[....] Starting enhanced syslogd: rsyslogd[ 12.914741] audit: type=1400 audit(1517046743.467:5): avc: denied { syslog } for pid=3497 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 19.470887] audit: type=1400 audit(1517046750.023:6): avc: denied { map } for pid=3638 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.56' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 343.319133] audit: type=1400 audit(1517047073.871:7): avc: denied { map } for pid=3655 comm="syzkaller806465" path="/root/syzkaller806465773" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 376.898430] ================================================================== [ 376.905973] BUG: KASAN: use-after-free in __lock_acquire+0x3d4d/0x3e00 [ 376.912639] Read of size 8 at addr ffff8801c7f9e9a0 by task syzkaller806465/27857 [ 376.920263] [ 376.921880] CPU: 0 PID: 27857 Comm: syzkaller806465 Not tainted 4.15.0-rc9+ #282 [ 376.929401] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 376.938795] Call Trace: [ 376.941453] dump_stack+0x194/0x257 [ 376.945079] ? arch_local_irq_restore+0x53/0x53 [ 376.949766] ? show_regs_print_info+0x18/0x18 [ 376.954259] ? check_noncircular+0x20/0x20 [ 376.958480] ? __lock_acquire+0x3d4d/0x3e00 [ 376.962852] print_address_description+0x73/0x250 [ 376.967669] ? __lock_acquire+0x3d4d/0x3e00 [ 376.971963] kasan_report+0x25b/0x340 [ 376.975749] __asan_report_load8_noabort+0x14/0x20 [ 376.980665] __lock_acquire+0x3d4d/0x3e00 [ 376.984794] ? check_noncircular+0x20/0x20 [ 376.989063] ? remove_wait_queue+0x81/0x350 [ 376.993365] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 376.998531] ? lock_downgrade+0x980/0x980 [ 377.002701] ? __schedule+0x2060/0x2060 [ 377.006657] ? find_held_lock+0x35/0x1d0 [ 377.010707] ? wait_for_completion+0xe0/0x770 [ 377.015176] ? lock_downgrade+0x980/0x980 [ 377.019306] ? lock_release+0xa40/0xa40 [ 377.023260] ? usleep_range+0x190/0x190 [ 377.027263] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 377.033129] ? kasan_slab_free+0x71/0xc0 [ 377.037172] ? do_raw_spin_trylock+0x190/0x190 [ 377.041728] ? _raw_spin_unlock_irq+0x27/0x70 [ 377.046197] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 377.051192] ? trace_hardirqs_on+0xd/0x10 [ 377.055318] ? _raw_spin_unlock_irq+0x27/0x70 [ 377.059789] ? wait_for_completion+0xe0/0x770 [ 377.064258] ? wait_for_completion_interruptible+0x7e0/0x7e0 [ 377.070037] ? __lockdep_init_map+0xe4/0x650 [ 377.074477] ? llist_add_batch+0xf3/0x180 [ 377.078601] lock_acquire+0x1d5/0x580 [ 377.082383] ? lock_acquire+0x1d5/0x580 [ 377.086332] ? remove_wait_queue+0x81/0x350 [ 377.090627] ? wake_up_process+0x10/0x20 [ 377.094661] ? lock_release+0xa40/0xa40 [ 377.098679] ? vhost_work_queue+0xc0/0xc0 [ 377.102806] ? vhost_poll_stop+0x90/0x90 [ 377.106855] ? wait_for_completion+0x770/0x770 [ 377.111418] _raw_spin_lock_irqsave+0x96/0xc0 [ 377.115982] ? remove_wait_queue+0x81/0x350 [ 377.120287] remove_wait_queue+0x81/0x350 [ 377.124799] ? add_wait_queue+0x290/0x290 [ 377.128923] ? vhost_poll_flush+0x3f/0x60 [ 377.133047] ? vhost_net_flush+0x209/0x2a0 [ 377.137261] vhost_dev_stop+0x15c/0x2a0 [ 377.141217] ? vhost_net_compat_ioctl+0x30/0x30 [ 377.145866] vhost_net_release+0x6e/0x190 [ 377.150078] __fput+0x327/0x7e0 [ 377.153345] ? fput+0x140/0x140 [ 377.156599] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 377.162471] ? _raw_spin_unlock_irq+0x27/0x70 [ 377.166948] ____fput+0x15/0x20 [ 377.170259] task_work_run+0x199/0x270 [ 377.174128] ? task_work_cancel+0x210/0x210 [ 377.178433] ? _raw_spin_unlock+0x22/0x30 [ 377.182557] ? switch_task_namespaces+0x87/0xc0 [ 377.187244] do_exit+0x9bb/0x1ad0 [ 377.190679] ? mm_update_next_owner+0x930/0x930 [ 377.195327] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 377.200487] ? __might_sleep+0x95/0x190 [ 377.204435] ? find_held_lock+0x35/0x1d0 [ 377.208526] ? futex_wait+0x402/0x9a0 [ 377.212308] ? lock_downgrade+0x980/0x980 [ 377.216437] ? __unqueue_futex+0x1c0/0x290 [ 377.220647] ? lock_release+0xa40/0xa40 [ 377.224594] ? fault_in_user_writeable+0x90/0x90 [ 377.229331] ? do_raw_spin_trylock+0x190/0x190 [ 377.233884] ? futex_wake+0x680/0x680 [ 377.237659] ? check_noncircular+0x20/0x20 [ 377.241865] ? drop_futex_key_refs.isra.12+0x63/0xb0 [ 377.246943] ? futex_wait+0x6a9/0x9a0 [ 377.250725] ? find_held_lock+0x35/0x1d0 [ 377.254760] ? get_signal+0x7ae/0x16c0 [ 377.258620] ? lock_downgrade+0x980/0x980 [ 377.262752] do_group_exit+0x149/0x400 [ 377.266612] ? do_raw_spin_trylock+0x190/0x190 [ 377.271169] ? SyS_exit+0x30/0x30 [ 377.274606] ? _raw_spin_unlock_irq+0x27/0x70 [ 377.279081] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 377.284077] get_signal+0x73f/0x16c0 [ 377.287770] ? ptrace_notify+0x130/0x130 [ 377.291804] ? exit_robust_list+0x240/0x240 [ 377.296108] ? __kernel_text_address+0xd/0x40 [ 377.300629] ? unwind_get_return_address+0x61/0xa0 [ 377.305550] ? __save_stack_trace+0x7e/0xd0 [ 377.309896] ? depot_save_stack+0x12c/0x490 [ 377.314242] do_signal+0x90/0x1eb0 [ 377.317759] ? save_stack+0x43/0xd0 [ 377.321358] ? kasan_slab_free+0x71/0xc0 [ 377.325387] ? kmem_cache_free+0x83/0x2a0 [ 377.329508] ? putname+0xee/0x130 [ 377.332937] ? do_sys_open+0x31b/0x6d0 [ 377.336792] ? SyS_openat+0x30/0x40 [ 377.340389] ? entry_SYSCALL_64_fastpath+0x29/0xa0 [ 377.345300] ? setup_sigcontext+0x7d0/0x7d0 [ 377.349610] ? free_obj_work+0x690/0x690 [ 377.353672] ? __fd_install+0x288/0x740 [ 377.357624] ? get_unused_fd_flags+0x190/0x190 [ 377.362175] ? may_open_dev+0xe0/0xe0 [ 377.366003] ? rcu_pm_notify+0xc0/0xc0 [ 377.369911] ? exit_to_usermode_loop+0x8c/0x310 [ 377.374555] exit_to_usermode_loop+0x214/0x310 [ 377.379113] ? putname+0xee/0x130 [ 377.382550] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 377.388067] syscall_return_slowpath+0x490/0x550 [ 377.392796] ? prepare_exit_to_usermode+0x340/0x340 [ 377.397783] ? entry_SYSCALL_64_fastpath+0x73/0xa0 [ 377.402683] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 377.407672] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 377.412405] entry_SYSCALL_64_fastpath+0x9e/0xa0 [ 377.417138] RIP: 0033:0x445d89 [ 377.420304] RSP: 002b:00007ff768445da8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 377.427985] RAX: fffffffffffffe00 RBX: 00000000006dbc24 RCX: 0000000000445d89 [ 377.435235] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000006dbc24 [ 377.442484] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 377.449730] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc20 [ 377.456982] R13: 6f68762f7665642f R14: 00007ff7684469c0 R15: 0000000000000007 [ 377.464239] [ 377.465887] Allocated by task 27857: [ 377.469582] save_stack+0x43/0xd0 [ 377.473016] kasan_kmalloc+0xad/0xe0 [ 377.476708] kmem_cache_alloc_trace+0x136/0x750 [ 377.481398] eventfd_file_create.part.3+0x96/0x250 [ 377.486307] SyS_eventfd+0x2c/0x80 [ 377.489824] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 377.494543] [ 377.496144] Freed by task 27857: [ 377.499482] save_stack+0x43/0xd0 [ 377.502904] kasan_slab_free+0x71/0xc0 [ 377.506762] kfree+0xd6/0x260 [ 377.509848] eventfd_ctx_put+0x26/0x30 [ 377.513710] eventfd_release+0x52/0x60 [ 377.517571] __fput+0x327/0x7e0 [ 377.520831] ____fput+0x15/0x20 [ 377.524093] task_work_run+0x199/0x270 [ 377.527955] do_exit+0x9bb/0x1ad0 [ 377.531388] do_group_exit+0x149/0x400 [ 377.535245] get_signal+0x73f/0x16c0 [ 377.538931] do_signal+0x90/0x1eb0 [ 377.542442] exit_to_usermode_loop+0x214/0x310 [ 377.547000] syscall_return_slowpath+0x490/0x550 [ 377.551734] entry_SYSCALL_64_fastpath+0x9e/0xa0 [ 377.556461] [ 377.558079] The buggy address belongs to the object at ffff8801c7f9e980 [ 377.558079] which belongs to the cache kmalloc-96 of size 96 [ 377.570537] The buggy address is located 32 bytes inside of [ 377.570537] 96-byte region [ffff8801c7f9e980, ffff8801c7f9e9e0) [ 377.582219] The buggy address belongs to the page: [ 377.587128] page:ffffea00071fe780 count:1 mapcount:0 mapping:ffff8801c7f9e000 index:0x0 [ 377.595240] flags: 0x2fffc0000000100(slab) [ 377.599450] raw: 02fffc0000000100 ffff8801c7f9e000 0000000000000000 0000000100000020 [ 377.607302] raw: ffffea00071f7360 ffffea00071c3760 ffff8801dac004c0 0000000000000000 [ 377.615157] page dumped because: kasan: bad access detected [ 377.620849] [ 377.622444] Memory state around the buggy address: [ 377.627344] ffff8801c7f9e880: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [ 377.634673] ffff8801c7f9e900: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [ 377.642004] >ffff8801c7f9e980: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [ 377.649339] ^ [ 377.653718] ffff8801c7f9ea00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [ 377.661054] ffff8801c7f9ea80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [ 377.668388] ================================================================== [ 377.675719] Disabling lock debugging due to kernel taint [ 377.681148] Kernel panic - not syncing: panic_on_warn set ... [ 377.681148] [ 377.688493] CPU: 0 PID: 27857 Comm: syzkaller806465 Tainted: G B 4.15.0-rc9+ #282 [ 377.697296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 377.706621] Call Trace: [ 377.709196] dump_stack+0x194/0x257 [ 377.712804] ? arch_local_irq_restore+0x53/0x53 [ 377.717451] ? kasan_end_report+0x32/0x50 [ 377.721573] ? lock_downgrade+0x980/0x980 [ 377.725689] ? vsnprintf+0x1ed/0x1900 [ 377.729465] ? __lock_acquire+0x3ca0/0x3e00 [ 377.733760] panic+0x1e4/0x41c [ 377.736928] ? refcount_error_report+0x214/0x214 [ 377.741654] ? add_taint+0x40/0x50 [ 377.745172] ? add_taint+0x1c/0x50 [ 377.748687] ? __lock_acquire+0x3d4d/0x3e00 [ 377.752991] kasan_end_report+0x50/0x50 [ 377.756948] kasan_report+0x144/0x340 [ 377.760732] __asan_report_load8_noabort+0x14/0x20 [ 377.765636] __lock_acquire+0x3d4d/0x3e00 [ 377.769768] ? check_noncircular+0x20/0x20 [ 377.773983] ? remove_wait_queue+0x81/0x350 [ 377.778279] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 377.783450] ? lock_downgrade+0x980/0x980 [ 377.787571] ? __schedule+0x2060/0x2060 [ 377.791517] ? find_held_lock+0x35/0x1d0 [ 377.795552] ? wait_for_completion+0xe0/0x770 [ 377.800028] ? lock_downgrade+0x980/0x980 [ 377.804155] ? lock_release+0xa40/0xa40 [ 377.808108] ? usleep_range+0x190/0x190 [ 377.812060] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 377.817919] ? kasan_slab_free+0x71/0xc0 [ 377.821951] ? do_raw_spin_trylock+0x190/0x190 [ 377.826511] ? _raw_spin_unlock_irq+0x27/0x70 [ 377.830991] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 377.835986] ? trace_hardirqs_on+0xd/0x10 [ 377.840109] ? _raw_spin_unlock_irq+0x27/0x70 [ 377.844574] ? wait_for_completion+0xe0/0x770 [ 377.849046] ? wait_for_completion_interruptible+0x7e0/0x7e0 [ 377.854834] ? __lockdep_init_map+0xe4/0x650 [ 377.859233] ? llist_add_batch+0xf3/0x180 [ 377.863362] lock_acquire+0x1d5/0x580 [ 377.867134] ? lock_acquire+0x1d5/0x580 [ 377.871084] ? remove_wait_queue+0x81/0x350 [ 377.875391] ? wake_up_process+0x10/0x20 [ 377.879438] ? lock_release+0xa40/0xa40 [ 377.883389] ? vhost_work_queue+0xc0/0xc0 [ 377.887512] ? vhost_poll_stop+0x90/0x90 [ 377.891555] ? wait_for_completion+0x770/0x770 [ 377.896123] _raw_spin_lock_irqsave+0x96/0xc0 [ 377.900594] ? remove_wait_queue+0x81/0x350 [ 377.904889] remove_wait_queue+0x81/0x350 [ 377.909028] ? add_wait_queue+0x290/0x290 [ 377.913165] ? vhost_poll_flush+0x3f/0x60 [ 377.917298] ? vhost_net_flush+0x209/0x2a0 [ 377.921504] vhost_dev_stop+0x15c/0x2a0 [ 377.925455] ? vhost_net_compat_ioctl+0x30/0x30 [ 377.930094] vhost_net_release+0x6e/0x190 [ 377.934217] __fput+0x327/0x7e0 [ 377.937467] ? fput+0x140/0x140 [ 377.940718] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 377.946579] ? _raw_spin_unlock_irq+0x27/0x70 [ 377.951054] ____fput+0x15/0x20 [ 377.954307] task_work_run+0x199/0x270 [ 377.958169] ? task_work_cancel+0x210/0x210 [ 377.962465] ? _raw_spin_unlock+0x22/0x30 [ 377.966583] ? switch_task_namespaces+0x87/0xc0 [ 377.971223] do_exit+0x9bb/0x1ad0 [ 377.974650] ? mm_update_next_owner+0x930/0x930 [ 377.979300] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 377.984467] ? __might_sleep+0x95/0x190 [ 377.988411] ? find_held_lock+0x35/0x1d0 [ 377.992453] ? futex_wait+0x402/0x9a0 [ 377.996227] ? lock_downgrade+0x980/0x980 [ 378.000346] ? __unqueue_futex+0x1c0/0x290 [ 378.004552] ? lock_release+0xa40/0xa40 [ 378.008495] ? fault_in_user_writeable+0x90/0x90 [ 378.013231] ? do_raw_spin_trylock+0x190/0x190 [ 378.017783] ? futex_wake+0x680/0x680 [ 378.021556] ? check_noncircular+0x20/0x20 [ 378.025764] ? drop_futex_key_refs.isra.12+0x63/0xb0 [ 378.030836] ? futex_wait+0x6a9/0x9a0 [ 378.034611] ? find_held_lock+0x35/0x1d0 [ 378.038646] ? get_signal+0x7ae/0x16c0 [ 378.042513] ? lock_downgrade+0x980/0x980 [ 378.046640] do_group_exit+0x149/0x400 [ 378.050502] ? do_raw_spin_trylock+0x190/0x190 [ 378.055058] ? SyS_exit+0x30/0x30 [ 378.058483] ? _raw_spin_unlock_irq+0x27/0x70 [ 378.062979] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 378.067976] get_signal+0x73f/0x16c0 [ 378.071664] ? ptrace_notify+0x130/0x130 [ 378.075698] ? exit_robust_list+0x240/0x240 [ 378.079993] ? __kernel_text_address+0xd/0x40 [ 378.084472] ? unwind_get_return_address+0x61/0xa0 [ 378.089375] ? __save_stack_trace+0x7e/0xd0 [ 378.093681] ? depot_save_stack+0x12c/0x490 [ 378.097981] do_signal+0x90/0x1eb0 [ 378.101503] ? save_stack+0x43/0xd0 [ 378.105106] ? kasan_slab_free+0x71/0xc0 [ 378.109143] ? kmem_cache_free+0x83/0x2a0 [ 378.113266] ? putname+0xee/0x130 [ 378.116689] ? do_sys_open+0x31b/0x6d0 [ 378.120552] ? SyS_openat+0x30/0x40 [ 378.124149] ? entry_SYSCALL_64_fastpath+0x29/0xa0 [ 378.129062] ? setup_sigcontext+0x7d0/0x7d0 [ 378.133361] ? free_obj_work+0x690/0x690 [ 378.137393] ? __fd_install+0x288/0x740 [ 378.141351] ? get_unused_fd_flags+0x190/0x190 [ 378.145905] ? may_open_dev+0xe0/0xe0 [ 378.149681] ? rcu_pm_notify+0xc0/0xc0 [ 378.153542] ? exit_to_usermode_loop+0x8c/0x310 [ 378.158188] exit_to_usermode_loop+0x214/0x310 [ 378.162753] ? putname+0xee/0x130 [ 378.166181] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 378.171690] syscall_return_slowpath+0x490/0x550 [ 378.176417] ? prepare_exit_to_usermode+0x340/0x340 [ 378.181408] ? entry_SYSCALL_64_fastpath+0x73/0xa0 [ 378.186310] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 378.191300] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 378.196033] entry_SYSCALL_64_fastpath+0x9e/0xa0 [ 378.200763] RIP: 0033:0x445d89 [ 378.203921] RSP: 002b:00007ff768445da8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 378.211610] RAX: fffffffffffffe00 RBX: 00000000006dbc24 RCX: 0000000000445d89 [ 378.218851] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000006dbc24 [ 378.226092] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 378.233335] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc20 [ 378.240576] R13: 6f68762f7665642f R14: 00007ff7684469c0 R15: 0000000000000007 [ 378.248279] Dumping ftrace buffer: [ 378.251789] (ftrace buffer empty) [ 378.255466] Kernel Offset: disabled [ 378.259061] Rebooting in 86400 seconds..