[....] Starting enhanced syslogd: rsyslogd[ 12.692466] audit: type=1400 audit(1517039526.850:5): avc: denied { syslog } for pid=3494 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 mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] 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: [ 18.938929] audit: type=1400 audit(1517039533.096:6): avc: denied { map } for pid=3635 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 '10.128.15.229' (ECDSA) to the list of known hosts. [ 25.150133] audit: type=1400 audit(1517039539.307:7): avc: denied { map } for pid=3649 comm="syzkaller791967" path="/root/syzkaller791967545" 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 [ 30.598833] ================================================================== [ 30.606234] BUG: KASAN: use-after-free in __lock_acquire+0x3d4d/0x3e00 [ 30.612886] Read of size 8 at addr ffff8801c7b5c8a0 by task syzkaller791967/7269 [ 30.620395] [ 30.621998] CPU: 0 PID: 7269 Comm: syzkaller791967 Not tainted 4.15.0-rc9+ #192 [ 30.629423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.638763] Call Trace: [ 30.641345] dump_stack+0x194/0x257 [ 30.644964] ? arch_local_irq_restore+0x53/0x53 [ 30.649614] ? show_regs_print_info+0x18/0x18 [ 30.654080] ? check_noncircular+0x20/0x20 [ 30.658282] ? __lock_acquire+0x3d4d/0x3e00 [ 30.662577] print_address_description+0x73/0x250 [ 30.667389] ? __lock_acquire+0x3d4d/0x3e00 [ 30.671682] kasan_report+0x25b/0x340 [ 30.675455] __asan_report_load8_noabort+0x14/0x20 [ 30.680352] __lock_acquire+0x3d4d/0x3e00 [ 30.684469] ? check_noncircular+0x20/0x20 [ 30.688673] ? remove_wait_queue+0x81/0x350 [ 30.692966] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 30.698134] ? lock_downgrade+0x980/0x980 [ 30.702251] ? __schedule+0x2060/0x2060 [ 30.706195] ? find_held_lock+0x35/0x1d0 [ 30.710227] ? wait_for_completion+0xe0/0x770 [ 30.714700] ? lock_downgrade+0x980/0x980 [ 30.718819] ? lock_release+0xa40/0xa40 [ 30.722765] ? usleep_range+0x190/0x190 [ 30.726706] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 30.732560] ? kasan_slab_free+0x71/0xc0 [ 30.736588] ? do_raw_spin_trylock+0x190/0x190 [ 30.741139] ? _raw_spin_unlock_irq+0x27/0x70 [ 30.745604] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 30.750589] ? trace_hardirqs_on+0xd/0x10 [ 30.754709] ? _raw_spin_unlock_irq+0x27/0x70 [ 30.759184] ? wait_for_completion+0xe0/0x770 [ 30.763661] ? wait_for_completion_interruptible+0x7e0/0x7e0 [ 30.769426] ? __lockdep_init_map+0xe4/0x650 [ 30.773804] ? llist_add_batch+0xf3/0x180 [ 30.777924] lock_acquire+0x1d5/0x580 [ 30.781699] ? lock_acquire+0x1d5/0x580 [ 30.785642] ? remove_wait_queue+0x81/0x350 [ 30.789936] ? wake_up_process+0x10/0x20 [ 30.793974] ? lock_release+0xa40/0xa40 [ 30.797917] ? vhost_work_queue+0xc0/0xc0 [ 30.802038] ? vhost_poll_stop+0x90/0x90 [ 30.806078] ? wait_for_completion+0x770/0x770 [ 30.810629] _raw_spin_lock_irqsave+0x96/0xc0 [ 30.815091] ? remove_wait_queue+0x81/0x350 [ 30.819382] remove_wait_queue+0x81/0x350 [ 30.823500] ? add_wait_queue+0x290/0x290 [ 30.827620] ? vhost_poll_flush+0x3f/0x60 [ 30.831743] ? vhost_net_flush+0x209/0x2a0 [ 30.835954] vhost_dev_stop+0x15c/0x2a0 [ 30.839900] ? vhost_net_compat_ioctl+0x30/0x30 [ 30.844537] vhost_net_release+0x6e/0x190 [ 30.848657] __fput+0x327/0x7e0 [ 30.851909] ? fput+0x140/0x140 [ 30.855159] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 30.861019] ? _raw_spin_unlock_irq+0x27/0x70 [ 30.865486] ____fput+0x15/0x20 [ 30.868736] task_work_run+0x199/0x270 [ 30.872592] ? task_work_cancel+0x210/0x210 [ 30.876889] ? _raw_spin_unlock+0x22/0x30 [ 30.881016] ? switch_task_namespaces+0x87/0xc0 [ 30.885668] do_exit+0x9bb/0x1ad0 [ 30.889112] ? mm_update_next_owner+0x930/0x930 [ 30.893754] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 30.898915] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 30.904075] ? lock_acquire+0x1d5/0x580 [ 30.908024] ? __lock_is_held+0xb6/0x140 [ 30.912069] ? __lock_is_held+0xb6/0x140 [ 30.916107] ? check_noncircular+0x20/0x20 [ 30.920318] ? switched_to_fair+0xb0/0xb0 [ 30.924436] ? __enqueue_entity+0x109/0x1e0 [ 30.928731] ? find_held_lock+0x35/0x1d0 [ 30.932762] ? get_signal+0x7ae/0x16c0 [ 30.936620] ? lock_downgrade+0x980/0x980 [ 30.940739] do_group_exit+0x149/0x400 [ 30.944603] ? do_raw_spin_trylock+0x190/0x190 [ 30.949155] ? SyS_exit+0x30/0x30 [ 30.952577] ? _raw_spin_unlock_irq+0x27/0x70 [ 30.957040] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 30.962031] get_signal+0x73f/0x16c0 [ 30.965719] ? ptrace_notify+0x130/0x130 [ 30.969750] ? __schedule+0x8f3/0x2060 [ 30.973610] ? __sched_text_start+0x8/0x8 [ 30.977752] ? vhost_net_ioctl+0x2af/0x1910 [ 30.982049] do_signal+0x90/0x1eb0 [ 30.985559] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 30.991422] ? rcu_note_context_switch+0x710/0x710 [ 30.996323] ? setup_sigcontext+0x7d0/0x7d0 [ 31.000616] ? __might_sleep+0x95/0x190 [ 31.004562] ? schedule+0xf5/0x430 [ 31.008080] ? __schedule+0x2060/0x2060 [ 31.012029] ? selinux_capable+0x40/0x40 [ 31.016063] ? compat_SyS_epoll_pwait+0x4f0/0x4f0 [ 31.020877] ? __init_waitqueue_head+0x97/0x140 [ 31.025518] ? exit_to_usermode_loop+0x8c/0x310 [ 31.030158] exit_to_usermode_loop+0x214/0x310 [ 31.034712] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 31.040220] ? do_fast_syscall_32+0x156/0xf9d [ 31.044683] do_fast_syscall_32+0xbfd/0xf9d [ 31.048977] ? do_raw_spin_trylock+0x190/0x190 [ 31.053527] ? do_int80_syscall_32+0x9d0/0x9d0 [ 31.058081] ? syscall_return_slowpath+0x2ad/0x550 [ 31.062981] ? prepare_exit_to_usermode+0x340/0x340 [ 31.067965] ? sysret32_from_system_call+0x5/0x3b [ 31.072778] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 31.077588] entry_SYSENTER_compat+0x54/0x63 [ 31.081963] RIP: 0023:0xf7f05c79 [ 31.085293] RSP: 002b:00000000f7ebf13c EFLAGS: 00000296 ORIG_RAX: 00000000000000f0 [ 31.092966] RAX: 0000000000000001 RBX: 00000000080fd004 RCX: 0000000000000001 [ 31.100210] RDX: 0000000008048d42 RSI: 0000000000000000 RDI: 0000000000000000 [ 31.107454] RBP: 00000000003d0f00 R08: 0000000000000000 R09: 0000000000000000 [ 31.114693] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 31.121930] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 31.129170] [ 31.130767] Allocated by task 7245: [ 31.134374] save_stack+0x43/0xd0 [ 31.137798] kasan_kmalloc+0xad/0xe0 [ 31.141482] kmem_cache_alloc_trace+0x136/0x750 [ 31.146135] eventfd_file_create.part.3+0x96/0x250 [ 31.151037] SyS_eventfd+0x2c/0x80 [ 31.154546] do_fast_syscall_32+0x3ee/0xf9d [ 31.158837] entry_SYSENTER_compat+0x54/0x63 [ 31.163208] [ 31.164803] Freed by task 7269: [ 31.168052] save_stack+0x43/0xd0 [ 31.171482] kasan_slab_free+0x71/0xc0 [ 31.175336] kfree+0xd6/0x260 [ 31.178410] eventfd_ctx_put+0x26/0x30 [ 31.182266] eventfd_release+0x52/0x60 [ 31.186122] __fput+0x327/0x7e0 [ 31.189377] ____fput+0x15/0x20 [ 31.192629] task_work_run+0x199/0x270 [ 31.196486] do_exit+0x9bb/0x1ad0 [ 31.199907] do_group_exit+0x149/0x400 [ 31.203763] get_signal+0x73f/0x16c0 [ 31.207443] do_signal+0x90/0x1eb0 [ 31.210954] exit_to_usermode_loop+0x214/0x310 [ 31.215503] do_fast_syscall_32+0xbfd/0xf9d [ 31.219792] entry_SYSENTER_compat+0x54/0x63 [ 31.224163] [ 31.225759] The buggy address belongs to the object at ffff8801c7b5c880 [ 31.225759] which belongs to the cache kmalloc-96 of size 96 [ 31.238207] The buggy address is located 32 bytes inside of [ 31.238207] 96-byte region [ffff8801c7b5c880, ffff8801c7b5c8e0) [ 31.249873] The buggy address belongs to the page: [ 31.254771] page:ffffea00071ed700 count:1 mapcount:0 mapping:ffff8801c7b5c000 index:0x0 [ 31.262881] flags: 0x2fffc0000000100(slab) [ 31.267085] raw: 02fffc0000000100 ffff8801c7b5c000 0000000000000000 0000000100000020 [ 31.274936] raw: ffffea00071d64e0 ffffea00071eaf60 ffff8801dac004c0 0000000000000000 [ 31.282787] page dumped because: kasan: bad access detected [ 31.288469] [ 31.290066] Memory state around the buggy address: [ 31.294962] ffff8801c7b5c780: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [ 31.302287] ffff8801c7b5c800: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [ 31.309612] >ffff8801c7b5c880: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [ 31.316937] ^ [ 31.321318] ffff8801c7b5c900: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc [ 31.328649] ffff8801c7b5c980: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [ 31.335975] ================================================================== [ 31.343302] Disabling lock debugging due to kernel taint [ 31.348725] Kernel panic - not syncing: panic_on_warn set ... [ 31.348725] [ 31.356054] CPU: 0 PID: 7269 Comm: syzkaller791967 Tainted: G B 4.15.0-rc9+ #192 [ 31.364768] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.374095] Call Trace: [ 31.376655] dump_stack+0x194/0x257 [ 31.380253] ? arch_local_irq_restore+0x53/0x53 [ 31.384891] ? kasan_end_report+0x32/0x50 [ 31.389009] ? lock_downgrade+0x980/0x980 [ 31.393131] ? vsnprintf+0x1ed/0x1900 [ 31.396898] ? __lock_acquire+0x3ca0/0x3e00 [ 31.401188] panic+0x1e4/0x41c [ 31.404350] ? refcount_error_report+0x214/0x214 [ 31.409074] ? add_taint+0x40/0x50 [ 31.412584] ? add_taint+0x1c/0x50 [ 31.416096] ? __lock_acquire+0x3d4d/0x3e00 [ 31.420387] kasan_end_report+0x50/0x50 [ 31.424333] kasan_report+0x144/0x340 [ 31.428103] __asan_report_load8_noabort+0x14/0x20 [ 31.433087] __lock_acquire+0x3d4d/0x3e00 [ 31.437209] ? check_noncircular+0x20/0x20 [ 31.441418] ? remove_wait_queue+0x81/0x350 [ 31.445707] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 31.450864] ? lock_downgrade+0x980/0x980 [ 31.454980] ? __schedule+0x2060/0x2060 [ 31.458925] ? find_held_lock+0x35/0x1d0 [ 31.462955] ? wait_for_completion+0xe0/0x770 [ 31.467418] ? lock_downgrade+0x980/0x980 [ 31.471538] ? lock_release+0xa40/0xa40 [ 31.475481] ? usleep_range+0x190/0x190 [ 31.479426] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 31.485280] ? kasan_slab_free+0x71/0xc0 [ 31.489313] ? do_raw_spin_trylock+0x190/0x190 [ 31.493869] ? _raw_spin_unlock_irq+0x27/0x70 [ 31.498332] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 31.503319] ? trace_hardirqs_on+0xd/0x10 [ 31.507435] ? _raw_spin_unlock_irq+0x27/0x70 [ 31.511898] ? wait_for_completion+0xe0/0x770 [ 31.516363] ? wait_for_completion_interruptible+0x7e0/0x7e0 [ 31.522129] ? __lockdep_init_map+0xe4/0x650 [ 31.526514] ? llist_add_batch+0xf3/0x180 [ 31.530636] lock_acquire+0x1d5/0x580 [ 31.534404] ? lock_acquire+0x1d5/0x580 [ 31.538346] ? remove_wait_queue+0x81/0x350 [ 31.542637] ? wake_up_process+0x10/0x20 [ 31.546667] ? lock_release+0xa40/0xa40 [ 31.550612] ? vhost_work_queue+0xc0/0xc0 [ 31.554728] ? vhost_poll_stop+0x90/0x90 [ 31.558758] ? wait_for_completion+0x770/0x770 [ 31.563321] _raw_spin_lock_irqsave+0x96/0xc0 [ 31.567788] ? remove_wait_queue+0x81/0x350 [ 31.572079] remove_wait_queue+0x81/0x350 [ 31.576201] ? add_wait_queue+0x290/0x290 [ 31.580336] ? vhost_poll_flush+0x3f/0x60 [ 31.584450] ? vhost_net_flush+0x209/0x2a0 [ 31.588663] vhost_dev_stop+0x15c/0x2a0 [ 31.592608] ? vhost_net_compat_ioctl+0x30/0x30 [ 31.597247] vhost_net_release+0x6e/0x190 [ 31.601366] __fput+0x327/0x7e0 [ 31.604630] ? fput+0x140/0x140 [ 31.607880] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 31.613733] ? _raw_spin_unlock_irq+0x27/0x70 [ 31.618196] ____fput+0x15/0x20 [ 31.621448] task_work_run+0x199/0x270 [ 31.625312] ? task_work_cancel+0x210/0x210 [ 31.629603] ? _raw_spin_unlock+0x22/0x30 [ 31.633722] ? switch_task_namespaces+0x87/0xc0 [ 31.638359] do_exit+0x9bb/0x1ad0 [ 31.641783] ? mm_update_next_owner+0x930/0x930 [ 31.646419] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 31.651575] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 31.656730] ? lock_acquire+0x1d5/0x580 [ 31.660681] ? __lock_is_held+0xb6/0x140 [ 31.664719] ? __lock_is_held+0xb6/0x140 [ 31.668751] ? check_noncircular+0x20/0x20 [ 31.672965] ? switched_to_fair+0xb0/0xb0 [ 31.677082] ? __enqueue_entity+0x109/0x1e0 [ 31.681374] ? find_held_lock+0x35/0x1d0 [ 31.685405] ? get_signal+0x7ae/0x16c0 [ 31.689267] ? lock_downgrade+0x980/0x980 [ 31.693476] do_group_exit+0x149/0x400 [ 31.697332] ? do_raw_spin_trylock+0x190/0x190 [ 31.701888] ? SyS_exit+0x30/0x30 [ 31.705315] ? _raw_spin_unlock_irq+0x27/0x70 [ 31.709781] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 31.714767] get_signal+0x73f/0x16c0 [ 31.718453] ? ptrace_notify+0x130/0x130 [ 31.722486] ? __schedule+0x8f3/0x2060 [ 31.726344] ? __sched_text_start+0x8/0x8 [ 31.730468] ? vhost_net_ioctl+0x2af/0x1910 [ 31.734760] do_signal+0x90/0x1eb0 [ 31.738270] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 31.744132] ? rcu_note_context_switch+0x710/0x710 [ 31.749039] ? setup_sigcontext+0x7d0/0x7d0 [ 31.753330] ? __might_sleep+0x95/0x190 [ 31.757279] ? schedule+0xf5/0x430 [ 31.760799] ? __schedule+0x2060/0x2060 [ 31.764744] ? selinux_capable+0x40/0x40 [ 31.768775] ? compat_SyS_epoll_pwait+0x4f0/0x4f0 [ 31.773587] ? __init_waitqueue_head+0x97/0x140 [ 31.778229] ? exit_to_usermode_loop+0x8c/0x310 [ 31.782869] exit_to_usermode_loop+0x214/0x310 [ 31.787429] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 31.792941] ? do_fast_syscall_32+0x156/0xf9d [ 31.797403] do_fast_syscall_32+0xbfd/0xf9d [ 31.801695] ? do_raw_spin_trylock+0x190/0x190 [ 31.806244] ? do_int80_syscall_32+0x9d0/0x9d0 [ 31.810804] ? syscall_return_slowpath+0x2ad/0x550 [ 31.815714] ? prepare_exit_to_usermode+0x340/0x340 [ 31.820700] ? sysret32_from_system_call+0x5/0x3b [ 31.825511] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 31.830330] entry_SYSENTER_compat+0x54/0x63 [ 31.834705] RIP: 0023:0xf7f05c79 [ 31.838035] RSP: 002b:00000000f7ebf13c EFLAGS: 00000296 ORIG_RAX: 00000000000000f0 [ 31.845710] RAX: 0000000000000001 RBX: 00000000080fd004 RCX: 0000000000000001 [ 31.852947] RDX: 0000000008048d42 RSI: 0000000000000000 RDI: 0000000000000000 [ 31.860193] RBP: 00000000003d0f00 R08: 0000000000000000 R09: 0000000000000000 [ 31.867429] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 31.874666] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 31.882327] Dumping ftrace buffer: [ 31.885839] (ftrace buffer empty) [ 31.889518] Kernel Offset: disabled [ 31.893111] Rebooting in 86400 seconds..