[....] Starting enhanced syslogd: rsyslogd[ 11.813439] audit: type=1400 audit(1516487645.737:5): avc: denied { syslog } for pid=3512 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: [ 19.229124] audit: type=1400 audit(1516487653.152:6): avc: denied { map } for pid=3651 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 '10.128.0.44' (ECDSA) to the list of known hosts. net.ipv6.conf.syz3.accept_dad = 0 [ 25.484039] audit: type=1400 audit(1516487659.407:7): avc: denied { map } for pid=3665 comm="syzkaller752807" path="/root/syzkaller752807349" 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 net.ipv6.conf.syz7.accept_dad = 0 net.ipv6.conf.syz3.router_solicitations = 0 net.ipv6.conf.syz7.router_solicitations = 0 net.ipv6.conf.syz5.accept_dad = 0 net.ipv6.conf.syz5.router_solicitations = 0 net.ipv6.conf.syz1.accept_dad = 0 net.ipv6.conf.syz1.router_solicitations = 0 net.ipv6.conf.syz6.accept_dad = 0 net.ipv6.conf.syz6.router_solicitations = 0 net.ipv6.conf.syz2.accept_dad = 0 net.ipv6.conf.syz2.router_solicitations = 0 net.ipv6.conf.syz4.accept_dad = 0 net.ipv6.conf.syz4.router_solicitations = 0 net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported [ 26.519638] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready RTNETLINK answers: Operation not supported [ 26.611615] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready RTNETLINK answers: No buffer space available RTNETLINK answers: Operation not supported RTNETLINK answers: No buffer space available RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported [ 26.717321] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 26.743957] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready RTNETLINK answers: No buffer space available RTNETLINK answers: No buffer space available RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported [ 26.881236] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready RTNETLINK answers: Operation not supported RTNETLINK answers: No buffer space available RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported [ 26.986414] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 27.010558] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready RTNETLINK answers: Operation not supported RTNETLINK answers: No buffer space available RTNETLINK answers: Operation not supported RTNETLINK answers: No buffer space available RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported [ 27.146816] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready RTNETLINK answers: Operation not supported RTNETLINK answers: No buffer space available RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Invalid argument RTNETLINK answers: Operation not supported RTNETLINK answers: Invalid argument RTNETLINK answers: Operation not supported RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Operation not supported RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument executing program RTNETLINK answers: Invalid argument executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 32.888211] ================================================================== [ 32.895623] BUG: KASAN: use-after-free in __lock_acquire+0x3d4d/0x3e00 [ 32.902277] Read of size 8 at addr ffff8801d038c8a0 by task syzkaller752807/7857 [ 32.909790] [ 32.911413] CPU: 0 PID: 7857 Comm: syzkaller752807 Not tainted 4.15.0-rc8-mm1+ #59 [ 32.919108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.928450] Call Trace: [ 32.931030] dump_stack+0x194/0x257 [ 32.934660] ? arch_local_irq_restore+0x53/0x53 [ 32.939318] ? show_regs_print_info+0x18/0x18 [ 32.943801] ? __lock_acquire+0x3d4d/0x3e00 [ 32.948099] print_address_description+0x73/0x250 [ 32.952925] ? __lock_acquire+0x3d4d/0x3e00 [ 32.957228] kasan_report+0x23b/0x360 [ 32.961013] __asan_report_load8_noabort+0x14/0x20 [ 32.965924] __lock_acquire+0x3d4d/0x3e00 [ 32.970056] ? remove_wait_queue+0x81/0x350 [ 32.974358] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 32.979529] ? lock_downgrade+0x980/0x980 [ 32.983652] ? __schedule+0x2060/0x2060 [ 32.987608] ? find_held_lock+0x35/0x1d0 [ 32.991642] ? wait_for_completion+0xe0/0x770 [ 32.996112] ? lock_downgrade+0x980/0x980 [ 33.000245] ? lock_release+0xa40/0xa40 [ 33.004204] ? usleep_range+0x190/0x190 [ 33.008153] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 33.014024] ? do_raw_spin_trylock+0x190/0x190 [ 33.018596] ? _raw_spin_unlock_irq+0x27/0x70 [ 33.023066] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 33.028059] ? trace_hardirqs_on+0xd/0x10 [ 33.032192] ? _raw_spin_unlock_irq+0x27/0x70 [ 33.036675] ? wait_for_completion+0xe0/0x770 [ 33.041144] ? wait_for_completion_interruptible+0x7e0/0x7e0 [ 33.046918] ? __lockdep_init_map+0xe4/0x650 [ 33.051301] ? llist_add_batch+0xf3/0x180 [ 33.055427] lock_acquire+0x1d5/0x580 [ 33.059202] ? lock_acquire+0x1d5/0x580 [ 33.063154] ? remove_wait_queue+0x81/0x350 [ 33.067458] ? wake_up_process+0x10/0x20 [ 33.071506] ? lock_release+0xa40/0xa40 [ 33.075461] ? vhost_work_queue+0xc0/0xc0 [ 33.079587] ? vhost_poll_stop+0x90/0x90 [ 33.083631] ? wait_for_completion+0x770/0x770 [ 33.088216] _raw_spin_lock_irqsave+0x96/0xc0 [ 33.092692] ? remove_wait_queue+0x81/0x350 [ 33.096992] remove_wait_queue+0x81/0x350 [ 33.101120] ? add_wait_queue+0x290/0x290 [ 33.105245] ? vhost_poll_flush+0x3f/0x60 [ 33.109370] ? vhost_net_flush+0x209/0x2a0 [ 33.113579] vhost_dev_stop+0x15c/0x2a0 [ 33.117535] ? vhost_net_compat_ioctl+0x30/0x30 [ 33.122185] vhost_net_release+0x6e/0x190 [ 33.126329] __fput+0x327/0x7e0 [ 33.129590] ? fput+0x140/0x140 [ 33.132843] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 33.138711] ? _raw_spin_unlock_irq+0x27/0x70 [ 33.143189] ____fput+0x15/0x20 [ 33.146445] task_work_run+0x199/0x270 [ 33.150306] ? task_work_cancel+0x210/0x210 [ 33.154611] ? _raw_spin_unlock+0x22/0x30 [ 33.158746] ? switch_task_namespaces+0x87/0xc0 [ 33.163396] do_exit+0x9bb/0x1ad0 [ 33.166845] ? mm_update_next_owner+0x930/0x930 [ 33.171513] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 33.176683] ? __might_sleep+0x95/0x190 [ 33.180640] ? find_held_lock+0x35/0x1d0 [ 33.184680] ? lock_downgrade+0x980/0x980 [ 33.188809] ? __unqueue_futex+0x1c0/0x290 [ 33.193031] ? lock_release+0xa40/0xa40 [ 33.196987] ? fault_in_user_writeable+0x90/0x90 [ 33.201716] ? do_raw_spin_trylock+0x190/0x190 [ 33.206271] ? futex_wake+0x680/0x680 [ 33.210048] ? mmdrop+0x18/0x30 [ 33.213299] ? check_noncircular+0x20/0x20 [ 33.217509] ? futex_wait+0x6a9/0x9a0 [ 33.221291] ? memset+0x31/0x40 [ 33.224545] ? find_held_lock+0x35/0x1d0 [ 33.228580] ? get_signal+0x7a9/0x16d0 [ 33.232450] ? lock_downgrade+0x980/0x980 [ 33.236580] do_group_exit+0x149/0x400 [ 33.240442] ? do_raw_spin_trylock+0x190/0x190 [ 33.245001] ? SyS_exit+0x30/0x30 [ 33.248436] ? _raw_spin_unlock_irq+0x27/0x70 [ 33.252906] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 33.257895] get_signal+0x73a/0x16d0 [ 33.261592] ? ptrace_notify+0x130/0x130 [ 33.265636] ? exit_robust_list+0x240/0x240 [ 33.269929] ? avc_has_extended_perms+0x7fa/0x12c0 [ 33.274835] ? find_held_lock+0x35/0x1d0 [ 33.278878] ? vhost_net_stop_vq+0xf0/0xf0 [ 33.283085] ? avc_ss_reset+0x110/0x110 [ 33.287034] ? lock_downgrade+0x980/0x980 [ 33.291168] do_signal+0x90/0x1eb0 [ 33.294694] ? __lock_is_held+0xb6/0x140 [ 33.298728] ? setup_sigcontext+0x7d0/0x7d0 [ 33.303040] ? exit_to_usermode_loop+0x8c/0x2f0 [ 33.307698] exit_to_usermode_loop+0x258/0x2f0 [ 33.312260] ? ioctl_preallocate+0x2b0/0x2b0 [ 33.316644] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 33.322154] ? selinux_capable+0x40/0x40 [ 33.326194] syscall_return_slowpath+0x490/0x550 [ 33.330926] ? prepare_exit_to_usermode+0x340/0x340 [ 33.335917] ? entry_SYSCALL_64_fastpath+0x73/0xa0 [ 33.340823] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 33.345822] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 33.350558] entry_SYSCALL_64_fastpath+0x9e/0xa0 [ 33.355284] RIP: 0033:0x44b529 [ 33.358450] RSP: 002b:00007fe112b63da8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 33.366126] RAX: fffffffffffffe00 RBX: 00000000006ddc54 RCX: 000000000044b529 [ 33.373367] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000006ddc54 [ 33.380620] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 33.387862] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006ddc50 [ 33.395108] R13: 6f68762f7665642f R14: 00007fe112b649c0 R15: 0000000000000007 [ 33.402370] [ 33.403970] Allocated by task 7839: [ 33.407578] save_stack+0x43/0xd0 [ 33.411004] kasan_kmalloc+0xad/0xe0 [ 33.414696] kmem_cache_alloc_trace+0x136/0x750 [ 33.419339] eventfd_file_create.part.3+0x96/0x250 [ 33.424240] SyS_eventfd+0x2c/0x80 [ 33.427755] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 33.432478] [ 33.434080] Freed by task 7857: [ 33.437344] save_stack+0x43/0xd0 [ 33.440768] __kasan_slab_free+0x11a/0x170 [ 33.444975] kasan_slab_free+0xe/0x10 [ 33.448744] kfree+0xd9/0x260 [ 33.451821] eventfd_ctx_put+0x26/0x30 [ 33.455682] eventfd_release+0x52/0x60 [ 33.459547] __fput+0x327/0x7e0 [ 33.462800] ____fput+0x15/0x20 [ 33.466057] task_work_run+0x199/0x270 [ 33.469922] do_exit+0x9bb/0x1ad0 [ 33.473349] do_group_exit+0x149/0x400 [ 33.478053] get_signal+0x73a/0x16d0 [ 33.481741] do_signal+0x90/0x1eb0 [ 33.485257] exit_to_usermode_loop+0x258/0x2f0 [ 33.489816] syscall_return_slowpath+0x490/0x550 [ 33.494549] entry_SYSCALL_64_fastpath+0x9e/0xa0 [ 33.499271] [ 33.500873] The buggy address belongs to the object at ffff8801d038c880 [ 33.500873] which belongs to the cache kmalloc-96 of size 96 [ 33.513342] The buggy address is located 32 bytes inside of [ 33.513342] 96-byte region [ffff8801d038c880, ffff8801d038c8e0) [ 33.525033] The buggy address belongs to the page: [ 33.529947] page:ffffea000740e300 count:1 mapcount:0 mapping:ffff8801d038c000 index:0x0 [ 33.538066] flags: 0x2fffc0000000100(slab) [ 33.542274] raw: 02fffc0000000100 ffff8801d038c000 0000000000000000 0000000100000020 [ 33.550128] raw: ffffea00071d6160 ffffea00071b53e0 ffff8801dac004c0 0000000000000000 [ 33.557985] page dumped because: kasan: bad access detected [ 33.563669] [ 33.565272] Memory state around the buggy address: [ 33.570173] ffff8801d038c780: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [ 33.577502] ffff8801d038c800: 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc [ 33.584834] >ffff8801d038c880: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [ 33.592170] ^ [ 33.596547] ffff8801d038c900: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [ 33.603899] ffff8801d038c980: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [ 33.611227] ================================================================== [ 33.618554] Disabling lock debugging due to kernel taint [ 33.623975] Kernel panic - not syncing: panic_on_warn set ... [ 33.623975] [ 33.631311] CPU: 0 PID: 7857 Comm: syzkaller752807 Tainted: G B 4.15.0-rc8-mm1+ #59 [ 33.640289] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.649617] Call Trace: [ 33.652186] dump_stack+0x194/0x257 [ 33.655789] ? arch_local_irq_restore+0x53/0x53 [ 33.660443] ? kasan_end_report+0x32/0x50 [ 33.664574] ? lock_downgrade+0x980/0x980 [ 33.668694] ? vsnprintf+0x1ed/0x1900 [ 33.672470] ? __lock_acquire+0x3cc0/0x3e00 [ 33.676774] panic+0x1e4/0x41c [ 33.679954] ? refcount_error_report+0x214/0x214 [ 33.684686] ? add_taint+0x40/0x50 [ 33.688206] ? add_taint+0x1c/0x50 [ 33.691729] ? __lock_acquire+0x3d4d/0x3e00 [ 33.696039] kasan_end_report+0x50/0x50 [ 33.699996] kasan_report+0x148/0x360 [ 33.703782] __asan_report_load8_noabort+0x14/0x20 [ 33.708692] __lock_acquire+0x3d4d/0x3e00 [ 33.712825] ? remove_wait_queue+0x81/0x350 [ 33.717129] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 33.722298] ? lock_downgrade+0x980/0x980 [ 33.726419] ? __schedule+0x2060/0x2060 [ 33.730365] ? find_held_lock+0x35/0x1d0 [ 33.734405] ? wait_for_completion+0xe0/0x770 [ 33.738884] ? lock_downgrade+0x980/0x980 [ 33.743014] ? lock_release+0xa40/0xa40 [ 33.746972] ? usleep_range+0x190/0x190 [ 33.750924] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 33.756792] ? do_raw_spin_trylock+0x190/0x190 [ 33.761355] ? _raw_spin_unlock_irq+0x27/0x70 [ 33.765829] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 33.770819] ? trace_hardirqs_on+0xd/0x10 [ 33.774941] ? _raw_spin_unlock_irq+0x27/0x70 [ 33.779417] ? wait_for_completion+0xe0/0x770 [ 33.783885] ? wait_for_completion_interruptible+0x7e0/0x7e0 [ 33.789654] ? __lockdep_init_map+0xe4/0x650 [ 33.794038] ? llist_add_batch+0xf3/0x180 [ 33.798161] lock_acquire+0x1d5/0x580 [ 33.801936] ? lock_acquire+0x1d5/0x580 [ 33.805884] ? remove_wait_queue+0x81/0x350 [ 33.810183] ? wake_up_process+0x10/0x20 [ 33.814215] ? lock_release+0xa40/0xa40 [ 33.818169] ? vhost_work_queue+0xc0/0xc0 [ 33.822305] ? vhost_poll_stop+0x90/0x90 [ 33.826346] ? wait_for_completion+0x770/0x770 [ 33.830903] _raw_spin_lock_irqsave+0x96/0xc0 [ 33.835403] ? remove_wait_queue+0x81/0x350 [ 33.839700] remove_wait_queue+0x81/0x350 [ 33.843823] ? add_wait_queue+0x290/0x290 [ 33.847946] ? vhost_poll_flush+0x3f/0x60 [ 33.852067] ? vhost_net_flush+0x209/0x2a0 [ 33.856277] vhost_dev_stop+0x15c/0x2a0 [ 33.860234] ? vhost_net_compat_ioctl+0x30/0x30 [ 33.864876] vhost_net_release+0x6e/0x190 [ 33.869016] __fput+0x327/0x7e0 [ 33.872277] ? fput+0x140/0x140 [ 33.875531] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 33.881391] ? _raw_spin_unlock_irq+0x27/0x70 [ 33.885866] ____fput+0x15/0x20 [ 33.889125] task_work_run+0x199/0x270 [ 33.892992] ? task_work_cancel+0x210/0x210 [ 33.897290] ? _raw_spin_unlock+0x22/0x30 [ 33.901411] ? switch_task_namespaces+0x87/0xc0 [ 33.906494] do_exit+0x9bb/0x1ad0 [ 33.909935] ? mm_update_next_owner+0x930/0x930 [ 33.914579] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 33.919740] ? __might_sleep+0x95/0x190 [ 33.923685] ? find_held_lock+0x35/0x1d0 [ 33.927720] ? lock_downgrade+0x980/0x980 [ 33.931848] ? __unqueue_futex+0x1c0/0x290 [ 33.936056] ? lock_release+0xa40/0xa40 [ 33.940008] ? fault_in_user_writeable+0x90/0x90 [ 33.944749] ? do_raw_spin_trylock+0x190/0x190 [ 33.949307] ? futex_wake+0x680/0x680 [ 33.953081] ? mmdrop+0x18/0x30 [ 33.956330] ? check_noncircular+0x20/0x20 [ 33.960535] ? futex_wait+0x6a9/0x9a0 [ 33.964314] ? memset+0x31/0x40 [ 33.967576] ? find_held_lock+0x35/0x1d0 [ 33.971628] ? get_signal+0x7a9/0x16d0 [ 33.975488] ? lock_downgrade+0x980/0x980 [ 33.979617] do_group_exit+0x149/0x400 [ 33.983484] ? do_raw_spin_trylock+0x190/0x190 [ 33.988042] ? SyS_exit+0x30/0x30 [ 33.991469] ? _raw_spin_unlock_irq+0x27/0x70 [ 33.995939] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 34.000935] get_signal+0x73a/0x16d0 [ 34.004634] ? ptrace_notify+0x130/0x130 [ 34.008668] ? exit_robust_list+0x240/0x240 [ 34.012965] ? avc_has_extended_perms+0x7fa/0x12c0 [ 34.017867] ? find_held_lock+0x35/0x1d0 [ 34.021904] ? vhost_net_stop_vq+0xf0/0xf0 [ 34.026127] ? avc_ss_reset+0x110/0x110 [ 34.030075] ? lock_downgrade+0x980/0x980 [ 34.034200] do_signal+0x90/0x1eb0 [ 34.037720] ? __lock_is_held+0xb6/0x140 [ 34.041767] ? setup_sigcontext+0x7d0/0x7d0 [ 34.046076] ? exit_to_usermode_loop+0x8c/0x2f0 [ 34.050716] exit_to_usermode_loop+0x258/0x2f0 [ 34.055271] ? ioctl_preallocate+0x2b0/0x2b0 [ 34.059649] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 34.065159] ? selinux_capable+0x40/0x40 [ 34.069195] syscall_return_slowpath+0x490/0x550 [ 34.073923] ? prepare_exit_to_usermode+0x340/0x340 [ 34.078921] ? entry_SYSCALL_64_fastpath+0x73/0xa0 [ 34.083832] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 34.088827] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 34.093560] entry_SYSCALL_64_fastpath+0x9e/0xa0 [ 34.098287] RIP: 0033:0x44b529 [ 34.101447] RSP: 002b:00007fe112b63da8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 34.109146] RAX: fffffffffffffe00 RBX: 00000000006ddc54 RCX: 000000000044b529 [ 34.116387] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000006ddc54 [ 34.123628] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 34.130868] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006ddc50 [ 34.138115] R13: 6f68762f7665642f R14: 00007fe112b649c0 R15: 0000000000000007 [ 34.145786] Dumping ftrace buffer: [ 34.149296] (ftrace buffer empty) [ 34.152974] Kernel Offset: disabled [ 34.156570] Rebooting in 86400 seconds..