[ Upstream commit c2712b858187f5bcd7b042fe4daa3ba3a12635c0 ]
Andy had some concerns about using regs_get_kernel_stack_nth() in a new
function regs_get_kernel_argument() as if there's any error in the stack
code, it could cause a bad memory access. To be on the safe side, call
probe_kernel_read() on the stack address to be extra careful in accessing
the memory. A helper function, regs_get_kernel_stack_nth_addr(), was added
to just return the stack address (or NULL if not on the stack), that will be
used to find the address (and could be used by other functions) and read the
address with kernel_probe_read().
Requested-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20181017165951.09119177@gandalf.local.home
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 33c4368ee2589c165aebd8d388cbd91e9adb9688 ]
This fixes the "'hash' may be used uninitialized in this function"
net/unix/af_unix.c:1041:20: warning: 'hash' may be used uninitialized in this function [-Wmaybe-uninitialized]
addr->hash = hash ^ sk->sk_type;
Signed-off-by: Kyeongdon Kim <kyeongdon.kim@lge.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 6c404a68bf83b4135a8a9aa1c388ebdf98e8ba7f ]
We need to transfer device ownership to the CPU before we can manipulate
the mapped data.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 3a5bd7021184dec2946f2a4d7a8943f8a5713e52 ]
We can't just transfer ownership to the CPU and then unmap, as this will
break with swiotlb.
Instead unmap the command and sense buffer a little earlier in the I/O
completion handler and get rid of the pci_dma_sync_sg_for_cpu call
entirely.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 4917fb90eec7c26dac1497ada3bd4a325f670fcc ]
A typo that makes it impossible to get the correct clocks for
MMP2_CLK_SDH2 and MMP2_CLK_SDH3.
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Fixes: 1ec770d92a ("clk: mmp: add mmp2 DT support for clock driver")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 20054597f169090109fc3f0dfa1a48583f4178a4 ]
Clang warns when one enumerated type is implicitly converted to another.
drivers/scsi/iscsi_tcp.c:803:15: warning: implicit conversion from
enumeration type 'enum iscsi_host_param' to different enumeration type
'enum iscsi_param' [-Wenum-conversion]
&addr, param, buf);
^~~~~
1 warning generated.
iscsi_conn_get_addr_param handles ISCSI_HOST_PARAM_IPADDRESS just fine
so add an explicit cast to iscsi_param to make it clear to Clang that
this is expected behavior.
Link: https://github.com/ClangBuiltLinux/linux/issues/153
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 362b5da3dfceada6e74ecdd7af3991bbe42c0c0f ]
Clang warns when an enumerated type is implicitly converted to another.
drivers/scsi/isci/request.c:3476:13: warning: implicit conversion from
enumeration type 'enum sci_task_status' to different enumeration type
'enum sci_status' [-Wenum-conversion]
status = sci_controller_start_task(ihost,
~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/isci/host.c:2744:10: warning: implicit conversion from
enumeration type 'enum sci_status' to different enumeration type 'enum
sci_task_status' [-Wenum-conversion]
return SCI_SUCCESS;
~~~~~~ ^~~~~~~~~~~
drivers/scsi/isci/host.c:2753:9: warning: implicit conversion from
enumeration type 'enum sci_status' to different enumeration type 'enum
sci_task_status' [-Wenum-conversion]
return status;
~~~~~~ ^~~~~~
Avoid all of these implicit conversion by just making
sci_controller_start_task use sci_status. This silences
Clang and has no functional change since sci_task_status
has all of its values mapped to something in sci_status.
Link: https://github.com/ClangBuiltLinux/linux/issues/153
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit e9e9a103528c7e199ead6e5374c9c52cf16b5802 ]
Clang warns when one enumerated type is implicitly converted to another.
drivers/scsi/isci/request.c:1629:13: warning: implicit conversion from
enumeration type 'enum sci_io_status' to different enumeration type
'enum sci_status' [-Wenum-conversion]
status = SCI_IO_FAILURE_RESPONSE_VALID;
~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/isci/request.c:1631:12: warning: implicit conversion from
enumeration type 'enum sci_io_status' to different enumeration type
'enum sci_status' [-Wenum-conversion]
status = SCI_IO_FAILURE_RESPONSE_VALID;
~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
status is of type sci_status but SCI_IO_FAILURE_RESPONSE_VALID is of
type sci_io_status. Use SCI_FAILURE_IO_RESPONSE_VALID, which is from
sci_status and has SCI_IO_FAILURE_RESPONSE_VALID's exact value since
that is what SCI_IO_FAILURE_RESPONSE_VALID is mapped to in the isci.h
file.
Link: https://github.com/ClangBuiltLinux/linux/issues/153
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 5d25ff7a544889bc4b749fda31778d6a18dddbcb ]
Add missing break statement in order to prevent the code from falling
through to case TEST_UNIT_READY.
Addresses-Coverity-ID: 1357338 ("Missing break in switch")
Suggested-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 53d0f8dbde89cf6c862c7a62e00c6123e02cba41 ]
The error handling in fd_probe_drives() doesn't clean up at all. Fix it
up in preparation for converting to blk-mq. While we're here, get rid of
the commented out amiga_floppy_remove().
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 6b995f4eec34745f6cb20d66d5277611f0b3c3fa ]
In _scif_prog_signal(), the boolean variable 'x100' is used to indicate
whether the MIC Coprocessor is X100. If 'x100' is true, the status
descriptor will be used to write the value to the destination. Otherwise, a
DMA pool will be allocated for this purpose. Specifically, if the DMA pool
is allocated successfully, two memory addresses will be returned. One is
for the CPU and the other is for the device to access the DMA pool. The
former is stored to the variable 'status' and the latter is stored to the
variable 'src'. After the allocation, the address in 'src' is saved to
'status->src_dma_addr', which is actually in the DMA pool, and 'src' is
then modified.
Later on, if an error occurs, the execution flow will transfer to the label
'dma_fail', which will check 'x100' and free up the allocated DMA pool if
'x100' is false. The point here is that 'status->src_dma_addr' is used for
freeing up the DMA pool. As mentioned before, 'status->src_dma_addr' is in
the DMA pool. And thus, the device is able to modify this data. This can
potentially cause failures when freeing up the DMA pool because of the
modified device address.
This patch avoids the above issue by using the variable 'src' (with
necessary calculation) to free up the DMA pool.
Signed-off-by: Wenwen Wang <wang6495@umn.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 655603de68469adaff16842ac17a5aec9c9ce89b ]
The sysfs handler should return the number of bytes consumed, which in the
case of a successful write is the entire buffer. Also fix a bug where
param.data_len was being set to (count - (2 * sizeof(u32))) instead of just
(count - sizeof(u32)). The latter is correct because we skip over the
leading u32 which is our param.type, but we were also incorrectly
subtracting sizeof(u32) on the line where we were actually setting
param.data_len:
param.data_len = count - sizeof(u32);
This meant that for our example event.kernel_software_watchdog with total
length 10 bytes, param.data_len was just 2 prior to this change.
To test, successfully append an event to the log with gsmi sysfs.
This sample event is for a "Kernel Software Watchdog"
> xxd -g 1 event.kernel_software_watchdog
0000000: 01 00 00 00 ad de 06 00 00 00
> cat event.kernel_software_watchdog > /sys/firmware/gsmi/append_to_eventlog
> mosys eventlog list | tail -1
14 | 2012-06-25 10:14:14 | Kernl Event | Software Watchdog
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
Signed-off-by: Furquan Shaikh <furquan@google.com>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Justin TerAvest <teravest@chromium.org>
[zwisler: updated changelog for 2nd bug fix and upstream]
Signed-off-by: Ross Zwisler <zwisler@google.com>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 315bed43fea532650933e7bba316a7601d439edf ]
In btrfs_search_old_slot get_old_root is always used with the assumption
it cannot fail. However, this is not true in rare circumstance it can
fail and return null. This will lead to null point dereference when the
header is read. Fix this by checking the return value and properly
handling NULL by setting ret to -EIO and returning gracefully.
Coverity-id: 1087503
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit f38a9774ddde9d79b3487dd888edd8b8623552af ]
when msdc_cmd_is_ready return fail, the req_timeout work has not been
inited and cancel_delayed_work() will return false, then, the request
return directly and never call mmc_request_done().
so need call mod_delayed_work() before msdc_cmd_is_ready()
Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit f34c6e6257aa477cdfe7e9bbbecd3c5648ecda69 ]
Since commit 9ec36cafe4 ("of/irq: do irq resolution in platform_get_irq")
platform_get_irq() can return -EPROBE_DEFER. However, the driver overrides
an error returned by that function with -ENOENT which breaks the deferred
probing. Propagate upstream an error code returned by platform_get_irq()
and remove the bogus "platform" from the error message, while at it...
Fixes: 9ec36cafe4 ("of/irq: do irq resolution in platform_get_irq")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 2258ee58baa554609a3cc3996276e4276f537b6d ]
Beacons are not updated to reflect TIM changes. This is not compliant with
power-saving client stations as the beacons do not have valid TIM and can
cause the network to stall at random occasions and to have highly variable
latencies.
Fix it by updating beacon templates on mac80211 set_tim callback.
Addresses an issue described in:
https://marc.info/?i=20180911163534.21312d08%20()%20manjaro
Signed-off-by: Ali MJ Al-Nasrawy <alimjalnasrawy@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 473af09b56dc4be68e4af33220ceca6be67aa60d ]
eeh_add_to_parent_pe() sometimes removes the EEH_PE_KEEP flag, but it
incorrectly removes it from pe->type, instead of pe->state.
However, rather than clearing it from the correct field, remove it.
Inspection of the code shows that it can't ever have had any effect
(even if it had been cleared from the correct field), because the
field is never tested after it is cleared by the statement in
question.
The clear statement was added by commit 807a827d4e ("powerpc/eeh:
Keep PE during hotplug"), but it didn't explain why it was necessary.
Signed-off-by: Sam Bobroff <sbobroff@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 014704e6f54189a203cc14c7c0bb411b940241bc ]
The "count < sizeof(struct os_area_db)" comparison is type promoted to
size_t so negative values of "count" are treated as very high values
and we accidentally return success instead of a negative error code.
This doesn't really change runtime much but it fixes a static checker
warning.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit ec23df2b0cf3e1620f5db77972b7fb735f267eff ]
Reservations in gfs can span multiple gfs2_bitmaps (but they won't span
multiple resource groups). When removing a reservation, we want to
clear the GBF_FULL flags of all involved gfs2_bitmaps, not just that of
the first bitmap.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Reviewed-by: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit d2130e82e9454304e9b91ba9da551b5989af8c27 ]
The way we calculate logbuf free space percentage overflows signed
integer:
int free;
free = __LOG_BUF_LEN - log_next_idx;
pr_info("early log buf free: %u(%u%%)\n",
free, (free * 100) / __LOG_BUF_LEN);
We support LOG_BUF_LEN of up to 1<<25 bytes. Since setup_log_buf() is
called during early init, logbuf is mostly empty, so
__LOG_BUF_LEN - log_next_idx
is close to 1<<25. Thus when we multiply it by 100, we overflow signed
integer value range: 100 is 2^6 + 2^5 + 2^2.
Example, booting with LOG_BUF_LEN 1<<25 and log_buf_len=2G
boot param:
[ 0.075317] log_buf_len: -2147483648 bytes
[ 0.075319] early log buf free: 33549896(-28%)
Make "free" unsigned integer and use appropriate printk() specifier.
Link: http://lkml.kernel.org/r/20181010113308.9337-1-sergey.senozhatsky@gmail.com
To: Steven Rostedt <rostedt@goodmis.org>
Cc: linux-kernel@vger.kernel.org
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 51e68fb0929c29e47e9074ca3e99ffd6021a1c5a ]
In some error paths, reference count of firewire unit is not decreased.
This commit fixes the bug.
Fixes: 5b14ec25a79b('ALSA: firewire: release reference count of firewire unit in .remove callback of bus driver')
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 65a576e27309120e0621f54d5c81eb9128bd56be ]
NL80211_TX_POWER_LIMITED was treated as NL80211_TX_POWER_AUTOMATIC,
which is the opposite of what should happen and can cause nasty
regulatory problems.
if/else converted to a switch without default to make gcc warn
on unhandled enum values.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit ea893695ec1131a5fed0523ff8094bc6e8723bbe ]
A recent bugfix added a call to i8042_install_filter but did
not add the dependency, leading to possible link errors:
drivers/platform/built-in.o: In function `asus_nb_wmi_quirks':
asus-nb-wmi.c:(.text+0x23af): undefined reference to `i8042_install_filter'
This adds a dependency on SERIO_I8042||SERIO_I8042=n to indicate
that we can build the driver when the i8042 driver is disabled,
but it cannot be built-in when that is a loadable module.
Fixes: b5643539b825 ("platform/x86: asus-wmi: Filter buggy scan codes on ASUS Q500A")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 401fee8195d401b2b94dee57383f627050724d5b ]
Commit 78f3ac76d9e5 ("platform/x86: asus-wmi: Tell the EC the OS will
handle the display off hotkey") causes the backlight to be permanently off
on various EeePC laptop models using the eeepc-wmi driver (Asus EeePC
1015BX, Asus EeePC 1025C).
The asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 2, NULL) call added
by that commit is made conditional in this commit and only enabled in
the quirk_entry structs in the asus-nb-wmi driver fixing the broken
display / backlight on various EeePC laptop models.
Cc: João Paulo Rechi Vita <jprvita@endlessm.com>
Fixes: 78f3ac76d9e5 ("platform/x86: asus-wmi: Tell the EC the OS will handle the display off hotkey")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit db2582afa7444a0ce6bb1ebf1431715969a10b06 ]
This patch adds support for ALS on the Zenbook UX430UQ to the asus_nb_wmi
driver. It also renames "quirk_asus_ux330uak" to "quirk_asus_forceals"
because it is now used for more than one model of computer, and should
thus have a more general name.
Signed-off-by: Kiernan Hager <kah.listaddress@gmail.com>
[andy: massaged commit message, fixed indentation and commas in the code]
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit e9b615186805e2c18a0ac76aca62c1543ecfdbb8 ]
some laptops, for example ASUS UX330UAK, have brocken als_get function
but working als_set funktion. In this case, ALS will stay turned off.
Method (WMNB, 3, Serialized)
{
...
If (Local0 == 0x53545344)
{
...
If (IIA0 == 0x00050001)
{
If (!ALSP)
{
Return (0x02)
}
Local0 = (GALS & 0x10) <<<---- bug,
should be: (GALS () & 0x10)
If (Local0)
{
Return (0x00050001)
}
Else
{
Return (0x00050000)
}
}
.....
If (Local0 == 0x53564544)
{
...
If (IIA0 == 0x00050001)
{
Return (ALSC (IIA1))
}
......
Method (GALS, 0, NotSerialized)
{
Local0 = Zero
Local0 |= 0x20
If (ALAE)
{
Local0 |= 0x10
}
Local1 = 0x0A
Local1 <<= 0x08
Local0 |= Local1
Return (Local0)
}
Since it works without problems on Windows I assume ASUS WMI driver for Win
never trying to get ALS state, and instead it is setting it by default to ON.
This patch will do the same. Turn ALS on by default.
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit aca234f6378864d85514be558746c0ea6eabfa8e ]
Asus Zenbook ux31a is providing ACPI0008 interface for ALS
(Ambient Light Sensor), which is accessible for OS => Win 7.
This sensor can be used with iio/acpi-als driver.
Since it is disabled by default, we should use asus-wmi
interface to enable it.
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit b5643539b82559b858b8efe3fc8343f66cf9a0b5 ]
Some revisions of the ASUS Q500A series have a keyboard related
issue which is reproducible only after Windows with installed ASUS
tools is started.
In this case the Linux side will have a blocked keyboard or
report incorrect or incomplete hotkey events.
To make Linux work properly again, a complete power down
(unplug power supply and remove battery) is needed.
Linux/atkbd after a clean start will get the following code on VOLUME_UP
key: {0xe0, 0x30, 0xe0, 0xb0}. After Windows, the same key will generate
this codes: {0xe1, 0x23, 0xe0, 0x30, 0xe0, 0xb0}. As result atkdb will
be confused by buggy codes.
This patch is filtering this buggy code out.
https://bugzilla.kernel.org/show_bug.cgi?id=119391
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Cc: Alex Henrie <alexhenrie24@gmail.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Corentin Chary <corentin.chary@gmail.com>
Cc: acpi4asus-user@lists.sourceforge.net
Cc: platform-driver-x86@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
[dvhart: Add return after pr_warn to avoid false confirmation of filter]
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 6b7ff2af5286a8c6bec7ff5f4df62e3506c1674e ]
The Asus Z550MA has an airplane-mode indicator LED and the WMI WLAN user
bit set, so asus-wmi uses ASUS_WMI_DEVID_WLAN_LED (0x00010002) to store
the wlan state, which has a side-effect of driving the airplane mode
indicator LED in an inverted fashion. quirk_no_rfkill prevents asus-wmi
from registering RFKill switches at all for this laptop and allows
asus-wireless to drive the LED through the ASHS ACPI device.
Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com>
Reported-by: Ming Shuo Chiu <chiu@endlessm.com>
Reviewed-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 02db9ff7af18f7ace60f430cbbaa1d846b350916 ]
The Asus U303LB has an airplane-mode indicator LED and the WMI WLAN user
bit set, so asus-wmi uses ASUS_WMI_DEVID_WLAN_LED (0x00010002) to store
the wlan state, which has a side-effect of driving the airplane mode
indicator LED in an inverted fashion. quirk_no_rfkill prevents asus-wmi
from registering RFKill switches at all for this laptop and allows
asus-wireless to drive the LED through the ASHS ACPI device.
Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com>
Reported-by: Mousou Yuu <guogaishiwo@gmail.com>
Reviewed-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 2d735244b798f0c8bf93ace1facfafdc1f7a4e6e ]
The Asus N552VW has an airplane-mode indicator LED and the WMI WLAN user
bit set, so asus-wmi uses ASUS_WMI_DEVID_WLAN_LED (0x00010002) to store
the wlan state, which has a side-effect of driving the airplane mode
indicator LED in an inverted fashion. quirk_no_rfkill prevents asus-wmi
from registering RFKill switches at all for this laptop and allows
asus-wireless to drive the LED through the ASHS ACPI device.
Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com>
Reviewed-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit a961a285b479977fa21f12f71cd62f28adaba17c ]
The Asus X456UF has an airplane-mode indicator LED and the WMI WLAN user
bit set, so asus-wmi uses ASUS_WMI_DEVID_WLAN_LED (0x00010002) to store
the wlan state, which has a side-effect of driving the airplane mode
indicator LED in an inverted fashion.
quirk_no_rfkill prevents asus-wmi from registering RFKill switches at
all for this laptop and allows asus-wireless to drive the LED through
the ASHS ACPI device. This laptop already has a quirk for setting
WAPF=4, so this commit creates a new quirk, quirk_no_rfkill_wapf4, which
both disables rfkill and sets WAPF=4.
Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com>
Reported-by: Carlo Caione <carlo@endlessm.com>
Reviewed-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit a977e59c0c67c9d492bb16677ce66d67cae0ebd8 ]
Some Asus laptops that have an airplane-mode indicator LED, also have
the WMI WLAN user bit set, and the following bits in their DSDT:
Scope (_SB)
{
(...)
Device (ATKD)
{
(...)
Method (WMNB, 3, Serialized)
{
(...)
If (LEqual (IIA0, 0x00010002))
{
OWGD (IIA1)
Return (One)
}
}
}
}
So when asus-wmi uses ASUS_WMI_DEVID_WLAN_LED (0x00010002) to store the
wlan state, it drives the airplane-mode indicator LED (through the call
to OWGD) in an inverted fashion: the LED is ON when airplane mode is OFF
(since wlan is ON), and vice-versa.
This commit creates a quirk to not register a RFKill switch at all for
these laptops, to allow the asus-wireless driver to drive the airplane
mode LED correctly through the ASHS ACPI device. It also adds a match to
that quirk for the Asus X555UB, which is affected by this problem.
Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com>
Reviewed-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
commit 9a63236f1ad82d71a98aa80320b6cb618fb32f44 upstream.
It's possible to hit the WARN_ON_ONCE(page_mapped(page)) in
remove_stable_node() when it races with __mmput() and squeezes in
between ksm_exit() and exit_mmap().
WARNING: CPU: 0 PID: 3295 at mm/ksm.c:888 remove_stable_node+0x10c/0x150
Call Trace:
remove_all_stable_nodes+0x12b/0x330
run_store+0x4ef/0x7b0
kernfs_fop_write+0x200/0x420
vfs_write+0x154/0x450
ksys_write+0xf9/0x1d0
do_syscall_64+0x99/0x510
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Remove the warning as there is nothing scary going on.
Link: http://lkml.kernel.org/r/20191119131850.5675-1-aryabinin@virtuozzo.com
Fixes: cbf86cfe04 ("ksm: remove old stable nodes more thoroughly")
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Acked-by: Hugh Dickins <hughd@google.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 94b07b6f9e2e996afff7395de6b35f34f4cb10bf upstream.
This reverts commit 56e94ea132bb5c2c1d0b60a6aeb34dcb7d71a53d.
Commit 56e94ea132bb ("fs: ocfs2: fix possible null-pointer dereferences
in ocfs2_xa_prepare_entry()") introduces a regression that fail to
create directory with mount option user_xattr and acl. Actually the
reported NULL pointer dereference case can be correctly handled by
loc->xl_ops->xlo_add_entry(), so revert it.
Link: http://lkml.kernel.org/r/1573624916-83825-1-git-send-email-joseph.qi@linux.alibaba.com
Fixes: 56e94ea132bb ("fs: ocfs2: fix possible null-pointer dereferences in ocfs2_xa_prepare_entry()")
Signed-off-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Reported-by: Thomas Voegtle <tv@lio96.de>
Acked-by: Changwei Ge <gechangwei@live.cn>
Cc: Jia-Ju Bai <baijiaju1990@gmail.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 723eb53690041740a13ac78efeaf6804f5d684c9 ]
The workqueue only exists for the primary PF. For other functions
we hit a WARN_ON in kernel/workqueue.c.
Fixes: 7c236c43b8 ("sfc: Add support for IEEE-1588 PTP")
Signed-off-by: Martin Habets <mhabets@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit 34e59836565e36fade1464e054a3551c1a0364be ]
ethtool expects ETHTOOL_GRXCLSRLALL to set ethtool_rxnfc->data with the
total number of entries in the rx classifier table. Surprisingly, mlx4
is missing this part (in principle ethtool could still move forward and
try the insert).
Tested: compiled and run command:
phh13:~# ethtool -N eth1 flow-type udp4 queue 4
Added rule with ID 255
Signed-off-by: Luigi Rizzo <lrizzo@google.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* refs/heads/tmp-40ef73d
Linux 4.4.203
arm64: uaccess: Ensure PAN is re-enabled after unhandled uaccess fault
spi: rockchip: initialize dma_slave_config properly
mac80211: minstrel: fix CCK rate group streams value
hwmon: (pwm-fan) Silence error on probe deferral
ARM: 8802/1: Call syscall_trace_exit even when system call skipped
spi: spidev: Fix OF tree warning logic
gpio: syscon: Fix possible NULL ptr usage
x86/kexec: Correct KEXEC_BACKUP_SRC_END off-by-one error
media: cx231xx: fix potential sign-extension overflow on large shift
GFS2: Flush the GFS2 delete workqueue before stopping the kernel threads
media: isif: fix a NULL pointer dereference bug
printk: Give error on attempt to set log buffer length to over 2G
backlight: lm3639: Unconditionally call led_classdev_unregister
proc/vmcore: Fix i386 build error of missing copy_oldmem_page_encrypted()
bcache: recal cached_dev_sectors on detach
fbdev: sbuslib: integer overflow in sbusfb_ioctl_helper()
fbdev: sbuslib: use checked version of put_user()
ACPI / SBS: Fix rare oops when removing modules
crypto: mxs-dcp - Fix AES issues
crypto: mxs-dcp - Fix SHA null hashes and output length
x86/olpc: Fix build error with CONFIG_MFD_CS5535=m
Input: st1232 - set INPUT_PROP_DIRECT property
dmaengine: ioat: fix prototype of ioat_enumerate_channels
NFSv4.x: fix lock recovery during delegation recall
brcmfmac: fix full timeout waiting for action frame on-channel tx
mtd: physmap_of: Release resources on error
USB: serial: cypress_m8: fix interrupt-out transfer length
KVM: PPC: Book3S PR: Exiting split hack mode needs to fixup both PC and LR
ALSA: hda/sigmatel - Disable automute for Elo VuPoint
ata: ep93xx: Use proper enums for directions
IB/mthca: Fix error return code in __mthca_init_one()
ixgbe: Fix crash with VFs and flow director on interface flap
mtd: rawnand: sh_flctl: Use proper enum for flctl_dma_fifo0_transfer
powerpc/pseries: Fix how we iterate over the DTL entries
powerpc/pseries: Fix DTL buffer registration
cxgb4: Use proper enum in IEEE_FAUX_SYNC
cxgb4: Use proper enum in cxgb4_dcb_handle_fw_update
mei: samples: fix a signedness bug in amt_host_if_call()
dmaengine: timb_dma: Use proper enum in td_prep_slave_sg
dmaengine: ep93xx: Return proper enum in ep93xx_dma_chan_direction
nl80211: Fix a GET_KEY reply attribute
usb: gadget: udc: fotg210-udc: Fix a sleep-in-atomic-context bug in fotg210_get_status()
ath9k: fix reporting calculated new FFT upper max
ath10k: fix vdev-start timeout on error
SUNRPC: Fix priority queue fairness
f2fs: return correct errno in f2fs_gc
net: ovs: fix return type of ndo_start_xmit function
libata: have ata_scsi_rw_xlat() fail invalid passthrough requests
block: introduce blk_rq_is_passthrough
fbdev: Ditch fb_edid_add_monspecs
fbdev: Remove unused SH-Mobile HDMI driver
uprobes/x86: Prohibit probing on MOV SS instruction
kprobes/x86: Prohibit probing on exception masking instructions
apparmor: fix module parameters can be changed after policy is locked
apparmor: fix update the mtime of the profile file on replacement
apparmor: fix uninitialized lsm_audit member
x86/atomic: Fix smp_mb__{before,after}_atomic()
net: cdc_ncm: Signedness bug in cdc_ncm_set_dgram_size()
slcan: Fix memory leak in error path
memfd: Use radix_tree_deref_slot_protected to avoid the warning.
Bluetooth: hci_ldisc: Postpone HCI_UART_PROTO_READY bit set in hci_uart_set_proto()
Bluetooth: hci_ldisc: Fix null pointer derefence in case of early data
fuse: use READ_ONCE on congestion_threshold and max_background
arm64: dts: amd: Fix SPI bus warnings
Bluetooth: L2CAP: Detect if remote is not able to use the whole MPS
EDAC: Raise the maximum number of memory controllers
net: smsc: fix return type of ndo_start_xmit function
ARM: tegra: apalis_t30: fix mmc1 cmd pull-up
ARM: dts: tegra30: fix xcvr-setup-use-fuses
scsi: libsas: always unregister the old device if going to discover new
vfio/pci: Fix potential memory leak in vfio_msi_cap_len
misc: genwqe: should return proper error value.
misc: kgdbts: Fix restrict error
usb: gadget: uvc: Only halt video streaming endpoint in bulk mode
usb: gadget: uvc: Factor out video USB request queueing
usb: gadget: uvc: configfs: Prevent format changes after linking header
usb: gadget: uvc: configfs: Drop leaked references to config items
media: davinci: Fix implicit enum conversion warning
media: pci: ivtv: Fix a sleep-in-atomic-context bug in ivtv_yuv_init()
MIPS: kexec: Relax memory restriction
x86/CPU: Use correct macros for Cyrix calls
net: micrel: fix return type of ndo_start_xmit function
bnx2x: Ignore bandwidth attention in single function mode
cpufeature: avoid warning when compiling with clang
ARM: dts: ste: Fix SPI controller node names
ARM: dts: ux500: Fix LCDA clock line muxing
ARM: dts: ux500: Correct SCU unit address
ARM: dts: am335x-evm: fix number of cpsw
usb: chipidea: Fix otg event handler
net: amd: fix return type of ndo_start_xmit function
net: broadcom: fix return type of ndo_start_xmit function
net: xilinx: fix return type of ndo_start_xmit function
net: toshiba: fix return type of ndo_start_xmit function
power: supply: twl4030_charger: disable eoc interrupt on linear charge
power: supply: twl4030_charger: fix charging current out-of-bounds
libfdt: Ensure INT_MAX is defined in libfdt_env.h
powerpc/pseries: Disable CPU hotplug across migrations
powerpc/64s/hash: Fix stab_rr off by one initialization
powerpc/iommu: Avoid derefence before pointer check
serial: mxs-auart: Fix potential infinite loop
PCI/ACPI: Correct error message for ASPM disabling
s390/qeth: invoke softirqs after napi_schedule()
kernfs: Fix range checks in kernfs_get_target_path
power: supply: max8998-charger: Fix platform data retrieval
power: supply: ab8500_fg: silence uninitialized variable warnings
cxgb4: Fix endianness issue in t4_fwcache()
pinctrl: at91: don't use the same irqchip with multiple gpiochips
ARM: dts: socfpga: Fix I2C bus unit-address error
powerpc/vdso: Correct call frame information
llc: avoid blocking in llc_sap_close()
pinctrl: at91-pio4: fix has_config check in atmel_pctl_dt_subnode_to_map()
ALSA: intel8x0m: Register irq handler after register initializations
media: fix: media: pci: meye: validate offset to avoid arbitrary access
nvmem: core: return error code instead of NULL from nvmem_device_get
kprobes: Don't call BUG_ON() if there is a kprobe in use on free list
scsi: pm80xx: Fixed system hang issue during kexec boot
scsi: pm80xx: Corrected dma_unmap_sg() parameter
ARM: imx6: register pm_power_off handler if "fsl,pmic-stby-poweroff" is set
scsi: sym53c8xx: fix NULL pointer dereference panic in sym_int_sir()
signal: Properly deliver SIGSEGV from x86 uprobes
signal: Properly deliver SIGILL from uprobes
signal: Always ignore SIGKILL and SIGSTOP sent to the global init
dmaengine: dma-jz4780: Further residue status fix
ARM: dts: omap3-gta04: keep vpll2 always on
ARM: dts: omap3-gta04: make NAND partitions compatible with recent U-Boot
ARM: dts: omap3-gta04: tvout: enable as display1 alias
ARM: dts: omap3-gta04: give spi_lcd node a label so that we can overwrite in other DTS files
of: make PowerMac cache node search conditional on CONFIG_PPC_PMAC
mips: txx9: fix iounmap related issue
ath10k: wmi: disable softirq's while calling ieee80211_rx
ASoC: sgtl5000: avoid division by zero if lo_vag is zero
net: lan78xx: Bail out if lan78xx_get_endpoints fails
rtl8187: Fix warning generated when strncpy() destination length matches the sixe argument
ARM: dts: pxa: fix power i2c base address
i40e: Prevent deleting MAC address from VF when set by PF
i40e: hold the rtnl lock on clearing interrupt scheme
i40e: use correct length for strncpy
ARM: dts: exynos: Fix sound in Snow-rev5 Chromebook
MIPS: BCM47XX: Enable USB power on Netgear WNDR3400v3
ASoC: dpcm: Properly initialise hw->rate_max
gfs2: Don't set GFS2_RDF_UPTODATE when the lvb is updated
ALSA: seq: Do error checks at creating system ports
ARM: dts: at91/trivial: Fix USART1 definition for at91sam9g45
ALSA: pcm: signedness bug in snd_pcm_plug_alloc()
iio: dac: mcp4922: fix error handling in mcp4922_write_raw
mmc: sdhci-of-at91: fix quirk2 overwrite
mm: hugetlb: switch to css_tryget() in hugetlb_cgroup_charge_cgroup()
mm: memcg: switch to css_tryget() in get_mem_cgroup_from_mm()
iommu/vt-d: Fix QI_DEV_IOTLB_PFSID and QI_DEV_EIOTLB_PFSID macros
ecryptfs_lookup_interpose(): lower_dentry->d_parent is not stable either
ecryptfs_lookup_interpose(): lower_dentry->d_inode is not stable
Input: ff-memless - kill timer in destroy()
ALSA: usb-audio: not submit urb for stopped endpoint
ALSA: usb-audio: Fix missing error check at mixer resolution test
ax88172a: fix information leak on short answers
slip: Fix memory leak in slip_open error path
Conflicts:
include/linux/libfdt_env.h
Change-Id: I9f83f275479e286f79b6744124c23cdbfff90114
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>
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Merge 4.4.203 into android-4.4-p
Changes in 4.4.203
slip: Fix memory leak in slip_open error path
ax88172a: fix information leak on short answers
ALSA: usb-audio: Fix missing error check at mixer resolution test
ALSA: usb-audio: not submit urb for stopped endpoint
Input: ff-memless - kill timer in destroy()
ecryptfs_lookup_interpose(): lower_dentry->d_inode is not stable
ecryptfs_lookup_interpose(): lower_dentry->d_parent is not stable either
iommu/vt-d: Fix QI_DEV_IOTLB_PFSID and QI_DEV_EIOTLB_PFSID macros
mm: memcg: switch to css_tryget() in get_mem_cgroup_from_mm()
mm: hugetlb: switch to css_tryget() in hugetlb_cgroup_charge_cgroup()
mmc: sdhci-of-at91: fix quirk2 overwrite
iio: dac: mcp4922: fix error handling in mcp4922_write_raw
ALSA: pcm: signedness bug in snd_pcm_plug_alloc()
ARM: dts: at91/trivial: Fix USART1 definition for at91sam9g45
ALSA: seq: Do error checks at creating system ports
gfs2: Don't set GFS2_RDF_UPTODATE when the lvb is updated
ASoC: dpcm: Properly initialise hw->rate_max
MIPS: BCM47XX: Enable USB power on Netgear WNDR3400v3
ARM: dts: exynos: Fix sound in Snow-rev5 Chromebook
i40e: use correct length for strncpy
i40e: hold the rtnl lock on clearing interrupt scheme
i40e: Prevent deleting MAC address from VF when set by PF
ARM: dts: pxa: fix power i2c base address
rtl8187: Fix warning generated when strncpy() destination length matches the sixe argument
net: lan78xx: Bail out if lan78xx_get_endpoints fails
ASoC: sgtl5000: avoid division by zero if lo_vag is zero
ath10k: wmi: disable softirq's while calling ieee80211_rx
mips: txx9: fix iounmap related issue
of: make PowerMac cache node search conditional on CONFIG_PPC_PMAC
ARM: dts: omap3-gta04: give spi_lcd node a label so that we can overwrite in other DTS files
ARM: dts: omap3-gta04: tvout: enable as display1 alias
ARM: dts: omap3-gta04: make NAND partitions compatible with recent U-Boot
ARM: dts: omap3-gta04: keep vpll2 always on
dmaengine: dma-jz4780: Further residue status fix
signal: Always ignore SIGKILL and SIGSTOP sent to the global init
signal: Properly deliver SIGILL from uprobes
signal: Properly deliver SIGSEGV from x86 uprobes
scsi: sym53c8xx: fix NULL pointer dereference panic in sym_int_sir()
ARM: imx6: register pm_power_off handler if "fsl,pmic-stby-poweroff" is set
scsi: pm80xx: Corrected dma_unmap_sg() parameter
scsi: pm80xx: Fixed system hang issue during kexec boot
kprobes: Don't call BUG_ON() if there is a kprobe in use on free list
nvmem: core: return error code instead of NULL from nvmem_device_get
media: fix: media: pci: meye: validate offset to avoid arbitrary access
ALSA: intel8x0m: Register irq handler after register initializations
pinctrl: at91-pio4: fix has_config check in atmel_pctl_dt_subnode_to_map()
llc: avoid blocking in llc_sap_close()
powerpc/vdso: Correct call frame information
ARM: dts: socfpga: Fix I2C bus unit-address error
pinctrl: at91: don't use the same irqchip with multiple gpiochips
cxgb4: Fix endianness issue in t4_fwcache()
power: supply: ab8500_fg: silence uninitialized variable warnings
power: supply: max8998-charger: Fix platform data retrieval
kernfs: Fix range checks in kernfs_get_target_path
s390/qeth: invoke softirqs after napi_schedule()
PCI/ACPI: Correct error message for ASPM disabling
serial: mxs-auart: Fix potential infinite loop
powerpc/iommu: Avoid derefence before pointer check
powerpc/64s/hash: Fix stab_rr off by one initialization
powerpc/pseries: Disable CPU hotplug across migrations
libfdt: Ensure INT_MAX is defined in libfdt_env.h
power: supply: twl4030_charger: fix charging current out-of-bounds
power: supply: twl4030_charger: disable eoc interrupt on linear charge
net: toshiba: fix return type of ndo_start_xmit function
net: xilinx: fix return type of ndo_start_xmit function
net: broadcom: fix return type of ndo_start_xmit function
net: amd: fix return type of ndo_start_xmit function
usb: chipidea: Fix otg event handler
ARM: dts: am335x-evm: fix number of cpsw
ARM: dts: ux500: Correct SCU unit address
ARM: dts: ux500: Fix LCDA clock line muxing
ARM: dts: ste: Fix SPI controller node names
cpufeature: avoid warning when compiling with clang
bnx2x: Ignore bandwidth attention in single function mode
net: micrel: fix return type of ndo_start_xmit function
x86/CPU: Use correct macros for Cyrix calls
MIPS: kexec: Relax memory restriction
media: pci: ivtv: Fix a sleep-in-atomic-context bug in ivtv_yuv_init()
media: davinci: Fix implicit enum conversion warning
usb: gadget: uvc: configfs: Drop leaked references to config items
usb: gadget: uvc: configfs: Prevent format changes after linking header
usb: gadget: uvc: Factor out video USB request queueing
usb: gadget: uvc: Only halt video streaming endpoint in bulk mode
misc: kgdbts: Fix restrict error
misc: genwqe: should return proper error value.
vfio/pci: Fix potential memory leak in vfio_msi_cap_len
scsi: libsas: always unregister the old device if going to discover new
ARM: dts: tegra30: fix xcvr-setup-use-fuses
ARM: tegra: apalis_t30: fix mmc1 cmd pull-up
net: smsc: fix return type of ndo_start_xmit function
EDAC: Raise the maximum number of memory controllers
Bluetooth: L2CAP: Detect if remote is not able to use the whole MPS
arm64: dts: amd: Fix SPI bus warnings
fuse: use READ_ONCE on congestion_threshold and max_background
Bluetooth: hci_ldisc: Fix null pointer derefence in case of early data
Bluetooth: hci_ldisc: Postpone HCI_UART_PROTO_READY bit set in hci_uart_set_proto()
memfd: Use radix_tree_deref_slot_protected to avoid the warning.
slcan: Fix memory leak in error path
net: cdc_ncm: Signedness bug in cdc_ncm_set_dgram_size()
x86/atomic: Fix smp_mb__{before,after}_atomic()
apparmor: fix uninitialized lsm_audit member
apparmor: fix update the mtime of the profile file on replacement
apparmor: fix module parameters can be changed after policy is locked
kprobes/x86: Prohibit probing on exception masking instructions
uprobes/x86: Prohibit probing on MOV SS instruction
fbdev: Remove unused SH-Mobile HDMI driver
fbdev: Ditch fb_edid_add_monspecs
block: introduce blk_rq_is_passthrough
libata: have ata_scsi_rw_xlat() fail invalid passthrough requests
net: ovs: fix return type of ndo_start_xmit function
f2fs: return correct errno in f2fs_gc
SUNRPC: Fix priority queue fairness
ath10k: fix vdev-start timeout on error
ath9k: fix reporting calculated new FFT upper max
usb: gadget: udc: fotg210-udc: Fix a sleep-in-atomic-context bug in fotg210_get_status()
nl80211: Fix a GET_KEY reply attribute
dmaengine: ep93xx: Return proper enum in ep93xx_dma_chan_direction
dmaengine: timb_dma: Use proper enum in td_prep_slave_sg
mei: samples: fix a signedness bug in amt_host_if_call()
cxgb4: Use proper enum in cxgb4_dcb_handle_fw_update
cxgb4: Use proper enum in IEEE_FAUX_SYNC
powerpc/pseries: Fix DTL buffer registration
powerpc/pseries: Fix how we iterate over the DTL entries
mtd: rawnand: sh_flctl: Use proper enum for flctl_dma_fifo0_transfer
ixgbe: Fix crash with VFs and flow director on interface flap
IB/mthca: Fix error return code in __mthca_init_one()
ata: ep93xx: Use proper enums for directions
ALSA: hda/sigmatel - Disable automute for Elo VuPoint
KVM: PPC: Book3S PR: Exiting split hack mode needs to fixup both PC and LR
USB: serial: cypress_m8: fix interrupt-out transfer length
mtd: physmap_of: Release resources on error
brcmfmac: fix full timeout waiting for action frame on-channel tx
NFSv4.x: fix lock recovery during delegation recall
dmaengine: ioat: fix prototype of ioat_enumerate_channels
Input: st1232 - set INPUT_PROP_DIRECT property
x86/olpc: Fix build error with CONFIG_MFD_CS5535=m
crypto: mxs-dcp - Fix SHA null hashes and output length
crypto: mxs-dcp - Fix AES issues
ACPI / SBS: Fix rare oops when removing modules
fbdev: sbuslib: use checked version of put_user()
fbdev: sbuslib: integer overflow in sbusfb_ioctl_helper()
bcache: recal cached_dev_sectors on detach
proc/vmcore: Fix i386 build error of missing copy_oldmem_page_encrypted()
backlight: lm3639: Unconditionally call led_classdev_unregister
printk: Give error on attempt to set log buffer length to over 2G
media: isif: fix a NULL pointer dereference bug
GFS2: Flush the GFS2 delete workqueue before stopping the kernel threads
media: cx231xx: fix potential sign-extension overflow on large shift
x86/kexec: Correct KEXEC_BACKUP_SRC_END off-by-one error
gpio: syscon: Fix possible NULL ptr usage
spi: spidev: Fix OF tree warning logic
ARM: 8802/1: Call syscall_trace_exit even when system call skipped
hwmon: (pwm-fan) Silence error on probe deferral
mac80211: minstrel: fix CCK rate group streams value
spi: rockchip: initialize dma_slave_config properly
arm64: uaccess: Ensure PAN is re-enabled after unhandled uaccess fault
Linux 4.4.203
Change-Id: Icba08e9fbb6f47274ee6fcf1023a1469cd8550d3
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
commit 94bb804e1e6f0a9a77acf20d7c70ea141c6c821e upstream.
A number of our uaccess routines ('__arch_clear_user()' and
'__arch_copy_{in,from,to}_user()') fail to re-enable PAN if they
encounter an unhandled fault whilst accessing userspace.
For CPUs implementing both hardware PAN and UAO, this bug has no effect
when both extensions are in use by the kernel.
For CPUs implementing hardware PAN but not UAO, this means that a kernel
using hardware PAN may execute portions of code with PAN inadvertently
disabled, opening us up to potential security vulnerabilities that rely
on userspace access from within the kernel which would usually be
prevented by this mechanism. In other words, parts of the kernel run the
same way as they would on a CPU without PAN implemented/emulated at all.
For CPUs not implementing hardware PAN and instead relying on software
emulation via 'CONFIG_ARM64_SW_TTBR0_PAN=y', the impact is unfortunately
much worse. Calling 'schedule()' with software PAN disabled means that
the next task will execute in the kernel using the page-table and ASID
of the previous process even after 'switch_mm()', since the actual
hardware switch is deferred until return to userspace. At this point, or
if there is a intermediate call to 'uaccess_enable()', the page-table
and ASID of the new process are installed. Sadly, due to the changes
introduced by KPTI, this is not an atomic operation and there is a very
small window (two instructions) where the CPU is configured with the
page-table of the old task and the ASID of the new task; a speculative
access in this state is disastrous because it would corrupt the TLB
entries for the new task with mappings from the previous address space.
As Pavel explains:
| I was able to reproduce memory corruption problem on Broadcom's SoC
| ARMv8-A like this:
|
| Enable software perf-events with PERF_SAMPLE_CALLCHAIN so userland's
| stack is accessed and copied.
|
| The test program performed the following on every CPU and forking
| many processes:
|
| unsigned long *map = mmap(NULL, PAGE_SIZE, PROT_READ|PROT_WRITE,
| MAP_SHARED | MAP_ANONYMOUS, -1, 0);
| map[0] = getpid();
| sched_yield();
| if (map[0] != getpid()) {
| fprintf(stderr, "Corruption detected!");
| }
| munmap(map, PAGE_SIZE);
|
| From time to time I was getting map[0] to contain pid for a
| different process.
Ensure that PAN is re-enabled when returning after an unhandled user
fault from our uaccess routines.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Cc: <stable@vger.kernel.org>
Fixes: 338d4f49d6 ("arm64: kernel: Add support for Privileged Access Never")
Signed-off-by: Pavel Tatashin <pasha.tatashin@soleen.com>
[will: rewrote commit message]
[will: backport for 4.4.y stable kernels]
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit dd8fd2cbc73f8650f651da71fc61a6e4f30c1566 ]
The rxconf and txconf structs are allocated on the
stack, so make sure we zero them before filling out
the relevant fields.
Signed-off-by: Huibin Hong <huibin.hong@rock-chips.com>
Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 80df9be67c44cb636bbc92caeddad8caf334c53c ]
Fixes a harmless underflow issue when CCK rates are actively being used
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
