BUG: using __this_cpu_add() in preemptible [00000000] code: syz-executor7/14584
caller is __this_cpu_preempt_check+0x13/0x20 /syzkaller/managers/android-44-kasan-gce/kernel/lib/smp_processor_id.c:62
CPU: 0 PID: 14584 Comm: syz-executor7 Not tainted 4.4.105-g36205b7 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 7ec90598676e5395 ffff8800b6217828 ffffffff81cc9b4f
 0000000000000000 ffffffff839fd4a0 ffff8800b6217868 ffffffff81d28d58
 ffffffff83ced1a0 1ffff10016c42f14 ffff8800b48cc000 ffff8800b48cc6c0
Call Trace:
 [<ffffffff81cc9b4f>] __dump_stack /syzkaller/managers/android-44-kasan-gce/kernel/lib/dump_stack.c:15 [inline]
 [<ffffffff81cc9b4f>] dump_stack+0x8e/0xcf /syzkaller/managers/android-44-kasan-gce/kernel/lib/dump_stack.c:51
 [<ffffffff81d28d58>] check_preemption_disabled+0x1b8/0x1f0 /syzkaller/managers/android-44-kasan-gce/kernel/lib/smp_processor_id.c:46
 [<ffffffff81d28dc3>] __this_cpu_preempt_check+0x13/0x20 /syzkaller/managers/android-44-kasan-gce/kernel/lib/smp_processor_id.c:62
 [<ffffffff830dc180>] tcp_try_coalesce+0x200/0x4b0 /syzkaller/managers/android-44-kasan-gce/kernel/net/ipv4/tcp_input.c:4278
 [<ffffffff830e5c6e>] tcp_queue_rcv+0xfe/0x720 /syzkaller/managers/android-44-kasan-gce/kernel/net/ipv4/tcp_input.c:4485
 [<ffffffff830ffed1>] tcp_send_rcvq+0x391/0x4a0 /syzkaller/managers/android-44-kasan-gce/kernel/net/ipv4/tcp_input.c:4531
 [<ffffffff830d20cc>] tcp_sendmsg+0x1d1c/0x36a0 /syzkaller/managers/android-44-kasan-gce/kernel/net/ipv4/tcp.c:1134
 [<ffffffff8319024c>] inet_sendmsg+0x26c/0x430 /syzkaller/managers/android-44-kasan-gce/kernel/net/ipv4/af_inet.c:755
 [<ffffffff82d94005>] sock_sendmsg_nosec /syzkaller/managers/android-44-kasan-gce/kernel/net/socket.c:625 [inline]
 [<ffffffff82d94005>] sock_sendmsg+0xb5/0xf0 /syzkaller/managers/android-44-kasan-gce/kernel/net/socket.c:635
 [<ffffffff82d94e47>] SYSC_sendto+0x267/0x300 /syzkaller/managers/android-44-kasan-gce/kernel/net/socket.c:1665
 [<ffffffff82d97179>] SyS_sendto+0x9/0x10 /syzkaller/managers/android-44-kasan-gce/kernel/net/socket.c:1633
 [<ffffffff8374ab36>] entry_SYSCALL_64_fastpath+0x16/0x76
audit: type=1400 audit(1513080086.933:20): avc:  denied  { create } for  pid=14972 comm="syz-executor6" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_iscsi_socket permissive=1
audit: type=1400 audit(1513080086.953:21): avc:  denied  { setopt } for  pid=14978 comm="syz-executor0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1
netlink: 3 bytes leftover after parsing attributes in process `syz-executor0'.
netlink: 3 bytes leftover after parsing attributes in process `syz-executor0'.
netlink: 3 bytes leftover after parsing attributes in process `syz-executor6'.
netlink: 3 bytes leftover after parsing attributes in process `syz-executor6'.
device lo left promiscuous mode
binder: 15905:15906 got transaction with invalid parent offset or type
binder: 15905:15906 transaction failed 29201/-22, size 80-16 line 3316
binder_alloc: binder_alloc_mmap_handler: 15905 20000000-20002000 already mapped failed -16
binder: BINDER_SET_CONTEXT_MGR already set
binder: 15905:15906 ioctl 40046207 0 returned -16
binder_alloc: 15905: binder_alloc_buf, no vma
binder: 15905:15928 transaction failed 29189/-3, size 80-16 line 3131
binder: undelivered TRANSACTION_ERROR: 29189
binder: undelivered TRANSACTION_ERROR: 29201
netlink: 3 bytes leftover after parsing attributes in process `syz-executor7'.
netlink: 3 bytes leftover after parsing attributes in process `syz-executor7'.
FAULT_FLAG_ALLOW_RETRY missing 30
FAULT_FLAG_ALLOW_RETRY missing 30
CPU: 1 PID: 16113 Comm: syz-executor0 Not tainted 4.4.105-g36205b7 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 dc11910a6d699e97 ffff8800b1c476e0 ffffffff81cc9b4f
 1ffff10016388ee7 0000000000000030 ffff8800b1c47880 ffffffff815db71b
 ffff8800b922d6e0 ffff8800b922d6e0 ffff8800b922d6e0 ffff8800b1c47858
Call Trace:
 [<ffffffff81cc9b4f>] __dump_stack /syzkaller/managers/android-44-kasan-gce/kernel/lib/dump_stack.c:15 [inline]
 [<ffffffff81cc9b4f>] dump_stack+0x8e/0xcf /syzkaller/managers/android-44-kasan-gce/kernel/lib/dump_stack.c:51
 [<ffffffff815db71b>] handle_userfault+0x75b/0x1570 /syzkaller/managers/android-44-kasan-gce/kernel/fs/userfaultfd.c:316
 [<ffffffff81481ec1>] do_anonymous_page /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:2731 [inline]
 [<ffffffff81481ec1>] handle_pte_fault /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:3295 [inline]
 [<ffffffff81481ec1>] __handle_mm_fault /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:3426 [inline]
 [<ffffffff81481ec1>] handle_mm_fault+0x2731/0x39b0 /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:3455
 [<ffffffff810d7b90>] __do_page_fault+0x2d0/0x910 /syzkaller/managers/android-44-kasan-gce/kernel/arch/x86/mm/fault.c:1245
 [<ffffffff810d81f2>] do_page_fault+0x22/0x30 /syzkaller/managers/android-44-kasan-gce/kernel/arch/x86/mm/fault.c:1308
 [<ffffffff8374cc18>] page_fault+0x28/0x30 /syzkaller/managers/android-44-kasan-gce/kernel/arch/x86/entry/entry_64.S:985
 [<ffffffff81532b31>] vfs_ioctl /syzkaller/managers/android-44-kasan-gce/kernel/fs/ioctl.c:43 [inline]
 [<ffffffff81532b31>] do_vfs_ioctl+0x681/0xe10 /syzkaller/managers/android-44-kasan-gce/kernel/fs/ioctl.c:607
 [<ffffffff81533334>] SYSC_ioctl /syzkaller/managers/android-44-kasan-gce/kernel/fs/ioctl.c:622 [inline]
 [<ffffffff81533334>] SyS_ioctl+0x74/0x80 /syzkaller/managers/android-44-kasan-gce/kernel/fs/ioctl.c:613
 [<ffffffff8374ab36>] entry_SYSCALL_64_fastpath+0x16/0x76
CPU: 0 PID: 16123 Comm: syz-executor0 Not tainted 4.4.105-g36205b7 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 91f5205c7e353faf ffff8801d7177a10 ffffffff81cc9b4f
 1ffff1003ae2ef4d 0000000000000030 ffff8801d7177bb0 ffffffff815db71b
 ffff8800b922d6e0 ffff8800b922d6e0 ffff8800b922d6e0 ffff8801d7177b88
Call Trace:
 [<ffffffff81cc9b4f>] __dump_stack /syzkaller/managers/android-44-kasan-gce/kernel/lib/dump_stack.c:15 [inline]
 [<ffffffff81cc9b4f>] dump_stack+0x8e/0xcf /syzkaller/managers/android-44-kasan-gce/kernel/lib/dump_stack.c:51
 [<ffffffff815db71b>] handle_userfault+0x75b/0x1570 /syzkaller/managers/android-44-kasan-gce/kernel/fs/userfaultfd.c:316
 [<ffffffff81481ec1>] do_anonymous_page /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:2731 [inline]
 [<ffffffff81481ec1>] handle_pte_fault /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:3295 [inline]
 [<ffffffff81481ec1>] __handle_mm_fault /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:3426 [inline]
 [<ffffffff81481ec1>] handle_mm_fault+0x2731/0x39b0 /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:3455
 [<ffffffff810d7b90>] __do_page_fault+0x2d0/0x910 /syzkaller/managers/android-44-kasan-gce/kernel/arch/x86/mm/fault.c:1245
 [<ffffffff810d81f2>] do_page_fault+0x22/0x30 /syzkaller/managers/android-44-kasan-gce/kernel/arch/x86/mm/fault.c:1308
 [<ffffffff8374cc18>] page_fault+0x28/0x30 /syzkaller/managers/android-44-kasan-gce/kernel/arch/x86/entry/entry_64.S:985
 [<ffffffff8374ab36>] entry_SYSCALL_64_fastpath+0x16/0x76
FAULT_FLAG_ALLOW_RETRY missing 30
FAULT_FLAG_ALLOW_RETRY missing 30
CPU: 0 PID: 16123 Comm: syz-executor0 Not tainted 4.4.105-g36205b7 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 91f5205c7e353faf ffff8801d71776e0 ffffffff81cc9b4f
 1ffff1003ae2eee7 0000000000000030 ffff8801d7177880 ffffffff815db71b
 ffff8800b922d6e0 ffff8800b922d6e0 ffff8800b922d6e0 ffff8801d7177858
Call Trace:
 [<ffffffff81cc9b4f>] __dump_stack /syzkaller/managers/android-44-kasan-gce/kernel/lib/dump_stack.c:15 [inline]
 [<ffffffff81cc9b4f>] dump_stack+0x8e/0xcf /syzkaller/managers/android-44-kasan-gce/kernel/lib/dump_stack.c:51
 [<ffffffff815db71b>] handle_userfault+0x75b/0x1570 /syzkaller/managers/android-44-kasan-gce/kernel/fs/userfaultfd.c:316
 [<ffffffff81481ec1>] do_anonymous_page /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:2731 [inline]
 [<ffffffff81481ec1>] handle_pte_fault /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:3295 [inline]
 [<ffffffff81481ec1>] __handle_mm_fault /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:3426 [inline]
 [<ffffffff81481ec1>] handle_mm_fault+0x2731/0x39b0 /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:3455
 [<ffffffff810d7b90>] __do_page_fault+0x2d0/0x910 /syzkaller/managers/android-44-kasan-gce/kernel/arch/x86/mm/fault.c:1245
 [<ffffffff810d81f2>] do_page_fault+0x22/0x30 /syzkaller/managers/android-44-kasan-gce/kernel/arch/x86/mm/fault.c:1308
 [<ffffffff8374cc18>] page_fault+0x28/0x30 /syzkaller/managers/android-44-kasan-gce/kernel/arch/x86/entry/entry_64.S:985
 [<ffffffff81532b31>] vfs_ioctl /syzkaller/managers/android-44-kasan-gce/kernel/fs/ioctl.c:43 [inline]
 [<ffffffff81532b31>] do_vfs_ioctl+0x681/0xe10 /syzkaller/managers/android-44-kasan-gce/kernel/fs/ioctl.c:607
 [<ffffffff81533334>] SYSC_ioctl /syzkaller/managers/android-44-kasan-gce/kernel/fs/ioctl.c:622 [inline]
 [<ffffffff81533334>] SyS_ioctl+0x74/0x80 /syzkaller/managers/android-44-kasan-gce/kernel/fs/ioctl.c:613
 [<ffffffff8374ab36>] entry_SYSCALL_64_fastpath+0x16/0x76
CPU: 0 PID: 16113 Comm: syz-executor0 Not tainted 4.4.105-g36205b7 #4
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 0000000000000000 dc11910a6d699e97 ffff8800b1c47a10 ffffffff81cc9b4f
 1ffff10016388f4d 0000000000000030 ffff8800b1c47bb0 ffffffff815db71b
 ffff8800b922d6e0 ffff8800b922d6e0 ffff8800b922d6e0 ffff8800b1c47b88
Call Trace:
 [<ffffffff81cc9b4f>] __dump_stack /syzkaller/managers/android-44-kasan-gce/kernel/lib/dump_stack.c:15 [inline]
 [<ffffffff81cc9b4f>] dump_stack+0x8e/0xcf /syzkaller/managers/android-44-kasan-gce/kernel/lib/dump_stack.c:51
 [<ffffffff815db71b>] handle_userfault+0x75b/0x1570 /syzkaller/managers/android-44-kasan-gce/kernel/fs/userfaultfd.c:316
 [<ffffffff81481ec1>] do_anonymous_page /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:2731 [inline]
 [<ffffffff81481ec1>] handle_pte_fault /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:3295 [inline]
 [<ffffffff81481ec1>] __handle_mm_fault /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:3426 [inline]
 [<ffffffff81481ec1>] handle_mm_fault+0x2731/0x39b0 /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:3455
 [<ffffffff810d7b90>] __do_page_fault+0x2d0/0x910 /syzkaller/managers/android-44-kasan-gce/kernel/arch/x86/mm/fault.c:1245
 [<ffffffff810d81f2>] do_page_fault+0x22/0x30 /syzkaller/managers/android-44-kasan-gce/kernel/arch/x86/mm/fault.c:1308
 [<ffffffff8374cc18>] page_fault+0x28/0x30 /syzkaller/managers/android-44-kasan-gce/kernel/arch/x86/entry/entry_64.S:985
 [<ffffffff8374ab36>] entry_SYSCALL_64_fastpath+0x16/0x76
binder: 16232:16239 got transaction with invalid parent offset or type
binder: 16232:16239 transaction failed 29201/-22, size 80-16 line 3316
binder_alloc: binder_alloc_mmap_handler: 16232 20000000-20002000 already mapped failed -16
binder: BINDER_SET_CONTEXT_MGR already set
binder_alloc: 16232: binder_alloc_buf, no vma
binder: 16232:16239 ioctl 40046207 0 returned -16
binder: 16232:16253 transaction failed 29189/-3, size 80-16 line 3131
binder: undelivered TRANSACTION_ERROR: 29189
binder: undelivered TRANSACTION_ERROR: 29201
binder: 16373:16378 got transaction with too large buffer
binder: 16373:16378 transaction failed 29201/-22, size 80-16 line 3290
binder: BINDER_SET_CONTEXT_MGR already set
binder: 16373:16396 ioctl 40046207 0 returned -16
audit: type=1400 audit(1513080091.453:22): avc:  denied  { create } for  pid=16434 comm="syz-executor6" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_rdma_socket permissive=1
binder: undelivered TRANSACTION_ERROR: 29201
device lo entered promiscuous mode
SELinux: unrecognized netlink message: protocol=6 nlmsg_type=58 sclass=netlink_xfrm_socket
audit: type=1400 audit(1513080091.943:23): avc:  denied  { getopt } for  pid=16586 comm="syz-executor3" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1
SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket
audit: type=1400 audit(1513080092.573:24): avc:  denied  { accept } for  pid=16789 comm="syz-executor2" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1
SELinux: unrecognized netlink message: protocol=6 nlmsg_type=58 sclass=netlink_xfrm_socket
SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket
netlink: 3 bytes leftover after parsing attributes in process `syz-executor3'.
netlink: 3 bytes leftover after parsing attributes in process `syz-executor3'.
audit: type=1400 audit(1513080093.703:25): avc:  denied  { ioctl } for  pid=17207 comm="syz-executor3" path="socket:[24978]" dev="sockfs" ino=24978 ioctlcmd=5411 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1
qtaguid: iface_stat: iface_check_stats_reset_and_adjust(lo): iface reset its stats unexpectedly
netlink: 2 bytes leftover after parsing attributes in process `syz-executor5'.
netlink: 2 bytes leftover after parsing attributes in process `syz-executor5'.
binder: 17565:17577 got transaction with invalid parent offset or type
binder: 17565:17577 transaction failed 29201/-22, size 80-16 line 3316
binder: BINDER_SET_CONTEXT_MGR already set
binder_alloc: binder_alloc_mmap_handler: 17565 20000000-20002000 already mapped failed -16
binder: 17565:17601 ioctl 40046207 0 returned -16
SELinux: unrecognized netlink message: protocol=6 nlmsg_type=58 sclass=netlink_xfrm_socket
binder: undelivered TRANSACTION_ERROR: 29201
SELinux: unrecognized netlink message: protocol=6 nlmsg_type=58 sclass=netlink_xfrm_socket
SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket
SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket
netlink: 17 bytes leftover after parsing attributes in process `syz-executor4'.
netlink: 17 bytes leftover after parsing attributes in process `syz-executor4'.
netlink: 17 bytes leftover after parsing attributes in process `syz-executor2'.