QAT: Invalid ioctl ====================================================== WARNING: possible circular locking dependency detected 4.13.0-next-20170913+ #21 Not tainted QAT: Invalid ioctl ------------------------------------------------------ QAT: Invalid ioctl QAT: Invalid ioctl syz-executor2/3711 is trying to acquire lock: (event_mutex){+.+.}, at: [] perf_trace_init+0x58/0xab0 kernel/trace/trace_event_perf.c:216 but task is already holding lock: (&ctx->mutex){+.+.}, at: [] perf_event_init_context kernel/events/core.c:10965 [inline] (&ctx->mutex){+.+.}, at: [] perf_event_init_task+0x25b/0x890 kernel/events/core.c:11040 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #8 (&ctx->mutex){+.+.}: check_prevs_add kernel/locking/lockdep.c:2020 [inline] validate_chain kernel/locking/lockdep.c:2469 [inline] __lock_acquire+0x328f/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 perf_event_ctx_lock_nested+0x1dc/0x3c0 kernel/events/core.c:1210 perf_event_ctx_lock kernel/events/core.c:1223 [inline] perf_read+0xb9/0x970 kernel/events/core.c:4584 do_loop_readv_writev fs/read_write.c:693 [inline] do_iter_read+0x3db/0x5b0 fs/read_write.c:917 vfs_readv+0x121/0x1c0 fs/read_write.c:979 kernel_readv fs/splice.c:361 [inline] default_file_splice_read+0x508/0xae0 fs/splice.c:416 do_splice_to+0x110/0x170 fs/splice.c:880 do_splice fs/splice.c:1173 [inline] SYSC_splice fs/splice.c:1402 [inline] SyS_splice+0x11a8/0x1630 fs/splice.c:1382 entry_SYSCALL_64_fastpath+0x1f/0xbe -> #7 (&pipe->mutex/1){+.+.}: check_prevs_add kernel/locking/lockdep.c:2020 [inline] validate_chain kernel/locking/lockdep.c:2469 [inline] __lock_acquire+0x328f/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 pipe_lock_nested fs/pipe.c:66 [inline] pipe_lock+0x56/0x70 fs/pipe.c:74 iter_file_splice_write+0x264/0xf50 fs/splice.c:699 do_splice_from fs/splice.c:851 [inline] do_splice fs/splice.c:1147 [inline] SYSC_splice fs/splice.c:1402 [inline] SyS_splice+0x7d5/0x1630 fs/splice.c:1382 entry_SYSCALL_64_fastpath+0x1f/0xbe -> #6 (sb_writers){.+.+}: percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:35 [inline] percpu_down_read include/linux/percpu-rwsem.h:58 [inline] __sb_start_write+0x18f/0x290 fs/super.c:1341 sb_start_write include/linux/fs.h:1541 [inline] mnt_want_write+0x3f/0xb0 fs/namespace.c:387 filename_create+0x12b/0x520 fs/namei.c:3628 kern_path_create+0x33/0x40 fs/namei.c:3674 handle_create+0xc0/0x760 drivers/base/devtmpfs.c:203 -> #5 ((complete)&req.done){+.+.}: check_prevs_add kernel/locking/lockdep.c:2020 [inline] validate_chain kernel/locking/lockdep.c:2469 [inline] __lock_acquire+0x328f/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 devtmpfs_create_node+0x32b/0x4a0 drivers/base/devtmpfs.c:115 device_add+0x120f/0x1640 drivers/base/core.c:1824 device_create_groups_vargs+0x1f3/0x250 drivers/base/core.c:2430 device_create_vargs drivers/base/core.c:2470 [inline] device_create+0xda/0x110 drivers/base/core.c:2506 msr_device_create+0x26/0x40 arch/x86/kernel/msr.c:188 cpuhp_invoke_callback+0x256/0x14d0 kernel/cpu.c:145 cpuhp_thread_fun+0x265/0x520 kernel/cpu.c:434 smpboot_thread_fn+0x489/0x850 kernel/smpboot.c:164 kthread+0x39c/0x470 kernel/kthread.c:231 ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:431 -> #4 (cpuhp_state){+.+.}: check_prevs_add kernel/locking/lockdep.c:2020 [inline] validate_chain kernel/locking/lockdep.c:2469 [inline] __lock_acquire+0x328f/0x4620 kernel/locking/lockdep.c:3498 lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4002 cpuhp_invoke_ap_callback kernel/cpu.c:467 [inline] cpuhp_issue_call+0x1a2/0x3e0 kernel/cpu.c:1308 __cpuhp_setup_state_cpuslocked+0x2d6/0x5f0 kernel/cpu.c:1455 __cpuhp_setup_state+0xb0/0x140 kernel/cpu.c:1484 cpuhp_setup_state include/linux/cpuhotplug.h:177 [inline] page_writeback_init+0x4d/0x71 mm/page-writeback.c:2082 pagecache_init+0x48/0x4f mm/filemap.c:871 start_kernel+0x6c1/0x754 init/main.c:690 x86_64_start_reservations+0x2a/0x2c arch/x86/kernel/head64.c:377 x86_64_start_kernel+0x87/0x8a arch/x86/kernel/head64.c:358 verify_cpu+0x0/0xfb -> #3 (cpuhp_state_mutex){+.+.}: check_prevs_add kernel/locking/lockdep.c:2020 [inline] validate_chain kernel/locking/lockdep.c:2469 [inline] __lock_acquire+0x328f/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 __cpuhp_setup_state_cpuslocked+0x5b/0x5f0 kernel/cpu.c:1430 __cpuhp_setup_state+0xb0/0x140 kernel/cpu.c:1484 cpuhp_setup_state_nocalls include/linux/cpuhotplug.h:205 [inline] kvm_guest_init+0x1f3/0x20f arch/x86/kernel/kvm.c:488 setup_arch+0x1899/0x1ab3 arch/x86/kernel/setup.c:1295 start_kernel+0xa5/0x754 init/main.c:530 x86_64_start_reservations+0x2a/0x2c arch/x86/kernel/head64.c:377 x86_64_start_kernel+0x87/0x8a arch/x86/kernel/head64.c:358 verify_cpu+0x0/0xfb -> #2 (cpu_hotplug_lock.rw_sem){++++}: check_prevs_add kernel/locking/lockdep.c:2020 [inline] validate_chain kernel/locking/lockdep.c:2469 [inline] __lock_acquire+0x328f/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 tracepoint_add_func kernel/tracepoint.c:223 [inline] tracepoint_probe_register_prio+0x80d/0x9a0 kernel/tracepoint.c:283 tracepoint_probe_register+0x2a/0x40 kernel/tracepoint.c:304 trace_event_reg+0x167/0x320 kernel/trace/trace_events.c:305 perf_trace_event_reg kernel/trace/trace_event_perf.c:122 [inline] perf_trace_event_init kernel/trace/trace_event_perf.c:197 [inline] perf_trace_init+0x4f9/0xab0 kernel/trace/trace_event_perf.c:221 perf_tp_event_init+0x7d/0xf0 kernel/events/core.c:8037 perf_try_init_event+0xc9/0x1f0 kernel/events/core.c:9261 perf_init_event kernel/events/core.c:9299 [inline] perf_event_alloc+0x1c5b/0x2a00 kernel/events/core.c:9558 SYSC_perf_event_open+0x84e/0x2e00 kernel/events/core.c:10013 SyS_perf_event_open+0x39/0x50 kernel/events/core.c:9899 entry_SYSCALL_64_fastpath+0x1f/0xbe -> #1 (tracepoints_mutex){+.+.}: check_prevs_add kernel/locking/lockdep.c:2020 [inline] validate_chain kernel/locking/lockdep.c:2469 [inline] __lock_acquire+0x328f/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 tracepoint_probe_register_prio+0xa0/0x9a0 kernel/tracepoint.c:279 tracepoint_probe_register+0x2a/0x40 kernel/tracepoint.c:304 trace_event_reg+0x167/0x320 kernel/trace/trace_events.c:305 perf_trace_event_reg kernel/trace/trace_event_perf.c:122 [inline] perf_trace_event_init kernel/trace/trace_event_perf.c:197 [inline] perf_trace_init+0x4f9/0xab0 kernel/trace/trace_event_perf.c:221 perf_tp_event_init+0x7d/0xf0 kernel/events/core.c:8037 perf_try_init_event+0xc9/0x1f0 kernel/events/core.c:9261 perf_init_event kernel/events/core.c:9299 [inline] perf_event_alloc+0x1c5b/0x2a00 kernel/events/core.c:9558 SYSC_perf_event_open+0x84e/0x2e00 kernel/events/core.c:10013 SyS_perf_event_open+0x39/0x50 kernel/events/core.c:9899 entry_SYSCALL_64_fastpath+0x1f/0xbe -> #0 (event_mutex){+.+.}: 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+0x328f/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 perf_trace_init+0x58/0xab0 kernel/trace/trace_event_perf.c:216 perf_tp_event_init+0x7d/0xf0 kernel/events/core.c:8037 perf_try_init_event+0xc9/0x1f0 kernel/events/core.c:9261 perf_init_event kernel/events/core.c:9283 [inline] perf_event_alloc+0x10fa/0x2a00 kernel/events/core.c:9558 inherit_event.isra.93+0x15b/0x910 kernel/events/core.c:10772 inherit_group kernel/events/core.c:10863 [inline] inherit_task_group.isra.95.part.96+0x73/0x240 kernel/events/core.c:10921 inherit_task_group kernel/events/core.c:10901 [inline] perf_event_init_context kernel/events/core.c:10972 [inline] perf_event_init_task+0x348/0x890 kernel/events/core.c:11040 copy_process.part.36+0x173b/0x4af0 kernel/fork.c:1709 copy_process kernel/fork.c:1548 [inline] _do_fork+0x1ef/0xfe0 kernel/fork.c:2027 SYSC_clone kernel/fork.c:2137 [inline] SyS_clone+0x37/0x50 kernel/fork.c:2131 do_syscall_64+0x26c/0x8c0 arch/x86/entry/common.c:287 return_from_SYSCALL_64+0x0/0x7a other info that might help us debug this: Chain exists of: event_mutex --> &pipe->mutex/1 --> &ctx->mutex Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ctx->mutex); lock(&pipe->mutex/1); lock(&ctx->mutex); lock(event_mutex); *** DEADLOCK *** 2 locks held by syz-executor2/3711: #0: (&ctx->mutex){+.+.}, at: [] perf_event_init_context kernel/events/core.c:10965 [inline] #0: (&ctx->mutex){+.+.}, at: [] perf_event_init_task+0x25b/0x890 kernel/events/core.c:11040 #1: (&pmus_srcu){....}, at: [] perf_event_alloc+0x104a/0x2a00 kernel/events/core.c:9554 stack backtrace: CPU: 1 PID: 3711 Comm: syz-executor2 Not tainted 4.13.0-next-20170913+ #21 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 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+0x328f/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 perf_trace_init+0x58/0xab0 kernel/trace/trace_event_perf.c:216 perf_tp_event_init+0x7d/0xf0 kernel/events/core.c:8037 perf_try_init_event+0xc9/0x1f0 kernel/events/core.c:9261 perf_init_event kernel/events/core.c:9283 [inline] perf_event_alloc+0x10fa/0x2a00 kernel/events/core.c:9558 inherit_event.isra.93+0x15b/0x910 kernel/events/core.c:10772 inherit_group kernel/events/core.c:10863 [inline] inherit_task_group.isra.95.part.96+0x73/0x240 kernel/events/core.c:10921 inherit_task_group kernel/events/core.c:10901 [inline] perf_event_init_context kernel/events/core.c:10972 [inline] perf_event_init_task+0x348/0x890 kernel/events/core.c:11040 copy_process.part.36+0x173b/0x4af0 kernel/fork.c:1709 copy_process kernel/fork.c:1548 [inline] _do_fork+0x1ef/0xfe0 kernel/fork.c:2027 SYSC_clone kernel/fork.c:2137 [inline] SyS_clone+0x37/0x50 kernel/fork.c:2131 do_syscall_64+0x26c/0x8c0 arch/x86/entry/common.c:287 entry_SYSCALL64_slow_path+0x25/0x25 RIP: 0033:0x451e59 RSP: 002b:00007f4ee091cc08 EFLAGS: 00000216 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000718000 RCX: 0000000000451e59 RDX: 0000000020a25ffc RSI: 00000000209f4000 RDI: 0000000000000000 RBP: 0000000000000450 R08: 0000000020543fe4 R09: 0000000000000000 R10: 000000002039f000 R11: 0000000000000216 R12: 00000000004b721f R13: 00000000ffffffff R14: 0000000000000000 R15: 00000000209f4000 device äÂ^óÜÞ entered promiscuous mode device äÂ^óÜÞ left promiscuous mode audit: type=1326 audit(1505308051.103:4): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=3759 comm="syz-executor2" exe="/root/syz-executor2" sig=31 arch=c000003e syscall=202 compat=0 ip=0x451e59 code=0xffff0000 sctp: [Deprecated]: syz-executor5 (pid 3919) Use of int in maxseg socket option. Use struct sctp_assoc_value instead netlink: 3 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor6'. QAT: Invalid ioctl device syz3 entered promiscuous mode device syz3 left promiscuous mode device syz3 entered promiscuous mode QAT: Invalid ioctl netlink: 3 bytes leftover after parsing attributes in process `syz-executor7'. QAT: Invalid ioctl PF_BRIDGE: RTM_SETLINK with unknown ifindex PF_BRIDGE: RTM_SETLINK with unknown ifindex sctp: [Deprecated]: syz-executor6 (pid 4234) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead sctp: [Deprecated]: syz-executor6 (pid 4243) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead device gre0 entered promiscuous mode dccp_invalid_packet: P.Data Offset(172) too large QAT: Invalid ioctl SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=4330 comm=syz-executor5 dccp_invalid_packet: pskb_may_pull failed QAT: Invalid ioctl dccp_invalid_packet: P.Data Offset(172) too large QAT: Invalid ioctl QAT: Invalid ioctl sock: process `syz-executor6' is using obsolete getsockopt SO_BSDCOMPAT netlink: 16 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor6'. audit: type=1326 audit(1505308055.299:5): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=4696 comm="syz-executor1" exe="/root/syz-executor1" sig=9 arch=c000003e syscall=202 compat=0 ip=0x451e59 code=0x0 audit: type=1326 audit(1505308055.425:6): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=4696 comm="syz-executor1" exe="/root/syz-executor1" sig=9 arch=c000003e syscall=202 compat=0 ip=0x451e59 code=0x0 raw_sendmsg: syz-executor1 forgot to set AF_INET. Fix it! TCP: request_sock_TCP: Possible SYN flooding on port 20008. Sending cookies. Check SNMP counters. netlink: 5 bytes leftover after parsing attributes in process `syz-executor5'. TCP: request_sock_TCP: Possible SYN flooding on port 20008. Sending cookies. Check SNMP counters. netlink: 5 bytes leftover after parsing attributes in process `syz-executor5'. TCP: request_sock_TCP: Possible SYN flooding on port 20008. Sending cookies. Check SNMP counters. netlink: 2 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor5'. TCP: request_sock_TCP: Possible SYN flooding on port 20008. Sending cookies. Check SNMP counters. audit: type=1326 audit(1505308056.164:7): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=4910 comm="syz-executor1" exe="/root/syz-executor1" sig=0 arch=c000003e syscall=202 compat=0 ip=0x451e59 code=0x50000 audit: type=1326 audit(1505308056.164:8): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=4910 comm="syz-executor1" exe="/root/syz-executor1" sig=0 arch=c000003e syscall=202 compat=0 ip=0x451e59 code=0x50000 TCP: request_sock_TCP: Possible SYN flooding on port 20008. Sending cookies. Check SNMP counters. audit: type=1326 audit(1505308056.164:9): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=4910 comm="syz-executor1" exe="/root/syz-executor1" sig=0 arch=c000003e syscall=202 compat=0 ip=0x451e59 code=0x50000 audit: type=1326 audit(1505308056.165:10): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=4910 comm="syz-executor1" exe="/root/syz-executor1" sig=0 arch=c000003e syscall=202 compat=0 ip=0x451e59 code=0x50000 audit: type=1326 audit(1505308056.165:11): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=4910 comm="syz-executor1" exe="/root/syz-executor1" sig=0 arch=c000003e syscall=202 compat=0 ip=0x451e59 code=0x50000 audit: type=1326 audit(1505308056.165:12): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=4910 comm="syz-executor1" exe="/root/syz-executor1" sig=0 arch=c000003e syscall=202 compat=0 ip=0x451e59 code=0x50000 audit: type=1326 audit(1505308056.165:13): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=4910 comm="syz-executor1" exe="/root/syz-executor1" sig=0 arch=c000003e syscall=202 compat=0 ip=0x451e59 code=0x50000 audit: type=1326 audit(1505308056.165:14): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=4910 comm="syz-executor1" exe="/root/syz-executor1" sig=0 arch=c000003e syscall=202 compat=0 ip=0x451e59 code=0x50000 FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 1 CPU: 0 PID: 4945 Comm: syz-executor2 Not tainted 4.13.0-next-20170913+ #21 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:16 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:52 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x8c0/0xa40 lib/fault-inject.c:149 should_fail_alloc_page mm/page_alloc.c:2915 [inline] prepare_alloc_pages mm/page_alloc.c:4151 [inline] __alloc_pages_nodemask+0x338/0xd80 mm/page_alloc.c:4187 alloc_pages_current+0xb6/0x1e0 mm/mempolicy.c:2035 alloc_pages include/linux/gfp.h:505 [inline] skb_page_frag_refill+0x358/0x5f0 net/core/sock.c:2196 tun_build_skb.isra.42+0x2a2/0x1690 drivers/net/tun.c:1289 tun_get_user+0x1dad/0x2150 drivers/net/tun.c:1455 tun_chr_write_iter+0xde/0x190 drivers/net/tun.c:1579 call_write_iter include/linux/fs.h:1770 [inline] new_sync_write fs/read_write.c:468 [inline] __vfs_write+0x68a/0x970 fs/read_write.c:481 vfs_write+0x18f/0x510 fs/read_write.c:543 SYSC_write fs/read_write.c:588 [inline] SyS_write+0xef/0x220 fs/read_write.c:580 entry_SYSCALL_64_fastpath+0x1f/0xbe RIP: 0033:0x40c2c1 RSP: 002b:00007f4ee091cc10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000718000 RCX: 000000000040c2c1 RDX: 0000000000000036 RSI: 000000002001a000 RDI: 0000000000000015 RBP: 00007f4ee091ca10 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000000f4240 R11: 0000000000000293 R12: 00000000004b69f7 R13: 00007f4ee091cb48 R14: 00000000004b6a07 R15: 0000000000000000 TCP: request_sock_TCP: Possible SYN flooding on port 20008. Sending cookies. Check SNMP counters. FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 1 CPU: 0 PID: 4949 Comm: syz-executor2 Not tainted 4.13.0-next-20170913+ #21 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:16 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:52 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x8c0/0xa40 lib/fault-inject.c:149 should_failslab+0xec/0x120 mm/failslab.c:31 slab_pre_alloc_hook mm/slab.h:422 [inline] slab_alloc mm/slab.c:3383 [inline] kmem_cache_alloc+0x47/0x760 mm/slab.c:3559 __build_skb+0x9d/0x450 net/core/skbuff.c:284 build_skb+0x6f/0x260 net/core/skbuff.c:316 tun_build_skb.isra.42+0x92f/0x1690 drivers/net/tun.c:1346 tun_get_user+0x1dad/0x2150 drivers/net/tun.c:1455 tun_chr_write_iter+0xde/0x190 drivers/net/tun.c:1579 call_write_iter include/linux/fs.h:1770 [inline] new_sync_write fs/read_write.c:468 [inline] __vfs_write+0x68a/0x970 fs/read_write.c:481 vfs_write+0x18f/0x510 fs/read_write.c:543 SYSC_write fs/read_write.c:588 [inline] SyS_write+0xef/0x220 fs/read_write.c:580 entry_SYSCALL_64_fastpath+0x1f/0xbe RIP: 0033:0x40c2c1 RSP: 002b:00007f4ee091cc10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000718000 RCX: 000000000040c2c1 RDX: 0000000000000036 RSI: 000000002001a000 RDI: 0000000000000015 RBP: 00007f4ee091ca10 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000000f4240 R11: 0000000000000293 R12: 00000000004b69f7 R13: 00007f4ee091cb48 R14: 00000000004b6a07 R15: 0000000000000000 TCP: request_sock_TCP: Possible SYN flooding on port 20008. Sending cookies. Check SNMP counters. FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 4956 Comm: syz-executor2 Not tainted 4.13.0-next-20170913+ #21 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:16 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:52 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x8c0/0xa40 lib/fault-inject.c:149 should_failslab+0xec/0x120 mm/failslab.c:31 slab_pre_alloc_hook mm/slab.h:422 [inline] slab_alloc mm/slab.c:3383 [inline] kmem_cache_alloc+0x47/0x760 mm/slab.c:3559 reqsk_alloc include/net/request_sock.h:88 [inline] inet_reqsk_alloc+0xad/0x570 net/ipv4/tcp_input.c:6192 tcp_conn_request+0x657/0x3410 net/ipv4/tcp_input.c:6291 tcp_v4_conn_request+0x157/0x210 net/ipv4/tcp_ipv4.c:1313 tcp_rcv_state_process+0x8ff/0x4d10 net/ipv4/tcp_input.c:5878 tcp_v4_do_rcv+0x55c/0x7d0 net/ipv4/tcp_ipv4.c:1482 tcp_v4_rcv+0x2e07/0x2f20 net/ipv4/tcp_ipv4.c:1710 ip_local_deliver_finish+0x2e2/0xba0 net/ipv4/ip_input.c:216 NF_HOOK include/linux/netfilter.h:249 [inline] ip_local_deliver+0x1ce/0x6e0 net/ipv4/ip_input.c:257 dst_input include/net/dst.h:478 [inline] ip_rcv_finish+0x8db/0x19c0 net/ipv4/ip_input.c:397 NF_HOOK include/linux/netfilter.h:249 [inline] ip_rcv+0xc3f/0x17d0 net/ipv4/ip_input.c:488 __netif_receive_skb_core+0x19af/0x33d0 net/core/dev.c:4423 __netif_receive_skb+0x2c/0x1b0 net/core/dev.c:4461 netif_receive_skb_internal+0x10b/0x670 net/core/dev.c:4534 netif_receive_skb+0xae/0x390 net/core/dev.c:4558 tun_rx_batched.isra.43+0x5ed/0x860 drivers/net/tun.c:1218 tun_get_user+0x11dd/0x2150 drivers/net/tun.c:1553 tun_chr_write_iter+0xde/0x190 drivers/net/tun.c:1579 call_write_iter include/linux/fs.h:1770 [inline] new_sync_write fs/read_write.c:468 [inline] __vfs_write+0x68a/0x970 fs/read_write.c:481 vfs_write+0x18f/0x510 fs/read_write.c:543 SYSC_write fs/read_write.c:588 [inline] SyS_write+0xef/0x220 fs/read_write.c:580 entry_SYSCALL_64_fastpath+0x1f/0xbe RIP: 0033:0x40c2c1 RSP: 002b:00007f4ee091cc10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000718000 RCX: 000000000040c2c1 RDX: 0000000000000036 RSI: 000000002001a000 RDI: 0000000000000015 RBP: 00007f4ee091ca10 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000000f4240 R11: 0000000000000293 R12: 00000000004b69f7 R13: 00007f4ee091cb48 R14: 00000000004b6a07 R15: 0000000000000000 TCP: request_sock_TCP: Possible SYN flooding on port 20008. Sending cookies. Check SNMP counters. FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 4966 Comm: syz-executor2 Not tainted 4.13.0-next-20170913+ #21 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:16 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:52 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x8c0/0xa40 lib/fault-inject.c:149 should_failslab+0xec/0x120 mm/failslab.c:31 slab_pre_alloc_hook mm/slab.h:422 [inline] slab_alloc_node mm/slab.c:3304 [inline] kmem_cache_alloc_node+0x56/0x760 mm/slab.c:3649 __alloc_skb+0xf1/0x740 net/core/skbuff.c:194 alloc_skb include/linux/skbuff.h:976 [inline] tcp_make_synack+0xa1/0x15a0 net/ipv4/tcp_output.c:3152 tcp_v4_send_synack+0x9f/0x270 net/ipv4/tcp_ipv4.c:873 tcp_conn_request+0x1f6b/0x3410 net/ipv4/tcp_input.c:6376 tcp_v4_conn_request+0x157/0x210 net/ipv4/tcp_ipv4.c:1313 tcp_rcv_state_process+0x8ff/0x4d10 net/ipv4/tcp_input.c:5878 tcp_v4_do_rcv+0x55c/0x7d0 net/ipv4/tcp_ipv4.c:1482 tcp_v4_rcv+0x2e07/0x2f20 net/ipv4/tcp_ipv4.c:1710 ip_local_deliver_finish+0x2e2/0xba0 net/ipv4/ip_input.c:216 NF_HOOK include/linux/netfilter.h:249 [inline] ip_local_deliver+0x1ce/0x6e0 net/ipv4/ip_input.c:257 dst_input include/net/dst.h:478 [inline] ip_rcv_finish+0x8db/0x19c0 net/ipv4/ip_input.c:397 NF_HOOK include/linux/netfilter.h:249 [inline] ip_rcv+0xc3f/0x17d0 net/ipv4/ip_input.c:488 __netif_receive_skb_core+0x19af/0x33d0 net/core/dev.c:4423 __netif_receive_skb+0x2c/0x1b0 net/core/dev.c:4461 netif_receive_skb_internal+0x10b/0x670 net/core/dev.c:4534 netif_receive_skb+0xae/0x390 net/core/dev.c:4558 tun_rx_batched.isra.43+0x5ed/0x860 drivers/net/tun.c:1218 tun_get_user+0x11dd/0x2150 drivers/net/tun.c:1553 tun_chr_write_iter+0xde/0x190 drivers/net/tun.c:1579 call_write_iter include/linux/fs.h:1770 [inline] new_sync_write fs/read_write.c:468 [inline] __vfs_write+0x68a/0x970 fs/read_write.c:481 vfs_write+0x18f/0x510 fs/read_write.c:543 SYSC_write fs/read_write.c:588 [inline] SyS_write+0xef/0x220 fs/read_write.c:580 entry_SYSCALL_64_fastpath+0x1f/0xbe RIP: 0033:0x40c2c1 RSP: 002b:00007f4ee091cc10 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000718000 RCX: 000000000040c2c1 RDX: 0000000000000036 RSI: 000000002001a000 RDI: 0000000000000015 RBP: 00007f4ee091ca10 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000000f4240 R11: 0000000000000293 R12: 00000000004b69f7 R13: 00007f4ee091cb48 R14: 00000000004b6a07 R15: 0000000000000000 TCP: request_sock_TCP: Possible SYN flooding on port 20008. Sending cookies. Check SNMP counters. sock: process `syz-executor0' is using obsolete getsockopt SO_BSDCOMPAT FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 4986 Comm: syz-executor2 Not tainted 4.13.0-next-20170913+ #21 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:16 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:52 fail_dump lib/fault-inject.c:51 [inline] should_fail+0x8c0/0xa40 lib/fault-inject.c:149 should_failslab+0xec/0x120 mm/failslab.c:31 slab_pre_alloc_hook mm/slab.h:422 [inline] slab_alloc_node mm/slab.c:3304 [inline] kmem_cache_alloc_node_trace+0x5a/0x760 mm/slab.c:3668 __do_kmalloc_node mm/slab.c:3688 [inline] __kmalloc_node_track_caller+0x33/0x70 mm/slab.c:3703 __kmalloc_reserve.isra.40+0x41/0xd0 net/core/skbuff.c:138 __alloc_skb+0x13b/0x740 net/core/skbuff.c:206 alloc_skb include/linux/skbuff.h:976 [inline] tcp_make_synack+0xa1/0x15a0 net/ipv4/tcp_output.c:3152 tcp_v4_send_synack+0x9f/0x270 net/ipv4/tcp_ipv4.c:873 tcp_conn_request+0x1f6b/0x3410 net/ipv4/tcp_input.c:6376 tcp_v4_conn_request+0x157/0x210 net/ipv4/tcp_ipv4.c:1313 tcp_rcv_state_process+0x8ff/0x4d10 net/ipv4/tcp_input.c:5878 tcp_v4_do_rcv+0x55c/0x7d0 net/ipv4/tcp_ipv4.c:1482 tcp_v4_rcv+0x2e07/0x2f20 net/ipv4/tcp_ipv4.c:1710 ip_local_deliver_finish+0x2e2/0xba0 net/ipv4/ip_input.c:216