If scrub returns an error we are not copying back the scrub arguments
structure to user space. This prevents user space to know how much
progress scrub has done if an error happened - this includes -ECANCELED
which is returned when users ask for scrub to stop. A particular use
case, which is used in btrfs-progs, is to resume scrub after it is
canceled, in that case it relies on checking the progress from the scrub
arguments structure and then use that progress in a call to resume
scrub.
So fix this by always copying the scrub arguments structure to user
space, overwriting the value returned to user space with -EFAULT only if
copying the structure failed to let user space know that either that
copying did not happen, and therefore the structure is stale, or it
happened partially and the structure is probably not valid and corrupt
due to the partial copy.
Reported-by: Graham Cobb <g.btrfs@cobb.uk.net>
Link: https://lore.kernel.org/linux-btrfs/d0a97688-78be-08de-ca7d-bcb4c7fb397e@cobb.uk.net/
Fixes: 06fe39ab15 ("Btrfs: do not overwrite scrub error with fault error in scrub ioctl")
CC: stable@vger.kernel.org # 5.1+
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Tested-by: Graham Cobb <g.btrfs@cobb.uk.net>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This reverts the GPIOLIB_IRQCHIP in the ThunderX driver.
ThunderX is a piece of Arm-based server chip. I converted the driver to
hierarchical gpiochip without access to real silicon and failed miserably
since I didn't take MSI's into account.
Kevin Hao helpfully stepped in and fixed it properly, let's revert it for
v5.5 and put the proper conversion into v5.6.
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Merge tag 'gpio-v5.5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"This reverts the GPIOLIB_IRQCHIP in the ThunderX driver.
ThunderX is a piece of Arm-based server chip. I converted the driver
to hierarchical gpiochip without access to real silicon and failed
miserably since I didn't take MSI's into account.
Kevin Hao helpfully stepped in and fixed it properly, let's revert it
for v5.5 and put the proper conversion into v5.6"
* tag 'gpio-v5.5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
Revert "gpio: thunderx: Switch to GPIOLIB_IRQCHIP"
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Merge tag 'block-5.5-2020-01-16' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"Three fixes that should go into this release:
- The 32-bit segment size fix that I mentioned last week (Ming)
- Use uint for the block size (Mikulas)
- A null_blk zone write handling fix (Damien)"
* tag 'block-5.5-2020-01-16' of git://git.kernel.dk/linux-block:
block: fix an integer overflow in logical block size
null_blk: Fix zone write handling
block: fix get_max_segment_size() overflow on 32bit arch
We would not be transmitting using the correct SYSTEMPORT transmit queue
during ndo_select_queue() which looks up the internal TX ring map
because while establishing the mapping we would be off by 4, so for
instance, when we populate switch port mappings we would be doing:
switch port 0, queue 0 -> ring index #0
switch port 0, queue 1 -> ring index #1
...
switch port 0, queue 3 -> ring index #3
switch port 1, queue 0 -> ring index #8 (4 + 4 * 1)
...
instead of using ring index #4. This would cause our ndo_select_queue()
to use the fallback queue mechanism which would pick up an incorrect
ring for that switch port. Fix this by using the correct switch queue
number instead of SYSTEMPORT queue number.
Fixes: 25c4407046 ("net: systemport: Simplify queue mapping logic")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
With the implementation of the system reset controller we lost a setting
that is currently applied by the bootloader and which configures the IMP
port for 2Gb/sec, the default is 1Gb/sec. This is needed given the
number of ports and applications we expect to run so bring back that
setting.
Fixes: 01b0ac07589e ("net: dsa: bcm_sf2: Add support for optional reset controller line")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The sja1105_parse_ports_node function was tested only on device trees
where all ports were enabled. Fix this check so that the driver
continues to probe only with the ports where status is not "disabled",
as expected.
Fixes: 8aa9ebccae ("net: dsa: Introduce driver for NXP SJA1105 5-port L2 switch")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
According to the Datasheet this bit should be 0 (Normal operation) in
default. With the FORCE_LINK_GOOD bit set, it is not possible to get a
link. This patch sets FORCE_LINK_GOOD to the default value after
resetting the phy.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
The PCIe Root Port driver for CPU Complex PCIe Root Ports are not
loaded on SNR.
The device ID for SNR PCIe3 unit is used by both uncore driver and the
PCIe Root Port driver. If uncore driver is loaded, the PCIe Root Port
driver never be probed.
Remove the PCIe3 unit for SNR for now. The support for PCIe3 unit will
be added later separately.
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lkml.kernel.org/r/20200116200210.18937-2-kan.liang@linux.intel.com
An Oops during the boot is found on some SNR machines. It turns out
this is because the snr_uncore_imc_freerunning_events[] array was
missing an end-marker.
Fixes: ee49532b38 ("perf/x86/intel/uncore: Add IMC uncore support for Snow Ridge")
Reported-by: Like Xu <like.xu@linux.intel.com>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Like Xu <like.xu@linux.intel.com>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20200116200210.18937-1-kan.liang@linux.intel.com
The IMC uncore support is missed for E3-1585 v5 CPU.
Intel Xeon E3 V5 Family has Sky Lake CPU.
Add the PCI ID of IMC for Intel Xeon E3 V5 Family.
Reported-by: Rosales-fernandez, Carlos <carlos.rosales-fernandez@intel.com>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Rosales-fernandez, Carlos <carlos.rosales-fernandez@intel.com>
Link: https://lkml.kernel.org/r/1578687311-158748-1-git-send-email-kan.liang@linux.intel.com
Vince reports a worrying issue:
| so I was tracking down some odd behavior in the perf_fuzzer which turns
| out to be because perf_even_open() sometimes returns 0 (indicating a file
| descriptor of 0) even though as far as I can tell stdin is still open.
... and further the cause:
| error is triggered if aux_sample_size has non-zero value.
|
| seems to be this line in kernel/events/core.c:
|
| if (perf_need_aux_event(event) && !perf_get_aux_event(event, group_leader))
| goto err_locked;
|
| (note, err is never set)
This seems to be a thinko in commit:
ab43762ef0 ("perf: Allow normal events to output AUX data")
... and we should probably return -EINVAL here, as this should only
happen when the new event is mis-configured or does not have a
compatible aux_event group leader.
Fixes: ab43762ef0 ("perf: Allow normal events to output AUX data")
Reported-by: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Tested-by: Vince Weaver <vincent.weaver@maine.edu>
When there is not enough memory and napi_alloc_skb() return NULL,
the HNS driver will print error message, and than try again, if
the memory is not enough for a while, huge error message and the
retry operation will cause soft lockup.
When napi_alloc_skb() return NULL because of no memory, we can
get a warn_alloc() call trace, so this patch deletes the error
message. We already use polling mode to handle irq, but the
retry operation will render the polling weight inactive, this
patch just return budget when the rx is not completed to avoid
dead loop.
Fixes: 36eedfde1a ("net: hns: Optimize hns_nic_common_poll for better performance")
Fixes: b5996f11ea ("net: add Hisilicon Network Subsystem basic ethernet support")
Signed-off-by: Yonglong Liu <liuyonglong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
USB-serial drivers must not be unbound from their ports before the
corresponding USB driver is unbound from the parent interface so
suppress the bind and unbind attributes.
Unbinding a serial driver while it's port is open is a sure way to
trigger a crash as any driver state is released on unbind while port
hangup is handled on the parent USB interface level. Drivers for
multiport devices where ports share a resource such as an interrupt
endpoint also generally cannot handle individual ports going away.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
syzbot reported some bogus lockdep warnings, for example bad unlock
balance in sch_direct_xmit(). They are due to a race condition between
slow path and fast path, that is qdisc_xmit_lock_key gets re-registered
in netdev_update_lockdep_key() on slow path, while we could still
acquire the queue->_xmit_lock on fast path in this small window:
CPU A CPU B
__netif_tx_lock();
lockdep_unregister_key(qdisc_xmit_lock_key);
__netif_tx_unlock();
lockdep_register_key(qdisc_xmit_lock_key);
In fact, unlike the addr_list_lock which has to be reordered when
the master/slave device relationship changes, queue->_xmit_lock is
only acquired on fast path and only when NETIF_F_LLTX is not set,
so there is likely no nested locking for it.
Therefore, we can just get rid of re-registration of
qdisc_xmit_lock_key.
Reported-by: syzbot+4ec99438ed7450da6272@syzkaller.appspotmail.com
Fixes: ab92d68fc2 ("net: core: add generic lockdep keys")
Cc: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pablo Neira Ayuso says:
====================
Netfilter updates for net
The following patchset contains Netfilter fixes for net:
1) Fix use-after-free in ipset bitmap destroy path, from Cong Wang.
2) Missing init netns in entry cleanup path of arp_tables,
from Florian Westphal.
3) Fix WARN_ON in set destroy path due to missing cleanup on
transaction error.
4) Incorrect netlink sanity check in tunnel, from Florian Westphal.
5) Missing sanity check for erspan version netlink attribute, also
from Florian.
6) Remove WARN in nft_request_module() that can be triggered from
userspace, from Florian Westphal.
7) Memleak in NFTA_HOOK_DEVS netlink parser, from Dan Carpenter.
8) List poison from commit path for flowtables that are added and
deleted in the same batch, from Florian Westphal.
9) Fix NAT ICMP packet corruption, from Eyal Birger.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The commit 91d2a812df ("locking/rwsem: Make handoff writer
optimistically spin on owner") will allow a recently woken up waiting
writer to spin on the owner. Unfortunately, if the owner happens to be
RWSEM_OWNER_UNKNOWN, the code will incorrectly spin on it leading to a
kernel crash. This is fixed by passing the proper non-spinnable bits
to rwsem_spin_on_owner() so that RWSEM_OWNER_UNKNOWN will be treated
as a non-spinnable target.
Fixes: 91d2a812df ("locking/rwsem: Make handoff writer optimistically spin on owner")
Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Christoph Hellwig <hch@lst.de>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20200115154336.8679-1-longman@redhat.com
If the credentials or the mm doesn't match, don't allow the task to
submit anything on behalf of this ring. The task that owns the ring can
pass the file descriptor to another task, but we don't want to allow
that task to submit an SQE that then assumes the ring mm and creds if
it needs to go async.
Cc: stable@vger.kernel.org
Suggested-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
I've been sitting on these longer than I meant, so the patch count is
a bit higher than ideal for this part of the release. There's also some
reverts of double-applied patches that brings the diffstat up a bit.
With that said, the biggest changes are:
- Revert of duplicate i2c device addition on two Aspeed (BMC) Devicetrees.
- Move of two device nodes that got applied to the wrong part of the
tree on ASpeed G6.
- Regulator fix for Beaglebone X15 (adding 12/5V supplies)
- Use interrupts for keys on Amlogic SM1 to avoid missed polls
In addition to that, there is a collection of smaller DT fixes:
- Power supply assignment fixes for i.MX6
- Fix of interrupt line for magnetometer on i.MX8 Librem5 devkit
- Build fixlets (selects) for davinci/omap2+
- More interrupt number fixes for Stratix10, Amlogic SM1, etc.
- ... and more similar fixes across different platforms
And some non-DT stuff:
- optee fix to register multiple shared pages properly
- Clock calculation fixes for MMP3
- Clock fixes for OMAP as well
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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 Olof Johansson:
"I've been sitting on these longer than I meant, so the patch count is
a bit higher than ideal for this part of the release. There's also
some reverts of double-applied patches that brings the diffstat up a
bit.
With that said, the biggest changes are:
- Revert of duplicate i2c device addition on two Aspeed (BMC)
Devicetrees.
- Move of two device nodes that got applied to the wrong part of the
tree on ASpeed G6.
- Regulator fix for Beaglebone X15 (adding 12/5V supplies)
- Use interrupts for keys on Amlogic SM1 to avoid missed polls
In addition to that, there is a collection of smaller DT fixes:
- Power supply assignment fixes for i.MX6
- Fix of interrupt line for magnetometer on i.MX8 Librem5 devkit
- Build fixlets (selects) for davinci/omap2+
- More interrupt number fixes for Stratix10, Amlogic SM1, etc.
- ... and more similar fixes across different platforms
And some non-DT stuff:
- optee fix to register multiple shared pages properly
- Clock calculation fixes for MMP3
- Clock fixes for OMAP as well"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (42 commits)
MAINTAINERS: Add myself as the co-maintainer for Actions Semi platforms
ARM: dts: imx7: Fix Toradex Colibri iMX7S 256MB NAND flash support
ARM: dts: imx6sll-evk: Remove incorrect power supply assignment
ARM: dts: imx6sl-evk: Remove incorrect power supply assignment
ARM: dts: imx6sx-sdb: Remove incorrect power supply assignment
ARM: dts: imx6qdl-sabresd: Remove incorrect power supply assignment
ARM: dts: imx6q-icore-mipi: Use 1.5 version of i.Core MX6DL
ARM: omap2plus: select RESET_CONTROLLER
ARM: davinci: select CONFIG_RESET_CONTROLLER
ARM: dts: aspeed: rainier: Fix fan fault and presence
ARM: dts: aspeed: rainier: Remove duplicate i2c busses
ARM: dts: aspeed: tacoma: Remove duplicate flash nodes
ARM: dts: aspeed: tacoma: Remove duplicate i2c busses
ARM: dts: aspeed: tacoma: Fix fsi master node
ARM: dts: aspeed-g6: Fix FSI master location
ARM: dts: mmp3: Fix the TWSI ranges
clk: mmp2: Fix the order of timer mux parents
ARM: mmp: do not divide the clock rate
arm64: dts: rockchip: Fix IR on Beelink A1
optee: Fix multi page dynamic shm pool alloc
...
fix for PM on TI SoCs with sysc devices and fixes a bunch of clks that
are stuck always enabled on Qualcomm SDM845 SoCs. Allwinner SoCs get the
usual set of fixes too, mostly correcting drivers to have the right bits
that match the hardware. There's also a Samsung and Tegra fix in here
to mark a clk critical and avoid a double free. And finally there's a
fix for critical clks that silences a big warning splat about trying
to enable a clk that couldn't even be prepared.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"Second collection of clk fixes for the next release.
This one includes a fix for PM on TI SoCs with sysc devices and fixes
a bunch of clks that are stuck always enabled on Qualcomm SDM845 SoCs.
Allwinner SoCs get the usual set of fixes too, mostly correcting
drivers to have the right bits that match the hardware.
There's also a Samsung and Tegra fix in here to mark a clk critical
and avoid a double free.
And finally there's a fix for critical clks that silences a big
warning splat about trying to enable a clk that couldn't even be
prepared"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: ti: dra7-atl: Remove pm_runtime_irq_safe()
clk: qcom: gcc-sdm845: Add missing flag to votable GDSCs
clk: sunxi-ng: h6-r: Fix AR100/R_APB2 parent order
clk: sunxi-ng: h6-r: Simplify R_APB1 clock definition
clk: sunxi-ng: sun8i-r: Fix divider on APB0 clock
clk: Don't try to enable critical clocks if prepare failed
clk: tegra: Fix double-free in tegra_clk_init()
clk: samsung: exynos5420: Keep top G3D clocks enabled
clk: sunxi-ng: r40: Allow setting parent rate for external clock outputs
clk: sunxi-ng: v3s: Fix incorrect number of hw_clks.
Fix a coding mistake in the teo cpuidle governor causing data
to be written beyond the last array element (Ikjoon Jang).
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Merge tag 'pm-5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fix from Rafael Wysocki:
"Fix a coding mistake in the teo cpuidle governor causing data to be
written beyond the last array element (Ikjoon Jang)"
* tag 'pm-5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpuidle: teo: Fix intervals[] array indexing bug
Since I've been doing the maintainership work for couple of cycles, we've
decided to add myself as the co-maintainer along with Andreas.
Link: https://lore.kernel.org/r/20200114084348.25659-2-manivannan.sadhasivam@linaro.org
Cc: "Andreas Färber" <afaerber@suse.de>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Acked-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
If the SME and SEV features are present via CPUID, but memory encryption
support is not enabled (MSR 0xC001_0010[23]), the feature flags are cleared
using clear_cpu_cap(). However, if get_cpu_cap() is later called, these
feature flags will be reset back to present, which is not desired.
Change from using clear_cpu_cap() to setup_clear_cpu_cap() so that the
clearing of the flags is maintained.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <stable@vger.kernel.org> # 4.16.x-
Link: https://lkml.kernel.org/r/226de90a703c3c0be5a49565047905ac4e94e8f3.1579125915.git.thomas.lendacky@amd.com
One fix in the wilco_ec keyboard backlight driver
to allow the EC driver to continue loading in the absence
of a backlight module.
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Merge tag 'tag-chrome-platform-fixes-for-v5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux
Pull chrome platform fix from Benson Leung:
"One fix in the wilco_ec keyboard backlight driver to allow the EC
driver to continue loading in the absence of a backlight module"
* tag 'tag-chrome-platform-fixes-for-v5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
platform/chrome: wilco_ec: Fix keyboard backlight probing
Commit 8303b7e8f0 ("netfilter: nat: fix spurious connection timeouts")
made nf_nat_icmp_reply_translation() use icmp_manip_pkt() as the l4
manipulation function for the outer packet on ICMP errors.
However, icmp_manip_pkt() assumes the packet has an 'id' field which
is not correct for all types of ICMP messages.
This is not correct for ICMP error packets, and leads to bogus bytes
being written the ICMP header, which can be wrongfully regarded as
'length' bytes by RFC 4884 compliant receivers.
Fix by assigning the 'id' field only for ICMP messages that have this
semantic.
Reported-by: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Fixes: 8303b7e8f0 ("netfilter: nat: fix spurious connection timeouts")
Signed-off-by: Eyal Birger <eyal.birger@gmail.com>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
The only callers of the function lapbeth_get_x25_dev()
are lapbeth_rcv() and lapbeth_device_event().
lapbeth_rcv() uses rcu_read_lock() whereas lapbeth_device_event()
is called with RTNL held (As mentioned in the comments).
Therefore, pass lockdep_rtnl_is_held() as cond argument in
list_for_each_entry_rcu();
Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik04@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
syzbot reported following crash:
list_del corruption, ffff88808c9bb000->prev is LIST_POISON2 (dead000000000122)
[..]
Call Trace:
__list_del_entry include/linux/list.h:131 [inline]
list_del_rcu include/linux/rculist.h:148 [inline]
nf_tables_commit+0x1068/0x3b30 net/netfilter/nf_tables_api.c:7183
[..]
The commit transaction list has:
NFT_MSG_NEWTABLE
NFT_MSG_NEWFLOWTABLE
NFT_MSG_DELFLOWTABLE
NFT_MSG_DELTABLE
A missing generation check during DELTABLE processing causes it to queue
the DELFLOWTABLE operation a second time, so we corrupt the list here:
case NFT_MSG_DELFLOWTABLE:
list_del_rcu(&nft_trans_flowtable(trans)->list);
nf_tables_flowtable_notify(&trans->ctx,
because we have two different DELFLOWTABLE transactions for the same
flowtable. We then call list_del_rcu() twice for the same flowtable->list.
The object handling seems to suffer from the same bug so add a generation
check too and only queue delete transactions for flowtables/objects that
are still active in the next generation.
Reported-by: syzbot+37a6804945a3a13b1572@syzkaller.appspotmail.com
Fixes: 3b49e2e94e ("netfilter: nf_tables: add flow table netlink frontend")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Syzbot detected a leak in nf_tables_parse_netdev_hooks(). If the hook
already exists, then the error handling doesn't free the newest "hook".
Reported-by: syzbot+f9d4095107fc8749c69c@syzkaller.appspotmail.com
Fixes: b75a3e8371 ("netfilter: nf_tables: allow netdevice to be used only once per flowtable")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This WARN can trigger because some of the names fed to the module
autoload function can be of arbitrary length.
Remove the WARN and add limits for all NLA_STRING attributes.
Reported-by: syzbot+0e63ae76d117ae1c3a01@syzkaller.appspotmail.com
Fixes: 452238e8d5 ("netfilter: nf_tables: add and use helper for module autoload")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
else we get null deref when one of the attributes is missing, both
must be non-null.
Reported-by: syzbot+76d0b80493ac881ff77b@syzkaller.appspotmail.com
Fixes: aaecfdb5c5 ("netfilter: nf_tables: match on tunnel metadata")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This is mostly driver specific fixes, plus an error handling fix
in the core. There is a rather large diffstat for the stm32 SAI
driver, this is a very large but mostly mechanical update which
wraps every register access in the driver to allow a fix to the
locking which avoids circular locks, the active change is much
smaller and more reasonably sized.
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Merge tag 'asoc-fix-v5.5-rc6' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v5.5
This is mostly driver specific fixes, plus an error handling fix
in the core. There is a rather large diffstat for the stm32 SAI
driver, this is a very large but mostly mechanical update which
wraps every register access in the driver to allow a fix to the
locking which avoids circular locks, the active change is much
smaller and more reasonably sized.
DSA subsystem takes care of netdev statistics since commit 4ed70ce9f0
("net: dsa: Refactor transmit path to eliminate duplication"), so
any accounting inside tagger callbacks is redundant and can lead to
messing up the stats.
This bug is present in Qualcomm tagger since day 0.
Fixes: cafdc45c94 ("net-next: dsa: add Qualcomm tag RX/TX handler")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Alexander Lobakin <alobakin@dlink.ru>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The correct name is GSWIP (Gigabit Switch IP). Typo was introduced in
875138f81d ("dsa: Move tagger name into its ops structure") while
moving tagger names to their structures.
Fixes: 875138f81d ("dsa: Move tagger name into its ops structure")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Alexander Lobakin <alobakin@dlink.ru>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
When building with PROVE_LOCKING=y, lockdep shows the following
dump message.
INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
...
Calling device_set_wakeup_enable() directly occurs this issue,
and it isn't necessary for initialization, so this patch creates
internal function __ave_ethtool_set_wol() and replaces with this
in ave_init() and ave_resume().
Fixes: 7200f2e3c9 ("net: ethernet: ave: Set initial wol state to disabled")
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The hardware can not handle short frames below or equal to 32
bytes according to the hardware user manual, and it will trigger
a RAS error when the frame's length is below 33 bytes.
This patch pads the SKB when skb->len is below 33 bytes before
sending it to hardware.
Fixes: 76ad4f0ee7 ("net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
I missed the fact that macvlan_broadcast() can be used both
in RX and TX.
skb_eth_hdr() makes only sense in TX paths, so we can not
use it blindly in macvlan_broadcast()
Fixes: 96cc4b6958 ("macvlan: do not assume mac_header is set in macvlan_broadcast()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Jurgen Van Ham <juvanham@gmail.com>
Tested-by: Matteo Croce <mcroce@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Buffered read in fuse normally goes via:
-> generic_file_buffered_read()
-> fuse_readpages()
-> fuse_send_readpages()
->fuse_simple_request() [called since v5.4]
In the case of a read request, fuse_simple_request() will return a
non-negative bytecount on success or a negative error value. A positive
bytecount was taken to be an error and the PG_error flag set on the page.
This resulted in generic_file_buffered_read() falling back to ->readpage(),
which would repeat the read request and succeed. Because of the repeated
read succeeding the bug was not detected with regression tests or other use
cases.
The FTP module in GVFS however fails the second read due to the
non-seekable nature of FTP downloads.
Fix by checking and ignoring positive return value from
fuse_simple_request().
Reported-by: Ondrej Holy <oholy@redhat.com>
Link: https://gitlab.gnome.org/GNOME/gvfs/issues/441
Fixes: 134831e36b ("fuse: convert readpages to simple api")
Cc: <stable@vger.kernel.org> # v5.4
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Daniel Borkmann says:
====================
pull-request: bpf 2020-01-15
The following pull-request contains BPF updates for your *net* tree.
We've added 12 non-merge commits during the last 9 day(s) which contain
a total of 13 files changed, 95 insertions(+), 43 deletions(-).
The main changes are:
1) Fix refcount leak for TCP time wait and request sockets for socket lookup
related BPF helpers, from Lorenz Bauer.
2) Fix wrong verification of ARSH instruction under ALU32, from Daniel Borkmann.
3) Batch of several sockmap and related TLS fixes found while operating
more complex BPF programs with Cilium and OpenSSL, from John Fastabend.
4) Fix sockmap to read psock's ingress_msg queue before regular sk_receive_queue()
to avoid purging data upon teardown, from Lingpeng Chen.
5) Fix printing incorrect pointer in bpftool's btf_dump_ptr() in order to properly
dump a BPF map's value with BTF, from Martin KaFai Lau.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
A previous commit moved the locking for the async sqthread, but didn't
take into account that the io-wq workers still need it. We can't use
req->in_async for this anymore as both the sqthread and io-wq workers
set it, gate the need for locking on io_wq_current_is_worker() instead.
Fixes: 8a4955ff1c ("io_uring: sqthread should grab ctx->uring_lock for submissions")
Reported-by: Bijan Mottahedeh <bijan.mottahedeh@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Logical block size has type unsigned short. That means that it can be at
most 32768. However, there are architectures that can run with 64k pages
(for example arm64) and on these architectures, it may be possible to
create block devices with 64k block size.
For exmaple (run this on an architecture with 64k pages):
Mount will fail with this error because it tries to read the superblock using 2-sector
access:
device-mapper: writecache: I/O is not aligned, sector 2, size 1024, block size 65536
EXT4-fs (dm-0): unable to read superblock
This patch changes the logical block size from unsigned short to unsigned
int to avoid the overflow.
Cc: stable@vger.kernel.org
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
req->result is cleared when io_issue_sqe() calls io_read/write_pre()
routines. Those routines however are not called when the sqe
argument is NULL, which is the case when io_issue_sqe() is called from
io_wq_submit_work(). io_issue_sqe() may then examine a stale result if
a polled request had previously failed with -EAGAIN:
if (ctx->flags & IORING_SETUP_IOPOLL) {
if (req->result == -EAGAIN)
return -EAGAIN;
io_iopoll_req_issued(req);
}
and in turn cause a subsequently completed request to be re-issued in
io_wq_submit_work().
Signed-off-by: Bijan Mottahedeh <bijan.mottahedeh@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Tom Hatskevich reported that we look up "iocp" then, in the called
functions we do a second copy_from_user() and look it up again.
The problem that could cause is:
drivers/message/fusion/mptctl.c
674 /* All of these commands require an interrupt or
675 * are unknown/illegal.
676 */
677 if ((ret = mptctl_syscall_down(iocp, nonblock)) != 0)
^^^^
We take this lock.
678 return ret;
679
680 if (cmd == MPTFWDOWNLOAD)
681 ret = mptctl_fw_download(arg);
^^^
Then the user memory changes and we look up "iocp" again but a different
one so now we are holding the incorrect lock and have a race condition.
682 else if (cmd == MPTCOMMAND)
683 ret = mptctl_mpt_command(arg);
The security impact of this bug is not as bad as it could have been
because these operations are all privileged and root already has
enormous destructive power. But it's still worth fixing.
This patch passes the "iocp" pointer to the functions to avoid the
second lookup. That deletes 100 lines of code from the driver so
it's a nice clean up as well.
Link: https://lore.kernel.org/r/20200114123414.GA7957@kadam
Reported-by: Tom Hatskevich <tom2001tom.23@gmail.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Commit 0ed8810276 ("scsi: storvsc: setup 1:1 mapping between hardware
queue and CPU queue") introduced a regression for disks attached to
IDE. For these disks the host VSP only offers one VMBUS channel. Setting
multiple queues can overload the VMBUS channel and result in performance
drop for high queue depth workload on system with large number of CPUs.
Fix it by leaving the number of hardware queues to 1 (default value) for
IDE disks.
Fixes: 0ed8810276 ("scsi: storvsc: setup 1:1 mapping between hardware queue and CPU queue")
Link: https://lore.kernel.org/r/1578960516-108228-1-git-send-email-longli@linuxonhyperv.com
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Long Li <longli@microsoft.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
gcc -O3 warns that some local variables are not properly initialized:
drivers/scsi/fnic/vnic_dev.c: In function 'fnic_dev_hang_notify':
drivers/scsi/fnic/vnic_dev.c:511:16: error: 'a0' is used uninitialized in this function [-Werror=uninitialized]
vdev->args[0] = *a0;
~~~~~~~~~~~~~~^~~~~
drivers/scsi/fnic/vnic_dev.c:691:6: note: 'a0' was declared here
u64 a0, a1;
^~
drivers/scsi/fnic/vnic_dev.c:512:16: error: 'a1' is used uninitialized in this function [-Werror=uninitialized]
vdev->args[1] = *a1;
~~~~~~~~~~~~~~^~~~~
drivers/scsi/fnic/vnic_dev.c:691:10: note: 'a1' was declared here
u64 a0, a1;
^~
drivers/scsi/fnic/vnic_dev.c: In function 'fnic_dev_mac_addr':
drivers/scsi/fnic/vnic_dev.c:512:16: error: 'a1' is used uninitialized in this function [-Werror=uninitialized]
vdev->args[1] = *a1;
~~~~~~~~~~~~~~^~~~~
drivers/scsi/fnic/vnic_dev.c:698:10: note: 'a1' was declared here
u64 a0, a1;
^~
Apparently the code relies on the local variables occupying adjacent memory
locations in the same order, but this is of course not guaranteed.
Use an array of two u64 variables where needed to make it work correctly.
I suspect there is also an endianness bug here, but have not digged in deep
enough to be sure.
Fixes: 5df6d737dd ("[SCSI] fnic: Add new Cisco PCI-Express FCoE HBA")
Fixes: mmtom ("init/Kconfig: enable -O3 for all arches")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20200107201602.4096790-1-arnd@arndb.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The code in secondary_park is currently placed in the .init section. The
kernel reclaims and clears this code when it finishes booting. That
causes the cores parked in it to go to somewhere unpredictable, so we
move this function out of init to make sure the cores stay looping there.
The instruction bgeu a0, t0, .Lsecondary_park may have "a relocation
truncated to fit" issue during linking time. It is because that sections
are too far to jump. Let's use tail to jump to the .Lsecondary_park.
Signed-off-by: Greentime Hu <greentime.hu@sifive.com>
Reviewed-by: Anup Patel <anup.patel@sifive.com>
Cc: Andreas Schwab <schwab@suse.de>
Cc: stable@vger.kernel.org
Fixes: 76d2a0493a ("RISC-V: Init and Halt Code")
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
read_current_link_settings_on_detect() on eDP 1.4+ may use the
edp_supported_link_rates table which is set up by
detect_edp_sink_caps(), so that function needs to be called first.
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Cc: Martin Leung <martin.leung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
