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commit 51dede9c05df2b78acd6dcf6a17d21f0877d2d7b upstream.
Accessing the MCA thresholding controls in sysfs concurrently with CPU
hotplug can lead to a couple of KASAN-reported issues:
BUG: KASAN: use-after-free in sysfs_file_ops+0x155/0x180
Read of size 8 at addr ffff888367578940 by task grep/4019
and
BUG: KASAN: use-after-free in show_error_count+0x15c/0x180
Read of size 2 at addr ffff888368a05514 by task grep/4454
for example. Both result from the fact that the threshold block
creation/teardown code frees the descriptor memory itself instead of
defining proper ->release function and leaving it to the driver core to
take care of that, after all sysfs accesses have completed.
Do that and get rid of the custom freeing code, fixing the above UAFs in
the process.
[ bp: write commit message. ]
Fixes: 95268664390b ("[PATCH] x86_64: mce_amd support for family 0x10 processors")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/20200214082801.13836-1-bp@alien8.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 4ddf8ab8d15ddbc52eefb44eb64e38466ce1f70f upstream.
In routine wpa_supplicant_ioctl(), the user-controlled p->length is
checked to be at least the size of struct ieee_param size, but the code
does not detect the case where p->length is greater than the size
of the struct, thus a malicious user could be wasting kernel memory.
Fixes commit a2c60d42d97c ("Add files for new driver - part 16").
Reported by: Pietro Oliva <pietroliva@gmail.com>
Cc: Pietro Oliva <pietroliva@gmail.com>
Cc: Stable <stable@vger.kernel.org>
Fixes commit a2c60d42d97c ("Add files for new driver - part 16").
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Link: https://lore.kernel.org/r/20200210180235.21691-4-Larry.Finger@lwfinger.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 499c405b2b80bb3a04425ba3541d20305e014d3e upstream.
In routine rtw_hostapd_ioctl(), the user-controlled p->length is assumed
to be at least the size of struct ieee_param size, but this assumption is
never checked. This could result in out-of-bounds read/write on kernel
heap in case a p->length less than the size of struct ieee_param is
specified by the user. If p->length is allowed to be greater than the size
of the struct, then a malicious user could be wasting kernel memory.
Fixes commit a2c60d42d97c ("Add files for new driver - part 16").
Reported by: Pietro Oliva <pietroliva@gmail.com>
Cc: Pietro Oliva <pietroliva@gmail.com>
Cc: Stable <stable@vger.kernel.org>
Fixes: a2c60d42d97c ("staging: r8188eu: Add files for new driver - part 16")
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Link: https://lore.kernel.org/r/20200210180235.21691-2-Larry.Finger@lwfinger.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 8099f58f1ecddf4f374f4828a3dff8397c7cbd74 upstream.
Paul Zimmerman reports that his USB Bluetooth adapter sometimes
crashes following system resume, when it receives a
Get-Device-Descriptor request while it is busy doing something else.
Such a request was added by commit a4f55d8b8c14 ("usb: hub: Check
device descriptor before resusciation"). It gets sent when the hub
driver's work thread checks whether a connect-change event on an
enabled port really indicates a new device has been connected, as
opposed to an old device momentarily disconnecting and then
reconnecting (which can happen with xHCI host controllers, since they
automatically enable connected ports).
The same kind of thing occurs when a port's power session is lost
during system suspend. When the system wakes up it sees a
connect-change event on the port, and if the child device's
persist_enabled flag was set then hub_activate() sets the device's
reset_resume flag as well as the port's bit in hub->change_bits. The
reset-resume code then takes responsibility for checking that the same
device is still attached to the port, and it does this as part of the
device's resume pathway. By the time the hub driver's work thread
starts up again, the device has already been fully reinitialized and
is busy doing its own thing. There's no need for the work thread to
do the same check a second time, and in fact this unnecessary check is
what caused the problem that Paul observed.
Note that performing the unnecessary check is not actually a bug.
Devices are supposed to be able to send descriptors back to the host
even when they are busy doing something else. The underlying cause of
Paul's problem lies in his Bluetooth adapter. Nevertheless, we
shouldn't perform the same check twice in a row -- and as a nice side
benefit, removing the extra check allows the Bluetooth adapter to work
more reliably.
The work thread performs its check when it sees that the port's bit is
set in hub->change_bits. In this situation that bit is interpreted as
though a connect-change event had occurred on the port _after_ the
reset-resume, which is not what actually happened.
One possible fix would be to make the reset-resume code clear the
port's bit in hub->change_bits. But it seems simpler to just avoid
setting the bit during hub_activate() in the first place. That's what
this patch does.
(Proving that the patch is correct when CONFIG_PM is disabled requires
a little thought. In that setting hub_activate() will be called only
for initialization and resets, since there won't be any resumes or
reset-resumes. During initialization and hub resets the hub doesn't
have any child devices, and so this code path never gets executed.)
Reported-and-tested-by: Paul Zimmerman <pauldzim@gmail.com>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://marc.info/?t=157949360700001&r=1&w=2
CC: David Heinzelmann <heinzelmann.david@gmail.com>
CC: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/Pine.LNX.4.44L0.2001311037460.1577-100000@iolanthe.rowland.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit b692056db8ecc7f452b934f016c17348282b7699 upstream.
Currently, the SourceControl will stay in power-down mode after resuming
from suspend. This patch resets the device after suspend to power it up.
Signed-off-by: Richard Dodd <richard.o.dodd@gmail.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200212142220.36892-1-richard.o.dodd@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 3e99862c05a9caa5a27969f41566b428696f5a9a upstream.
When a uas disk is plugged into an external hub, uas_probe()
will be called by the hub thread to do the probe. It will
first create a SCSI host and then do the scan for this host.
During the scan, it will probe the LUN using SCSI INQUERY command
which will be packed in the URB and submitted to uas disk.
There might be a chance that this external hub with uas disk
attached is unplugged during the scan. In this case, uas driver
will fail to submit the URB (due to the NOTATTACHED state of uas
device) and try to put this SCSI command back to request queue
waiting for next chance to run.
In normal case, this cycle will terminate when hub thread gets
disconnection event and calls into uas_disconnect() accordingly.
But in this case, uas_disconnect() will not be called because
hub thread of external hub gets stuck waiting for the completion
of this SCSI command. A deadlock happened.
In this fix, uas will call scsi_scan_host() asynchronously to
avoid the blocking of hub thread.
Signed-off-by: EJ Hsu <ejh@nvidia.com>
Acked-by: Oliver Neukum <oneukum@suse.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200130092506.102760-1-ejh@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 93134df520f23f4e9998c425b8987edca7016817 upstream.
bb_pre_ed_rssi is an u8 rx_dm always returns negative signed
values add minus operator to always yield positive.
fixes issue where rx sensitivity is always set to maximum because
the unsigned numbers were always greater then 100.
Fixes: 63b9907f58f1 ("staging: vt6656: mac80211 conversion: create rx function.")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Link: https://lore.kernel.org/r/aceac98c-6e69-3ce1-dfec-2bf27b980221@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 6d67b0290b4b84c477e6a2fc6e005e174d3c7786 upstream.
When ashmem file is mmapped, the resulting vma->vm_file points to the
backing shmem file with the generic fops that do not check ashmem
permissions like fops of ashmem do. If an mremap is done on the ashmem
region, then the permission checks will be skipped. Fix that by disallowing
mapping operation on the backing shmem file.
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Cc: stable <stable@vger.kernel.org> # 4.4,4.9,4.14,4.18,5.4
Signed-off-by: Todd Kjos <tkjos@google.com>
Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Link: https://lore.kernel.org/r/20200127235616.48920-1-tkjos@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 2e90ca68b0d2f5548804f22f0dd61145516171e3 upstream.
Jordy Zomer reported a KASAN out-of-bounds read in the floppy driver in
wait_til_ready().
Which on the face of it can't happen, since as Willy Tarreau points out,
the function does no particular memory access. Except through the FDCS
macro, which just indexes a static allocation through teh current fdc,
which is always checked against N_FDC.
Except the checking happens after we've already assigned the value.
The floppy driver is a disgrace (a lot of it going back to my original
horrd "design"), and has no real maintainer. Nobody has the hardware,
and nobody really cares. But it still gets used in virtual environment
because it's one of those things that everybody supports.
The whole thing should be re-written, or at least parts of it should be
seriously cleaned up. The 'current fdc' index, which is used by the
FDCS macro, and which is often shadowed by a local 'fdc' variable, is a
prime example of how not to write code.
But because nobody has the hardware or the motivation, let's just fix up
the immediate problem with a nasty band-aid: test the fdc index before
actually assigning it to the static 'fdc' variable.
Reported-by: Jordy Zomer <jordy@simplyhacker.com>
Cc: Willy Tarreau <w@1wt.eu>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 0f90522591fd09dd201065c53ebefdfe3c6b55cb ]
Recent months, our customer reported several kernel crashes all
preceding with following message:
NETDEV WATCHDOG: eth2 (enic): transmit queue 0 timed out
Error message of one of those crashes:
BUG: unable to handle kernel paging request at ffffffffa007e090
After analyzing severl vmcores, I found that most of crashes are
caused by memory corruption. And all the corrupted memory areas
are overwritten by data of network packets. Moreover, I also found
that the tx queues were enabled over watchdog reset.
After going through the source code, I found that in enic_stop(),
the tx queues stopped by netif_tx_disable() could be woken up over
a small time window between netif_tx_disable() and the
napi_disable() by the following code path:
napi_poll->
enic_poll_msix_wq->
vnic_cq_service->
enic_wq_service->
netif_wake_subqueue(enic->netdev, q_number)->
test_and_clear_bit(__QUEUE_STATE_DRV_XOFF, &txq->state)
In turn, upper netowrk stack could queue skb to ENIC NIC though
enic_hard_start_xmit(). And this might introduce some race condition.
Our customer comfirmed that this kind of kernel crash doesn't occur over
90 days since they applied this patch.
Signed-off-by: Firo Yang <firo.yang@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 030b995ad9ece9fa2d218af4429c1c78c2342096 ]
In AVC update we don't call avc_node_kill() when avc_xperms_populate()
fails, resulting in the avc->avc_cache.active_nodes counter having a
false value. In last patch this changes was missed , so correcting it.
Fixes: fa1aa143ac4a ("selinux: extended permissions for ioctls")
Signed-off-by: Jaihind Yadav <jaihindyadav@codeaurora.org>
Signed-off-by: Ravi Kumar Siddojigari <rsiddoji@codeaurora.org>
[PM: merge fuzz, minor description cleanup]
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit c8ab422553c81a0eb070329c63725df1cd1425bc ]
In brd_init func, rd_nr num of brd_device are firstly allocated
and add in brd_devices, then brd_devices are traversed to add each
brd_device by calling add_disk func. When allocating brd_device,
the disk->first_minor is set to i * max_part, if rd_nr * max_part
is larger than MINORMASK, two different brd_device may have the same
devt, then only one of them can be successfully added.
when rmmod brd.ko, it will cause oops when calling brd_exit.
Follow those steps:
# modprobe brd rd_nr=3 rd_size=102400 max_part=1048576
# rmmod brd
then, the oops will appear.
Oops log:
[ 726.613722] Call trace:
[ 726.614175] kernfs_find_ns+0x24/0x130
[ 726.614852] kernfs_find_and_get_ns+0x44/0x68
[ 726.615749] sysfs_remove_group+0x38/0xb0
[ 726.616520] blk_trace_remove_sysfs+0x1c/0x28
[ 726.617320] blk_unregister_queue+0x98/0x100
[ 726.618105] del_gendisk+0x144/0x2b8
[ 726.618759] brd_exit+0x68/0x560 [brd]
[ 726.619501] __arm64_sys_delete_module+0x19c/0x2a0
[ 726.620384] el0_svc_common+0x78/0x130
[ 726.621057] el0_svc_handler+0x38/0x78
[ 726.621738] el0_svc+0x8/0xc
[ 726.622259] Code: aa0203f6 aa0103f7 aa1e03e0 d503201f (7940e260)
Here, we add brd_check_and_reset_par func to check and limit max_part par.
--
V5->V6:
- remove useless code
V4->V5:(suggested by Ming Lei)
- make sure max_part is not larger than DISK_MAX_PARTS
V3->V4:(suggested by Ming Lei)
- remove useless change
- add one limit of max_part
V2->V3: (suggested by Ming Lei)
- clear .minors when running out of consecutive minor space in brd_alloc
- remove limit of rd_nr
V1->V2:
- add more checks in brd_check_par_valid as suggested by Ming Lei.
Signed-off-by: Zhiqiang Liu <liuzhiqiang26@huawei.com>
Reviewed-by: Bob Liu <bob.liu@oracle.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 061d2c1d593076424c910cb1b64ecdb5c9a6923f ]
In case the start + cache size is more than the max int the
start overflows.
Prevent the same.
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 107945227ac5d4c37911c7841b27c64b489ce9a9 ]
It looks like an obvious mistake to use its_mapc_cmd descriptor when
building the INVALL command block. It so far worked by luck because
both its_mapc_cmd.col and its_invall_cmd.col sit at the same offset of
the ITS command descriptor, but we should not rely on it.
Fixes: cc2d3216f53c ("irqchip: GICv3: ITS command queue")
Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20191202071021.1251-1-yuzenghui@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 7c02b0055f774ed9afb6e1c7724f33bf148ffdc0 ]
In bset.h, macro bset_bkey_last() is defined as,
bkey_idx((struct bkey *) (i)->d, (i)->keys)
Parameter i can be variable type of data structure, the macro always
works once the type of struct i has member 'd' and 'keys'.
bset_bkey_last() is also used in macro csum_set() to calculate the
checksum of a on-disk data structure. When csum_set() is used to
calculate checksum of on-disk bcache super block, the parameter 'i'
data type is struct cache_sb_disk. Inside struct cache_sb_disk (also in
struct cache_sb) the member keys is __u16 type. But bkey_idx() expects
unsigned int (a 32bit width), so there is problem when sending
parameters via stack to call bkey_idx().
Sparse tool from Intel 0day kbuild system reports this incompatible
problem. bkey_idx() is part of user space API, so the simplest fix is
to cast the (i)->keys to unsigned int type in macro bset_bkey_last().
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit aacee5446a2a1aa35d0a49dab289552578657fb4 ]
The variable inode may be NULL in reiserfs_insert_item(), but there is
no check before accessing the member of inode.
Fix this by adding NULL pointer check before calling reiserfs_debug().
Link: http://lkml.kernel.org/r/79c5135d-ff25-1cc9-4e99-9f572b88cc00@huawei.com
Signed-off-by: Yunfeng Ye <yeyunfeng@huawei.com>
Cc: zhengbin <zhengbin13@huawei.com>
Cc: Hu Shiyuan <hushiyuan@huawei.com>
Cc: Feilong Lin <linfeilong@huawei.com>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 4e456fee215677584cafa7f67298a76917e89c64 ]
Clang warns:
../lib/scatterlist.c:314:5: warning: misleading indentation; statement
is not part of the previous 'if' [-Wmisleading-indentation]
return -ENOMEM;
^
../lib/scatterlist.c:311:4: note: previous statement is here
if (prv)
^
1 warning generated.
This warning occurs because there is a space before the tab on this
line. Remove it so that the indentation is consistent with the Linux
kernel coding style and clang no longer warns.
Link: http://lkml.kernel.org/r/20191218033606.11942-1-natechancellor@gmail.com
Link: https://github.com/ClangBuiltLinux/linux/issues/830
Fixes: edce6820a9fd ("scatterlist: prevent invalid free when alloc fails")
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 9f16ca48fc818a17de8be1f75d08e7f4addc4497 ]
I found a NULL pointer dereference in ocfs2_update_inode_fsync_trans(),
handle->h_transaction may be NULL in this situation:
ocfs2_file_write_iter
->__generic_file_write_iter
->generic_perform_write
->ocfs2_write_begin
->ocfs2_write_begin_nolock
->ocfs2_write_cluster_by_desc
->ocfs2_write_cluster
->ocfs2_mark_extent_written
->ocfs2_change_extent_flag
->ocfs2_split_extent
->ocfs2_try_to_merge_extent
->ocfs2_extend_rotate_transaction
->ocfs2_extend_trans
->jbd2_journal_restart
->jbd2__journal_restart
// handle->h_transaction is NULL here
->handle->h_transaction = NULL;
->start_this_handle
/* journal aborted due to storage
network disconnection, return error */
->return -EROFS;
/* line 3806 in ocfs2_try_to_merge_extent (),
it will ignore ret error. */
->ret = 0;
->...
->ocfs2_write_end
->ocfs2_write_end_nolock
->ocfs2_update_inode_fsync_trans
// NULL pointer dereference
->oi->i_sync_tid = handle->h_transaction->t_tid;
The information of NULL pointer dereference as follows:
JBD2: Detected IO errors while flushing file data on dm-11-45
Aborting journal on device dm-11-45.
JBD2: Error -5 detected when updating journal superblock for dm-11-45.
(dd,22081,3):ocfs2_extend_trans:474 ERROR: status = -30
(dd,22081,3):ocfs2_try_to_merge_extent:3877 ERROR: status = -30
Unable to handle kernel NULL pointer dereference at
virtual address 0000000000000008
Mem abort info:
ESR = 0x96000004
Exception class = DABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
Data abort info:
ISV = 0, ISS = 0x00000004
CM = 0, WnR = 0
user pgtable: 4k pages, 48-bit VAs, pgdp = 00000000e74e1338
[0000000000000008] pgd=0000000000000000
Internal error: Oops: 96000004 [#1] SMP
Process dd (pid: 22081, stack limit = 0x00000000584f35a9)
CPU: 3 PID: 22081 Comm: dd Kdump: loaded
Hardware name: Huawei TaiShan 2280 V2/BC82AMDD, BIOS 0.98 08/25/2019
pstate: 60400009 (nZCv daif +PAN -UAO)
pc : ocfs2_write_end_nolock+0x2b8/0x550 [ocfs2]
lr : ocfs2_write_end_nolock+0x2a0/0x550 [ocfs2]
sp : ffff0000459fba70
x29: ffff0000459fba70 x28: 0000000000000000
x27: ffff807ccf7f1000 x26: 0000000000000001
x25: ffff807bdff57970 x24: ffff807caf1d4000
x23: ffff807cc79e9000 x22: 0000000000001000
x21: 000000006c6cd000 x20: ffff0000091d9000
x19: ffff807ccb239db0 x18: ffffffffffffffff
x17: 000000000000000e x16: 0000000000000007
x15: ffff807c5e15bd78 x14: 0000000000000000
x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000000000 x10: 0000000000000001
x9 : 0000000000000228 x8 : 000000000000000c
x7 : 0000000000000fff x6 : ffff807a308ed6b0
x5 : ffff7e01f10967c0 x4 : 0000000000000018
x3 : d0bc661572445600 x2 : 0000000000000000
x1 : 000000001b2e0200 x0 : 0000000000000000
Call trace:
ocfs2_write_end_nolock+0x2b8/0x550 [ocfs2]
ocfs2_write_end+0x4c/0x80 [ocfs2]
generic_perform_write+0x108/0x1a8
__generic_file_write_iter+0x158/0x1c8
ocfs2_file_write_iter+0x668/0x950 [ocfs2]
__vfs_write+0x11c/0x190
vfs_write+0xac/0x1c0
ksys_write+0x6c/0xd8
__arm64_sys_write+0x24/0x30
el0_svc_common+0x78/0x130
el0_svc_handler+0x38/0x78
el0_svc+0x8/0xc
To prevent NULL pointer dereference in this situation, we use
is_handle_aborted() before using handle->h_transaction->t_tid.
Link: http://lkml.kernel.org/r/03e750ab-9ade-83aa-b000-b9e81e34e539@huawei.com
Signed-off-by: Yan Wang <wangyan122@huawei.com>
Reviewed-by: Jun Piao <piaojun@huawei.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joseph Qi <jiangqi903@gmail.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit ec3d65082d7dabad6fa8f66a8ef166f2d522d6b2 ]
Per at least one tester this is enough magic to recover the regression
introduced for some people (but not all) in
commit b8e2b0199cc377617dc238f5106352c06dcd3fa2
Author: Peter Rosin <peda@axentia.se>
Date: Tue Jul 4 12:36:57 2017 +0200
drm/fb-helper: factor out pseudo-palette
which for radeon had the side-effect of refactoring out a seemingly
redudant writing of the color palette.
10ms in a fairly slow modeset path feels like an acceptable form of
duct-tape, so maybe worth a shot and see what sticks.
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Michel Dänzer <michel.daenzer@amd.com>
References: https://bugzilla.kernel.org/show_bug.cgi?id=198123
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 6722b23e7a2ace078344064a9735fb73e554e9ef ]
if seq_file .next fuction does not change position index,
read after some lseek can generate unexpected output.
Without patch:
# dd bs=30 skip=1 if=/sys/kernel/tracing/events/sched/sched_switch/trigger
dd: /sys/kernel/tracing/events/sched/sched_switch/trigger: cannot skip to specified offset
n traceoff snapshot stacktrace enable_event disable_event enable_hist disable_hist hist
# Available triggers:
# traceon traceoff snapshot stacktrace enable_event disable_event enable_hist disable_hist hist
6+1 records in
6+1 records out
206 bytes copied, 0.00027916 s, 738 kB/s
Notice the printing of "# Available triggers:..." after the line.
With the patch:
# dd bs=30 skip=1 if=/sys/kernel/tracing/events/sched/sched_switch/trigger
dd: /sys/kernel/tracing/events/sched/sched_switch/trigger: cannot skip to specified offset
n traceoff snapshot stacktrace enable_event disable_event enable_hist disable_hist hist
2+1 records in
2+1 records out
88 bytes copied, 0.000526867 s, 167 kB/s
It only prints the end of the file, and does not restart.
Link: http://lkml.kernel.org/r/3c35ee24-dd3a-8119-9c19-552ed253388a@virtuozzo.com
https://bugzilla.kernel.org/show_bug.cgi?id=206283
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 0e6176c6d286316e9431b4f695940cfac4ffe6c2 ]
The implementations for most channel types contains a map of methods to
priv registers in order to provide debugging info when a disp exception
has been raised.
This info is missing from the implementation of PIO channels as they're
rather simplistic already, however, if an exception is raised by one of
them, we'd end up triggering a NULL-pointer deref. Not ideal...
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=206299
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit c2f9a4e4a5abfc84c01b738496b3fd2d471e0b18 ]
The loop counter addr is a u16 where as the upper limit of the loop
is an int. In the unlikely event that the il->cfg->eeprom_size is
greater than 64K then we end up with an infinite loop since addr will
wrap around an never reach upper loop limit. Fix this by making addr
an int.
Addresses-Coverity: ("Infinite loop")
Fixes: be663ab67077 ("iwlwifi: split the drivers for agn and legacy devices 3945/4965")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit b61156fba74f659d0bc2de8f2dbf5bad9f4b8faf ]
Clang warns:
../drivers/net/wireless/intersil/hostap/hostap_ap.c:2511:3: warning:
misleading indentation; statement is not part of the previous 'if'
[-Wmisleading-indentation]
if (sta->tx_supp_rates & WLAN_RATE_5M5)
^
../drivers/net/wireless/intersil/hostap/hostap_ap.c:2509:2: note:
previous statement is here
if (sta->tx_supp_rates & WLAN_RATE_2M)
^
1 warning generated.
This warning occurs because there is a space before the tab on this
line. Remove it so that the indentation is consistent with the Linux
kernel coding style and clang no longer warns.
Fixes: ff1d2767d5a4 ("Add HostAP wireless driver.")
Link: https://github.com/ClangBuiltLinux/linux/issues/813
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 76950f7162cad51d2200ebd22c620c14af38f718 ]
To perform the reserve_crashkernel() operation kexec uses SECTION_SIZE to
find a memblock in a range.
SECTION_SIZE is not defined for nommu systems. Trying to compile kexec in
these conditions results in a build error:
linux/arch/arm/kernel/setup.c: In function ‘reserve_crashkernel’:
linux/arch/arm/kernel/setup.c:1016:25: error: ‘SECTION_SIZE’ undeclared
(first use in this function); did you mean ‘SECTIONS_WIDTH’?
crash_size, SECTION_SIZE);
^~~~~~~~~~~~
SECTIONS_WIDTH
linux/arch/arm/kernel/setup.c:1016:25: note: each undeclared identifier
is reported only once for each function it appears in
linux/scripts/Makefile.build:265: recipe for target 'arch/arm/kernel/setup.o'
failed
Make KEXEC depend on MMU to fix the compilation issue.
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit d0a186e0d3e7ac05cc77da7c157dae5aa59f95d9 ]
We invoke jbd2_journal_abort() to abort the journal and record errno
in the jbd2 superblock when committing journal transaction besides the
failure on submitting the commit record. But there is no need for the
case and we can also invoke jbd2_journal_abort() instead of
__jbd2_journal_abort_hard().
Fixes: 818d276ceb83a ("ext4: Add the journal checksum feature")
Signed-off-by: zhangyi (F) <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20191204124614.45424-2-yi.zhang@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit ef7d84caa5928b40b1c93a26dbe5a3f12737c6ab ]
Lenovo Thinkpad T420s uses the same codec as T420, so apply the
same quirk to enable audio output on a docking station.
Signed-off-by: Peter Große <pegro@friiks.de>
Link: https://lore.kernel.org/r/20200122180106.9351-1-pegro@friiks.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 45f7a0da600d3c409b5ad8d5ddddacd98ddc8840 ]
Currently backtrace from ftraced function does not contain ftraced
function itself. e.g. for "path_openat":
arch_stack_walk+0x15c/0x2d8
stack_trace_save+0x50/0x68
stack_trace_call+0x15e/0x3d8
ftrace_graph_caller+0x0/0x1c <-- ftrace code
do_filp_open+0x7c/0xe8 <-- ftraced function caller
do_open_execat+0x76/0x1b8
open_exec+0x52/0x78
load_elf_binary+0x180/0x1160
search_binary_handler+0x8e/0x288
load_script+0x2a8/0x2b8
search_binary_handler+0x8e/0x288
__do_execve_file.isra.39+0x6fa/0xb40
__s390x_sys_execve+0x56/0x68
system_call+0xdc/0x2d8
Ftraced function is expected in the backtrace by ftrace kselftests, which
are now failing. It would also be nice to have it for clarity reasons.
"ftrace_caller" itself is called without stack frame allocated for it
and does not store its caller (ftraced function). Instead it simply
allocates a stack frame for "ftrace_trace_function" and sets backchain
to point to ftraced function stack frame (which contains ftraced function
caller in saved r14).
To fix this issue make "ftrace_caller" allocate a stack frame
for itself just to store ftraced function for the stack unwinder.
As a result backtrace looks like the following:
arch_stack_walk+0x15c/0x2d8
stack_trace_save+0x50/0x68
stack_trace_call+0x15e/0x3d8
ftrace_graph_caller+0x0/0x1c <-- ftrace code
path_openat+0x6/0xd60 <-- ftraced function
do_filp_open+0x7c/0xe8 <-- ftraced function caller
do_open_execat+0x76/0x1b8
open_exec+0x52/0x78
load_elf_binary+0x180/0x1160
search_binary_handler+0x8e/0x288
load_script+0x2a8/0x2b8
search_binary_handler+0x8e/0x288
__do_execve_file.isra.39+0x6fa/0xb40
__s390x_sys_execve+0x56/0x68
system_call+0xdc/0x2d8
Reported-by: Sven Schnelle <sven.schnelle@ibm.com>
Tested-by: Sven Schnelle <sven.schnelle@ibm.com>
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit a8f40111d184098cd2b3dc0c7170c42250a5fa09 ]
The remoteproc_core and remoteproc drivers all initialize with module_init().
However remoteproc drivers need the rproc_class during their probe. If one of
the remoteproc drivers runs init and gets through probe before
remoteproc_init() runs, a NULL pointer access of rproc_class's `glue_dirs`
spinlock occurs.
> Unable to handle kernel NULL pointer dereference at virtual address 000000dc
> pgd = c0004000
> [000000dc] *pgd=00000000
> Internal error: Oops: 5 [#1] PREEMPT ARM
> Modules linked in:
> CPU: 0 PID: 1 Comm: swapper Tainted: G W 4.14.106-rt56 #1
> Hardware name: Generic OMAP36xx (Flattened Device Tree)
> task: c6050000 task.stack: c604a000
> PC is at rt_spin_lock+0x40/0x6c
> LR is at rt_spin_lock+0x28/0x6c
> pc : [<c0523c90>] lr : [<c0523c78>] psr: 60000013
> sp : c604bdc0 ip : 00000000 fp : 00000000
> r10: 00000000 r9 : c61c7c10 r8 : c6269c20
> r7 : c0905888 r6 : c6269c20 r5 : 00000000 r4 : 000000d4
> r3 : 000000dc r2 : c6050000 r1 : 00000002 r0 : 000000d4
> Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
...
> [<c0523c90>] (rt_spin_lock) from [<c03b65a4>] (get_device_parent+0x54/0x17c)
> [<c03b65a4>] (get_device_parent) from [<c03b6bec>] (device_add+0xe0/0x5b4)
> [<c03b6bec>] (device_add) from [<c042adf4>] (rproc_add+0x18/0xd8)
> [<c042adf4>] (rproc_add) from [<c01110e4>] (my_rproc_probe+0x158/0x204)
> [<c01110e4>] (my_rproc_probe) from [<c03bb6b8>] (platform_drv_probe+0x34/0x70)
> [<c03bb6b8>] (platform_drv_probe) from [<c03b9dd4>] (driver_probe_device+0x2c8/0x420)
> [<c03b9dd4>] (driver_probe_device) from [<c03ba02c>] (__driver_attach+0x100/0x11c)
> [<c03ba02c>] (__driver_attach) from [<c03b7d08>] (bus_for_each_dev+0x7c/0xc0)
> [<c03b7d08>] (bus_for_each_dev) from [<c03b910c>] (bus_add_driver+0x1cc/0x264)
> [<c03b910c>] (bus_add_driver) from [<c03ba714>] (driver_register+0x78/0xf8)
> [<c03ba714>] (driver_register) from [<c010181c>] (do_one_initcall+0x100/0x190)
> [<c010181c>] (do_one_initcall) from [<c0800de8>] (kernel_init_freeable+0x130/0x1d0)
> [<c0800de8>] (kernel_init_freeable) from [<c051eee8>] (kernel_init+0x8/0x114)
> [<c051eee8>] (kernel_init) from [<c01175b0>] (ret_from_fork+0x14/0x24)
> Code: e2843008 e3c2203f f5d3f000 e5922010 (e193cf9f)
> ---[ end trace 0000000000000002 ]---
Signed-off-by: Brandon Maier <brandon.maier@rockwellcollins.com>
Link: https://lore.kernel.org/r/20190530225223.136420-1-brandon.maier@rockwellcollins.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit ce1f31b4c0b9551dd51874dd5364654ed4ca13ae ]
The "drive->dn" variable is a u8 controlled by root.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 117fcc3053606d8db5cef8821dca15022ae578bb ]
The "drive->dn" value is a u8 and it is controlled by root only, but
it could be out of bounds here so let's check.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 54155ed4199c7aa3fd20866648024ab63c96d579 ]
A faulty userspace that calls destroy_session() before destroying the
connections can trigger the failure. This patch prevents the issue by
refusing to destroy the session if there are outstanding connections.
------------[ cut here ]------------
kernel BUG at mm/slub.c:306!
invalid opcode: 0000 [#1] SMP PTI
CPU: 1 PID: 1224 Comm: iscsid Not tainted 5.4.0-rc2.iscsi+ #7
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:__slab_free+0x181/0x350
[...]
[ 1209.686056] RSP: 0018:ffffa93d4074fae0 EFLAGS: 00010246
[ 1209.686694] RAX: ffff934efa5ad800 RBX: 000000008010000a RCX: ffff934efa5ad800
[ 1209.687651] RDX: ffff934efa5ad800 RSI: ffffeb4041e96b00 RDI: ffff934efd402c40
[ 1209.688582] RBP: ffffa93d4074fb80 R08: 0000000000000001 R09: ffffffffbb5dfa26
[ 1209.689425] R10: ffff934efa5ad800 R11: 0000000000000001 R12: ffffeb4041e96b00
[ 1209.690285] R13: ffff934efa5ad800 R14: ffff934efd402c40 R15: 0000000000000000
[ 1209.691213] FS: 00007f7945dfb540(0000) GS:ffff934efda80000(0000) knlGS:0000000000000000
[ 1209.692316] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1209.693013] CR2: 000055877fd3da80 CR3: 0000000077384000 CR4: 00000000000006e0
[ 1209.693897] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1209.694773] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1209.695631] Call Trace:
[ 1209.695957] ? __wake_up_common_lock+0x8a/0xc0
[ 1209.696712] iscsi_pool_free+0x26/0x40
[ 1209.697263] iscsi_session_teardown+0x2f/0xf0
[ 1209.698117] iscsi_sw_tcp_session_destroy+0x45/0x60
[ 1209.698831] iscsi_if_rx+0xd88/0x14e0
[ 1209.699370] netlink_unicast+0x16f/0x200
[ 1209.699932] netlink_sendmsg+0x21a/0x3e0
[ 1209.700446] sock_sendmsg+0x4f/0x60
[ 1209.700902] ___sys_sendmsg+0x2ae/0x320
[ 1209.701451] ? cp_new_stat+0x150/0x180
[ 1209.701922] __sys_sendmsg+0x59/0xa0
[ 1209.702357] do_syscall_64+0x52/0x160
[ 1209.702812] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 1209.703419] RIP: 0033:0x7f7946433914
[...]
[ 1209.706084] RSP: 002b:00007fffb99f2378 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 1209.706994] RAX: ffffffffffffffda RBX: 000055bc869eac20 RCX: 00007f7946433914
[ 1209.708082] RDX: 0000000000000000 RSI: 00007fffb99f2390 RDI: 0000000000000005
[ 1209.709120] RBP: 00007fffb99f2390 R08: 000055bc84fe9320 R09: 00007fffb99f1f07
[ 1209.710110] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000038
[ 1209.711085] R13: 000055bc8502306e R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace a2d933ede7f730d8 ]---
Link: https://lore.kernel.org/r/20191226203148.2172200-1-krisman@collabora.com
Signed-off-by: Nick Black <nlb@google.com>
Co-developed-by: Salman Qazi <sqazi@google.com>
Signed-off-by: Salman Qazi <sqazi@google.com>
Co-developed-by: Junho Ryu <jayr@google.com>
Signed-off-by: Junho Ryu <jayr@google.com>
Co-developed-by: Khazhismel Kumykov <khazhy@google.com>
Signed-off-by: Khazhismel Kumykov <khazhy@google.com>
Co-developed-by: Gabriel Krisman Bertazi <krisman@collabora.com>
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
|
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[ Upstream commit d71e01716b3606a6648df7e5646ae12c75babde4 ]
If, for some bizarre reason, the compiler decided to split up the write
of STE DWORD 0, we could end up making a partial structure valid.
Although this probably won't happen, follow the example of the
context-descriptor code and use WRITE_ONCE() to ensure atomicity of the
write.
Reported-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 40efb09a7f53125719e49864da008495e39aaa1e ]
In vmw_cmdbuf_res_add if drm_ht_insert_item fails the allocated memory
for cres should be released.
Fixes: 18e4a4669c50 ("drm/vmwgfx: Fix compat shader namespace")
Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 1eb013473bff5f95b6fe1ca4dd7deda47257b9c2 ]
Like other cases, it should use rcu protected 'chan' rather
than 'fence->channel' in nouveau_fence_wait_uevent_handler.
Fixes: 0ec5f02f0e2c ("drm/nouveau: prevent stale fence->channel pointers, and protect with rcu")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 7c35e699c88bd60734277b26962783c60e04b494 ]
If a device already has devres items attached before probing, a warning
backtrace is printed. However, this backtrace does not reveal the
offending device, leaving the user uninformed. Furthermore, using
WARN_ON() causes systems with panic-on-warn to reboot.
Fix this by replacing the WARN_ON() by a dev_crit() message.
Abort probing the device, to prevent doing more damage to the device's
resources.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20191206132219.28908-1-geert+renesas@glider.be
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 9db8dc6d0785225c42a37be7b44d1b07b31b8957 ]
Some PCI bridges implement BARs in addition to bridge windows. For
example, here's a PLX switch:
04:00.0 PCI bridge: PLX Technology, Inc. PEX 8724 24-Lane, 6-Port PCI
Express Gen 3 (8 GT/s) Switch, 19 x 19mm FCBGA (rev ca)
(prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0, IRQ 30, NUMA node 0
Memory at 90a00000 (32-bit, non-prefetchable) [size=256K]
Bus: primary=04, secondary=05, subordinate=0a, sec-latency=0
I/O behind bridge: 00002000-00003fff
Memory behind bridge: 90000000-909fffff
Prefetchable memory behind bridge: 0000380000800000-0000380000bfffff
Previously, when the kernel assigned resource addresses (with the
pci=realloc command line parameter, for example) it could clear the struct
resource corresponding to the BAR. When this happened, lspci would report
this BAR as "ignored":
Region 0: Memory at <ignored> (32-bit, non-prefetchable) [size=256K]
This is because the kernel reports a zero start address and zero flags
in the corresponding sysfs resource file and in /proc/bus/pci/devices.
Investigation with 'lspci -x', however, shows the BIOS-assigned address
will still be programmed in the device's BAR registers.
It's clearly a bug that the kernel lost track of the BAR value, but in most
cases, this still won't result in a visible issue because nothing uses the
memory, so nothing is affected. However, when an IOMMU is in use, it will
not reserve this space in the IOVA because the kernel no longer thinks the
range is valid. (See dmar_init_reserved_ranges() for the Intel
implementation of this.)
Without the proper reserved range, a DMA mapping may allocate an IOVA that
matches a bridge BAR, which results in DMA accesses going to the BAR
instead of the intended RAM.
The problem was in pci_assign_unassigned_root_bus_resources(). When any
resource from a bridge device fails to get assigned, the code set the
resource's flags to zero. This makes sense for bridge windows, as they
will be re-enabled later, but for regular BARs, it makes the kernel
permanently lose track of the fact that they decode address space.
Change pci_assign_unassigned_root_bus_resources() and
pci_assign_unassigned_bridge_resources() so they only clear "res->flags"
for bridge *windows*, not bridge BARs.
Fixes: da7822e5ad71 ("PCI: update bridge resources to get more big ranges when allocating space (again)")
Link: https://lore.kernel.org/r/20200108213208.4612-1-logang@deltatee.com
[bhelgaas: commit log, check for pci_is_bridge()]
Reported-by: Kit Chow <kchow@gigaio.com>
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 8fea78029f5e6ed734ae1957bef23cfda1af4354 ]
If CONFIG_SND_ATMEL_SOC_DMA=m, build error:
sound/soc/atmel/atmel_ssc_dai.o: In function `atmel_ssc_set_audio':
(.text+0x7cd): undefined reference to `atmel_pcm_dma_platform_register'
Function atmel_pcm_dma_platform_register is defined under
CONFIG SND_ATMEL_SOC_DMA, so select SND_ATMEL_SOC_DMA in
CONFIG SND_ATMEL_SOC_SSC, same to CONFIG_SND_ATMEL_SOC_PDC.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
Link: https://lore.kernel.org/r/20200113133242.144550-1-chenzhou10@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 504c28c853ec5c626900b914b5833daf0581a344 ]
Change the driver to use portable integer types to avoid
warnings during compile testing:
drivers/net/wan/ixp4xx_hss.c:863:21: error: cast to 'u32 *' (aka 'unsigned int *') from smaller integer type 'int' [-Werror,-Wint-to-pointer-cast]
memcpy_swab32(mem, (u32 *)((int)skb->data & ~3), bytes / 4);
^
drivers/net/wan/ixp4xx_hss.c:979:12: error: incompatible pointer types passing 'u32 *' (aka 'unsigned int *') to parameter of type 'dma_addr_t *' (aka 'unsigned long long *') [-Werror,-Wincompatible-pointer-types]
&port->desc_tab_phys)))
^~~~~~~~~~~~~~~~~~~~
include/linux/dmapool.h:27:20: note: passing argument to parameter 'handle' here
dma_addr_t *handle);
^
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit e112324cc0422c046f1cf54c56f333d34fa20885 ]
The EP0700MLP1 returns bogus data on the first register read access
(reading the threshold parameter from register 0x00):
edt_ft5x06 2-0038: crc error: 0xfc expected, got 0x40
It ignores writes until then. This patch adds a dummy read after which
the number of sensors and parameter read/writes work correctly.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 860c8802ace14c646864795e057349c9fb2d60ad ]
Eric Dumazet supplied a KCSAN report of a bug that forces use
of hlist_unhashed_lockless() from sk_unhashed():
------------------------------------------------------------------------
BUG: KCSAN: data-race in inet_unhash / inet_unhash
write to 0xffff8880a69a0170 of 8 bytes by interrupt on cpu 1:
__hlist_nulls_del include/linux/list_nulls.h:88 [inline]
hlist_nulls_del_init_rcu include/linux/rculist_nulls.h:36 [inline]
__sk_nulls_del_node_init_rcu include/net/sock.h:676 [inline]
inet_unhash+0x38f/0x4a0 net/ipv4/inet_hashtables.c:612
tcp_set_state+0xfa/0x3e0 net/ipv4/tcp.c:2249
tcp_done+0x93/0x1e0 net/ipv4/tcp.c:3854
tcp_write_err+0x7e/0xc0 net/ipv4/tcp_timer.c:56
tcp_retransmit_timer+0x9b8/0x16d0 net/ipv4/tcp_timer.c:479
tcp_write_timer_handler+0x42d/0x510 net/ipv4/tcp_timer.c:599
tcp_write_timer+0xd1/0xf0 net/ipv4/tcp_timer.c:619
call_timer_fn+0x5f/0x2f0 kernel/time/timer.c:1404
expire_timers kernel/time/timer.c:1449 [inline]
__run_timers kernel/time/timer.c:1773 [inline]
__run_timers kernel/time/timer.c:1740 [inline]
run_timer_softirq+0xc0c/0xcd0 kernel/time/timer.c:1786
__do_softirq+0x115/0x33f kernel/softirq.c:292
invoke_softirq kernel/softirq.c:373 [inline]
irq_exit+0xbb/0xe0 kernel/softirq.c:413
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0xe6/0x280 arch/x86/kernel/apic/apic.c:1137
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830
native_safe_halt+0xe/0x10 arch/x86/kernel/paravirt.c:71
arch_cpu_idle+0x1f/0x30 arch/x86/kernel/process.c:571
default_idle_call+0x1e/0x40 kernel/sched/idle.c:94
cpuidle_idle_call kernel/sched/idle.c:154 [inline]
do_idle+0x1af/0x280 kernel/sched/idle.c:263
cpu_startup_entry+0x1b/0x20 kernel/sched/idle.c:355
start_secondary+0x208/0x260 arch/x86/kernel/smpboot.c:264
secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:241
read to 0xffff8880a69a0170 of 8 bytes by interrupt on cpu 0:
sk_unhashed include/net/sock.h:607 [inline]
inet_unhash+0x3d/0x4a0 net/ipv4/inet_hashtables.c:592
tcp_set_state+0xfa/0x3e0 net/ipv4/tcp.c:2249
tcp_done+0x93/0x1e0 net/ipv4/tcp.c:3854
tcp_write_err+0x7e/0xc0 net/ipv4/tcp_timer.c:56
tcp_retransmit_timer+0x9b8/0x16d0 net/ipv4/tcp_timer.c:479
tcp_write_timer_handler+0x42d/0x510 net/ipv4/tcp_timer.c:599
tcp_write_timer+0xd1/0xf0 net/ipv4/tcp_timer.c:619
call_timer_fn+0x5f/0x2f0 kernel/time/timer.c:1404
expire_timers kernel/time/timer.c:1449 [inline]
__run_timers kernel/time/timer.c:1773 [inline]
__run_timers kernel/time/timer.c:1740 [inline]
run_timer_softirq+0xc0c/0xcd0 kernel/time/timer.c:1786
__do_softirq+0x115/0x33f kernel/softirq.c:292
invoke_softirq kernel/softirq.c:373 [inline]
irq_exit+0xbb/0xe0 kernel/softirq.c:413
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0xe6/0x280 arch/x86/kernel/apic/apic.c:1137
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:830
native_safe_halt+0xe/0x10 arch/x86/kernel/paravirt.c:71
arch_cpu_idle+0x1f/0x30 arch/x86/kernel/process.c:571
default_idle_call+0x1e/0x40 kernel/sched/idle.c:94
cpuidle_idle_call kernel/sched/idle.c:154 [inline]
do_idle+0x1af/0x280 kernel/sched/idle.c:263
cpu_startup_entry+0x1b/0x20 kernel/sched/idle.c:355
rest_init+0xec/0xf6 init/main.c:452
arch_call_rest_init+0x17/0x37
start_kernel+0x838/0x85e init/main.c:786
x86_64_start_reservations+0x29/0x2b arch/x86/kernel/head64.c:490
x86_64_start_kernel+0x72/0x76 arch/x86/kernel/head64.c:471
secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:241
Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.4.0-rc6+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine,
BIOS Google 01/01/2011
------------------------------------------------------------------------
This commit therefore replaces C-language assignments with WRITE_ONCE()
in include/linux/list_nulls.h and include/linux/rculist_nulls.h.
Reported-by: Eric Dumazet <edumazet@google.com> # For KCSAN
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
|
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[ Upstream commit 2d9ea1934f8ef0dfb862d103389562cc28b4fc03 ]
Trying to read out Chip ID before APBMISC registers are mapped won't
succeed, in a result Tegra124 gets a wrong address for the HW straps
register if machine uses an old outdated device tree.
Fixes: 297c4f3dcbff ("soc/tegra: fuse: Restrict legacy code to 32-bit ARM")
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 585c91f40d201bc564d4e76b83c05b3b5363fe7e ]
Fix unsafe unaligned pointer usage in usbip network interfaces. usbip tool
build fails with new gcc -Werror=address-of-packed-member checks.
usbip_network.c: In function ‘usbip_net_pack_usb_device’:
usbip_network.c:79:32: error: taking address of packed member of ‘struct usbip_usb_device’ may result in an unaligned pointer value [-Werror=address-of-packed-member]
79 | usbip_net_pack_uint32_t(pack, &udev->busnum);
Fix with minor changes to pass by value instead of by address.
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20200109012416.2875-1-skhan@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 6794200fa3c9c3e6759dae099145f23e4310f4f7 ]
GCC9 introduced string hardening mechanisms, which exhibits the error
during fs api compilation:
error: '__builtin_strncpy' specified bound 4096 equals destination size
[-Werror=stringop-truncation]
This comes when the length of copy passed to strncpy is is equal to
destination size, which could potentially lead to buffer overflow.
There is a need to mitigate this potential issue by limiting the size of
destination by 1 and explicitly terminate the destination with NULL.
Signed-off-by: Andrey Zhizhikin <andrey.zhizhikin@leica-geosystems.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andrii Nakryiko <andriin@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Yonghong Song <yhs@fb.com>
Cc: bpf@vger.kernel.org
Cc: netdev@vger.kernel.org
Link: http://lore.kernel.org/lkml/20191211080109.18765-1-andrey.zhizhikin@leica-geosystems.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit f1dd4795b1523fbca7ab4344dd5a8bb439cc770d ]
A long-standing compile warning was seen during build test:
sound/sh/aica.c: In function 'load_aica_firmware':
sound/sh/aica.c:521:25: warning: passing argument 2 of 'spu_memload' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
Fixes: 198de43d758c ("[ALSA] Add ALSA support for the SEGA Dreamcast PCM device")
Link: https://lore.kernel.org/r/20200105144823.29547-69-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 02aeb2f21530c98fc3ca51028eda742a3fafbd9f ]
pinmux_func_gpios[] contains a hole due to the missing function GPIO
definition for the "CTX0&CTX1" signal, which is the logical "AND" of the
first two CAN outputs.
A closer look reveals other issues:
- Some functionality is available on alternative pins, but the
PINMUX_DATA() entries is using the wrong marks,
- Several configurations are missing.
Fix this by:
- Renaming CTX0CTX1CTX2_MARK, CRX0CRX1_PJ22_MARK, and
CRX0CRX1CRX2_PJ20_MARK to CTX0_CTX1_CTX2_MARK, CRX0_CRX1_PJ22_MARK,
resp. CRX0_CRX1_CRX2_PJ20_MARK for consistency with the
corresponding enum IDs,
- Adding all missing enum IDs and marks,
- Use the right (*_PJ2x) variants for alternative pins,
- Adding all missing configurations to pinmux_data[],
- Adding all missing function GPIO definitions to pinmux_func_gpios[].
See SH7268 Group, SH7269 Group User’s Manual: Hardware, Rev. 2.00:
[1] Table 1.4 List of Pins
[2] Figure 23.29 Connection Example when Using Channels 0 and 1 as One
Channel (64 Mailboxes × 1 Channel) and Channel 2 as One Channel
(32 Mailboxes × 1 Channel),
[3] Figure 23.30 Connection Example when Using Channels 0, 1, and 2 as
One Channel (96 Mailboxes × 1 Channel),
[4] Table 48.3 Multiplexed Pins (Port B),
[5] Table 48.4 Multiplexed Pins (Port C),
[6] Table 48.10 Multiplexed Pins (Port J),
[7] Section 48.2.4 Port B Control Registers 0 to 5 (PBCR0 to PBCR5).
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20191218194812.12741-5-geert+renesas@glider.be
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit bff47c2302cc249bcd550b17067f8dddbd4b6f77 ]
When building with C=1, sparse issues a warning:
CHECK arch/x86/entry/vdso/vdso32-setup.c
arch/x86/entry/vdso/vdso32-setup.c:28:28: warning: symbol 'vdso32_enabled' was not declared. Should it be static?
Provide the missing header file.
Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/36224.1575599767@turing-police
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 8443ffd1bbd5be74e9b12db234746d12e8ea93e2 ]
Add a device node for the global timer, which is part of the Cortex-A9
MPCore.
The global timer can serve as an accurate (4 ns) clock source for
scheduling and delay loops.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20191211135222.26770-4-geert+renesas@glider.be
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit 4dbc96ad65c45cdd4e895ed7ae4c151b780790c5 ]
Clang warns:
../drivers/scsi/aic7xxx/aic7xxx_core.c:2317:5: warning: misleading
indentation; statement is not part of the previous 'if'
[-Wmisleading-indentation]
if ((syncrate->sxfr_u2 & ST_SXFR) != 0)
^
../drivers/scsi/aic7xxx/aic7xxx_core.c:2310:4: note: previous statement
is here
if (syncrate == &ahc_syncrates[maxsync])
^
1 warning generated.
This warning occurs because there is a space amongst the tabs on this
line. Remove it so that the indentation is consistent with the Linux kernel
coding style and clang no longer warns.
This has been a problem since the beginning of git history hence no fixes
tag.
Link: https://github.com/ClangBuiltLinux/linux/issues/817
Link: https://lore.kernel.org/r/20191218014220.52746-1-natechancellor@gmail.com
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>
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[ Upstream commit 5ddbd77181dfca61b16d2e2222382ea65637f1b9 ]
ACPICA commit 29cc8dbc5463a93625bed87d7550a8bed8913bf4
create_buffer_field is a deferred op that is typically processed in
load pass 2. However, disassembly of control method contents walk the
parse tree with ACPI_PARSE_LOAD_PASS1 and AML_CREATE operators are
processed in a later walk. This is a problem when there is a control
method that has the same name as the AML_CREATE object. In this case,
any use of the name segment will be detected as a method call rather
than a reference to a buffer field. If this is detected as a method
call, it can result in a mal-formed parse tree if the control methods
have parameters.
This change in processing AML_CREATE ops earlier solves this issue by
inserting the named object in the ACPI namespace so that references
to this name would be detected as a name string rather than a method
call.
Link: https://github.com/acpica/acpica/commit/29cc8dbc
Reported-by: Elia Geretto <elia.f.geretto@gmail.com>
Tested-by: Elia Geretto <elia.f.geretto@gmail.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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[ Upstream commit c705f9fc6a1736dcf6ec01f8206707c108dca824 ]
In ezusb_init, if upriv is NULL, the code crashes. However, the caller
in ezusb_probe can handle the error and print the failure message.
The patch replaces the BUG_ON call to error return.
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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