Avoid an interface ID corruption on changelink.
- Fix wrong intterface names in the logs.
- Fix a list corruption when changing network namespaces.
- Fix unregistation of the underying phydev.
2) Fix a potential warning when merging xfrm_plocy nodes.
From Florian Westphal.
Please pull or let me know if there are problems.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
When testing with a background iperf pushing 1Gbit/sec traffic and running
both ifconfig and netstat to collect statistics, some deadlocks occurred.
Ifconfig and netstat will call nv_get_stats64 to get software xmit/recv
statistics. In the commit f5d827aece ("forcedeth: implement
ndo_get_stats64() API"), the normal tx/rx variables is to collect tx/rx
statistics. The fix is to replace normal tx/rx variables with per
cpu 64-bit variable to collect xmit/recv statistics. The per cpu variable
will avoid deadlocks and provide fast efficient statistics updates.
In nv_probe, the per cpu variable is initialized. In nv_remove, this
per cpu variable is freed.
In xmit/recv process, this per cpu variable will be updated.
In nv_get_stats64, this per cpu variable on each cpu is added up. Then
the driver can get xmit/recv packets statistics.
A test runs for several days with this commit, the deadlocks disappear
and the performance is better.
Tested:
- iperf SMP x86_64 ->
Client connecting to 1.1.1.108, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[ 3] local 1.1.1.105 port 38888 connected with 1.1.1.108 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.0 sec 1.10 GBytes 943 Mbits/sec
ifconfig results:
enp0s9 Link encap:Ethernet HWaddr 00:21:28:6f:de:0f
inet addr:1.1.1.105 Bcast:0.0.0.0 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:5774764531 errors:0 dropped:0 overruns:0 frame:0
TX packets:633534193 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:7646159340904 (7.6 TB) TX bytes:11425340407722 (11.4 TB)
netstat results:
Kernel Interface table
Iface MTU Met RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-OVR Flg
...
enp0s9 1500 0 5774764531 0 0 0 633534193 0 0 0 BMRU
...
Fixes: f5d827aece ("forcedeth: implement ndo_get_stats64() API")
CC: Joe Jin <joe.jin@oracle.com>
CC: JUNXIAO_BI <junxiao.bi@oracle.com>
Reported-and-tested-by: Nan san <nan.1986san@gmail.com>
Signed-off-by: Zhu Yanjun <yanjun.zhu@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
NETDEV_TX_BUSY really should only be used by drivers that call
netif_tx_stop_queue() at the wrong moment. If dma_map_single() is
failed to map tx DMA buffer, it might trigger an infinite loop.
This patch use NETDEV_TX_OK instead of NETDEV_TX_BUSY, and change
printk to pr_err_ratelimited.
Fixes: d9fb9f3842 ("*sonic/natsemi/ns83829: Move the National Semi-conductor drivers")
Signed-off-by: Mao Wenan <maowenan@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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>
The last change to this Makefile caused relocation errors when loading
a kdump kernel. Restore -mcmodel=large (not -mcmodel=kernel),
-ffreestanding, and -fno-zero-initialized-bsss, without reverting to
the former practice of resetting KBUILD_CFLAGS.
Purgatory.ro is a standalone binary that is not linked against the
rest of the kernel. Its image is copied into an array that is linked
to the kernel, and from there kexec relocates it wherever it desires.
With the previous change to compiler flags, the error "kexec: Overflow
in relocation type 11 value 0x11fffd000" was encountered when trying
to load the crash kernel. This is from kexec code trying to relocate
the purgatory.ro object.
From the error message, relocation type 11 is R_X86_64_32S. The
x86_64 ABI says:
"The R_X86_64_32 and R_X86_64_32S relocations truncate the
computed value to 32-bits. The linker must verify that the
generated value for the R_X86_64_32 (R_X86_64_32S) relocation
zero-extends (sign-extends) to the original 64-bit value."
This type of relocation doesn't work when kexec chooses to place the
purgatory binary in memory that is not reachable with 32 bit
addresses.
The compiler flag -mcmodel=kernel allows those type of relocations to
be emitted, so revert to using -mcmodel=large as was done before.
Also restore the -ffreestanding and -fno-zero-initialized-bss flags
because they are appropriate for a stand alone piece of object code
which doesn't explicitly zero the bss, and one other report has said
undefined symbols are encountered without -ffreestanding.
These identical compiler flag changes need to happen for every object
that becomes part of the purgatory.ro object, so gather them together
first into PURGATORY_CFLAGS_REMOVE and PURGATORY_CFLAGS, and then
apply them to each of the objects that have C source. Do not apply
any of these flags to kexec-purgatory.o, which is not part of the
standalone object but part of the kernel proper.
Tested-by: Vaibhav Rustagi <vaibhavrustagi@google.com>
Tested-by: Andreas Smas <andreas@lonelycoder.com>
Signed-off-by: Steve Wahl <steve.wahl@hpe.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: None
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: clang-built-linux@googlegroups.com
Cc: dimitri.sivanich@hpe.com
Cc: mike.travis@hpe.com
Cc: russ.anderson@hpe.com
Fixes: b059f801a9 ("x86/purgatory: Use CFLAGS_REMOVE rather than reset KBUILD_CFLAGS")
Link: https://lkml.kernel.org/r/20190905202346.GA26595@swahl-linux
Signed-off-by: Ingo Molnar <mingo@kernel.org>
- 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 we disable the compiler's auto-initialization feature, if
-fplugin-arg-structleak_plugin-byref or -ftrivial-auto-var-init=pattern
are disabled, arch_hw_breakpoint may be used before initialization after:
9a4903dde2 ("perf/hw_breakpoint: Split attribute parse and commit")
On our ARM platform, the struct step_ctrl in arch_hw_breakpoint, which
used to be zero-initialized by kzalloc(), may be used in
arch_install_hw_breakpoint() without initialization.
Signed-off-by: Mark-PK Tsai <mark-pk.tsai@mediatek.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alix Wu <alix.wu@mediatek.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: YJ Chiang <yj.chiang@mediatek.com>
Link: https://lkml.kernel.org/r/20190906060115.9460-1-mark-pk.tsai@mediatek.com
[ Minor edits. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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>
The problem can be seen in the following two tests:
0: (bf) r3 = r10
1: (55) if r3 != 0x7b goto pc+0
2: (7a) *(u64 *)(r3 -8) = 0
3: (79) r4 = *(u64 *)(r10 -8)
..
0: (85) call bpf_get_prandom_u32#7
1: (bf) r3 = r10
2: (55) if r3 != 0x7b goto pc+0
3: (7b) *(u64 *)(r3 -8) = r0
4: (79) r4 = *(u64 *)(r10 -8)
When backtracking need to mark R4 it will mark slot fp-8.
But ST or STX into fp-8 could belong to the same block of instructions.
When backtracing is done the parent state may have fp-8 slot
as "unallocated stack". Which will cause verifier to warn
and incorrectly reject such programs.
Writes into stack via non-R10 register are rare. llvm always
generates canonical stack spill/fill.
For such pathological case fall back to conservative precision
tracking instead of rejecting.
Reported-by: syzbot+c8d66267fd2b5955287e@syzkaller.appspotmail.com
Fixes: b5dc0163d8 ("bpf: precise scalar_value tracking")
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
When creating a v4 route that uses a v6 nexthop from a nexthop group.
Allow the kernel to properly send the nexthop as v6 via the RTA_VIA
attribute.
Broken behavior:
$ ip nexthop add via fe80::9 dev eth0
$ ip nexthop show
id 1 via fe80::9 dev eth0 scope link
$ ip route add 4.5.6.7/32 nhid 1
$ ip route show
default via 10.0.2.2 dev eth0
4.5.6.7 nhid 1 via 254.128.0.0 dev eth0
10.0.2.0/24 dev eth0 proto kernel scope link src 10.0.2.15
$
Fixed behavior:
$ ip nexthop add via fe80::9 dev eth0
$ ip nexthop show
id 1 via fe80::9 dev eth0 scope link
$ ip route add 4.5.6.7/32 nhid 1
$ ip route show
default via 10.0.2.2 dev eth0
4.5.6.7 nhid 1 via inet6 fe80::9 dev eth0
10.0.2.0/24 dev eth0 proto kernel scope link src 10.0.2.15
$
v2, v3: Addresses code review comments from David Ahern
Fixes: dcb1ecb50e (“ipv4: Prepare for fib6_nh from a nexthop object”)
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David Ahern says:
====================
nexthops: Fix multipath notifications for IPv6 and selftests
A couple of bug fixes noticed while testing Donald's patch.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Cleanups of the tests in fib_nexthops.sh
1. Several tests noted unexpected route output, but the
discrepancy was not showing in the summary output and
overlooked in the verbose output. Add a WARNING message
to the summary output to make it clear a test is not showing
expected output.
2. Several check_* calls are missing extra data like scope and metric
causing mismatches when the nexthops or routes are correct - some of
them are a side effect of the evolving iproute2 command. Update the
data to the expected output.
3. Several check_routes are checking for the wrong nexthop data,
most likely a copy-paste-update error.
4. A couple of tests were re-using a nexthop id that already existed.
Fix those to use a new id.
Fixes: 6345266a99 ("selftests: Add test cases for nexthop objects")
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A change to the core nla helpers was missed during the push of
the nexthop changes. rt6_fill_node_nexthop should be calling
nla_nest_start_noflag not nla_nest_start. Currently, iproute2
does not print multipath data because of parsing issues with
the attribute.
Fixes: f88d8ea67f ("ipv6: Plumb support for nexthop object in a fib6_info")
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
sock_map and ULP only work together when ULP is loaded after the sock
map is loaded. In the sock_map case we added a check for this to fail
the load if ULP is already set. However, we missed the check on the
sock_hash side.
Add a ULP check to the sock_hash update path.
Fixes: 604326b41a ("bpf, sockmap: convert to generic sk_msg interface")
Reported-by: syzbot+7a6ee4d0078eac6bf782@syzkaller.appspotmail.com
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add forward declaration for struct gpio_desc in order to address
the following:
./include/linux/phy_fixed.h:48:17: error: 'struct gpio_desc' declared inside parameter list [-Werror]
./include/linux/phy_fixed.h:48:17: error: its scope is only this definition or declaration, which is probably not what you want [-Werror]
Fixes: 71bd106d25 ("net: fixed-phy: Add fixed_phy_register_with_gpiod() API")
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Johan Hedberg says:
====================
pull request: bluetooth 2019-09-05
Here are a few more Bluetooth fixes for 5.3. I hope they can still make
it. There's one USB ID addition for btusb, two reverts due to discovered
regressions, and two other important fixes.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This reverts commit c49a8682fc.
There are devices which require low connection intervals for usable operation
including keyboards and mice. Forcing a static connection interval for
these types of devices has an impact in latency and causes a regression.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.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>
Stefan Chulski