WARNING: possible circular locking dependency detected 4.15.0-rc3+ #219 Not tainted ------------------------------------------------------ syz-executor1/21963 is trying to acquire lock: (&ctx->mutex){+.+.}, at: [<00000000c7d0c0ba>] perf_event_ctx_lock_nested+0x21b/0x450 kernel/events/core.c:1249 but task is already holding lock: (&pipe->mutex/1){+.+.}, at: [<00000000508ff1d8>] pipe_lock_nested fs/pipe.c:67 [inline] (&pipe->mutex/1){+.+.}, at: [<00000000508ff1d8>] pipe_lock+0x56/0x70 fs/pipe.c:75 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #8 (&pipe->mutex/1){+.+.}: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4004 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0x16f/0x1a80 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 pipe_lock_nested fs/pipe.c:67 [inline] pipe_lock+0x56/0x70 fs/pipe.c:75 iter_file_splice_write+0x264/0xf30 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/0x96 -> #7 (sb_writers){.+.+}: spin_lock include/linux/spinlock.h:315 [inline] fsnotify_detach_mark+0x152/0x5c0 fs/notify/mark.c:341 fsnotify_destroy_mark+0x2e/0x50 fs/notify/mark.c:391 fsnotify_destroy_marks+0xdf/0x190 fs/notify/mark.c:717 fsnotify_clear_marks_by_inode fs/notify/fsnotify.h:33 [inline] __fsnotify_inode_delete+0x19/0x20 fs/notify/fsnotify.c:35 fsnotify_inoderemove include/linux/fsnotify.h:136 [inline] dentry_unlink_inode+0x49e/0x5e0 fs/dcache.c:371 -> #6 ((completion)&req.done){+.+.}: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4004 complete_acquire include/linux/completion.h:40 [inline] __wait_for_common kernel/sched/completion.c:109 [inline] wait_for_common kernel/sched/completion.c:123 [inline] wait_for_completion+0xcb/0x7b0 kernel/sched/completion.c:144 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+0x2ea/0x1d20 kernel/cpu.c:182 cpuhp_thread_fun+0x48e/0x7e0 kernel/cpu.c:571 smpboot_thread_fn+0x450/0x7c0 kernel/smpboot.c:164 kthread+0x37a/0x440 kernel/kthread.c:238 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:441 -> #5 (cpuhp_state-up){+.+.}: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4004 cpuhp_lock_acquire kernel/cpu.c:85 [inline] cpuhp_invoke_ap_callback kernel/cpu.c:605 [inline] cpuhp_issue_call+0x1e5/0x520 kernel/cpu.c:1495 __cpuhp_setup_state_cpuslocked+0x282/0x600 kernel/cpu.c:1642 __cpuhp_setup_state+0xb0/0x140 kernel/cpu.c:1671 cpuhp_setup_state include/linux/cpuhotplug.h:201 [inline] page_writeback_init+0x4d/0x71 mm/page-writeback.c:2081 pagecache_init+0x48/0x4f mm/filemap.c:977 start_kernel+0x6bc/0x74f init/main.c:695 x86_64_start_reservations+0x2a/0x2c arch/x86/kernel/head64.c:378 x86_64_start_kernel+0x77/0x7a arch/x86/kernel/head64.c:359 secondary_startup_64+0xa5/0xb0 arch/x86/kernel/head_64.S:237 -> #4 (cpuhp_state_mutex){+.+.}: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4004 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0x16f/0x1a80 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 __cpuhp_setup_state_cpuslocked+0x5b/0x600 kernel/cpu.c:1617 __cpuhp_setup_state+0xb0/0x140 kernel/cpu.c:1671 cpuhp_setup_state_nocalls include/linux/cpuhotplug.h:229 [inline] kvm_guest_init+0x1f3/0x20f arch/x86/kernel/kvm.c:528 setup_arch+0x17e8/0x1a02 arch/x86/kernel/setup.c:1266 start_kernel+0xa5/0x74f init/main.c:530 x86_64_start_reservations+0x2a/0x2c arch/x86/kernel/head64.c:378 x86_64_start_kernel+0x77/0x7a arch/x86/kernel/head64.c:359 secondary_startup_64+0xa5/0xb0 arch/x86/kernel/head_64.S:237 -> #3 (cpu_hotplug_lock.rw_sem){++++}: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4004 percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] cpus_read_lock+0x42/0x90 kernel/cpu.c:293 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+0x4ef/0xab0 kernel/trace/trace_event_perf.c:221 perf_tp_event_init+0x7d/0xf0 kernel/events/core.c:7956 perf_try_init_event+0xc9/0x1f0 kernel/events/core.c:9182 perf_init_event kernel/events/core.c:9220 [inline] perf_event_alloc+0x1cc6/0x2b00 kernel/events/core.c:9484 SYSC_perf_event_open+0x842/0x2f10 kernel/events/core.c:9939 SyS_perf_event_open+0x39/0x50 kernel/events/core.c:9825 entry_SYSCALL_64_fastpath+0x1f/0x96 -> #2 (tracepoints_mutex){+.+.}: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4004 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0x16f/0x1a80 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+0x4ef/0xab0 kernel/trace/trace_event_perf.c:221 perf_tp_event_init+0x7d/0xf0 kernel/events/core.c:7956 perf_try_init_event+0xc9/0x1f0 kernel/events/core.c:9182 perf_init_event kernel/events/core.c:9220 [inline] perf_event_alloc+0x1cc6/0x2b00 kernel/events/core.c:9484 SYSC_perf_event_open+0x842/0x2f10 kernel/events/core.c:9939 SyS_perf_event_open+0x39/0x50 kernel/events/core.c:9825 entry_SYSCALL_64_fastpath+0x1f/0x96 -> #1 (event_mutex){+.+.}: lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4004 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0x16f/0x1a80 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:7956 perf_try_init_event+0xc9/0x1f0 kernel/events/core.c:9182 perf_init_event kernel/events/core.c:9204 [inline] perf_event_alloc+0x1005/0x2b00 kernel/events/core.c:9484 inherit_event.isra.92+0x15b/0x920 kernel/events/core.c:10698 inherit_group kernel/events/core.c:10789 [inline] inherit_task_group.isra.94.part.95+0x73/0x240 kernel/events/core.c:10847 inherit_task_group kernel/events/core.c:10827 [inline] perf_event_init_context kernel/events/core.c:10898 [inline] perf_event_init_task+0x348/0x890 kernel/events/core.c:10966 copy_process.part.36+0x173b/0x4ae0 kernel/fork.c:1727 copy_process kernel/fork.c:1566 [inline] _do_fork+0x1ef/0xff0 kernel/fork.c:2045 SYSC_clone kernel/fork.c:2155 [inline] SyS_clone+0x37/0x50 kernel/fork.c:2149 do_syscall_64+0x26c/0x920 arch/x86/entry/common.c:285 return_from_SYSCALL_64+0x0/0x75 -> #0 (&ctx->mutex){+.+.}: check_prevs_add kernel/locking/lockdep.c:2031 [inline] validate_chain kernel/locking/lockdep.c:2473 [inline] __lock_acquire+0x3498/0x47f0 kernel/locking/lockdep.c:3500 lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4004 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0x16f/0x1a80 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 perf_event_ctx_lock_nested+0x21b/0x450 kernel/events/core.c:1249 perf_event_ctx_lock kernel/events/core.c:1262 [inline] perf_read+0xb9/0x970 kernel/events/core.c:4507 do_loop_readv_writev fs/read_write.c:673 [inline] do_iter_read+0x3db/0x5b0 fs/read_write.c:897 vfs_readv+0x121/0x1c0 fs/read_write.c:959 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/0x96 other info that might help us debug this: Chain exists of: &ctx->mutex --> sb_writers --> &pipe->mutex/1 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&pipe->mutex/1); lock(sb_writers); lock(&pipe->mutex/1); lock(&ctx->mutex); *** DEADLOCK *** 1 lock held by syz-executor1/21963: #0: (&pipe->mutex/1){+.+.}, at: [<00000000508ff1d8>] pipe_lock_nested fs/pipe.c:67 [inline] #0: (&pipe->mutex/1){+.+.}, at: [<00000000508ff1d8>] pipe_lock+0x56/0x70 fs/pipe.c:75 stack backtrace: CPU: 1 PID: 21963 Comm: syz-executor1 Not tainted 4.15.0-rc3+ #219 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 print_circular_bug+0x42d/0x610 kernel/locking/lockdep.c:1271 check_prev_add+0x666/0x15f0 kernel/locking/lockdep.c:1914 check_prevs_add kernel/locking/lockdep.c:2031 [inline] validate_chain kernel/locking/lockdep.c:2473 [inline] __lock_acquire+0x3498/0x47f0 kernel/locking/lockdep.c:3500 lock_acquire+0x1d5/0x580 kernel/locking/lockdep.c:4004 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0x16f/0x1a80 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 perf_event_ctx_lock_nested+0x21b/0x450 kernel/events/core.c:1249 perf_event_ctx_lock kernel/events/core.c:1262 [inline] perf_read+0xb9/0x970 kernel/events/core.c:4507 do_loop_readv_writev fs/read_write.c:673 [inline] do_iter_read+0x3db/0x5b0 fs/read_write.c:897 vfs_readv+0x121/0x1c0 fs/read_write.c:959 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/0x96 RIP: 0033:0x452a39 RSP: 002b:00007fd128948c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 0000000000758020 RCX: 0000000000452a39 RDX: 0000000000000016 RSI: 0000000000000000 RDI: 0000000000000017 RBP: 00000000000003f4 R08: 0000000100000001 R09: 000000000000000e R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f3f80 R13: 00000000ffffffff R14: 00007fd1289496d4 R15: 0000000000000000 device lo entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): lo: link is not ready netlink: 3 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 3 bytes leftover after parsing attributes in process `syz-executor4'. audit: type=1326 audit(1513178250.852:1889): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=22032 comm="syz-executor1" exe="/root/syz-executor1" sig=9 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0x0 audit: type=1326 audit(1513178250.941:1890): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=22032 comm="syz-executor1" exe="/root/syz-executor1" sig=9 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0x0 device gre0 entered promiscuous mode tty_warn_deprecated_flags: 'syz-executor6' is using deprecated serial flags (with no effect): 00008000 sg_write: data in/out 327644/118 bytes for SCSI command 0xec-- guessing data in; program syz-executor1 not setting count and/or reply_len properly sg_write: data in/out 327644/118 bytes for SCSI command 0xec-- guessing data in; program syz-executor1 not setting count and/or reply_len properly tty_warn_deprecated_flags: 'syz-executor6' is using deprecated serial flags (with no effect): 00008000 audit: type=1400 audit(1513178252.752:1891): avc: denied { map } for pid=22232 comm="syz-executor1" path="socket:[80884]" dev="sockfs" ino=80884 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=unix_dgram_socket permissive=1 audit: type=1326 audit(1513178252.783:1892): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=22229 comm="syz-executor6" exe="/root/syz-executor6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0xffff0000 audit: type=1326 audit(1513178252.803:1893): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=22229 comm="syz-executor6" exe="/root/syz-executor6" sig=31 arch=c000003e syscall=35 compat=0 ip=0x47e0a1 code=0xffff0000 device gre0 entered promiscuous mode binder: 22275:22277 DecRefs 0 refcount change on invalid ref 3 ret -22 binder: 22277 RLIMIT_NICE not set binder: 22275:22286 DecRefs 0 refcount change on invalid ref 3 ret -22 binder: BINDER_SET_CONTEXT_MGR already set binder: 22286 RLIMIT_NICE not set binder: 22275:22277 ioctl 40046207 0 returned -16 binder_alloc: 22275: binder_alloc_buf, no vma binder: 22275:22301 transaction failed 29189/-3, size 0-0 line 2890 binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_COMPLETE QAT: Invalid ioctl QAT: Invalid ioctl nla_parse: 6 callbacks suppressed netlink: 8 bytes leftover after parsing attributes in process `syz-executor0'. QAT: Invalid ioctl netlink: 8 bytes leftover after parsing attributes in process `syz-executor0'. QAT: Invalid ioctl futex_wake_op: syz-executor1 tries to shift op by -1; fix this program futex_wake_op: syz-executor1 tries to shift op by -1; fix this program device lo left promiscuous mode futex_wake_op: syz-executor5 tries to shift op by -1; fix this program netlink: 16 bytes leftover after parsing attributes in process `syz-executor3'. futex_wake_op: syz-executor5 tries to shift op by -1; fix this program netlink: 16 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 'syz-executor5': attribute type 27 has an invalid length. netlink: 4 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 'syz-executor5': attribute type 27 has an invalid length. netlink: 4 bytes leftover after parsing attributes in process `syz-executor0'. audit: type=1400 audit(1513178255.224:1894): avc: denied { bind } for pid=22769 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_connector_socket permissive=1 device gre0 entered promiscuous mode audit: type=1326 audit(1513178255.535:1895): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=22819 comm="syz-executor1" exe="/root/syz-executor1" sig=31 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0xffff0000 audit: type=1326 audit(1513178255.664:1896): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=22819 comm="syz-executor1" exe="/root/syz-executor1" sig=31 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0xffff0000 netlink: 1 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 1 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor3'. binder: 23065:23068 BC_DEAD_BINDER_DONE 0000000000000000 not found binder: 23065:23068 BC_DEAD_BINDER_DONE 0000000000000000 not found device syz6 entered promiscuous mode device syz6 left promiscuous mode device syz6 entered promiscuous mode kvm [23235]: vcpu2, guest rIP: 0xfff0 kvm_set_msr_common: MSR_IA32_DEBUGCTLMSR 0x2, nop netlink: 'syz-executor5': attribute type 11 has an invalid length. netlink: 'syz-executor5': attribute type 11 has an invalid length. dccp_v4_rcv: dropped packet with invalid checksum dccp_v4_rcv: dropped packet with invalid checksum nla_parse: 4 callbacks suppressed netlink: 4 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 2 bytes leftover after parsing attributes in process `syz-executor7'. device lo entered promiscuous mode sock: process `syz-executor6' is using obsolete setsockopt SO_BSDCOMPAT binder: 23432:23441 ioctl 40046205 4f returned -22 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=770 sclass=netlink_xfrm_socket pig=23439 comm=syz-executor6 device gre0 entered promiscuous mode binder: 23432:23452 ioctl c0306201 20002fd0 returned -14 binder: 23432:23452 got reply transaction with no transaction stack binder: 23432:23452 transaction failed 29201/-71, size 24-8 line 2690 binder: 23432:23452 ioctl 8004543b 20b06791 returned -22 binder: 23432:23452 ioctl 40046205 4f returned -22 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=770 sclass=netlink_xfrm_socket pig=23449 comm=syz-executor6 binder: 23432:23441 ioctl c0306201 20002fd0 returned -14 binder: 23432:23468 got reply transaction with no transaction stack binder: 23432:23468 transaction failed 29201/-71, size 24-8 line 2690 binder: 23432:23441 ioctl 8004543b 20b06791 returned -22 binder: 23432:23492 BC_FREE_BUFFER u0000000000000000 no match binder: 23432:23492 IncRefs 0 refcount change on invalid ref 1 ret -22 binder: 23432:23492 got transaction to invalid handle binder: 23432:23492 transaction failed 29201/-22, size 72-8 line 2775 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=23500 comm=syz-executor1 binder: undelivered TRANSACTION_ERROR: 29201 netlink: 'syz-executor5': attribute type 1 has an invalid length. netlink: 'syz-executor5': attribute type 1 has an invalid length. IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready netlink: 17 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 17 bytes leftover after parsing attributes in process `syz-executor4'. tmpfs: Bad mount option 3~~QPx_`}F:&#&4߭ˈ&.)6?.%:fZ6fQ~;1UD tmpfs: Bad mount option 3~~QPx_`}F:&#&4߭ˈ&.)6?.%:fZ6fQ~;1UD audit: type=1400 audit(1513178259.891:1897): avc: denied { setattr } for pid=23659 comm="syz-executor7" name="NETLINK" dev="sockfs" ino=87071 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 binder: BINDER_SET_CONTEXT_MGR already set binder: 23662:23664 ioctl 40046207 0 returned -16 binder: 23664 RLIMIT_NICE not set binder: BINDER_SET_CONTEXT_MGR already set binder: 23662:23664 ioctl 40046207 0 returned -16 binder: 23662:23664 BC_REQUEST_DEATH_NOTIFICATION invalid ref 0 binder: 23662:23664 BC_CLEAR_DEATH_NOTIFICATION invalid ref 0 binder: 23664 RLIMIT_NICE not set netlink: 2 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 'syz-executor4': attribute type 2 has an invalid length. netlink: 2 bytes leftover after parsing attributes in process `syz-executor0'. audit: type=1326 audit(1513178260.448:1898): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=23715 comm="syz-executor2" exe="/root/syz-executor2" sig=9 arch=c000003e syscall=202 compat=0 ip=0x452a39 code=0x0