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possible deadlock in static_key_slow_inc

Status: closed as invalid on 2017/10/31 11:27
Reported-by: syzbot+d513fea9db70a6e43c4a5df608bace7dc92db326@syzkaller.appspotmail.com
First crash: 2429d, last: 2425d
▶ ▼ Similar bugs (5)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 possible deadlock in static_key_slow_inc C done 1908 294d 407d 3/3 fixed on 2023/08/16 18:53
linux-4.14 possible deadlock in static_key_slow_inc 1 808d 808d 0/1 auto-closed as invalid on 2022/05/31 03:42
upstream possible deadlock in static_key_slow_inc (3) cgroups C done 6387 266d 314d 23/26 fixed on 2023/09/28 17:51
linux-4.14 possible deadlock in static_key_slow_inc (2) C 2 436d 475d 0/1 upstream: reported C repro on 2022/12/29 19:42
upstream possible deadlock in static_key_slow_inc (2) cgroups C error 32622 314d 532d 22/26 fixed on 2023/06/08 14:41

Sample crash report:
WARNING: possible circular locking dependency detected
4.13.0-rc6-next-20170825+ #9 Not tainted
------------------------------------------------------
syz-executor0/3387 is trying to acquire lock:
 (cpu_hotplug_lock.rw_sem){++++}, at: [<ffffffff8185325d>] static_key_slow_inc+0x9d/0x3c0 kernel/jump_label.c:123

but task is already holding lock:
 (rtnl_mutex){+.+.}, at: [<ffffffff83ed8cfc>] rtnl_lock net/core/rtnetlink.c:72 [inline]
 (rtnl_mutex){+.+.}, at: [<ffffffff83ed8cfc>] rtnetlink_rcv_msg+0x65c/0x1090 net/core/rtnetlink.c:4241

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #3 (rtnl_mutex){+.+.}:
       check_prevs_add kernel/locking/lockdep.c:2020 [inline]
       validate_chain kernel/locking/lockdep.c:2469 [inline]
       __lock_acquire+0x3286/0x4620 kernel/locking/lockdep.c:3498
       lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4002
       __mutex_lock_common kernel/locking/mutex.c:756 [inline]
       __mutex_lock+0x16f/0x1870 kernel/locking/mutex.c:893
       mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908
       rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
       reg_todo+0xc6/0xbe0 net/wireless/reg.c:2337
       process_one_work+0xbfd/0x1be0 kernel/workqueue.c:2098
       worker_thread+0x223/0x1860 kernel/workqueue.c:2233
       kthread+0x39c/0x470 kernel/kthread.c:231
       ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:431

-> #2 (reg_work){+.+.}:
       process_one_work+0xba5/0x1be0 kernel/workqueue.c:2095
       worker_thread+0x223/0x1860 kernel/workqueue.c:2233
       kthread+0x39c/0x470 kernel/kthread.c:231
       ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:431
       0xffffffffffffffff

-> #1 ((complete)&rcu.completion){+.+.}:
       check_prevs_add kernel/locking/lockdep.c:2020 [inline]
       validate_chain kernel/locking/lockdep.c:2469 [inline]
       __lock_acquire+0x3286/0x4620 kernel/locking/lockdep.c:3498
       lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4002
       complete_acquire include/linux/completion.h:39 [inline]
       __wait_for_common kernel/sched/completion.c:108 [inline]
       wait_for_common kernel/sched/completion.c:122 [inline]
       wait_for_completion+0xc8/0x770 kernel/sched/completion.c:143
       __synchronize_srcu+0x1b5/0x250 kernel/rcu/srcutree.c:898
       synchronize_srcu_expedited kernel/rcu/srcutree.c:923 [inline]
       synchronize_srcu+0x1a3/0x560 kernel/rcu/srcutree.c:974
       quarantine_remove_cache+0xd7/0xf0 mm/kasan/quarantine.c:327
       kasan_cache_shrink+0x9/0x10 mm/kasan/kasan.c:380
       kmem_cache_shrink+0x15/0x30 mm/slab_common.c:857
       acpi_os_purge_cache+0x15/0x20 drivers/acpi/osl.c:1560
       acpi_purge_cached_objects+0x38/0xc9 drivers/acpi/acpica/utxface.c:271
       acpi_initialize_objects+0xc5/0x112 drivers/acpi/acpica/utxfinit.c:302
       acpi_bus_init drivers/acpi/bus.c:1131 [inline]
       acpi_init+0x23c/0x8e6 drivers/acpi/bus.c:1220
       do_one_initcall+0x9e/0x330 init/main.c:826
       do_initcall_level init/main.c:892 [inline]
       do_initcalls init/main.c:900 [inline]
       do_basic_setup init/main.c:918 [inline]
       kernel_init_freeable+0x469/0x521 init/main.c:1066
       kernel_init+0x13/0x172 init/main.c:993
       ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:431

-> #0 (cpu_hotplug_lock.rw_sem){++++}:
       check_prev_add+0x865/0x1520 kernel/locking/lockdep.c:1894
       check_prevs_add kernel/locking/lockdep.c:2020 [inline]
       validate_chain kernel/locking/lockdep.c:2469 [inline]
       __lock_acquire+0x3286/0x4620 kernel/locking/lockdep.c:3498
       lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4002
       percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:35 [inline]
       percpu_down_read include/linux/percpu-rwsem.h:58 [inline]
       cpus_read_lock+0x42/0x90 kernel/cpu.c:218
       static_key_slow_inc+0x9d/0x3c0 kernel/jump_label.c:123
       ip_tunnel_need_metadata+0x15/0x20 net/ipv4/ip_tunnel_core.c:431
       fib_nl_newrule+0x192f/0x2b80 net/core/fib_rules.c:610
       rtnetlink_rcv_msg+0x733/0x1090 net/core/rtnetlink.c:4246
       netlink_rcv_skb+0x216/0x440 net/netlink/af_netlink.c:2397
       rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:4258
       netlink_unicast_kernel net/netlink/af_netlink.c:1265 [inline]
       netlink_unicast+0x4e8/0x6f0 net/netlink/af_netlink.c:1291
       netlink_sendmsg+0xa4a/0xe70 net/netlink/af_netlink.c:1854
       sock_sendmsg_nosec net/socket.c:633 [inline]
       sock_sendmsg+0xca/0x110 net/socket.c:643
       sock_write_iter+0x320/0x5e0 net/socket.c:912
       call_write_iter include/linux/fs.h:1744 [inline]
       do_iter_readv_writev+0x531/0x7f0 fs/read_write.c:650
       do_iter_write+0x15a/0x540 fs/read_write.c:929
       vfs_writev+0x18a/0x340 fs/read_write.c:975
       do_writev+0xfc/0x2a0 fs/read_write.c:1011
       SYSC_writev fs/read_write.c:1084 [inline]
       SyS_writev+0x27/0x30 fs/read_write.c:1081
       entry_SYSCALL_64_fastpath+0x1f/0xbe

other info that might help us debug this:

Chain exists of:
  cpu_hotplug_lock.rw_sem --> reg_work --> rtnl_mutex

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(rtnl_mutex);
                               lock(reg_work);
                               lock(rtnl_mutex);
  lock(cpu_hotplug_lock.rw_sem);

 *** DEADLOCK ***

1 lock held by syz-executor0/3387:
 #0:  (rtnl_mutex){+.+.}, at: [<ffffffff83ed8cfc>] rtnl_lock net/core/rtnetlink.c:72 [inline]
 #0:  (rtnl_mutex){+.+.}, at: [<ffffffff83ed8cfc>] rtnetlink_rcv_msg+0x65c/0x1090 net/core/rtnetlink.c:4241

stack backtrace:
CPU: 3 PID: 3387 Comm: syz-executor0 Not tainted 4.13.0-rc6-next-20170825+ #9
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:16 [inline]
 dump_stack+0x194/0x257 lib/dump_stack.c:52
 print_circular_bug+0x503/0x710 kernel/locking/lockdep.c:1259
 check_prev_add+0x865/0x1520 kernel/locking/lockdep.c:1894
 check_prevs_add kernel/locking/lockdep.c:2020 [inline]
 validate_chain kernel/locking/lockdep.c:2469 [inline]
 __lock_acquire+0x3286/0x4620 kernel/locking/lockdep.c:3498
 lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4002
 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:35 [inline]
 percpu_down_read include/linux/percpu-rwsem.h:58 [inline]
 cpus_read_lock+0x42/0x90 kernel/cpu.c:218
 static_key_slow_inc+0x9d/0x3c0 kernel/jump_label.c:123
 ip_tunnel_need_metadata+0x15/0x20 net/ipv4/ip_tunnel_core.c:431
 fib_nl_newrule+0x192f/0x2b80 net/core/fib_rules.c:610
 rtnetlink_rcv_msg+0x733/0x1090 net/core/rtnetlink.c:4246
 netlink_rcv_skb+0x216/0x440 net/netlink/af_netlink.c:2397
 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:4258
 netlink_unicast_kernel net/netlink/af_netlink.c:1265 [inline]
 netlink_unicast+0x4e8/0x6f0 net/netlink/af_netlink.c:1291
 netlink_sendmsg+0xa4a/0xe70 net/netlink/af_netlink.c:1854
 sock_sendmsg_nosec net/socket.c:633 [inline]
 sock_sendmsg+0xca/0x110 net/socket.c:643
 sock_write_iter+0x320/0x5e0 net/socket.c:912
 call_write_iter include/linux/fs.h:1744 [inline]
 do_iter_readv_writev+0x531/0x7f0 fs/read_write.c:650
 do_iter_write+0x15a/0x540 fs/read_write.c:929
 vfs_writev+0x18a/0x340 fs/read_write.c:975
 do_writev+0xfc/0x2a0 fs/read_write.c:1011
 SYSC_writev fs/read_write.c:1084 [inline]
 SyS_writev+0x27/0x30 fs/read_write.c:1081
 entry_SYSCALL_64_fastpath+0x1f/0xbe
RIP: 0033:0x446749
RSP: 002b:00007f0b16357c08 EFLAGS: 00000292 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000446749
RDX: 0000000000000001 RSI: 0000000020917ff0 RDI: 0000000000000005
RBP: 0000000000000086 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0b163589c0 R15: 00007f0b16358700
netlink: 2 bytes leftover after parsing attributes in process `syz-executor0'.
netlink: 1 bytes leftover after parsing attributes in process `syz-executor0'.
netlink: 2 bytes leftover after parsing attributes in process `syz-executor0'.
sg_write: data in/out 327773/154 bytes for SCSI command 0x51-- guessing data in;
   program syz-executor6 not setting count and/or reply_len properly
sg_write: data in/out 327773/154 bytes for SCSI command 0x51-- guessing data in;
   program syz-executor6 not setting count and/or reply_len properly
audit: type=1326 audit(1503893886.994:2): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=3449 comm="syz-executor5" exe="/syz-executor5" sig=31 arch=c000003e syscall=202 compat=0 ip=0x446749 code=0xffff0000
skbuff: bad partial csum: csum=256/65280 len=310
skbuff: bad partial csum: csum=256/65280 len=310
audit: type=1326 audit(1503893887.047:3): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=3449 comm="syz-executor5" exe="/syz-executor5" sig=31 arch=c000003e syscall=202 compat=0 ip=0x446749 code=0xffff0000
syz-executor6 uses obsolete (PF_INET,SOCK_PACKET)
netlink: 1 bytes leftover after parsing attributes in process `syz-executor0'.
mmap: syz-executor2 (3535) uses deprecated remap_file_pages() syscall. See Documentation/vm/remap_file_pages.txt.
netlink: 1 bytes leftover after parsing attributes in process `syz-executor0'.
QAT: Invalid ioctl
dccp_v6_rcv: dropped packet with invalid checksum
netlink: 3 bytes leftover after parsing attributes in process `syz-executor2'.
QAT: Invalid ioctl
netlink: 3 bytes leftover after parsing attributes in process `syz-executor2'.
PF_BRIDGE: RTM_NEWNEIGH with invalid ifindex
*** Guest State ***
CR0: actual=0x0000000000000030, shadow=0x0000000060000010, gh_mask=fffffffffffffff7
CR4: actual=0x0000000000002050, shadow=0x0000000000000000, gh_mask=ffffffffffffe871
CR3 = 0x00000000fffbc000
RSP = 0x0000000000000000  RIP = 0x000000000000fff0
RFLAGS=0x00000002         DR7 = 0x0000000000000400
Sysenter RSP=0000000000000000 CS:RIP=0000:0000000000000000
CS:   sel=0xf000, attr=0x0009b, limit=0x0000ffff, base=0x00000000ffff0000
DS:   sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000
SS:   sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000
ES:   sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000
FS:   sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000
GS:   sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000
GDTR:                           limit=0x0000ffff, base=0x0000000000000000
LDTR: sel=0x0000, attr=0x00082, limit=0x0000ffff, base=0x0000000000000000
IDTR:                           limit=0x0000ffff, base=0x0000000000000000
TR:   sel=0x0000, attr=0x0008b, limit=0x0000ffff, base=0x0000000000000000
EFER =     0x0000000000000000  PAT = 0x0007040600070406
DebugCtl = 0x0000000000000000  DebugExceptions = 0x0000000000000000
BndCfgS = 0x0000000000000000
Interruptibility = 00000000  ActivityState = 00000000
*** Host State ***
RIP = 0xffffffff811b8fd7  RSP = 0xffff88004ac0f4c8
CS=0010 SS=0018 DS=0000 ES=0000 FS=0000 GS=0000 TR=0040
FSBase=00007f0d45f44700 GSBase=ffff88006de00000 TRBase=ffff88006df23100
netlink: 11 bytes leftover after parsing attributes in process `syz-executor0'.
GDTBase=ffffffffff574000 IDTBase=ffffffffff57b000
CR0=0000000080050033 CR3=00000000680ac000 CR4=00000000000026e0
Sysenter RSP=0000000000000000 CS:RIP=0010:ffffffff84da5a70
EFER = 0x0000000000000d01  PAT = 0x0007040600070406
PF_BRIDGE: RTM_NEWNEIGH with invalid ifindex
*** Control State ***
PinBased=0000003f CPUBased=b699edfe SecondaryExec=000000e2
EntryControls=0001d1ff ExitControls=00afefff
ExceptionBitmap=00060042 PFECmask=00000000 PFECmatch=00000000
VMEntry: intr_info=80000000 errcode=00000000 ilen=00000000
VMExit: intr_info=00000000 errcode=00000000 ilen=00000000
        reason=80000021 qualification=0000000000000000
IDTVectoring: info=00000000 errcode=00000000
TSC Offset = 0xffffffe2025cbc04
EPT pointer = 0x000000006965001e
Virtual processor ID = 0x0019
netlink: 11 bytes leftover after parsing attributes in process `syz-executor0'.
device lo entered promiscuous mode
*** Guest State ***
CR0: actual=0x0000000000000030, shadow=0x0000000060000010, gh_mask=fffffffffffffff7
CR4: actual=0x0000000000002050, shadow=0x0000000000000000, gh_mask=ffffffffffffe871
CR3 = 0x00000000fffbc000
RSP = 0x0000000000000f80  RIP = 0x0000000000000000
RFLAGS=0x00000002         DR7 = 0x0000000000000400
Sysenter RSP=0000000000000000 CS:RIP=0000:0000000000000000
CS:   sel=0x0000, attr=0x0009b, limit=0x0000ffff, base=0x0000000000000000
DS:   sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000
SS:   sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000
ES:   sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000
FS:   sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000
capability: warning: `syz-executor1' uses 32-bit capabilities (legacy support in use)
GS:   sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000
GDTR:                           limit=0x000007ff, base=0x0000000000001000
LDTR: sel=0x0008, attr=0x04082, limit=0x000007ff, base=0x0000000000001800
IDTR:                           limit=0x0000ffff, base=0x0000000000000000
TR:   sel=0x0000, attr=0x0008b, limit=0x0000ffff, base=0x0000000000000000
EFER =     0x0000000000000000  PAT = 0x0007040600070406
DebugCtl = 0x0000000000000000  DebugExceptions = 0x0000000000000000
BndCfgS = 0x0000000000000000
Interruptibility = 00000000  ActivityState = 00000000
*** Host State ***
RIP = 0xffffffff811b8fd7  RSP = 0xffff88004e0174c8
CS=0010 SS=0018 DS=0000 ES=0000 FS=0000 GS=0000 TR=0040
FSBase=00007f0d45f6a700 GSBase=ffff88003ec00000 TRBase=ffff88003ec23100
GDTBase=ffffffffff577000 IDTBase=ffffffffff57b000
CR0=0000000080050033 CR3=000000006760d000 CR4=00000000000026f0
Sysenter RSP=0000000000000000 CS:RIP=0010:ffffffff84da5a70
EFER = 0x0000000000000d01  PAT = 0x0007040600070406
*** Control State ***
PinBased=0000003f CPUBased=b699edfe SecondaryExec=000000e2
EntryControls=0001d1ff ExitControls=00afefff
ExceptionBitmap=00060042 PFECmask=00000000 PFECmatch=00000000
VMEntry: intr_info=800000f9 errcode=00000000 ilen=00000000
VMExit: intr_info=00000000 errcode=00000000 ilen=00000000
        reason=80000021 qualification=0000000000000000
IDTVectoring: info=00000000 errcode=00000000
TSC Offset = 0xffffffe1cacba662
EPT pointer = 0x000000003a02301e
Virtual processor ID = 0x0001
RDS: rds_bind could not find a transport for 224.0.0.1, load rds_tcp or rds_rdma?
raw_sendmsg: syz-executor0 forgot to set AF_INET. Fix it!
RDS: rds_bind could not find a transport for 224.0.0.1, load rds_tcp or rds_rdma?
QAT: Invalid ioctl
RDS: rds_bind could not find a transport for 172.20.3.187, load rds_tcp or rds_rdma?
QAT: Invalid ioctl
irq bypass consumer (token ffff88003a4e2000) registration fails: -16
RDS: rds_bind could not find a transport for 172.20.3.187, load rds_tcp or rds_rdma?
PF_BRIDGE: RTM_SETLINK with unknown ifindex
PF_BRIDGE: RTM_SETLINK with unknown ifindex
sctp: [Deprecated]: syz-executor3 (pid 4118) Use of struct sctp_assoc_value in delayed_ack socket option.
Use struct sctp_sack_info instead
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=47729 sclass=netlink_route_socket pig=4142 comm=syz-executor4
sctp: [Deprecated]: syz-executor3 (pid 4118) Use of struct sctp_assoc_value in delayed_ack socket option.
Use struct sctp_sack_info instead
*** Guest State ***
CR0: actual=0x0000000000000030, shadow=0x0000000060000010, gh_mask=fffffffffffffff7
CR4: actual=0x0000000000002050, shadow=0x0000000000000000, gh_mask=ffffffffffffe871
CR3 = 0x00000000fffbc000
RSP = 0x0000000000000000  RIP = 0x000000000000fff0
RFLAGS=0x00000100         DR7 = 0x0000000000000409
Sysenter RSP=0000000000000f80 CS:RIP=0030:0000000000002810
CS:   sel=0xf000, attr=0x0009b, limit=0x0000ffff, base=0x00000000ffff0000
DS:   sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000
SS:   sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000
ES:   sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000
FS:   sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000
GS:   sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000
GDTR:                           limit=0x0000ffff, base=0x0000000000000000
LDTR: sel=0x0000, attr=0x00082, limit=0x0000ffff, base=0x0000000000000000
IDTR:                           limit=0x0000ffff, base=0x0000000000000000
TR:   sel=0x0000, attr=0x0008b, limit=0x0000ffff, base=0x0000000000000000
EFER =     0x0000000000000000  PAT = 0x0007040600070406
DebugCtl = 0x0000000000000000  DebugExceptions = 0x0000000000000000
BndCfgS = 0x0000000000000000
Interruptibility = 00000000  ActivityState = 00000000
*** Host State ***
RIP = 0xffffffff811b8fd7  RSP = 0xffff88004d4274c8
CS=0010 SS=0018 DS=0000 ES=0000 FS=0000 GS=0000 TR=0040
FSBase=00007f0d45f6a700 GSBase=ffff88003ec00000 TRBase=ffff88003ec23100
GDTBase=ffffffffff577000 IDTBase=ffffffffff57b000
CR0=0000000080050033 CR3=000000003a43f000 CR4=00000000000026f0
Sysenter RSP=0000000000000000 CS:RIP=0010:ffffffff84da5a70
EFER = 0x0000000000000d01  PAT = 0x0007040600070406
*** Control State ***
PinBased=0000003f CPUBased=b6a1edfa SecondaryExec=000000e3
EntryControls=0001d1ff ExitControls=00afefff
ExceptionBitmap=0006004a PFECmask=00000000 PFECmatch=00000000
VMEntry: intr_info=00000000 errcode=00000000 ilen=00000000
VMExit: intr_info=00000000 errcode=00000000 ilen=00000000
        reason=80000021 qualification=0000000000000000
IDTVectoring: info=00000000 errcode=00000000
TSC Offset = 0xffffffe115cd3f94
TPR Threshold = 0x00
EPT pointer = 0x000000003d3b501e
Virtual processor ID = 0x0001
*** Guest State ***
CR0: actual=0x0000000000000030, shadow=0x0000000060000010, gh_mask=fffffffffffffff7
CR4: actual=0x0000000000002050, shadow=0x0000000000000000, gh_mask=ffffffffffffe871
CR3 = 0x00000000fffbc000
RSP = 0x0000000000000000  RIP = 0x000000000000fff0
RFLAGS=0x00000100         DR7 = 0x0000000000000409
Sysenter RSP=0000000000000000 CS:RIP=0000:0000000000000000
CS:   sel=0xf000, attr=0x0009b, limit=0x0000ffff, base=0x00000000ffff0000
DS:   sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000
SS:   sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000
ES:   sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000
FS:   sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000
GS:   sel=0x0000, attr=0x00093, limit=0x0000ffff, base=0x0000000000000000
GDTR:                           limit=0x0000ffff, base=0x0000000000000000
LDTR: sel=0x0000, attr=0x00082, limit=0x0000ffff, base=0x0000000000000000
IDTR:                           limit=0x0000ffff, base=0x0000000000000000
TR:   sel=0x0000, attr=0x0008b, limit=0x0000ffff, base=0x0000000000000000
EFER =     0x0000000000000000  PAT = 0x0007040600070406
DebugCtl = 0x0000000000000000  DebugExceptions = 0x0000000000000000
BndCfgS = 0x0000000000000000
Interruptibility = 00000000  ActivityState = 00000000
*** Host State ***
RIP = 0xffffffff811b8fd7  RSP = 0xffff88004d4274c8
CS=0010 SS=0018 DS=0000 ES=0000 FS=0000 GS=0000 TR=0040
FSBase=00007f0d45f6a700 GSBase=ffff88006df00000 TRBase=ffff88003ec23100
GDTBase=ffffffffff577000 IDTBase=ffffffffff57b000
CR0=0000000080050033 CR3=000000003a43f000 CR4=00000000000026e0
Sysenter RSP=0000000000000000 CS:RIP=0010:ffffffff84da5a70
EFER = 0x0000000000000d01  PAT = 0x0007040600070406
*** Control State ***
PinBased=0000003f CPUBased=b6a1edfa SecondaryExec=000000e3
EntryControls=0001d1ff ExitControls=00afefff
ExceptionBitmap=0006004a PFECmask=00000000 PFECmatch=00000000
VMEntry: intr_info=00000000 errcode=00000000 ilen=00000000
VMExit: intr_info=00000000 errcode=00000000 ilen=00000000
        reason=80000021 qualification=0000000000000000
IDTVectoring: info=00000000 errcode=00000000
TSC Offset = 0xffffffe10be5ea0c
TPR Threshold = 0x00
EPT pointer = 0x0000000069c6b01e
Virtual processor ID = 0x0029
IPv6: RTM_NEWROUTE with no NLM_F_CREATE or NLM_F_REPLACE
IPv6: NLM_F_CREATE should be set when creating new route
IPv6: RTM_NEWROUTE with no NLM_F_CREATE or NLM_F_REPLACE
sg_write: data in/out 327773/154 bytes for SCSI command 0x54-- guessing data in;
   program syz-executor3 not setting count and/or reply_len properly
SELinux: unrecognized netlink message: protocol=9 nlmsg_type=0 sclass=netlink_audit_socket pig=4319 comm=syz-executor2
SELinux: unrecognized netlink message: protocol=9 nlmsg_type=0 sclass=netlink_audit_socket pig=4319 comm=syz-executor2
SELinux: unrecognized netlink message: protocol=9 nlmsg_type=0 sclass=netlink_audit_socket pig=4319 comm=syz-executor2
sg_write: data in/out 327773/154 bytes for SCSI command 0x54-- guessing data in;
   program syz-executor3 not setting count and/or reply_len properly
SELinux: unrecognized netlink message: protocol=9 nlmsg_type=0 sclass=netlink_audit_socket pig=4323 comm=syz-executor2
device lo entered promiscuous mode
TCP: request_sock_TCP: Possible SYN flooding on port 20016. Sending cookies.  Check SNMP counters.
[drm:cirrus_gem_create] *ERROR* failed to allocate GEM object
[drm:cirrus_gem_create] *ERROR* failed to allocate GEM object
sg_write: data in/out 327644/2 bytes for SCSI command 0x1-- guessing data in;
   program syz-executor1 not setting count and/or reply_len properly
sg_write: data in/out 327644/2 bytes for SCSI command 0x1-- guessing data in;
   program syz-executor1 not setting count and/or reply_len properly
QAT: Invalid ioctl
QAT: Invalid ioctl
PF_BRIDGE: RTM_SETLINK with unknown ifindex
sctp: [Deprecated]: syz-executor0 (pid 4469) Use of int in maxseg socket option.
Use struct sctp_assoc_value instead
sctp: [Deprecated]: syz-executor0 (pid 4492) Use of int in maxseg socket option.
Use struct sctp_assoc_value instead
QAT: Invalid ioctl
QAT: Invalid ioctl
device lo entered promiscuous mode
device lo left promiscuous mode
device lo entered promiscuous mode
device lo left promiscuous mode
sctp: [Deprecated]: syz-executor3 (pid 4704) Use of struct sctp_assoc_value in delayed_ack socket option.
Use struct sctp_sack_info instead
sctp: [Deprecated]: syz-executor3 (pid 4724) Use of struct sctp_assoc_value in delayed_ack socket option.
Use struct sctp_sack_info instead
audit: type=1326 audit(1503893890.686:4): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=4845 comm="syz-executor2" exe="/syz-executor2" sig=31 arch=c000003e syscall=202 compat=0 ip=0x446749 code=0x0
*** Guest State ***
CR0: actual=0x0000000080000021, shadow=0x00000000e0000021, gh_mask=fffffffffffffff7
CR4: actual=0x0000000000002040, shadow=0x0000000000000000, gh_mask=ffffffffffffe871
CR3 = 0x0000000000000000
RSP = 0x0000000000000f80  RIP = 0x0000000000000000
RFLAGS=0x00000002         DR7 = 0x0000000000000400
Sysenter RSP=0000000000000000 CS:RIP=0000:0000000000000000
CS:   sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
DS:   sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
SS:   sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
ES:   sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
FS:   sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
GS:   sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
GDTR:                           limit=0x00000000, base=0x0000000000000000
LDTR: sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
IDTR:                           limit=0x00000000, base=0x0000000000000000
TR:   sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
EFER =     0x0000000000000000  PAT = 0x0007040600070406
DebugCtl = 0x0000000000000000  DebugExceptions = 0x0000000000000000
BndCfgS = 0x0000000000000000
Interruptibility = 00000000  ActivityState = 00000000
*** Host State ***
RIP = 0xffffffff811b8fd7  RSP = 0xffff8800675bf4c8
CS=0010 SS=0018 DS=0000 ES=0000 FS=0000 GS=0000 TR=0040
FSBase=00007f0d45f49700 GSBase=ffff88006df00000 TRBase=ffff88006df23100
GDTBase=ffffffffff574000 IDTBase=ffffffffff57b000
CR0=0000000080050033 CR3=000000003b2a7000 CR4=00000000000026e0
Sysenter RSP=0000000000000000 CS:RIP=0010:ffffffff84da5a70
EFER = 0x0000000000000d01  PAT = 0x0007040600070406
*** Control State ***
PinBased=0000003f CPUBased=b6986dfa SecondaryExec=000000e2
EntryControls=0001d1ff ExitControls=00afefff
ExceptionBitmap=00060042 PFECmask=00000000 PFECmatch=00000000
VMEntry: intr_info=00000000 errcode=00000000 ilen=00000000
VMExit: intr_info=00000000 errcode=00000000 ilen=00000000
        reason=80000021 qualification=0000000000000000
IDTVectoring: info=00000000 errcode=00000000
TSC Offset = 0xffffffdf90b6642e
EPT pointer = 0x000000006d20a01e
Virtual processor ID = 0x003d
*** Guest State ***
CR0: actual=0x0000000080000021, shadow=0x00000000e0000021, gh_mask=fffffffffffffff7
CR4: actual=0x0000000000002040, shadow=0x0000000000000000, gh_mask=ffffffffffffe871
CR3 = 0x0000000000000000
RSP = 0x0000000000000f80  RIP = 0x0000000000000000
RFLAGS=0x00000002         DR7 = 0x0000000000000400
Sysenter RSP=0000000000000000 CS:RIP=0000:0000000000000000
CS:   sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
DS:   sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
SS:   sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
ES:   sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
FS:   sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
GS:   sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
GDTR:                           limit=0x00000000, base=0x0000000000000000
LDTR: sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
IDTR:                           limit=0x00000000, base=0x0000000000000000
TR:   sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
EFER =     0x0000000000000000  PAT = 0x0007040600070406
DebugCtl = 0x0000000000000000  DebugExceptions = 0x0000000000000000
BndCfgS = 0x0000000000000000
Interruptibility = 00000000  ActivityState = 00000000
*** Host State ***
RIP = 0xffffffff811b8fd7  RSP = 0xffff88004ad2f4c8
CS=0010 SS=0018 DS=0000 ES=0000 FS=0000 GS=0000 TR=0040
FSBase=00007f0d45f06700 GSBase=ffff88003ec00000 TRBase=ffff88006df23100
GDTBase=ffffffffff574000 IDTBase=ffffffffff57b000
CR0=0000000080050033 CR3=000000003b2a7000 CR4=00000000000026f0
Sysenter RSP=0000000000000000 CS:RIP=0010:ffffffff84da5a70
EFER = 0x0000000000000d01  PAT = 0x0007040600070406
*** Control State ***
PinBased=0000003f CPUBased=b6986dfa SecondaryExec=000000e2
EntryControls=0001d1ff ExitControls=00afefff
ExceptionBitmap=00060042 PFECmask=00000000 PFECmatch=00000000
VMEntry: intr_info=00000000 errcode=00000000 ilen=00000000
VMExit: intr_info=00000000 errcode=00000000 ilen=00000000
        reason=80000021 qualification=0000000000000000
IDTVectoring: info=00000000 errcode=00000000
TSC Offset = 0xffffffdf84048382
EPT pointer = 0x000000003d8f001e
Virtual processor ID = 0x0001
ptm ptm1: ldisc open failed (-12), clearing slot 1
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=3 sclass=netlink_route_socket pig=4977 comm=syz-executor3
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=59666 sclass=netlink_route_socket pig=4984 comm=syz-executor7
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=59666 sclass=netlink_route_socket pig=4992 comm=syz-executor7
kvm: MONITOR instruction emulated as NOP!
syz-executor7: vmalloc: allocation failure: 4833356120 bytes, mode:0x14080c0(GFP_KERNEL|__GFP_ZERO), nodemask=(null)
syz-executor7 cpuset=/ mems_allowed=0-1
CPU: 0 PID: 5111 Comm: syz-executor7 Not tainted 4.13.0-rc6-next-20170825+ #9
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:16 [inline]
 dump_stack+0x194/0x257 lib/dump_stack.c:52
 warn_alloc+0x1c2/0x2f0 mm/page_alloc.c:3254
 __vmalloc_node_range+0x599/0x730 mm/vmalloc.c:1781
 __vmalloc_node mm/vmalloc.c:1810 [inline]
 __vmalloc_node_flags_caller+0x50/0x60 mm/vmalloc.c:1832
 kvmalloc_node+0x82/0xd0 mm/util.c:406
 kvmalloc include/linux/mm.h:529 [inline]
 kvmalloc_array include/linux/mm.h:545 [inline]
 xt_alloc_entry_offsets+0x21/0x30 net/netfilter/x_tables.c:774
 translate_table+0x235/0x1610 net/ipv4/netfilter/ip_tables.c:692
 do_replace net/ipv4/netfilter/ip_tables.c:1135 [inline]
 do_ipt_set_ctl+0x34b/0x5c0 net/ipv4/netfilter/ip_tables.c:1669
 nf_sockopt net/netfilter/nf_sockopt.c:105 [inline]
 nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:114
 ip_setsockopt+0xa1/0xb0 net/ipv4/ip_sockglue.c:1251
 tcp_setsockopt+0x82/0xd0 net/ipv4/tcp.c:2800
 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2970
 SYSC_setsockopt net/socket.c:1852 [inline]
 SyS_setsockopt+0x189/0x360 net/socket.c:1831
 entry_SYSCALL_64_fastpath+0x1f/0xbe
RIP: 0033:0x446749
RSP: 002b:00007faef88fac08 EFLAGS: 00000292 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 0000000000446749
RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000017
RBP: 0000000000000000 R08: 0000000000000056 R09: 0000000000000000
R10: 0000000020006000 R11: 0000000000000292 R12: 0000000000000000
R13: 0000000000000000 R14: 00007faef88fb9c0 R15: 00007faef88fb700
Mem-Info:
active_anon:105453 inactive_anon:45 isolated_anon:0
 active_file:3433 inactive_file:4798 isolated_file:0
 unevictable:0 dirty:135 writeback:0 unstable:0
 slab_reclaimable:6177 slab_unreclaimable:35169
 mapped:20848 shmem:54 pagetables:856 bounce:0
 free:237533 free_pcp:988 free_cma:0
Node 0 active_anon:131316kB inactive_anon:68kB active_file:6448kB inactive_file:3216kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:40280kB dirty:392kB writeback:0kB shmem:96kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 22528kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no
Node 1 active_anon:267924kB inactive_anon:112kB active_file:7284kB inactive_file:15988kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:43012kB dirty:160kB writeback:0kB shmem:120kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 32768kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no
Node 0 DMA free:15908kB min:640kB low:800kB high:960kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 886 886 886
Node 0 DMA32 free:633584kB min:36536kB low:45668kB high:54800kB active_anon:123296kB inactive_anon:68kB active_file:6448kB inactive_file:3216kB unevictable:0kB writepending:400kB present:1032192kB managed:909748kB mlocked:0kB kernel_stack:3712kB pagetables:1508kB bounce:0kB free_pcp:1996kB local_pcp:320kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0
Node 1 DMA32 free:326116kB min:30404kB low:38004kB high:45604kB active_anon:274132kB inactive_anon:112kB active_file:7284kB inactive_file:15988kB unevictable:0kB writepending:164kB present:1048560kB managed:755216kB mlocked:0kB kernel_stack:1728kB pagetables:1864kB bounce:0kB free_pcp:1788kB local_pcp:716kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0
Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB
Node 0 DMA32: 320*4kB (U) 275*8kB (UE) 782*16kB (UM) 282*32kB (UM) 101*64kB (UM) 22*128kB (UM) 13*256kB (UM) 6*512kB (UM) 1*1024kB (E) 1*2048kB (M) 144*4096kB (M) = 633592kB
Node 1 DMA32: 25*4kB (UME) 672*8kB (UME) 1689*16kB (UME) 1316*32kB (UME) 777*64kB (UME) 108*128kB (ME) 22*256kB (UM) 8*512kB (UM) 0*1024kB 1*2048kB (E) 43*4096kB (UM) = 326068kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
8288 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap  = 0kB
Total swap = 0kB
524186 pages RAM
0 pages HighMem/MovableOnly
103968 pages reserved
audit: type=1326 audit(1503893891.212:5): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=5122 comm="syz-executor1" exe="/syz-executor1" sig=31 arch=c000003e syscall=202 compat=0 ip=0x446749 code=0xffff0000
syz-executor7: vmalloc: allocation failure: 4833356120 bytes, mode:0x14080c0(GFP_KERNEL|__GFP_ZERO), nodemask=(null)
syz-executor7 cpuset=/ mems_allowed=0-1
CPU: 2 PID: 5117 Comm: syz-executor7 Not tainted 4.13.0-rc6-next-20170825+ #9
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:16 [inline]
 dump_stack+0x194/0x257 lib/dump_stack.c:52
 warn_alloc+0x1c2/0x2f0 mm/page_alloc.c:3254
 __vmalloc_node_range+0x599/0x730 mm/vmalloc.c:1781
 __vmalloc_node mm/vmalloc.c:1810 [inline]
 __vmalloc_node_flags_caller+0x50/0x60 mm/vmalloc.c:1832
 kvmalloc_node+0x82/0xd0 mm/util.c:406
 kvmalloc include/linux/mm.h:529 [inline]
 kvmalloc_array include/linux/mm.h:545 [inline]
 xt_alloc_entry_offsets+0x21/0x30 net/netfilter/x_tables.c:774
 translate_table+0x235/0x1610 net/ipv4/netfilter/ip_tables.c:692
 do_replace net/ipv4/netfilter/ip_tables.c:1135 [inline]
 do_ipt_set_ctl+0x34b/0x5c0 net/ipv4/netfilter/ip_tables.c:1669
 nf_sockopt net/netfilter/nf_sockopt.c:105 [inline]
 nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:114
 ip_setsockopt+0xa1/0xb0 net/ipv4/ip_sockglue.c:1251
 tcp_setsockopt+0x82/0xd0 net/ipv4/tcp.c:2800
 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2970
 SYSC_setsockopt net/socket.c:1852 [inline]
 SyS_setsockopt+0x189/0x360 net/socket.c:1831
 entry_SYSCALL_64_fastpath+0x1f/0xbe
RIP: 0033:0x446749
RSP: 002b:00007faef88d9c08 EFLAGS: 00000292 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 0000000000446749
RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000017
RBP: 0000000000a5f870 R08: 0000000000000056 R09: 0000000000000000
R10: 0000000020006000 R11: 0000000000000292 R12: 0000000000000000
R13: 0000000000000000 R14: 00007faef88da9c0 R15: 00007faef88da700
audit: type=1326 audit(1503893891.275:6): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=5122 comm="syz-executor1" exe="/syz-executor1" sig=31 arch=c000003e syscall=202 compat=0 ip=0x446749 code=0xffff0000
capability: warning: `syz-executor4' uses deprecated v2 capabilities in a way that may be insecure
audit: type=1326 audit(1503893891.897:7): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=5262 comm="syz-executor3" exe="/syz-executor3" sig=31 arch=c000003e syscall=202 compat=0 ip=0x446749 code=0x0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=65535 sclass=netlink_route_socket pig=5283 comm=syz-executor2
nla_parse: 20 callbacks suppressed
netlink: 52 bytes leftover after parsing attributes in process `syz-executor2'.
tc_ctl_action: received NO action attribs
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=65535 sclass=netlink_route_socket pig=5290 comm=syz-executor2
sctp: [Deprecated]: syz-executor4 (pid 5304) Use of int in maxseg socket option.
Use struct sctp_assoc_value instead
kvm [5279]: vcpu0, guest rIP: 0x9135 Hyper-V unhandled rdmsr: 0x4000008f
sctp: [Deprecated]: syz-executor4 (pid 5304) Use of int in maxseg socket option.
Use struct sctp_assoc_value instead
kvm [5279]: vcpu0, guest rIP: 0x9135 Hyper-V unhandled rdmsr: 0x4000008e
kvm [5279]: vcpu0, guest rIP: 0x9135 Hyper-V unhandled rdmsr: 0x4000008d
kvm [5279]: vcpu0, guest rIP: 0x9135 Hyper-V unhandled rdmsr: 0x4000008c
kvm [5279]: vcpu0, guest rIP: 0x9135 Hyper-V unhandled rdmsr: 0x4000008b
kvm [5279]: vcpu0, guest rIP: 0x9135 Hyper-V unhandled rdmsr: 0x4000008a
kvm [5279]: vcpu0, guest rIP: 0x9135 Hyper-V unhandled rdmsr: 0x40000089
kvm [5279]: vcpu0, guest rIP: 0x9135 Hyper-V unhandled rdmsr: 0x40000088
kvm [5279]: vcpu0, guest rIP: 0x9135 Hyper-V unhandled rdmsr: 0x40000087
kvm [5279]: vcpu0, guest rIP: 0x9135 Hyper-V unhandled rdmsr: 0x40000086
audit: type=1326 audit(1503893891.968:8): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=5262 comm="syz-executor3" exe="/syz-executor3" sig=31 arch=c000003e syscall=202 compat=0 ip=0x446749 code=0x0
kvm [5279]: vcpu0, guest rIP: 0x9112 Hyper-V uhandled wrmsr: 0x40000023 data 0x66c900003b9a1043
kvm [5279]: vcpu0, guest rIP: 0x9112 Hyper-V uhandled wrmsr: 0x40000022 data 0x66c90000cb211043
kvm [5279]: vcpu0, guest rIP: 0x9112 Hyper-V uhandled wrmsr: 0x40000023 data 0x66c900003b9a1043
kvm [5279]: vcpu0, guest rIP: 0x9112 Hyper-V uhandled wrmsr: 0x40000022 data 0x66c90000cb211043
kvm: vcpu 0: requested 316 ns lapic timer period limited to 500000 ns
*** Guest State ***
CR0: actual=0x0000000080000021, shadow=0x00000000e0000021, gh_mask=fffffffffffffff7
CR4: actual=0x0000000000002040, shadow=0x0000000000000000, gh_mask=ffffffffffffe871
CR3 = 0x0000000000000000
RSP = 0x0000000000000f80  RIP = 0x0000000000000000
RFLAGS=0x00000002         DR7 = 0x0000000000000400
Sysenter RSP=0000000000000000 CS:RIP=0000:0000000000000000
CS:   sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
DS:   sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
SS:   sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
ES:   sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
FS:   sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
GS:   sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
GDTR:                           limit=0x00000000, base=0x0000000000000000
LDTR: sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
IDTR:                           limit=0x00000000, base=0x0000000000000000
TR:   sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
EFER =     0x0000000000000000  PAT = 0x0007040600070406
DebugCtl = 0x0000000000000000  DebugExceptions = 0x0000000000000000
BndCfgS = 0x0000000000000000
Interruptibility = 00000000  ActivityState = 00000000
*** Host State ***
RIP = 0xffffffff811b8fd7  RSP = 0xffff88004e6df4c8
CS=0010 SS=0018 DS=0000 ES=0000 FS=0000 GS=0000 TR=0040
FSBase=00007f5b3dc8a700 GSBase=ffff88006de00000 TRBase=ffff88006de23100
GDTBase=ffffffffff575000 IDTBase=ffffffffff57b000
CR0=0000000080050033 CR3=000000003ce8d000 CR4=00000000000026e0
Sysenter RSP=0000000000000000 CS:RIP=0010:ffffffff84da5a70
EFER = 0x0000000000000d01  PAT = 0x0007040600070406
*** Control State ***
PinBased=0000003f CPUBased=b6986dfa SecondaryExec=000000e2
EntryControls=0001d1ff ExitControls=00afefff
ExceptionBitmap=00060042 PFECmask=00000000 PFECmatch=00000000
VMEntry: intr_info=00000000 errcode=00000000 ilen=00000000
VMExit: intr_info=00000000 errcode=00000000 ilen=00000000
        reason=80000021 qualification=0000000000000000
IDTVectoring: info=00000000 errcode=00000000
TSC Offset = 0xffffffde86cb48fc
EPT pointer = 0x00000000699e401e
Virtual processor ID = 0x0049
*** Guest State ***
CR0: actual=0x0000000080000021, shadow=0x00000000e0000021, gh_mask=fffffffffffffff7
CR4: actual=0x0000000000002060, shadow=0x0000000000000020, gh_mask=ffffffffffffe871
CR3 = 0x0000000000000000
PDPTR0 = 0x0000000000000000  PDPTR1 = 0x0000000000000000
PDPTR2 = 0x0000000000000000  PDPTR3 = 0x0000000000000000
RSP = 0x0000000000000f80  RIP = 0x0000000000000000
RFLAGS=0x00000002         DR7 = 0x0000000000000400
Sysenter RSP=0000000000000f80 CS:RIP=0050:0000000000002810
CS:   sel=0x0030, attr=0x0409b, limit=0x000fffff, base=0x0000000000000000
DS:   sel=0x0038, attr=0x04093, limit=0x000fffff, base=0x0000000000000000
SS:   sel=0x0038, attr=0x04093, limit=0x000fffff, base=0x0000000000000000
ES:   sel=0x0038, attr=0x04093, limit=0x000fffff, base=0x0000000000000000
FS:   sel=0x0038, attr=0x04093, limit=0x000fffff, base=0x0000000000000000
GS:   sel=0x0038, attr=0x04093, limit=0x000fffff, base=0x0000000000000000
GDTR:                           limit=0x000007ff, base=0x0000000000001000
LDTR: sel=0x0008, attr=0x04082, limit=0x000007ff, base=0x0000000000001800
IDTR:                           limit=0x000001ff, base=0x0000000000003800
TR:   sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
EFER =     0x0000000000000001  PAT = 0x0007040600070406
DebugCtl = 0x0000000000000000  DebugExceptions = 0x0000000000000000
BndCfgS = 0x0000000000000000
Interruptibility = 00000000  ActivityState = 00000000
*** Host State ***
RIP = 0xffffffff811b8fd7  RSP = 0xffff88004e6df4c8
CS=0010 SS=0018 DS=0000 ES=0000 FS=0000 GS=0000 TR=0040
FSBase=00007f5b3dc8a700 GSBase=ffff88006de00000 TRBase=ffff88006de23100
GDTBase=ffffffffff575000 IDTBase=ffffffffff57b000
CR0=0000000080050033 CR3=000000003ce8d000 CR4=00000000000026e0
Sysenter RSP=0000000000000000 CS:RIP=0010:ffffffff84da5a70
EFER = 0x0000000000000d01  PAT = 0x0007040600070406
*** Control State ***
PinBased=0000003f CPUBased=b6986dfa SecondaryExec=000000e2
EntryControls=0001d1ff ExitControls=00afefff
ExceptionBitmap=00060042 PFECmask=00000000 PFECmatch=00000000
VMEntry: intr_info=00000000 errcode=00000000 ilen=00000000
VMExit: intr_info=00000000 errcode=00000000 ilen=00000000
        reason=80000021 qualification=0000000000000000
IDTVectoring: info=00000000 errcode=00000000
TSC Offset = 0xffffffde86cb48fc
EPT pointer = 0x00000000699e401e
Virtual processor ID = 0x0049
*** Guest State ***
CR0: actual=0x0000000080000021, shadow=0x00000000e0000021, gh_mask=fffffffffffffff7
CR4: actual=0x0000000000002060, shadow=0x0000000000000020, gh_mask=ffffffffffffe871
CR3 = 0x0000000000000000
PDPTR0 = 0x0000000000000000  PDPTR1 = 0x0000000000000000
PDPTR2 = 0x0000000000000000  PDPTR3 = 0x0000000000000000
RSP = 0x0000000000000f80  RIP = 0x0000000000000000
RFLAGS=0x00000002         DR7 = 0x0000000000000400
Sysenter RSP=0000000000000f80 CS:RIP=0050:0000000000002810
CS:   sel=0x0000, attr=0x0409b, limit=0x000fffff, base=0x0000000000000000
DS:   sel=0x0038, attr=0x04093, limit=0x000fffff, base=0x0000000000000000
SS:   sel=0x0038, attr=0x04093, limit=0x000fffff, base=0x0000000000000000
ES:   sel=0x0038, attr=0x04093, limit=0x000fffff, base=0x0000000000000000
FS:   sel=0x0038, attr=0x04093, limit=0x000fffff, base=0x0000000000000000
GS:   sel=0x0038, attr=0x04093, limit=0x000fffff, base=0x0000000000000000
GDTR:                           limit=0x000007ff, base=0x0000000000001000
LDTR: sel=0x0008, attr=0x04082, limit=0x000007ff, base=0x0000000000001800
IDTR:                           limit=0x000001ff, base=0x0000000000003800
TR:   sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
EFER =     0x0000000000000001  PAT = 0x0007040600070406
DebugCtl = 0x0000000000000000  DebugExceptions = 0x0000000000000000
BndCfgS = 0x0000000000000000
Interruptibility = 00000000  ActivityState = 00000000
*** Host State ***
RIP = 0xffffffff811b8fd7  RSP = 0xffff88004e6df4c8
CS=0010 SS=0018 DS=0000 ES=0000 FS=0000 GS=0000 TR=0040
FSBase=00007f5b3dc8a700 GSBase=ffff88006de00000 TRBase=ffff88006de23100
GDTBase=ffffffffff575000 IDTBase=ffffffffff57b000
CR0=0000000080050033 CR3=000000003ce8d000 CR4=00000000000026e0
Sysenter RSP=0000000000000000 CS:RIP=0010:ffffffff84da5a70
EFER = 0x0000000000000d01  PAT = 0x0007040600070406
*** Control State ***
PinBased=0000003f CPUBased=b6986dfa SecondaryExec=000000e2
EntryControls=0001d1ff ExitControls=00afefff
ExceptionBitmap=00060042 PFECmask=00000000 PFECmatch=00000000
VMEntry: intr_info=00000000 errcode=00000000 ilen=00000000
VMExit: intr_info=00000000 errcode=00000000 ilen=00000000
        reason=80000021 qualification=0000000000000000
IDTVectoring: info=00000000 errcode=00000000
TSC Offset = 0xffffffde86cb48fc
EPT pointer = 0x00000000699e401e
Virtual processor ID = 0x0049
*** Guest State ***
CR0: actual=0x0000000080000021, shadow=0x00000000e0000021, gh_mask=fffffffffffffff7
CR4: actual=0x0000000000002060, shadow=0x0000000000000020, gh_mask=ffffffffffffe871
CR3 = 0x0000000000000000
PDPTR0 = 0x0000000000000000  PDPTR1 = 0x0000000000000000
PDPTR2 = 0x0000000000000000  PDPTR3 = 0x0000000000000000
RSP = 0x0000000000000f80  RIP = 0x0000000000000000
RFLAGS=0x00000002         DR7 = 0x0000000000000400
Sysenter RSP=0000000000000f80 CS:RIP=0050:0000000000002810
CS:   sel=0x0030, attr=0x0409b, limit=0x000fffff, base=0x0000000000000000
DS:   sel=0x0038, attr=0x04093, limit=0x000fffff, base=0x0000000000000000
SS:   sel=0x0038, attr=0x04093, limit=0x000fffff, base=0x0000000000000000
ES:   sel=0x0038, attr=0x04093, limit=0x000fffff, base=0x0000000000000000
FS:   sel=0x0038, attr=0x04093, limit=0x000fffff, base=0x0000000000000000
GS:   sel=0x0038, attr=0x04093, limit=0x000fffff, base=0x0000000000000000
GDTR:                           limit=0x000007ff, base=0x0000000000001000
LDTR: sel=0x0008, attr=0x04082, limit=0x000007ff, base=0x0000000000001800
IDTR:                           limit=0x000001ff, base=0x0000000000003800
TR:   sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000
EFER =     0x0000000000000001  PAT = 0x0007040600070406
DebugCtl = 0x0000000000000000  DebugExceptions = 0x0000000000000000
BndCfgS = 0x0000000000000000
Interruptibility = 00000000  ActivityState = 00000000
*** Host State ***
RIP = 0xffffffff811b8fd7  RSP = 0xffff88004e6df4c8
CS=0010 SS=0018 DS=0000 ES=0000 FS=0000 GS=0000 TR=0040
FSBase=00007f5b3dc8a700 GSBase=ffff88006de00000 TRBase=ffff88006de23100
GDTBase=ffffffffff575000 IDTBase=ffffffffff57b000
CR0=0000000080050033 CR3=000000003ce8d000 CR4=00000000000026e0
Sysenter RSP=0000000000000000 CS:RIP=0010:ffffffff84da5a70
EFER = 0x0000000000000d01  PAT = 0x0007040600070406
*** Control State ***
PinBased=0000003f CPUBased=b6986dfa SecondaryExec=000000e2
EntryControls=0001d1ff ExitControls=00afefff
ExceptionBitmap=00060042 PFECmask=00000000 PFECmatch=00000000
VMEntry: intr_info=00000000 errcode=00000000 ilen=00000000
VMExit: intr_info=00000000 errcode=00000000 ilen=00000000
        reason=80000021 qualification=0000000000000000
IDTVectoring: info=00000000 errcode=00000000
TSC Offset = 0xffffffde86cb48fc
EPT pointer = 0x00000000699e401e
Virtual processor ID = 0x0049
netlink: 1 bytes leftover after parsing attributes in process `syz-executor1'.
netlink: 1 bytes leftover after parsing attributes in process `syz-executor1'.
netlink: 1 bytes leftover after parsing attributes in process `syz-executor5'.
netlink: 1 bytes leftover after parsing attributes in process `syz-executor5'.
netlink: 8 bytes leftover after parsing attributes in process `syz-executor1'.
netlink: 8 bytes leftover after parsing attributes in process `syz-executor1'.
sctp: [Deprecated]: syz-executor0 (pid 5571) Use of struct sctp_assoc_value in delayed_ack socket option.
Use struct sctp_sack_info instead
QAT: Invalid ioctl
QAT: Invalid ioctl
SELinux: failure in selinux_parse_skb(), unable to parse packet
sctp: [Deprecated]: syz-executor0 (pid 5639) Use of struct sctp_assoc_value in delayed_ack socket option.
Use struct sctp_sack_info instead
QAT: Invalid ioctl
QAT: Invalid ioctl
Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
netlink: 11 bytes leftover after parsing attributes in process `syz-executor7'.
netlink: 9 bytes leftover after parsing attributes in process `syz-executor5'.
Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable
netlink: 11 bytes leftover after parsing attributes in process `syz-executor7'.
device syz4 entered promiscuous mode
audit: type=1326 audit(1503893892.784:9): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=5739 comm="syz-executor5" exe="/syz-executor5" sig=31 arch=c000003e syscall=202 compat=0 ip=0x446749 code=0xffff0000
device syz4 left promiscuous mode
device syz4 entered promiscuous mode
QAT: Invalid ioctl
kvm: pic: non byte write
kvm: pic: single mode not supported
audit: type=1326 audit(1503893892.860:10): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=5739 comm="syz-executor5" exe="/syz-executor5" sig=31 arch=c000003e syscall=202 compat=0 ip=0x446749 code=0xffff0000
kvm: pic: non byte write
kvm: pic: single mode not supported
QAT: Invalid ioctl
audit: type=1326 audit(1503893892.927:11): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=5829 comm="syz-executor5" exe="/syz-executor5" sig=31 arch=c000003e syscall=202 compat=0 ip=0x446749 code=0xffff0000
QAT: Invalid ioctl
QAT: Invalid ioctl
QAT: Invalid ioctl
QAT: Invalid ioctl
audit: type=1326 audit(1503893892.987:12): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=5829 comm="syz-executor5" exe="/syz-executor5" sig=31 arch=c000003e syscall=202 compat=0 ip=0x446749 code=0xffff0000
selinux_nlmsg_perm: 1 callbacks suppressed
SELinux: unrecognized netlink message: protocol=4 nlmsg_type=17 sclass=netlink_tcpdiag_socket pig=6064 comm=syz-executor7
SELinux: unrecognized netlink message: protocol=4 nlmsg_type=17 sclass=netlink_tcpdiag_socket pig=6067 comm=syz-executor7
sg_write: data in/out 213971796/79 bytes for SCSI command 0x0-- guessing data in;
   program syz-executor3 not setting count and/or reply_len properly
QAT: Invalid ioctl
QAT: Invalid ioctl
QAT: Invalid ioctl
QAT: Invalid ioctl
QAT: Invalid ioctl
QAT: Invalid ioctl
QAT: Invalid ioctl
QAT: Invalid ioctl
sock: process `syz-executor4' is using obsolete setsockopt SO_BSDCOMPAT
sctp: [Deprecated]: syz-executor4 (pid 6261) Use of int in max_burst socket option deprecated.
Use struct sctp_assoc_value instead
sctp: [Deprecated]: syz-executor4 (pid 6290) Use of int in max_burst socket option deprecated.
Use struct sctp_assoc_value instead
audit: type=1326 audit(1503893894.748:13): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=6333 comm="syz-executor7" exe="/syz-executor7" sig=31 arch=c000003e syscall=202 compat=0 ip=0x446749 code=0xffff0000
QAT: Invalid ioctl
QAT: Invalid ioctl
sg_write: data in/out 327773/154 bytes for SCSI command 0x53-- guessing data in;
   program syz-executor4 not setting count and/or reply_len properly
device lo entered promiscuous mode
IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready
sg_write: data in/out 327773/154 bytes for SCSI command 0x53-- guessing data in;
   program syz-executor4 not setting count and/or reply_len properly
loop_reread_partitions: partition scan of loop0 (t?`JzP[ p>TK6C="L l!V#F-') failed (rc=-13)
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=123 sclass=netlink_route_socket pig=6790 comm=syz-executor6
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=6790 comm=syz-executor6
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=123 sclass=netlink_route_socket pig=6819 comm=syz-executor6
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=6812 comm=syz-executor6
TCP: request_sock_TCP: Possible SYN flooding on port 20018. Sending cookies.  Check SNMP counters.
QAT: Invalid ioctl
QAT: Invalid ioctl
QAT: Invalid ioctl
QAT: Invalid ioctl
QAT: Invalid ioctl
audit: type=1326 audit(1503893896.565:14): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=7086 comm="syz-executor3" exe="/syz-executor3" sig=31 arch=c000003e syscall=202 compat=0 ip=0x446749 code=0xffff0000
?: renamed from sit0
audit: type=1326 audit(1503893896.707:15): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=7167 comm="syz-executor2" exe="/syz-executor2" sig=9 arch=c000003e syscall=202 compat=0 ip=0x446749 code=0x0
audit: type=1326 audit(1503893896.771:16): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=7167 comm="syz-executor2" exe="/syz-executor2" sig=9 arch=c000003e syscall=202 compat=0 ip=0x446749 code=0x0

Crashes (5):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2017/08/28 04:18 linux-next 7159188b70e3 4074aed7 .config console log report ci-upstream-next-kasan-gce
2017/08/27 14:46 linux-next 7159188b70e3 4074aed7 .config console log report skylake-linux-next-kasan-qemu
2017/08/25 21:23 linux-next 7159188b70e3 4074aed7 .config console log report ci-upstream-next-kasan-gce
2017/08/25 19:42 linux-next 7159188b70e3 4074aed7 .config console log report ci-upstream-next-kasan-gce
2017/08/23 11:13 linux-next cc6d46bb99b5 f238fbd4 .config console log report ci-upstream-next-kasan-gce
* Struck through repros no longer work on HEAD.