[....] Starting enhanced syslogd: rsyslogd[ 13.034494] audit: type=1400 audit(1516135045.069:5): avc: denied { syslog } for pid=3508 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: [ 19.837110] audit: type=1400 audit(1516135051.871:6): avc: denied { map } for pid=3647 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 '10.128.0.53' (ECDSA) to the list of known hosts. executing program [ 30.831860] audit: type=1400 audit(1516135062.866:7): avc: denied { map } for pid=3663 comm="syzkaller858097" path="/root/syzkaller858097912" 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 [ 30.858444] audit: type=1400 audit(1516135062.866:8): avc: denied { prog_load } for pid=3663 comm="syzkaller858097" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1 [ 30.881420] audit: type=1400 audit(1516135062.916:9): avc: denied { prog_run } for pid=3663 comm="syzkaller858097" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1 [ 30.904241] audit: type=1400 audit(1516135062.916:10): avc: denied { name_bind } for pid=3663 comm="syzkaller858097" src=20000 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:port_t:s0 tclass=dccp_socket permissive=1 [ 30.927190] audit: type=1400 audit(1516135062.916:11): avc: denied { node_bind } for pid=3663 comm="syzkaller858097" saddr=::1 src=20000 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:node_t:s0 tclass=dccp_socket permissive=1 [ 30.951105] audit: type=1400 audit(1516135062.916:12): avc: denied { name_connect } for pid=3663 comm="syzkaller858097" dest=20000 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:port_t:s0 tclass=dccp_socket permissive=1 [ 30.991622] ================================================================== [ 30.999057] BUG: KASAN: use-after-free in psock_write_space+0x143/0x160 [ 31.005784] Read of size 8 at addr ffff8801bb731d20 by task syzkaller858097/3665 [ 31.013371] [ 31.014973] CPU: 0 PID: 3665 Comm: syzkaller858097 Not tainted 4.15.0-rc8+ #263 [ 31.023259] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.032674] Call Trace: [ 31.035238] dump_stack+0x194/0x257 [ 31.038842] ? arch_local_irq_restore+0x53/0x53 [ 31.043484] ? show_regs_print_info+0x18/0x18 [ 31.048515] ? psock_write_space+0x143/0x160 [ 31.052900] print_address_description+0x73/0x250 [ 31.057714] ? psock_write_space+0x143/0x160 [ 31.062094] kasan_report+0x25b/0x340 [ 31.065873] ? sk_common_release+0x2f0/0x2f0 [ 31.070254] __asan_report_load8_noabort+0x14/0x20 [ 31.075154] psock_write_space+0x143/0x160 [ 31.079361] sock_wfree+0x10b/0x140 [ 31.082961] loopback_xmit+0x12e/0x6b0 [ 31.086820] ? __lock_is_held+0xb6/0x140 [ 31.090851] ? loopback_net_init+0x160/0x160 [ 31.095242] dev_hard_start_xmit+0x24e/0xac0 [ 31.099628] ? validate_xmit_skb_list+0x120/0x120 [ 31.104618] ? netif_skb_features+0x5ff/0x9b0 [ 31.109089] ? __skb_gso_segment+0x800/0x800 [ 31.113468] ? __dev_queue_xmit+0x294/0x2920 [ 31.117858] ? validate_xmit_xfrm+0x7e/0x4a0 [ 31.122775] ? validate_xmit_skb+0x67a/0xb30 [ 31.127172] ? netif_skb_features+0x9b0/0x9b0 [ 31.131653] __dev_queue_xmit+0x206d/0x2920 [ 31.135953] ? netdev_pick_tx+0x300/0x300 [ 31.140070] ? print_irqtrace_events+0x270/0x270 [ 31.144815] ? print_irqtrace_events+0x270/0x270 [ 31.149557] ? __lock_acquire+0x664/0x3e00 [ 31.153771] ? __lock_acquire+0x664/0x3e00 [ 31.157994] ? check_noncircular+0x20/0x20 [ 31.162216] ? print_irqtrace_events+0x270/0x270 [ 31.166945] ? check_noncircular+0x20/0x20 [ 31.171152] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 31.176321] ? print_irqtrace_events+0x270/0x270 [ 31.181056] ? ip6_finish_output+0x302/0x930 [ 31.185436] ? lock_downgrade+0x980/0x980 [ 31.189557] ? lock_release+0xa40/0xa40 [ 31.193506] ? mark_held_locks+0xaf/0x100 [ 31.197632] dev_queue_xmit+0x17/0x20 [ 31.201403] ? dev_queue_xmit+0x17/0x20 [ 31.205349] ip6_finish_output2+0x1498/0x23a0 [ 31.209836] ? ip6_sk_dst_lookup_flow+0x7f0/0x7f0 [ 31.214655] ? ip6_mtu+0x36f/0x4d0 [ 31.218169] ? check_noncircular+0x20/0x20 [ 31.222385] ? __lock_is_held+0xb6/0x140 [ 31.226430] ? __lock_is_held+0xb6/0x140 [ 31.230473] ip6_finish_output+0x302/0x930 [ 31.234677] ? ip6_finish_output+0x302/0x930 [ 31.239067] ip6_output+0x1eb/0x840 [ 31.242670] ? ip6_finish_output+0x930/0x930 [ 31.247059] ? ip6_fragment+0x3470/0x3470 [ 31.251189] ip6_xmit+0xd84/0x2090 [ 31.254703] ? __sk_dst_check+0x1a5/0x380 [ 31.258833] ? ip6_finish_output2+0x23a0/0x23a0 [ 31.263475] ? fl6_update_dst+0x127/0x2b0 [ 31.267595] ? check_noncircular+0x20/0x20 [ 31.271800] ? inet6_csk_route_socket+0x691/0xe80 [ 31.276618] ? lock_acquire+0x1d5/0x580 [ 31.280563] ? lock_acquire+0x1d5/0x580 [ 31.284507] ? inet6_csk_xmit+0x114/0x580 [ 31.288630] ? ip6_forward_finish+0x140/0x140 [ 31.293100] ? lock_release+0xa40/0xa40 [ 31.297065] inet6_csk_xmit+0x2fc/0x580 [ 31.301013] ? inet6_csk_update_pmtu+0x160/0x160 [ 31.305740] ? skb_checksum+0xd1/0x130 [ 31.309604] ? __skb_checksum+0x7e0/0x7e0 [ 31.313722] ? skb_send_sock+0x50/0x50 [ 31.317588] ? dccp_v6_send_check+0x278/0x3e0 [ 31.322061] dccp_transmit_skb+0x9ac/0x10f0 [ 31.326359] ? find_held_lock+0x35/0x1d0 [ 31.330403] dccp_send_reset+0x21c/0x2a0 [ 31.334456] dccp_disconnect+0x90e/0xbb0 [ 31.338493] ? dccp_destroy_sock+0x3f0/0x3f0 [ 31.342875] ? refcount_inc_not_zero+0xfe/0x180 [ 31.347528] ? refcount_add+0x60/0x60 [ 31.351308] ? __lock_is_held+0xb6/0x140 [ 31.355347] inet_child_forget+0x6b/0x320 [ 31.359470] inet_csk_listen_stop+0x128/0x920 [ 31.363954] ? inet_get_local_port_range+0x500/0x500 [ 31.369031] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 31.374021] ? lock_sock_nested+0x91/0x110 [ 31.378263] ? dccp_set_state+0x16c/0x270 [ 31.382396] dccp_close+0x780/0xc20 [ 31.385996] ? ip_mc_drop_socket+0x1ce/0x230 [ 31.390475] inet_release+0xed/0x1c0 [ 31.394166] inet6_release+0x50/0x70 [ 31.397858] sock_release+0x8d/0x1e0 [ 31.401544] ? sock_alloc_file+0x560/0x560 [ 31.405752] sock_close+0x16/0x20 [ 31.409182] __fput+0x327/0x7e0 [ 31.412441] ? fput+0x140/0x140 [ 31.415705] ? _raw_spin_unlock_irq+0x27/0x70 [ 31.420176] ____fput+0x15/0x20 [ 31.423433] task_work_run+0x199/0x270 [ 31.427315] ? task_work_cancel+0x210/0x210 [ 31.431609] ? _raw_spin_unlock+0x22/0x30 [ 31.435740] ? switch_task_namespaces+0x87/0xc0 [ 31.440386] do_exit+0x9bb/0x1ad0 [ 31.443821] ? mm_update_next_owner+0x930/0x930 [ 31.448551] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 31.453714] ? __might_sleep+0x95/0x190 [ 31.457667] ? find_held_lock+0x35/0x1d0 [ 31.461705] ? __pv_queued_spin_lock_slowpath+0x1480/0x1480 [ 31.467387] ? futex_wait+0x402/0x9a0 [ 31.471161] ? lock_downgrade+0x980/0x980 [ 31.475287] ? __unqueue_futex+0x1c0/0x290 [ 31.479492] ? lock_release+0xa40/0xa40 [ 31.483439] ? fault_in_user_writeable+0x90/0x90 [ 31.488169] ? do_raw_spin_trylock+0x190/0x190 [ 31.492726] ? futex_wake+0x680/0x680 [ 31.496500] ? check_noncircular+0x20/0x20 [ 31.500719] ? drop_futex_key_refs.isra.12+0x63/0xb0 [ 31.505797] ? futex_wait+0x6a9/0x9a0 [ 31.509726] ? find_held_lock+0x35/0x1d0 [ 31.513767] ? get_signal+0x7ae/0x16c0 [ 31.517629] ? lock_downgrade+0x980/0x980 [ 31.521757] do_group_exit+0x149/0x400 [ 31.525618] ? do_raw_spin_trylock+0x190/0x190 [ 31.530171] ? SyS_exit+0x30/0x30 [ 31.533774] ? _raw_spin_unlock_irq+0x27/0x70 [ 31.538243] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 31.543235] get_signal+0x73f/0x16c0 [ 31.546932] ? ptrace_notify+0x130/0x130 [ 31.550971] ? exit_robust_list+0x240/0x240 [ 31.555273] ? debug_mutex_init+0x2d/0x60 [ 31.559399] ? __mutex_init+0x1c7/0x2a0 [ 31.563347] ? SyS_membarrier+0x600/0x600 [ 31.567470] ? find_held_lock+0x35/0x1d0 [ 31.571513] do_signal+0x90/0x1eb0 [ 31.575026] ? __fd_install+0x25f/0x740 [ 31.578973] ? lock_downgrade+0x980/0x980 [ 31.583099] ? setup_sigcontext+0x7d0/0x7d0 [ 31.587405] ? __lock_is_held+0xb6/0x140 [ 31.591462] ? get_unused_fd_flags+0x190/0x190 [ 31.596024] ? alloc_file+0x27e/0x390 [ 31.599798] ? _raw_spin_unlock+0x22/0x30 [ 31.603921] ? exit_to_usermode_loop+0x8c/0x310 [ 31.608566] exit_to_usermode_loop+0x214/0x310 [ 31.613124] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 31.618642] syscall_return_slowpath+0x490/0x550 [ 31.623374] ? prepare_exit_to_usermode+0x340/0x340 [ 31.628381] ? entry_SYSCALL_64_fastpath+0x73/0xa0 [ 31.633288] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 31.638276] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 31.643013] entry_SYSCALL_64_fastpath+0x9e/0xa0 [ 31.647751] RIP: 0033:0x445819 [ 31.650911] RSP: 002b:00007fad17780da8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 31.658588] RAX: fffffffffffffe00 RBX: 00000000006dac3c RCX: 0000000000445819 [ 31.665829] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000006dac3c [ 31.673073] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 31.680314] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dac38 [ 31.687731] R13: 0100000000000000 R14: 656c6c616b7a7973 R15: 000000000000000b [ 31.695001] [ 31.696601] Allocated by task 3664: [ 31.700201] save_stack+0x43/0xd0 [ 31.703623] kasan_kmalloc+0xad/0xe0 [ 31.707307] kasan_slab_alloc+0x12/0x20 [ 31.711336] kmem_cache_alloc+0x12e/0x760 [ 31.715469] kcm_ioctl+0x2d2/0x1690 [ 31.719067] sock_do_ioctl+0x65/0xb0 [ 31.722752] sock_ioctl+0x2c2/0x440 [ 31.726359] do_vfs_ioctl+0x1b1/0x1520 [ 31.730218] SyS_ioctl+0x8f/0xc0 [ 31.733557] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 31.738287] [ 31.739886] Freed by task 3665: [ 31.743140] save_stack+0x43/0xd0 [ 31.746562] kasan_slab_free+0x71/0xc0 [ 31.751202] kmem_cache_free+0x83/0x2a0 [ 31.755150] kcm_unattach+0xe53/0x1510 [ 31.759008] kcm_done+0x5c7/0x1990 [ 31.763036] kcm_release+0x478/0x860 [ 31.766722] sock_release+0x8d/0x1e0 [ 31.770405] sock_close+0x16/0x20 [ 31.773829] __fput+0x327/0x7e0 [ 31.777078] ____fput+0x15/0x20 [ 31.780329] task_work_run+0x199/0x270 [ 31.784186] do_exit+0x9bb/0x1ad0 [ 31.787611] do_group_exit+0x149/0x400 [ 31.791476] get_signal+0x73f/0x16c0 [ 31.795161] do_signal+0x90/0x1eb0 [ 31.798674] exit_to_usermode_loop+0x214/0x310 [ 31.803226] syscall_return_slowpath+0x490/0x550 [ 31.807964] entry_SYSCALL_64_fastpath+0x9e/0xa0 [ 31.812687] [ 31.814298] The buggy address belongs to the object at ffff8801bb731bc0 [ 31.814298] which belongs to the cache kcm_psock_cache of size 544 [ 31.827272] The buggy address is located 352 bytes inside of [ 31.827272] 544-byte region [ffff8801bb731bc0, ffff8801bb731de0) [ 31.839126] The buggy address belongs to the page: [ 31.844028] page:ffffea0006edcc00 count:1 mapcount:0 mapping:ffff8801bb730040 index:0x0 compound_mapcount: 0 [ 31.853978] flags: 0x2fffc0000008100(slab|head) [ 31.858619] raw: 02fffc0000008100 ffff8801bb730040 0000000000000000 000000010000000b [ 31.866471] raw: ffff8801d3271348 ffff8801d3271348 ffff8801d3255780 0000000000000000 [ 31.874320] page dumped because: kasan: bad access detected [ 31.879995] [ 31.881591] Memory state around the buggy address: [ 31.886489] ffff8801bb731c00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 31.893835] ffff8801bb731c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 31.901179] >ffff8801bb731d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 31.908506] ^ [ 31.912881] ffff8801bb731d80: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [ 31.920211] ffff8801bb731e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 31.927538] ================================================================== [ 31.934887] Disabling lock debugging due to kernel taint [ 31.940349] Kernel panic - not syncing: panic_on_warn set ... [ 31.940349] [ 31.947949] CPU: 0 PID: 3665 Comm: syzkaller858097 Tainted: G B 4.15.0-rc8+ #263 [ 31.956678] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.966013] Call Trace: [ 31.968589] dump_stack+0x194/0x257 [ 31.972191] ? arch_local_irq_restore+0x53/0x53 [ 31.976828] ? kasan_end_report+0x32/0x50 [ 31.980948] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 31.985689] ? vsnprintf+0x1ed/0x1900 [ 31.989460] ? psock_write_space+0xc0/0x160 [ 31.993752] panic+0x1e4/0x41c [ 31.996915] ? refcount_error_report+0x214/0x214 [ 32.001653] ? add_taint+0x1c/0x50 [ 32.005168] ? add_taint+0x1c/0x50 [ 32.008680] ? psock_write_space+0x143/0x160 [ 32.013060] kasan_end_report+0x50/0x50 [ 32.017009] kasan_report+0x144/0x340 [ 32.020782] ? sk_common_release+0x2f0/0x2f0 [ 32.025170] __asan_report_load8_noabort+0x14/0x20 [ 32.030071] psock_write_space+0x143/0x160 [ 32.034277] sock_wfree+0x10b/0x140 [ 32.037875] loopback_xmit+0x12e/0x6b0 [ 32.041735] ? __lock_is_held+0xb6/0x140 [ 32.045765] ? loopback_net_init+0x160/0x160 [ 32.050167] dev_hard_start_xmit+0x24e/0xac0 [ 32.054550] ? validate_xmit_skb_list+0x120/0x120 [ 32.059368] ? netif_skb_features+0x5ff/0x9b0 [ 32.063846] ? __skb_gso_segment+0x800/0x800 [ 32.068224] ? __dev_queue_xmit+0x294/0x2920 [ 32.072605] ? validate_xmit_xfrm+0x7e/0x4a0 [ 32.076998] ? validate_xmit_skb+0x67a/0xb30 [ 32.081377] ? netif_skb_features+0x9b0/0x9b0 [ 32.085846] __dev_queue_xmit+0x206d/0x2920 [ 32.090142] ? netdev_pick_tx+0x300/0x300 [ 32.094262] ? print_irqtrace_events+0x270/0x270 [ 32.098987] ? print_irqtrace_events+0x270/0x270 [ 32.103712] ? __lock_acquire+0x664/0x3e00 [ 32.107921] ? __lock_acquire+0x664/0x3e00 [ 32.112131] ? check_noncircular+0x20/0x20 [ 32.116342] ? print_irqtrace_events+0x270/0x270 [ 32.121068] ? check_noncircular+0x20/0x20 [ 32.125271] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 32.130435] ? print_irqtrace_events+0x270/0x270 [ 32.135172] ? ip6_finish_output+0x302/0x930 [ 32.139550] ? lock_downgrade+0x980/0x980 [ 32.143669] ? lock_release+0xa40/0xa40 [ 32.147615] ? mark_held_locks+0xaf/0x100 [ 32.151735] dev_queue_xmit+0x17/0x20 [ 32.155504] ? dev_queue_xmit+0x17/0x20 [ 32.159449] ip6_finish_output2+0x1498/0x23a0 [ 32.163929] ? ip6_sk_dst_lookup_flow+0x7f0/0x7f0 [ 32.168742] ? ip6_mtu+0x36f/0x4d0 [ 32.172255] ? check_noncircular+0x20/0x20 [ 32.176464] ? __lock_is_held+0xb6/0x140 [ 32.180513] ? __lock_is_held+0xb6/0x140 [ 32.184552] ip6_finish_output+0x302/0x930 [ 32.188755] ? ip6_finish_output+0x302/0x930 [ 32.193156] ip6_output+0x1eb/0x840 [ 32.196755] ? ip6_finish_output+0x930/0x930 [ 32.201136] ? ip6_fragment+0x3470/0x3470 [ 32.205259] ip6_xmit+0xd84/0x2090 [ 32.208770] ? __sk_dst_check+0x1a5/0x380 [ 32.212893] ? ip6_finish_output2+0x23a0/0x23a0 [ 32.217533] ? fl6_update_dst+0x127/0x2b0 [ 32.221651] ? check_noncircular+0x20/0x20 [ 32.225859] ? inet6_csk_route_socket+0x691/0xe80 [ 32.230673] ? lock_acquire+0x1d5/0x580 [ 32.234615] ? lock_acquire+0x1d5/0x580 [ 32.238569] ? inet6_csk_xmit+0x114/0x580 [ 32.242688] ? ip6_forward_finish+0x140/0x140 [ 32.247158] ? lock_release+0xa40/0xa40 [ 32.251122] inet6_csk_xmit+0x2fc/0x580 [ 32.255068] ? inet6_csk_update_pmtu+0x160/0x160 [ 32.259790] ? skb_checksum+0xd1/0x130 [ 32.263648] ? __skb_checksum+0x7e0/0x7e0 [ 32.267765] ? skb_send_sock+0x50/0x50 [ 32.271627] ? dccp_v6_send_check+0x278/0x3e0 [ 32.276097] dccp_transmit_skb+0x9ac/0x10f0 [ 32.280402] ? find_held_lock+0x35/0x1d0 [ 32.284439] dccp_send_reset+0x21c/0x2a0 [ 32.288471] dccp_disconnect+0x90e/0xbb0 [ 32.292524] ? dccp_destroy_sock+0x3f0/0x3f0 [ 32.296903] ? refcount_inc_not_zero+0xfe/0x180 [ 32.301541] ? refcount_add+0x60/0x60 [ 32.305309] ? __lock_is_held+0xb6/0x140 [ 32.309429] inet_child_forget+0x6b/0x320 [ 32.313546] inet_csk_listen_stop+0x128/0x920 [ 32.318023] ? inet_get_local_port_range+0x500/0x500 [ 32.323096] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.328081] ? lock_sock_nested+0x91/0x110 [ 32.332286] ? dccp_set_state+0x16c/0x270 [ 32.336413] dccp_close+0x780/0xc20 [ 32.340011] ? ip_mc_drop_socket+0x1ce/0x230 [ 32.344389] inet_release+0xed/0x1c0 [ 32.348073] inet6_release+0x50/0x70 [ 32.351756] sock_release+0x8d/0x1e0 [ 32.355438] ? sock_alloc_file+0x560/0x560 [ 32.359640] sock_close+0x16/0x20 [ 32.363065] __fput+0x327/0x7e0 [ 32.366316] ? fput+0x140/0x140 [ 32.369571] ? _raw_spin_unlock_irq+0x27/0x70 [ 32.374039] ____fput+0x15/0x20 [ 32.377291] task_work_run+0x199/0x270 [ 32.381154] ? task_work_cancel+0x210/0x210 [ 32.385454] ? _raw_spin_unlock+0x22/0x30 [ 32.389572] ? switch_task_namespaces+0x87/0xc0 [ 32.394214] do_exit+0x9bb/0x1ad0 [ 32.397640] ? mm_update_next_owner+0x930/0x930 [ 32.402281] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 32.407456] ? __might_sleep+0x95/0x190 [ 32.411405] ? find_held_lock+0x35/0x1d0 [ 32.415437] ? __pv_queued_spin_lock_slowpath+0x1480/0x1480 [ 32.421128] ? futex_wait+0x402/0x9a0 [ 32.424903] ? lock_downgrade+0x980/0x980 [ 32.429020] ? __unqueue_futex+0x1c0/0x290 [ 32.433232] ? lock_release+0xa40/0xa40 [ 32.437178] ? fault_in_user_writeable+0x90/0x90 [ 32.441905] ? do_raw_spin_trylock+0x190/0x190 [ 32.446456] ? futex_wake+0x680/0x680 [ 32.450230] ? check_noncircular+0x20/0x20 [ 32.454438] ? drop_futex_key_refs.isra.12+0x63/0xb0 [ 32.459509] ? futex_wait+0x6a9/0x9a0 [ 32.463297] ? find_held_lock+0x35/0x1d0 [ 32.467340] ? get_signal+0x7ae/0x16c0 [ 32.471198] ? lock_downgrade+0x980/0x980 [ 32.475323] do_group_exit+0x149/0x400 [ 32.479180] ? do_raw_spin_trylock+0x190/0x190 [ 32.483735] ? SyS_exit+0x30/0x30 [ 32.487163] ? _raw_spin_unlock_irq+0x27/0x70 [ 32.491629] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.496618] get_signal+0x73f/0x16c0 [ 32.500307] ? ptrace_notify+0x130/0x130 [ 32.504341] ? exit_robust_list+0x240/0x240 [ 32.508631] ? debug_mutex_init+0x2d/0x60 [ 32.512768] ? __mutex_init+0x1c7/0x2a0 [ 32.516713] ? SyS_membarrier+0x600/0x600 [ 32.520830] ? find_held_lock+0x35/0x1d0 [ 32.524865] do_signal+0x90/0x1eb0 [ 32.528373] ? __fd_install+0x25f/0x740 [ 32.532318] ? lock_downgrade+0x980/0x980 [ 32.536436] ? setup_sigcontext+0x7d0/0x7d0 [ 32.540736] ? __lock_is_held+0xb6/0x140 [ 32.544773] ? get_unused_fd_flags+0x190/0x190 [ 32.549329] ? alloc_file+0x27e/0x390 [ 32.553097] ? _raw_spin_unlock+0x22/0x30 [ 32.557217] ? exit_to_usermode_loop+0x8c/0x310 [ 32.561857] exit_to_usermode_loop+0x214/0x310 [ 32.566410] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 32.571923] syscall_return_slowpath+0x490/0x550 [ 32.576645] ? prepare_exit_to_usermode+0x340/0x340 [ 32.581633] ? entry_SYSCALL_64_fastpath+0x73/0xa0 [ 32.586533] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.591529] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 32.596258] entry_SYSCALL_64_fastpath+0x9e/0xa0 [ 32.600981] RIP: 0033:0x445819 [ 32.604158] RSP: 002b:00007fad17780da8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 32.611835] RAX: fffffffffffffe00 RBX: 00000000006dac3c RCX: 0000000000445819 [ 32.619084] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000006dac3c [ 32.626333] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 32.633572] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dac38 [ 32.640811] R13: 0100000000000000 R14: 656c6c616b7a7973 R15: 000000000000000b [ 32.648417] Dumping ftrace buffer: [ 32.651925] (ftrace buffer empty) [ 32.655606] Kernel Offset: disabled [ 32.659208] Rebooting in 86400 seconds..