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: [] __dump_stack /syzkaller/managers/android-44-kasan-gce/kernel/lib/dump_stack.c:15 [inline] [] dump_stack+0x8e/0xcf /syzkaller/managers/android-44-kasan-gce/kernel/lib/dump_stack.c:51 [] check_preemption_disabled+0x1b8/0x1f0 /syzkaller/managers/android-44-kasan-gce/kernel/lib/smp_processor_id.c:46 [] __this_cpu_preempt_check+0x13/0x20 /syzkaller/managers/android-44-kasan-gce/kernel/lib/smp_processor_id.c:62 [] tcp_try_coalesce+0x200/0x4b0 /syzkaller/managers/android-44-kasan-gce/kernel/net/ipv4/tcp_input.c:4278 [] tcp_queue_rcv+0xfe/0x720 /syzkaller/managers/android-44-kasan-gce/kernel/net/ipv4/tcp_input.c:4485 [] tcp_send_rcvq+0x391/0x4a0 /syzkaller/managers/android-44-kasan-gce/kernel/net/ipv4/tcp_input.c:4531 [] tcp_sendmsg+0x1d1c/0x36a0 /syzkaller/managers/android-44-kasan-gce/kernel/net/ipv4/tcp.c:1134 [] inet_sendmsg+0x26c/0x430 /syzkaller/managers/android-44-kasan-gce/kernel/net/ipv4/af_inet.c:755 [] sock_sendmsg_nosec /syzkaller/managers/android-44-kasan-gce/kernel/net/socket.c:625 [inline] [] sock_sendmsg+0xb5/0xf0 /syzkaller/managers/android-44-kasan-gce/kernel/net/socket.c:635 [] SYSC_sendto+0x267/0x300 /syzkaller/managers/android-44-kasan-gce/kernel/net/socket.c:1665 [] SyS_sendto+0x9/0x10 /syzkaller/managers/android-44-kasan-gce/kernel/net/socket.c:1633 [] 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: [] __dump_stack /syzkaller/managers/android-44-kasan-gce/kernel/lib/dump_stack.c:15 [inline] [] dump_stack+0x8e/0xcf /syzkaller/managers/android-44-kasan-gce/kernel/lib/dump_stack.c:51 [] handle_userfault+0x75b/0x1570 /syzkaller/managers/android-44-kasan-gce/kernel/fs/userfaultfd.c:316 [] do_anonymous_page /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:2731 [inline] [] handle_pte_fault /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:3295 [inline] [] __handle_mm_fault /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:3426 [inline] [] handle_mm_fault+0x2731/0x39b0 /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:3455 [] __do_page_fault+0x2d0/0x910 /syzkaller/managers/android-44-kasan-gce/kernel/arch/x86/mm/fault.c:1245 [] do_page_fault+0x22/0x30 /syzkaller/managers/android-44-kasan-gce/kernel/arch/x86/mm/fault.c:1308 [] page_fault+0x28/0x30 /syzkaller/managers/android-44-kasan-gce/kernel/arch/x86/entry/entry_64.S:985 [] vfs_ioctl /syzkaller/managers/android-44-kasan-gce/kernel/fs/ioctl.c:43 [inline] [] do_vfs_ioctl+0x681/0xe10 /syzkaller/managers/android-44-kasan-gce/kernel/fs/ioctl.c:607 [] SYSC_ioctl /syzkaller/managers/android-44-kasan-gce/kernel/fs/ioctl.c:622 [inline] [] SyS_ioctl+0x74/0x80 /syzkaller/managers/android-44-kasan-gce/kernel/fs/ioctl.c:613 [] 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: [] __dump_stack /syzkaller/managers/android-44-kasan-gce/kernel/lib/dump_stack.c:15 [inline] [] dump_stack+0x8e/0xcf /syzkaller/managers/android-44-kasan-gce/kernel/lib/dump_stack.c:51 [] handle_userfault+0x75b/0x1570 /syzkaller/managers/android-44-kasan-gce/kernel/fs/userfaultfd.c:316 [] do_anonymous_page /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:2731 [inline] [] handle_pte_fault /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:3295 [inline] [] __handle_mm_fault /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:3426 [inline] [] handle_mm_fault+0x2731/0x39b0 /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:3455 [] __do_page_fault+0x2d0/0x910 /syzkaller/managers/android-44-kasan-gce/kernel/arch/x86/mm/fault.c:1245 [] do_page_fault+0x22/0x30 /syzkaller/managers/android-44-kasan-gce/kernel/arch/x86/mm/fault.c:1308 [] page_fault+0x28/0x30 /syzkaller/managers/android-44-kasan-gce/kernel/arch/x86/entry/entry_64.S:985 [] 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: [] __dump_stack /syzkaller/managers/android-44-kasan-gce/kernel/lib/dump_stack.c:15 [inline] [] dump_stack+0x8e/0xcf /syzkaller/managers/android-44-kasan-gce/kernel/lib/dump_stack.c:51 [] handle_userfault+0x75b/0x1570 /syzkaller/managers/android-44-kasan-gce/kernel/fs/userfaultfd.c:316 [] do_anonymous_page /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:2731 [inline] [] handle_pte_fault /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:3295 [inline] [] __handle_mm_fault /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:3426 [inline] [] handle_mm_fault+0x2731/0x39b0 /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:3455 [] __do_page_fault+0x2d0/0x910 /syzkaller/managers/android-44-kasan-gce/kernel/arch/x86/mm/fault.c:1245 [] do_page_fault+0x22/0x30 /syzkaller/managers/android-44-kasan-gce/kernel/arch/x86/mm/fault.c:1308 [] page_fault+0x28/0x30 /syzkaller/managers/android-44-kasan-gce/kernel/arch/x86/entry/entry_64.S:985 [] vfs_ioctl /syzkaller/managers/android-44-kasan-gce/kernel/fs/ioctl.c:43 [inline] [] do_vfs_ioctl+0x681/0xe10 /syzkaller/managers/android-44-kasan-gce/kernel/fs/ioctl.c:607 [] SYSC_ioctl /syzkaller/managers/android-44-kasan-gce/kernel/fs/ioctl.c:622 [inline] [] SyS_ioctl+0x74/0x80 /syzkaller/managers/android-44-kasan-gce/kernel/fs/ioctl.c:613 [] 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: [] __dump_stack /syzkaller/managers/android-44-kasan-gce/kernel/lib/dump_stack.c:15 [inline] [] dump_stack+0x8e/0xcf /syzkaller/managers/android-44-kasan-gce/kernel/lib/dump_stack.c:51 [] handle_userfault+0x75b/0x1570 /syzkaller/managers/android-44-kasan-gce/kernel/fs/userfaultfd.c:316 [] do_anonymous_page /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:2731 [inline] [] handle_pte_fault /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:3295 [inline] [] __handle_mm_fault /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:3426 [inline] [] handle_mm_fault+0x2731/0x39b0 /syzkaller/managers/android-44-kasan-gce/kernel/mm/memory.c:3455 [] __do_page_fault+0x2d0/0x910 /syzkaller/managers/android-44-kasan-gce/kernel/arch/x86/mm/fault.c:1245 [] do_page_fault+0x22/0x30 /syzkaller/managers/android-44-kasan-gce/kernel/arch/x86/mm/fault.c:1308 [] page_fault+0x28/0x30 /syzkaller/managers/android-44-kasan-gce/kernel/arch/x86/entry/entry_64.S:985 [] 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'.