====================================================== WARNING: possible circular locking dependency detected 4.14.0-rc2+ #11 Not tainted ------------------------------------------------------ syz-executor6/23026 is trying to acquire lock: (event_mutex){+.+.}, at: [] perf_trace_destroy+0x28/0x100 kernel/trace/trace_event_perf.c:234 but task is already holding lock: (&mm->mmap_sem){++++}, at: [] vm_mmap_pgoff+0x198/0x280 mm/util.c:331 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #7 (&mm->mmap_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 __might_fault+0x13a/0x1d0 mm/memory.c:4502 _copy_to_user+0x2c/0xc0 lib/usercopy.c:24 copy_to_user include/linux/uaccess.h:154 [inline] filldir+0x1a7/0x320 fs/readdir.c:196 dir_emit_dot include/linux/fs.h:3339 [inline] dir_emit_dots include/linux/fs.h:3350 [inline] dcache_readdir+0x12d/0x5e0 fs/libfs.c:192 iterate_dir+0x4b2/0x5d0 fs/readdir.c:51 SYSC_getdents fs/readdir.c:231 [inline] SyS_getdents+0x225/0x450 fs/readdir.c:212 entry_SYSCALL_64_fastpath+0x1f/0xbe -> #6 (&sb->s_type->i_mutex_key#5){++++}: down_write+0x87/0x120 kernel/locking/rwsem.c:53 inode_lock include/linux/fs.h:712 [inline] handle_create+0x30c/0x760 drivers/base/devtmpfs.c:218 handle drivers/base/devtmpfs.c:372 [inline] devtmpfsd+0x3b4/0x4b0 drivers/base/devtmpfs.c:398 kthread+0x39c/0x470 kernel/kthread.c:231 ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:431 -> #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+0xcb/0x7b0 kernel/sched/completion.c:143 devtmpfs_create_node+0x32b/0x4a0 drivers/base/devtmpfs.c:114 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+0x450/0x7c0 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+0x2cc/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+0x77/0x7a 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/0x19d0 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+0x1879/0x1a93 arch/x86/kernel/setup.c:1297 start_kernel+0xa5/0x754 init/main.c:530 x86_64_start_reservations+0x2a/0x2c arch/x86/kernel/head64.c:377 x86_64_start_kernel+0x77/0x7a 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+0x4ef/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:9262 perf_init_event kernel/events/core.c:9300 [inline] perf_event_alloc+0x1c5b/0x2a00 kernel/events/core.c:9559 SYSC_perf_event_open+0x84e/0x2e00 kernel/events/core.c:10014 SyS_perf_event_open+0x39/0x50 kernel/events/core.c:9900 do_syscall_32_irqs_on arch/x86/entry/common.c:329 [inline] do_fast_syscall_32+0x3f2/0xf05 arch/x86/entry/common.c:391 entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:124 -> #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/0x19d0 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:8037 perf_try_init_event+0xc9/0x1f0 kernel/events/core.c:9262 perf_init_event kernel/events/core.c:9300 [inline] perf_event_alloc+0x1c5b/0x2a00 kernel/events/core.c:9559 SYSC_perf_event_open+0x84e/0x2e00 kernel/events/core.c:10014 SyS_perf_event_open+0x39/0x50 kernel/events/core.c:9900 do_syscall_32_irqs_on arch/x86/entry/common.c:329 [inline] do_fast_syscall_32+0x3f2/0xf05 arch/x86/entry/common.c:391 entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:124 -> #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/0x19d0 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 perf_trace_destroy+0x28/0x100 kernel/trace/trace_event_perf.c:234 tp_perf_event_destroy+0x15/0x20 kernel/events/core.c:8021 _free_event+0x41d/0x1170 kernel/events/core.c:4193 put_event+0x24/0x30 kernel/events/core.c:4276 perf_mmap_close+0x60d/0xf90 kernel/events/core.c:5224 remove_vma+0xb4/0x1b0 mm/mmap.c:172 remove_vma_list mm/mmap.c:2475 [inline] do_munmap+0x82a/0xdf0 mm/mmap.c:2714 mmap_region+0x59e/0x15a0 mm/mmap.c:1631 do_mmap+0x6a1/0xd50 mm/mmap.c:1468 do_mmap_pgoff include/linux/mm.h:2150 [inline] vm_mmap_pgoff+0x1de/0x280 mm/util.c:333 SYSC_mmap_pgoff mm/mmap.c:1518 [inline] SyS_mmap_pgoff+0x23b/0x5f0 mm/mmap.c:1476 do_syscall_32_irqs_on arch/x86/entry/common.c:329 [inline] do_fast_syscall_32+0x3f2/0xf05 arch/x86/entry/common.c:391 entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:124 other info that might help us debug this: Chain exists of: event_mutex --> &sb->s_type->i_mutex_key#5 --> &mm->mmap_sem Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&mm->mmap_sem); lock(&sb->s_type->i_mutex_key#5); lock(&mm->mmap_sem); lock(event_mutex); *** DEADLOCK *** 1 lock held by syz-executor6/23026: #0: (&mm->mmap_sem){++++}, at: [] vm_mmap_pgoff+0x198/0x280 mm/util.c:331 stack backtrace: CPU: 0 PID: 23026 Comm: syz-executor6 Not tainted 4.14.0-rc2+ #11 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/0x19d0 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 perf_trace_destroy+0x28/0x100 kernel/trace/trace_event_perf.c:234 tp_perf_event_destroy+0x15/0x20 kernel/events/core.c:8021 _free_event+0x41d/0x1170 kernel/events/core.c:4193 put_event+0x24/0x30 kernel/events/core.c:4276 perf_mmap_close+0x60d/0xf90 kernel/events/core.c:5224 remove_vma+0xb4/0x1b0 mm/mmap.c:172 remove_vma_list mm/mmap.c:2475 [inline] do_munmap+0x82a/0xdf0 mm/mmap.c:2714 mmap_region+0x59e/0x15a0 mm/mmap.c:1631 do_mmap+0x6a1/0xd50 mm/mmap.c:1468 do_mmap_pgoff include/linux/mm.h:2150 [inline] vm_mmap_pgoff+0x1de/0x280 mm/util.c:333 SYSC_mmap_pgoff mm/mmap.c:1518 [inline] SyS_mmap_pgoff+0x23b/0x5f0 mm/mmap.c:1476 do_syscall_32_irqs_on arch/x86/entry/common.c:329 [inline] do_fast_syscall_32+0x3f2/0xf05 arch/x86/entry/common.c:391 entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:124 RIP: 0023:0xf7fbdc79 RSP: 002b:00000000f779805c EFLAGS: 00000296 ORIG_RAX: 00000000000000c0 RAX: ffffffffffffffda RBX: 0000000020007000 RCX: 0000000000003000 RDX: 0000000000000000 RSI: 0000000000000032 RDI: 0000000000000006 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 sctp: [Deprecated]: syz-executor7 (pid 23047) Use of int in maxseg socket option. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor7 (pid 23097) Use of int in maxseg socket option. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor7 (pid 23108) Use of int in maxseg socket option. Use struct sctp_assoc_value instead QAT: Invalid ioctl audit: type=1326 audit(1506417072.455:315): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=23156 comm="syz-executor7" exe="/root/syz-executor7" sig=31 arch=40000003 syscall=240 compat=1 ip=0xf7fb9c79 code=0xffff0000 audit: type=1326 audit(1506417072.482:316): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=23156 comm="syz-executor7" exe="/root/syz-executor7" sig=31 arch=40000003 syscall=240 compat=1 ip=0xf7fb9c79 code=0xffff0000 audit: type=1326 audit(1506417072.538:317): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=23175 comm=706FFF69785F616356FF07636365 exe="/root/syz-executor7" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf7fb9c79 code=0x7ffc0000 audit: type=1326 audit(1506417072.539:318): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=23175 comm=706FFF69785F616356FF07636365 exe="/root/syz-executor7" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf7fb9c79 code=0x7ffc0000 audit: type=1326 audit(1506417072.539:319): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=23175 comm=706FFF69785F616356FF07636365 exe="/root/syz-executor7" sig=0 arch=40000003 syscall=192 compat=1 ip=0xf7fb9c79 code=0x7ffc0000 audit: type=1326 audit(1506417072.540:320): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=23175 comm=706FFF69785F616356FF07636365 exe="/root/syz-executor7" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf7fb9c79 code=0x7ffc0000 audit: type=1326 audit(1506417072.540:321): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=23175 comm=706FFF69785F616356FF07636365 exe="/root/syz-executor7" sig=0 arch=40000003 syscall=359 compat=1 ip=0xf7fb9c79 code=0x7ffc0000 audit: type=1326 audit(1506417072.541:322): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=23175 comm=706FFF69785F616356FF07636365 exe="/root/syz-executor7" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf7fb9c79 code=0x7ffc0000 QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl kauditd_printk_skb: 1506 callbacks suppressed audit: type=1326 audit(1506417074.209:1829): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=23642 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf7f6bc79 code=0x7ffc0000 audit: type=1326 audit(1506417074.209:1830): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=23642 comm=706FFF69785F616356FF07636365 exe="/root/syz-executor5" sig=0 arch=40000003 syscall=192 compat=1 ip=0xf7f6bc79 code=0x7ffc0000 audit: type=1326 audit(1506417074.209:1831): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=23642 comm=706FFF69785F616356FF07636365 exe="/root/syz-executor5" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf7f6bc79 code=0x7ffc0000 audit: type=1326 audit(1506417074.209:1832): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=23642 comm=706FFF69785F616356FF07636365 exe="/root/syz-executor5" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf7f6bc79 code=0x7ffc0000 audit: type=1326 audit(1506417074.236:1833): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=23642 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=40000003 syscall=359 compat=1 ip=0xf7f6bc79 code=0x7ffc0000 audit: type=1326 audit(1506417074.237:1834): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=23642 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf7f6bc79 code=0x7ffc0000 audit: type=1326 audit(1506417074.237:1835): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=23642 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf7f6bc79 code=0x7ffc0000 audit: type=1326 audit(1506417074.238:1836): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=23642 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=40000003 syscall=336 compat=1 ip=0xf7f6bc79 code=0x7ffc0000 audit: type=1326 audit(1506417074.238:1837): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=23642 comm=706FFF69785F616356FF07636365 exe="/root/syz-executor5" sig=0 arch=40000003 syscall=54 compat=1 ip=0xf7f6bc79 code=0x7ffc0000 audit: type=1326 audit(1506417074.238:1838): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=23642 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf7f6bc79 code=0x7ffc0000 device syz6 left promiscuous mode FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 24409 Comm: syz-executor4 Not tainted 4.14.0-rc2+ #11 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_trace+0x4b/0x750 mm/slab.c:3625 kmalloc include/linux/slab.h:493 [inline] kzalloc include/linux/slab.h:666 [inline] igmpv3_add_delrec net/ipv4/igmp.c:1120 [inline] igmp_group_dropped+0x5c8/0xd10 net/ipv4/igmp.c:1256 ip_mc_dec_group+0x192/0x470 net/ipv4/igmp.c:1626 ip_mc_drop_socket+0x145/0x230 net/ipv4/igmp.c:2625 inet_release+0x4e/0x1c0 net/ipv4/af_inet.c:411 sock_release+0x8d/0x1e0 net/socket.c:597 sock_close+0x16/0x20 net/socket.c:1126 __fput+0x333/0x7f0 fs/file_table.c:210 ____fput+0x15/0x20 fs/file_table.c:244 task_work_run+0x199/0x270 kernel/task_work.c:112 tracehook_notify_resume include/linux/tracehook.h:191 [inline] exit_to_usermode_loop+0x296/0x310 arch/x86/entry/common.c:162 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:266 [inline] do_syscall_32_irqs_on arch/x86/entry/common.c:335 [inline] do_fast_syscall_32+0x83e/0xf05 arch/x86/entry/common.c:391 entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:124 RIP: 0023:0xf7fa4c79 RSP: 002b:00000000f77a005c EFLAGS: 00000296 ORIG_RAX: 000000000000014a RAX: 0000000000000005 RBX: 0000000000000006 RCX: 0000000000000005 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 24474 Comm: syz-executor5 Not tainted 4.14.0-rc2+ #11 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 audit_buffer_alloc kernel/audit.c:1617 [inline] audit_log_start+0x4cb/0xa10 kernel/audit.c:1735 __audit_seccomp+0x30/0x1c0 kernel/auditsc.c:2444 seccomp_log kernel/seccomp.c:582 [inline] __seccomp_filter+0xb6a/0xec0 kernel/seccomp.c:716 __secure_computing+0xa6/0x320 kernel/seccomp.c:779 syscall_trace_enter+0x420/0x1290 arch/x86/entry/common.c:119 do_syscall_32_irqs_on arch/x86/entry/common.c:319 [inline] do_fast_syscall_32+0x72b/0xf05 arch/x86/entry/common.c:391 entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:124 RIP: 0023:0xf7f6bc79 RSP: 002b:00000000f776705c EFLAGS: 00000296 ORIG_RAX: 00000000000000c0 RAX: ffffffffffffffda RBX: 0000000020000000 RCX: 0000000000fff000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000ffffffff RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl kauditd_printk_skb: 2184 callbacks suppressed audit: type=1326 audit(1506417079.211:4021): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=25345 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=40000003 syscall=355 compat=1 ip=0xf7f6bc79 code=0x7ffc0000 audit: type=1326 audit(1506417079.306:4022): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=25409 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf7f6bc79 code=0x7ffc0000 audit: type=1326 audit(1506417079.306:4023): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=25409 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf7f6bc79 code=0x7ffc0000 audit: type=1326 audit(1506417079.307:4024): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=25409 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=40000003 syscall=287 compat=1 ip=0xf7f6bc79 code=0x7ffc0000 audit: type=1326 audit(1506417079.308:4025): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=25409 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf7f6bc79 code=0x7ffc0000 audit: type=1326 audit(1506417079.308:4026): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=25409 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf7f6bc79 code=0x7ffc0000 QAT: Invalid ioctl QAT: Invalid ioctl audit: type=1326 audit(1506417079.309:4027): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=25409 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=40000003 syscall=295 compat=1 ip=0xf7f6bc79 code=0x7ffc0000 audit: type=1326 audit(1506417079.309:4028): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=25409 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf7f6bc79 code=0x7ffc0000 audit: type=1326 audit(1506417079.309:4029): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=25409 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=40000003 syscall=240 compat=1 ip=0xf7f6bc79 code=0x7ffc0000 audit: type=1326 audit(1506417079.309:4030): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=25409 comm="syz-executor5" exe="/root/syz-executor5" sig=0 arch=40000003 syscall=54 compat=1 ip=0xf7f6bc79 code=0x7ffc0000