Commit Graph

827172 Commits

Author SHA1 Message Date
Gerd Hoffmann
ab042b824c Revert "drm/qxl: drop prime import/export callbacks"
This reverts commit f4c34b1e2a.

Simliar to commit a0cecc23cf Revert "drm/virtio: drop prime
import/export callbacks".  We have to do the same with qxl,
for the same reasons (it breaks DRI3).

Drop the WARN_ON_ONCE().

Fixes: f4c34b1e2a ("drm/qxl: drop prime import/export callbacks")
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20190426053324.26443-1-kraxel@redhat.com
Acked-by: Daniel Vetter <daniel@ffwll.ch>
2019-04-30 14:08:48 +02:00
Tobin C. Harding
9a4f26cc98 sched/cpufreq: Fix kobject memleak
Currently the error return path from kobject_init_and_add() is not
followed by a call to kobject_put() - which means we are leaking
the kobject.

Fix it by adding a call to kobject_put() in the error path of
kobject_init_and_add().

Signed-off-by: Tobin C. Harding <tobin@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tobin C. Harding <tobin@kernel.org>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Link: http://lkml.kernel.org/r/20190430001144.24890-1-tobin@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-04-30 07:57:23 +02:00
Eric Dumazet
6c0afef5fb ipv6/flowlabel: wait rcu grace period before put_pid()
syzbot was able to catch a use-after-free read in pid_nr_ns() [1]

ip6fl_seq_show() seems to use RCU protection, dereferencing fl->owner.pid
but fl_free() releases fl->owner.pid before rcu grace period is started.

[1]

BUG: KASAN: use-after-free in pid_nr_ns+0x128/0x140 kernel/pid.c:407
Read of size 4 at addr ffff888094012a04 by task syz-executor.0/18087

CPU: 0 PID: 18087 Comm: syz-executor.0 Not tainted 5.1.0-rc6+ #89
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x172/0x1f0 lib/dump_stack.c:113
 print_address_description.cold+0x7c/0x20d mm/kasan/report.c:187
 kasan_report.cold+0x1b/0x40 mm/kasan/report.c:317
 __asan_report_load4_noabort+0x14/0x20 mm/kasan/generic_report.c:131
 pid_nr_ns+0x128/0x140 kernel/pid.c:407
 ip6fl_seq_show+0x2f8/0x4f0 net/ipv6/ip6_flowlabel.c:794
 seq_read+0xad3/0x1130 fs/seq_file.c:268
 proc_reg_read+0x1fe/0x2c0 fs/proc/inode.c:227
 do_loop_readv_writev fs/read_write.c:701 [inline]
 do_loop_readv_writev fs/read_write.c:688 [inline]
 do_iter_read+0x4a9/0x660 fs/read_write.c:922
 vfs_readv+0xf0/0x160 fs/read_write.c:984
 kernel_readv fs/splice.c:358 [inline]
 default_file_splice_read+0x475/0x890 fs/splice.c:413
 do_splice_to+0x12a/0x190 fs/splice.c:876
 splice_direct_to_actor+0x2d2/0x970 fs/splice.c:953
 do_splice_direct+0x1da/0x2a0 fs/splice.c:1062
 do_sendfile+0x597/0xd00 fs/read_write.c:1443
 __do_sys_sendfile64 fs/read_write.c:1498 [inline]
 __se_sys_sendfile64 fs/read_write.c:1490 [inline]
 __x64_sys_sendfile64+0x15a/0x220 fs/read_write.c:1490
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x458da9
Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f300d24bc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000458da9
RDX: 00000000200000c0 RSI: 0000000000000008 RDI: 0000000000000007
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000005a R11: 0000000000000246 R12: 00007f300d24c6d4
R13: 00000000004c5fa3 R14: 00000000004da748 R15: 00000000ffffffff

Allocated by task 17543:
 save_stack+0x45/0xd0 mm/kasan/common.c:75
 set_track mm/kasan/common.c:87 [inline]
 __kasan_kmalloc mm/kasan/common.c:497 [inline]
 __kasan_kmalloc.constprop.0+0xcf/0xe0 mm/kasan/common.c:470
 kasan_slab_alloc+0xf/0x20 mm/kasan/common.c:505
 slab_post_alloc_hook mm/slab.h:437 [inline]
 slab_alloc mm/slab.c:3393 [inline]
 kmem_cache_alloc+0x11a/0x6f0 mm/slab.c:3555
 alloc_pid+0x55/0x8f0 kernel/pid.c:168
 copy_process.part.0+0x3b08/0x7980 kernel/fork.c:1932
 copy_process kernel/fork.c:1709 [inline]
 _do_fork+0x257/0xfd0 kernel/fork.c:2226
 __do_sys_clone kernel/fork.c:2333 [inline]
 __se_sys_clone kernel/fork.c:2327 [inline]
 __x64_sys_clone+0xbf/0x150 kernel/fork.c:2327
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Freed by task 7789:
 save_stack+0x45/0xd0 mm/kasan/common.c:75
 set_track mm/kasan/common.c:87 [inline]
 __kasan_slab_free+0x102/0x150 mm/kasan/common.c:459
 kasan_slab_free+0xe/0x10 mm/kasan/common.c:467
 __cache_free mm/slab.c:3499 [inline]
 kmem_cache_free+0x86/0x260 mm/slab.c:3765
 put_pid.part.0+0x111/0x150 kernel/pid.c:111
 put_pid+0x20/0x30 kernel/pid.c:105
 fl_free+0xbe/0xe0 net/ipv6/ip6_flowlabel.c:102
 ip6_fl_gc+0x295/0x3e0 net/ipv6/ip6_flowlabel.c:152
 call_timer_fn+0x190/0x720 kernel/time/timer.c:1325
 expire_timers kernel/time/timer.c:1362 [inline]
 __run_timers kernel/time/timer.c:1681 [inline]
 __run_timers kernel/time/timer.c:1649 [inline]
 run_timer_softirq+0x652/0x1700 kernel/time/timer.c:1694
 __do_softirq+0x266/0x95a kernel/softirq.c:293

The buggy address belongs to the object at ffff888094012a00
 which belongs to the cache pid_2 of size 88
The buggy address is located 4 bytes inside of
 88-byte region [ffff888094012a00, ffff888094012a58)
The buggy address belongs to the page:
page:ffffea0002500480 count:1 mapcount:0 mapping:ffff88809a483080 index:0xffff888094012980
flags: 0x1fffc0000000200(slab)
raw: 01fffc0000000200 ffffea00018a3508 ffffea0002524a88 ffff88809a483080
raw: ffff888094012980 ffff888094012000 000000010000001b 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff888094012900: fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc
 ffff888094012980: fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc
>ffff888094012a00: fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc
                   ^
 ffff888094012a80: fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc
 ffff888094012b00: fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc

Fixes: 4f82f45730 ("net ip6 flowlabel: Make owner a union of struct pid * and kuid_t")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-29 23:30:13 -04:00
Stephen Suryaputra
1d3fd8a10b vrf: Use orig netdev to count Ip6InNoRoutes and a fresh route lookup when sending dest unreach
When there is no route to an IPv6 dest addr, skb_dst(skb) points
to loopback dev in the case of that the IP6CB(skb)->iif is
enslaved to a vrf. This causes Ip6InNoRoutes to be incremented on the
loopback dev. This also causes the lookup to fail on icmpv6_send() and
the dest unreachable to not sent and Ip6OutNoRoutes gets incremented on
the loopback dev.

To reproduce:
* Gateway configuration:
        ip link add dev vrf_258 type vrf table 258
        ip link set dev enp0s9 master vrf_258
        ip addr add 66:1/64 dev enp0s9
        ip -6 route add unreachable default metric 8192 table 258
        sysctl -w net.ipv6.conf.all.forwarding=1
        sysctl -w net.ipv6.conf.enp0s9.forwarding=1
* Sender configuration:
        ip addr add 66::2/64 dev enp0s9
        ip -6 route add default via 66::1
and ping 67::1 for example from the sender.

Fix this by counting on the original netdev and reset the skb dst to
force a fresh lookup.

v2: Fix typo of destination address in the repro steps.
v3: Simplify the loopback check (per David Ahern) and use reverse
    Christmas tree format (per David Miller).

Signed-off-by: Stephen Suryaputra <ssuryaextr@gmail.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Tested-by: David Ahern <dsahern@gmail.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-29 23:28:52 -04:00
Eric Dumazet
ca2fe2956a tcp: add sanity tests in tcp_add_backlog()
Richard and Bruno both reported that my commit added a bug,
and Bruno was able to determine the problem came when a segment
wih a FIN packet was coalesced to a prior one in tcp backlog queue.

It turns out the header prediction in tcp_rcv_established()
looks back to TCP headers in the packet, not in the metadata
(aka TCP_SKB_CB(skb)->tcp_flags)

The fast path in tcp_rcv_established() is not supposed to
handle a FIN flag (it does not call tcp_fin())

Therefore we need to make sure to propagate the FIN flag,
so that the coalesced packet does not go through the fast path,
the same than a GRO packet carrying a FIN flag.

While we are at it, make sure we do not coalesce packets with
RST or SYN, or if they do not have ACK set.

Many thanks to Richard and Bruno for pinpointing the bad commit,
and to Richard for providing a first version of the fix.

Fixes: 4f693b55c3 ("tcp: implement coalescing on backlog queue")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Reported-by: Bruno Prémont <bonbons@sysophe.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-29 23:20:37 -04:00
Willem de Bruijn
95c169251b ipv6: invert flowlabel sharing check in process and user mode
A request for a flowlabel fails in process or user exclusive mode must
fail if the caller pid or uid does not match. Invert the test.

Previously, the test was unsafe wrt PID recycling, but indeed tested
for inequality: fl1->owner != fl->owner

Fixes: 4f82f45730 ("net ip6 flowlabel: Make owner a union of struct pid* and kuid_t")
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-29 18:22:56 -04:00
David S. Miller
6ee12b7b15 Merge branch 'ieee802154-for-davem-2019-04-25' of git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan
Stefan Schmidt says:

====================
ieee802154 for net 2019-04-25

An update from ieee802154 for your *net* tree.

Another fix from Kangjie Lu to ensure better checking regmap updates in the
mcr20a driver. Nothing else I have pending for the final release.

If there are any problems let me know.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-29 18:18:09 -04:00
Linus Torvalds
83a50840e7 seccomp use-after-free fix
- Add logic for making some seccomp flags exclusive (Tycho)
 - Update selftests for exclusivity testing (Kees)
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Merge tag 'seccomp-v5.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull seccomp fixes from Kees Cook:
 "Syzbot found a use-after-free bug in seccomp due to flags that should
  not be allowed to be used together.

  Tycho fixed this, I updated the self-tests, and the syzkaller PoC has
  been running for several days without triggering KASan (before this
  fix, it would reproduce). These patches have also been in -next for
  almost a week, just to be sure.

   - Add logic for making some seccomp flags exclusive (Tycho)

   - Update selftests for exclusivity testing (Kees)"

* tag 'seccomp-v5.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  seccomp: Make NEW_LISTENER and TSYNC flags exclusive
  selftests/seccomp: Prepare for exclusive seccomp flags
2019-04-29 13:24:34 -07:00
Linus Torvalds
80871482fd x86: make ZERO_PAGE() at least parse its argument
This doesn't really do anything, but at least we now parse teh
ZERO_PAGE() address argument so that we'll catch the most obvious errors
in usage next time they'll happen.

See commit 6a5c5d26c4 ("rdma: fix build errors on s390 and MIPS due to
bad ZERO_PAGE use") what happens when we don't have any use of the macro
argument at all.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-04-29 09:51:29 -07:00
Linus Torvalds
6a5c5d26c4 rdma: fix build errors on s390 and MIPS due to bad ZERO_PAGE use
The parameter to ZERO_PAGE() was wrong, but since all architectures
except for MIPS and s390 ignore it, it wasn't noticed until 0-day
reported the build error.

Fixes: 67f269b37f ("RDMA/ucontext: Fix regression with disassociate")
Cc: stable@vger.kernel.org
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Leon Romanovsky <leonro@mellanox.com>
Cc: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-04-29 09:48:53 -07:00
Kalle Valo
7a0f8ad5ff Merge ath-current from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git
ath.git fixes for 5.1. Major changes:

ath10k

* fix locking problem with crashdump

* fix warnings during suspend and resume
2019-04-29 19:33:33 +03:00
Paulo Alcantara
dfbd199a7c selinux: use kernel linux/socket.h for genheaders and mdp
When compiling genheaders and mdp from a newer host kernel, the
following error happens:

    In file included from scripts/selinux/genheaders/genheaders.c:18:
    ./security/selinux/include/classmap.h:238:2: error: #error New
    address family defined, please update secclass_map.  #error New
    address family defined, please update secclass_map.  ^~~~~
    make[3]: *** [scripts/Makefile.host:107:
    scripts/selinux/genheaders/genheaders] Error 1 make[2]: ***
    [scripts/Makefile.build:599: scripts/selinux/genheaders] Error 2
    make[1]: *** [scripts/Makefile.build:599: scripts/selinux] Error 2
    make[1]: *** Waiting for unfinished jobs....

Instead of relying on the host definition, include linux/socket.h in
classmap.h to have PF_MAX.

Cc: stable@vger.kernel.org
Signed-off-by: Paulo Alcantara <paulo@paulo.ac>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
[PM: manually merge in mdp.c, subject line tweaks]
Signed-off-by: Paul Moore <paul@paul-moore.com>
2019-04-29 11:34:58 -04:00
David S. Miller
2ae7a39770 * fix use-after-free in mac80211 TXQs
* fix RX STBC byte order
  * fix debugfs rename crashing due to ERR_PTR()
  * fix missing regulatory notification
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Merge tag 'mac80211-for-davem-2019-04-26' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
 * fix use-after-free in mac80211 TXQs
 * fix RX STBC byte order
 * fix debugfs rename crashing due to ERR_PTR()
 * fix missing regulatory notification
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-29 11:00:58 -04:00
Rafael J. Wysocki
9e80ad37f6 ath10k: Drop WARN_ON()s that always trigger during system resume
ath10k_mac_vif_chan() always returns an error for the given vif
during system-wide resume which reliably triggers two WARN_ON()s
in ath10k_bss_info_changed() and they are not particularly
useful in that code path, so drop them.

Tested: QCA6174 hw3.2 PCI with WLAN.RM.2.0-00180-QCARMSWPZ-1
Tested: QCA6174 hw3.2 SDIO with WLAN.RMH.4.4.1-00007-QCARMSWP-1

Fixes: cd93b83ad9 ("ath10k: support for multicast rate control")
Fixes: f279294e9e ("ath10k: add support for configuring management packet rate")
Cc: stable@vger.kernel.org
Reviewed-by: Brian Norris <briannorris@chromium.org>
Tested-by: Brian Norris <briannorris@chromium.org>
Tested-by: Claire Chang <tientzu@chromium.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-04-29 17:26:14 +03:00
Brian Norris
38faed1504 ath10k: perform crash dump collection in workqueue
Commit 25733c4e67 ("ath10k: pci: use mutex for diagnostic window CE
polling") introduced a regression where we try to sleep (grab a mutex)
in an atomic context:

[  233.602619] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:254
[  233.602626] in_atomic(): 1, irqs_disabled(): 0, pid: 0, name: swapper/0
[  233.602636] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G        W         5.1.0-rc2 #4
[  233.602642] Hardware name: Google Scarlet (DT)
[  233.602647] Call trace:
[  233.602663]  dump_backtrace+0x0/0x11c
[  233.602672]  show_stack+0x20/0x28
[  233.602681]  dump_stack+0x98/0xbc
[  233.602690]  ___might_sleep+0x154/0x16c
[  233.602696]  __might_sleep+0x78/0x88
[  233.602704]  mutex_lock+0x2c/0x5c
[  233.602717]  ath10k_pci_diag_read_mem+0x68/0x21c [ath10k_pci]
[  233.602725]  ath10k_pci_diag_read32+0x48/0x74 [ath10k_pci]
[  233.602733]  ath10k_pci_dump_registers+0x5c/0x16c [ath10k_pci]
[  233.602741]  ath10k_pci_fw_crashed_dump+0xb8/0x548 [ath10k_pci]
[  233.602749]  ath10k_pci_napi_poll+0x60/0x128 [ath10k_pci]
[  233.602757]  net_rx_action+0x140/0x388
[  233.602766]  __do_softirq+0x1b0/0x35c
[...]

ath10k_pci_fw_crashed_dump() is called from NAPI contexts, and firmware
memory dumps are retrieved using the diag memory interface.

A simple reproduction case is to run this on QCA6174A /
WLAN.RM.4.4.1-00132-QCARMSWP-1, which happens to be a way to b0rk the
firmware:

  dd if=/sys/kernel/debug/ieee80211/phy0/ath10k/mem_value bs=4K count=1
of=/dev/null

(NB: simulated firmware crashes, via debugfs, don't trigger firmware
dumps.)

The fix is to move the crash-dump into a workqueue context, and avoid
relying on 'data_lock' for most mutual exclusion. We only keep using it
here for protecting 'fw_crash_counter', while the rest of the coredump
buffers are protected by a new 'dump_mutex'.

I've tested the above with simulated firmware crashes (debugfs 'reset'
file), real firmware crashes (the 'dd' command above), and a variety of
reboot and suspend/resume configurations on QCA6174A.

Reported here:
http://lkml.kernel.org/linux-wireless/20190325202706.GA68720@google.com

Fixes: 25733c4e67 ("ath10k: pci: use mutex for diagnostic window CE polling")
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-04-29 17:24:37 +03:00
Andrew Jones
dbcdae185a Documentation: kvm: fix dirty log ioctl arch lists
KVM_GET_DIRTY_LOG is implemented by all architectures, not just x86,
and KVM_CAP_MANUAL_DIRTY_LOG_PROTECT is additionally implemented by
arm, arm64, and mips.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-04-29 14:06:04 +02:00
Alexander Lochmann
f69e749a49 Abort file_remove_privs() for non-reg. files
file_remove_privs() might be called for non-regular files, e.g.
blkdev inode. There is no reason to do its job on things
like blkdev inodes, pipes, or cdevs. Hence, abort if
file does not refer to a regular inode.

AV: more to the point, for devices there might be any number of
inodes refering to given device.  Which one to strip the permissions
from, even if that made any sense in the first place?  All of them
will be observed with contents modified, after all.

Found by LockDoc (Alexander Lochmann, Horst Schirmeier and Olaf
Spinczyk)

Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Alexander Lochmann <alexander.lochmann@tu-dortmund.de>
Signed-off-by: Horst Schirmeier <horst.schirmeier@tu-dortmund.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2019-04-28 21:46:57 -04:00
Al Viro
ee948837d7 [fix] get rid of checking for absent device name in vfs_get_tree()
It has no business being there, it's checked by relevant ->get_tree()
as it is *and* it returns the wrong error for no reason whatsoever.

Fixes: f3a09c9201 "introduce fs_context methods"
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2019-04-28 21:34:21 -04:00
Linus Torvalds
37624b5854 Linux 5.1-rc7 2019-04-28 17:04:13 -07:00
Jan Kara
b1da6a5187 fsnotify: Fix NULL ptr deref in fanotify_get_fsid()
fanotify_get_fsid() is reading mark->connector->fsid under srcu. It can
happen that it sees mark not fully initialized or mark that is already
detached from the object list. In these cases mark->connector
can be NULL leading to NULL ptr dereference. Fix the problem by
being careful when reading mark->connector and check it for being NULL.
Also use WRITE_ONCE when writing the mark just to prevent compiler from
doing something stupid.

Reported-by: syzbot+15927486a4f1bfcbaf91@syzkaller.appspotmail.com
Fixes: 77115225ac ("fanotify: cache fsid in fsnotify_mark_connector")
Signed-off-by: Jan Kara <jack@suse.cz>
2019-04-28 22:14:50 +02:00
Linus Torvalds
9520b5324b A small number of ARM fixes
- Fix function tracer and unwinder dependencies so that we don't
   end up building kernels that will crash.
 - Fix ARMv7M nommu initialisation (missing register initialisation)
 - Fix EFI decompressor entry (ensuring barrier instructions are
   enabled prior to use.)
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Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm

Pull ARM fixes from Russell King:
 "A small number of ARM fixes

   - Fix function tracer and unwinder dependencies so that we don't end
     up building kernels that will crash

   - Fix ARMv7M nommu initialisation (missing register initialisation)

   - Fix EFI decompressor entry (ensuring barrier instructions are
     enabled prior to use)"

* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: 8857/1: efi: enable CP15 DMB instructions before cleaning the cache
  ARM: 8856/1: NOMMU: Fix CCR register faulty initialization when MPU is disabled
  ARM: fix function graph tracer and unwinder dependencies
2019-04-28 10:50:57 -07:00
Linus Torvalds
0d82044e1b powerpc fixes for 5.1 #6
A one-liner to make our Radix MMU support depend on HUGETLB_PAGE. We use some of
 the hugetlb inlines (eg. pud_huge()) when operating on the linear mapping and if
 they're compiled into empty wrappers we can corrupt memory.
 
 Then two fixes to our VFIO IOMMU code. The first is not a regression but fixes
 the locking to avoid a user-triggerable deadlock.
 
 The second does fix a regression since rc1, and depends on the first fix. It
 makes it possible to run guests with large amounts of memory again (~256GB).
 
 Thanks to:
   Alexey Kardashevskiy.
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Merge tag 'powerpc-5.1-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:
 "A one-liner to make our Radix MMU support depend on HUGETLB_PAGE. We
  use some of the hugetlb inlines (eg. pud_huge()) when operating on the
  linear mapping and if they're compiled into empty wrappers we can
  corrupt memory.

  Then two fixes to our VFIO IOMMU code. The first is not a regression
  but fixes the locking to avoid a user-triggerable deadlock.

  The second does fix a regression since rc1, and depends on the first
  fix. It makes it possible to run guests with large amounts of memory
  again (~256GB).

  Thanks to Alexey Kardashevskiy"

* tag 'powerpc-5.1-6' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/mm_iommu: Allow pinning large regions
  powerpc/mm_iommu: Fix potential deadlock
  powerpc/mm/radix: Make Radix require HUGETLB_PAGE
2019-04-28 10:43:15 -07:00
Linus Torvalds
975a0f400f for-linus-20190428
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Merge tag 'for-linus-20190428' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "A set of io_uring fixes that should go into this release. In
  particular, this contains:

   - The mutex lock vs ctx ref count fix (me)

   - Removal of a dead variable (me)

   - Two race fixes (Stefan)

   - Ring head/tail condition fix for poll full SQ detection (Stefan)"

* tag 'for-linus-20190428' of git://git.kernel.dk/linux-block:
  io_uring: remove 'state' argument from io_{read,write} path
  io_uring: fix poll full SQ detection
  io_uring: fix race condition when sq threads goes sleeping
  io_uring: fix race condition reading SQ entries
  io_uring: fail io_uring_register(2) on a dying io_uring instance
2019-04-28 10:06:32 -07:00
Linus Torvalds
14f974d7f0 5.1 Third RC pull request
One core bug fix and a few driver ones
 
 - FRWR memory registration for hfi1/qib didn't work with with some iovas
   causing a NFSoRDMA failure regression due to a fix in the NFS side
 
 - A command flow error in mlx5 allowed user space to send a corrupt
   command (and also smash the kernel stack we've since learned)
 
 - Fix a regression and some bugs with device hot unplug that was
   discovered while reviewing Andrea's patches
 
 - hns has a failure if the user asks for certain QP configurations
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma fixes from Jason Gunthorpe:
 "One core bug fix and a few driver ones

   - FRWR memory registration for hfi1/qib didn't work with with some
     iovas causing a NFSoRDMA failure regression due to a fix in the NFS
     side

   - A command flow error in mlx5 allowed user space to send a corrupt
     command (and also smash the kernel stack we've since learned)

   - Fix a regression and some bugs with device hot unplug that was
     discovered while reviewing Andrea's patches

   - hns has a failure if the user asks for certain QP configurations"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  RDMA/hns: Bugfix for mapping user db
  RDMA/ucontext: Fix regression with disassociate
  RDMA/mlx5: Use rdma_user_map_io for mapping BAR pages
  RDMA/mlx5: Do not allow the user to write to the clock page
  IB/mlx5: Fix scatter to CQE in DCT QP creation
  IB/rdmavt: Fix frwr memory registration
2019-04-28 10:00:45 -07:00
Linus Torvalds
72a6e35db3 dmaengine-fix-5.1-rc7
dmaengine fixes for v5.1-rc7
 
  - fix for wrong register use in mediatek driver
  - fix in sh driver for glitch is tx_status and treating 0 a valid
    reside for cyclic
  - fix in bcm driver for using right memory allocation flag
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Merge tag 'dmaengine-fix-5.1-rc7' of git://git.infradead.org/users/vkoul/slave-dma

Pull dmaengine fixes from Vinod Koul:

 - fix for wrong register use in mediatek driver

 - fix in sh driver for glitch is tx_status and treating 0 a valid
   residue for cyclic

 - fix in bcm driver for using right memory allocation flag

* tag 'dmaengine-fix-5.1-rc7' of git://git.infradead.org/users/vkoul/slave-dma:
  dmaengine: mediatek-cqdma: fix wrong register usage in mtk_cqdma_start
  dmaengine: sh: rcar-dmac: Fix glitch in dmaengine_tx_status
  dmaengine: sh: rcar-dmac: With cyclic DMA residue 0 is valid
  dmaengine: bcm2835: Avoid GFP_KERNEL in device_prep_slave_sg
2019-04-28 09:45:18 -07:00
Greg Kroah-Hartman
e5c812e84f ALSA: line6: use dynamic buffers
The line6 driver uses a lot of USB buffers off of the stack, which is
not allowed on many systems, causing the driver to crash on some of
them.  Fix this up by dynamically allocating the buffers with kmalloc()
which allows for proper DMA-able memory.

Reported-by: Christo Gouws <gouws.christo@gmail.com>
Reported-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Christo Gouws <gouws.christo@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-04-28 18:40:26 +02:00
Kalle Valo
5c403533fb Fourth batch of patches intended for v5.1
* Fix an oops when we receive a packet with bogus lengths;
 * Fix a bug that prevented 5350 devices from working;
 * Fix a small merge damage from the previous series;
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Merge tag 'iwlwifi-for-kalle-2019-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes

Fourth batch of patches intended for v5.1

* Fix an oops when we receive a packet with bogus lengths;
* Fix a bug that prevented 5350 devices from working;
* Fix a small merge damage from the previous series;
2019-04-28 14:25:33 +03:00
Luca Coelho
d156e67d3f iwlwifi: mvm: fix merge damage in iwl_mvm_vif_dbgfs_register()
When I rebased Greg's patch, I accidentally left the old if block that
was already there.  Remove it.

Fixes: 154d4899e4 ("iwlwifi: mvm: properly check debugfs dentry before using it")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-04-28 09:59:59 +03:00
Emmanuel Grumbach
5c9adef978 iwlwifi: fix driver operation for 5350
We introduced a bug that prevented this old device from
working. The driver would simply not be able to complete
the INIT flow while spewing this warning:

 CSR addresses aren't configured
 WARNING: CPU: 0 PID: 819 at drivers/net/wireless/intel/iwlwifi/pcie/drv.c:917
 iwl_pci_probe+0x160/0x1e0 [iwlwifi]

Cc: stable@vger.kernel.org # v4.18+
Fixes: a8cbb46f83 ("iwlwifi: allow different csr flags for different device families")
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Fixes: c8f1b51e50 ("iwlwifi: allow different csr flags for different device families")
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-04-28 09:59:59 +03:00
Luca Coelho
de1887c064 iwlwifi: mvm: check for length correctness in iwl_mvm_create_skb()
We don't check for the validity of the lengths in the packet received
from the firmware.  If the MPDU length received in the rx descriptor
is too short to contain the header length and the crypt length
together, we may end up trying to copy a negative number of bytes
(headlen - hdrlen < 0) which will underflow and cause us to try to
copy a huge amount of data.  This causes oopses such as this one:

BUG: unable to handle kernel paging request at ffff896be2970000
PGD 5e201067 P4D 5e201067 PUD 5e205067 PMD 16110d063 PTE 8000000162970161
Oops: 0003 [#1] PREEMPT SMP NOPTI
CPU: 2 PID: 1824 Comm: irq/134-iwlwifi Not tainted 4.19.33-04308-geea41cf4930f #1
Hardware name: [...]
RIP: 0010:memcpy_erms+0x6/0x10
Code: 90 90 90 90 eb 1e 0f 1f 00 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 c3 66 0f 1f 44 00 00 48 89 f8 48 89 d1 <f3> a4 c3
 0f 1f 80 00 00 00 00 48 89 f8 48 83 fa 20 72 7e 40 38 fe
RSP: 0018:ffffa4630196fc60 EFLAGS: 00010287
RAX: ffff896be2924618 RBX: ffff896bc8ecc600 RCX: 00000000fffb4610
RDX: 00000000fffffff8 RSI: ffff896a835e2a38 RDI: ffff896be2970000
RBP: ffffa4630196fd30 R08: ffff896bc8ecc600 R09: ffff896a83597000
R10: ffff896bd6998400 R11: 000000000200407f R12: ffff896a83597050
R13: 00000000fffffff8 R14: 0000000000000010 R15: ffff896a83597038
FS:  0000000000000000(0000) GS:ffff896be8280000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff896be2970000 CR3: 000000005dc12002 CR4: 00000000003606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 iwl_mvm_rx_mpdu_mq+0xb51/0x121b [iwlmvm]
 iwl_pcie_rx_handle+0x58c/0xa89 [iwlwifi]
 iwl_pcie_irq_rx_msix_handler+0xd9/0x12a [iwlwifi]
 irq_thread_fn+0x24/0x49
 irq_thread+0xb0/0x122
 kthread+0x138/0x140
 ret_from_fork+0x1f/0x40

Fix that by checking the lengths for correctness and trigger a warning
to show that we have received wrong data.

Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2019-04-28 09:59:59 +03:00
Kailang Yang
0700d3d117 ALSA: hda/realtek - Fixed Dell AIO speaker noise
Fixed Dell AIO speaker noise.
spec->gen.auto_mute_via_amp = 1, this option was solved speaker white
noise at boot.
codec->power_save_node = 0, this option was solved speaker noise at
resume back.

Fixes: 9226665159 ("ALSA: hda/realtek - Fix Dell AIO LineOut issue")
Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-04-28 08:20:14 +02:00
Paolo Abeni
21f1b8a663 udp: fix GRO reception in case of length mismatch
Currently, the UDP GRO code path does bad things on some edge
conditions - Aggregation can happen even on packet with different
lengths.

Fix the above by rewriting the 'complete' condition for GRO
packets. While at it, note explicitly that we allow merging the
first packet per burst below gso_size.

Reported-by: Sean Tong <seantong114@gmail.com>
Fixes: e20cf8d3f1 ("udp: implement GRO for plain UDP sockets.")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27 22:07:24 -04:00
David S. Miller
fbef9478ff Merge branch 'tls-data-copies'
Jakub Kicinski says:

====================
net/tls: fix data copies in tls_device_reencrypt()

This series fixes the tls_device_reencrypt() which is broken
if record starts in the frags of the message skb.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27 20:17:20 -04:00
Jakub Kicinski
eb3d38d5ad net/tls: fix copy to fragments in reencrypt
Fragments may contain data from other records so we have to account
for that when we calculate the destination and max length of copy we
can perform.  Note that 'offset' is the offset within the message,
so it can't be passed as offset within the frag..

Here skb_store_bits() would have realised the call is wrong and
simply not copy data.

Fixes: 4799ac81e5 ("tls: Add rx inline crypto offload")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27 20:17:19 -04:00
Jakub Kicinski
97e1caa517 net/tls: don't copy negative amounts of data in reencrypt
There is no guarantee the record starts before the skb frags.
If we don't check for this condition copy amount will get
negative, leading to reads and writes to random memory locations.
Familiar hilarity ensues.

Fixes: 4799ac81e5 ("tls: Add rx inline crypto offload")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27 20:17:19 -04:00
Linus Torvalds
25cce03b1d Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
 "Just a couple of fixups for Synaptics RMI4 driver and allowing
  snvs_pwrkey to be selected on more boards"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: synaptics-rmi4 - write config register values to the right offset
  Input: synaptics-rmi4 - fix possible double free
  Input: snvs_pwrkey - make it depend on ARCH_MXC
2019-04-27 16:27:02 -07:00
David S. Miller
b2a20fd072 Merge branch 'bnxt_en-Misc-bug-fixes'
Michael Chan says:

====================
bnxt_en: Misc. bug fixes.

6 miscellaneous bug fixes covering several issues in error code paths,
a setup issue for statistics DMA, and an improvement for setting up
multicast address filters.

Please queue these for stable as well.
Patch #5 (bnxt_en: Fix statistics context reservation logic) is for the
most recent 5.0 stable only.  Thanks.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27 17:00:19 -04:00
Michael Chan
0b397b17a4 bnxt_en: Fix uninitialized variable usage in bnxt_rx_pkt().
In bnxt_rx_pkt(), if the driver encounters BD errors, it will recycle
the buffers and jump to the end where the uninitailized variable "len"
is referenced.  Fix it by adding a new jump label that will skip
the length update.  This is the most correct fix since the length
may not be valid when we get this type of error.

Fixes: 6a8788f256 ("bnxt_en: add support for software dynamic interrupt moderation")
Reported-by: Nathan Chancellor <natechancellor@gmail.com>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27 17:00:19 -04:00
Michael Chan
3f93cd3f09 bnxt_en: Fix statistics context reservation logic.
In an earlier commit that fixes the number of stats contexts to
reserve for the RDMA driver, we added a function parameter to pass in
the number of stats contexts to all the relevant functions.  The passed
in parameter should have been used to set the enables field of the
firmware message.

Fixes: 780baad44f ("bnxt_en: Reserve 1 stat_ctx for RDMA driver.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27 17:00:19 -04:00
Michael Chan
ad361adf0d bnxt_en: Pass correct extended TX port statistics size to firmware.
If driver determines that extended TX port statistics are not supported
or allocation of the data structure fails, make sure to pass 0 TX stats
size to firmware to disable it.  The firmware returned TX stats size should
also be set to 0 for consistency.  This will prevent
bnxt_get_ethtool_stats() from accessing the NULL TX stats pointer in
case there is mismatch between firmware and driver.

Fixes: 36e53349b6 ("bnxt_en: Add additional extended port statistics.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27 17:00:19 -04:00
Michael Chan
1f83391bd6 bnxt_en: Fix possible crash in bnxt_hwrm_ring_free() under error conditions.
If we encounter errors during open and proceed to clean up,
bnxt_hwrm_ring_free() may crash if the rings we try to free have never
been allocated.  bnxt_cp_ring_for_rx() or bnxt_cp_ring_for_tx()
may reference pointers that have not been allocated.

Fix it by checking for valid fw_ring_id first before calling
bnxt_cp_ring_for_rx() or bnxt_cp_ring_for_tx().

Fixes: 2c61d2117e ("bnxt_en: Add helper functions to get firmware CP ring ID.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27 17:00:18 -04:00
Vasundhara Volam
f9099d6114 bnxt_en: Free short FW command HWRM memory in error path in bnxt_init_one()
In the bnxt_init_one() error path, short FW command request memory
is not freed. This patch fixes it.

Fixes: e605db801b ("bnxt_en: Support for Short Firmware Message")
Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27 17:00:18 -04:00
Michael Chan
b4e30e8e7e bnxt_en: Improve multicast address setup logic.
The driver builds a list of multicast addresses and sends it to the
firmware when the driver's ndo_set_rx_mode() is called.  In rare
cases, the firmware can fail this call if internal resources to
add multicast addresses are exhausted.  In that case, we should
try the call again by setting the ALL_MCAST flag which is more
guaranteed to succeed.

Fixes: c0c050c58d ("bnxt_en: New Broadcom ethernet driver.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27 17:00:18 -04:00
Pierre-Louis Bossart
10b02b53a9
ASoC: Intel: select relevant machine drivers for SOF
SOF can only support specific machine drivers, handle dependencies

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-04-28 02:51:54 +09:00
Liam Girdwood
f35bf70f61
ASoC: Intel: Make sure BDW based machine drivers build for SOF
BDW uses hard coded IPC calls to set SSP, not needed in SOF as SSP is
configured via topology.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-04-28 02:51:50 +09:00
Liam Girdwood
7e978fa37d
ASoC: SOF: Add Build support for SOF core and Intel drivers
Build SOF core and Intel-specific drivers.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-04-28 02:51:46 +09:00
Pierre-Louis Bossart
e6b140e918
ASoC: Intel: Kconfig: expose common option between SST and SOF drivers
Both drivers rely on the same module, expose it for both configurations

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-04-28 02:51:41 +09:00
Liam Girdwood
273020522e
ASoC: SOF: Intel: Add platform differentiation for APL and CNL
Add platform differentiation operations for different Intel HDA DSP
platforms.

Signed-off-by: Keyon Jie <yang.jie@linux.intel.com>
Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-04-28 02:51:36 +09:00
Keyon Jie
fdd961e37e
ASoC: SOF: Intel: add SKL+ platform DAIs
Add declarations for DAIs and utilities for link DMA management

Signed-off-by: Keyon Jie <yang.jie@linux.intel.com>
Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-04-28 02:51:32 +09:00
Pierre-Louis Bossart
5507b8103e
ASoC: SOF: Intel: Add support for HDAudio codecs
Add probe, init and cleanup routines for HDaudio.

Signed-off-by: Keyon Jie <yang.jie@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-04-28 02:51:27 +09:00