[ 44.069856] audit: type=1800 audit(1582621111.596:31): pid=7943 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2469 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 49.655437] kauditd_printk_skb: 3 callbacks suppressed [ 49.655451] audit: type=1400 audit(1582621117.246:35): avc: denied { map } for pid=8115 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 '10.128.10.43' (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 executing program executing program executing program executing program executing program executing program executing program executing program [ 850.108436] audit: type=1400 audit(1582621917.696:36): avc: denied { map } for pid=8127 comm="syz-executor077" path="/root/syz-executor077618090" dev="sda1" ino=1426 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 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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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 1023.912843] INFO: task syz-executor077:12368 blocked for more than 140 seconds. [ 1023.912855] Not tainted 4.19.106-syzkaller #0 [ 1023.912861] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1023.912868] syz-executor077 D28216 12368 8129 0x00000004 [ 1023.912891] Call Trace: [ 1023.912981] __schedule+0x866/0x1dc0 [ 1023.912997] ? __mutex_lock+0x721/0x1300 [ 1023.913018] ? firmware_map_remove+0x1a6/0x1a6 [ 1023.913036] ? kasan_check_read+0x11/0x20 [ 1023.913054] schedule+0x92/0x1c0 [ 1023.913072] schedule_preempt_disabled+0x13/0x20 [ 1023.913084] __mutex_lock+0x726/0x1300 [ 1023.913134] ? tty_buffer_lock_exclusive+0x30/0x40 [ 1023.913154] ? mutex_trylock+0x1e0/0x1e0 [ 1023.913189] mutex_lock_nested+0x16/0x20 [ 1023.913201] ? mutex_lock_nested+0x16/0x20 [ 1023.913216] tty_buffer_lock_exclusive+0x30/0x40 [ 1023.913259] paste_selection+0x11d/0x443 [ 1023.913275] ? find_held_lock+0x35/0x130 [ 1023.913296] ? set_selection+0x1370/0x1370 [ 1023.913314] ? lock_downgrade+0x880/0x880 [ 1023.913330] ? wake_up_q+0x100/0x100 [ 1023.913383] tioclinux+0x133/0x470 [ 1023.913402] vt_ioctl+0x19ab/0x2530 [ 1023.913420] ? complete_change_console+0x3a0/0x3a0 [ 1023.913435] ? avc_has_extended_perms+0xa78/0x10f0 [ 1023.913456] ? avc_ss_reset+0x190/0x190 [ 1023.913469] ? save_stack+0xa9/0xd0 [ 1023.913483] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 1023.913498] ? tty_jobctrl_ioctl+0x50/0xcd0 [ 1023.913513] ? complete_change_console+0x3a0/0x3a0 [ 1023.913528] tty_ioctl+0x7f3/0x1510 [ 1023.913552] ? tty_vhangup+0x30/0x30 [ 1023.913567] ? find_held_lock+0x35/0x130 [ 1023.913649] ? debug_check_no_obj_freed+0x200/0x464 [ 1023.913679] ? __might_sleep+0x95/0x190 [ 1023.913693] ? trace_hardirqs_off+0x62/0x220 [ 1023.913707] ? tty_vhangup+0x30/0x30 [ 1023.913723] do_vfs_ioctl+0xd5f/0x1380 [ 1023.913739] ? selinux_file_ioctl+0x46c/0x5d0 [ 1023.913754] ? selinux_file_ioctl+0x125/0x5d0 [ 1023.913769] ? ioctl_preallocate+0x210/0x210 [ 1023.913784] ? selinux_file_mprotect+0x620/0x620 [ 1023.913799] ? putname+0xef/0x130 [ 1023.913813] ? kmem_cache_free+0x222/0x260 [ 1023.913830] ? putname+0xf4/0x130 [ 1023.913846] ? do_sys_open+0x31d/0x550 [ 1023.913865] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 1023.913881] ? security_file_ioctl+0x8d/0xc0 [ 1023.913898] ksys_ioctl+0xab/0xd0 [ 1023.913916] __x64_sys_ioctl+0x73/0xb0 [ 1023.913933] do_syscall_64+0xfd/0x620 [ 1023.913952] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1023.913963] RIP: 0033:0x441339 [ 1023.913984] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 1023.913992] RSP: 002b:00007fff40ce15e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 1023.914006] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441339 [ 1023.914015] RDX: 0000000020000000 RSI: 000000000000541c RDI: 0000000000000004 [ 1023.914023] RBP: 00000000000d6104 R08: 000000000000000d R09: 00000000004002c8 [ 1023.914031] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004020b0 [ 1023.914039] R13: 0000000000402140 R14: 0000000000000000 R15: 0000000000000000 [ 1023.914065] INFO: task syz-executor077:12369 blocked for more than 140 seconds. [ 1023.914073] Not tainted 4.19.106-syzkaller #0 [ 1023.914079] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1023.914085] syz-executor077 D28216 12369 8133 0x00000004 [ 1023.914106] Call Trace: [ 1023.914127] __schedule+0x866/0x1dc0 [ 1023.914139] ? __mutex_lock+0x721/0x1300 [ 1023.914160] ? firmware_map_remove+0x1a6/0x1a6 [ 1023.914176] ? kasan_check_read+0x11/0x20 [ 1023.914195] schedule+0x92/0x1c0 [ 1023.914212] schedule_preempt_disabled+0x13/0x20 [ 1023.914224] __mutex_lock+0x726/0x1300 [ 1023.914242] ? tty_buffer_lock_exclusive+0x30/0x40 [ 1023.914259] ? mutex_trylock+0x1e0/0x1e0 [ 1023.914293] mutex_lock_nested+0x16/0x20 [ 1023.914305] ? mutex_lock_nested+0x16/0x20 [ 1023.914320] tty_buffer_lock_exclusive+0x30/0x40 [ 1023.914335] paste_selection+0x11d/0x443 [ 1023.914349] ? find_held_lock+0x35/0x130 [ 1023.914369] ? set_selection+0x1370/0x1370 [ 1023.914386] ? lock_downgrade+0x880/0x880 [ 1023.914401] ? wake_up_q+0x100/0x100 [ 1023.914426] tioclinux+0x133/0x470 [ 1023.914444] vt_ioctl+0x19ab/0x2530 [ 1023.914462] ? complete_change_console+0x3a0/0x3a0 [ 1023.914475] ? avc_has_extended_perms+0xa78/0x10f0 [ 1023.914497] ? avc_ss_reset+0x190/0x190 [ 1023.914509] ? save_stack+0xa9/0xd0 [ 1023.914521] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 1023.914536] ? tty_jobctrl_ioctl+0x50/0xcd0 [ 1023.914556] ? complete_change_console+0x3a0/0x3a0 [ 1023.914573] tty_ioctl+0x7f3/0x1510 [ 1023.914589] ? tty_vhangup+0x30/0x30 [ 1023.914603] ? find_held_lock+0x35/0x130 [ 1023.914620] ? debug_check_no_obj_freed+0x200/0x464 [ 1023.914650] ? __might_sleep+0x95/0x190 [ 1023.914663] ? trace_hardirqs_off+0x62/0x220 [ 1023.914676] ? tty_vhangup+0x30/0x30 [ 1023.914692] do_vfs_ioctl+0xd5f/0x1380 [ 1023.914707] ? selinux_file_ioctl+0x46c/0x5d0 [ 1023.914722] ? selinux_file_ioctl+0x125/0x5d0 [ 1023.914739] ? ioctl_preallocate+0x210/0x210 [ 1023.914753] ? selinux_file_mprotect+0x620/0x620 [ 1024.875303] ? putname+0xef/0x130 [ 1024.875323] ? kmem_cache_free+0x222/0x260 [ 1024.875340] ? putname+0xf4/0x130 [ 1024.875356] ? do_sys_open+0x31d/0x550 [ 1024.875376] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 1024.875393] ? security_file_ioctl+0x8d/0xc0 [ 1024.875411] ksys_ioctl+0xab/0xd0 [ 1024.875429] __x64_sys_ioctl+0x73/0xb0 [ 1024.875447] do_syscall_64+0xfd/0x620 [ 1024.875468] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1024.875480] RIP: 0033:0x441339 [ 1024.875495] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 1024.875503] RSP: 002b:00007fff40ce15e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 1024.875516] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441339 [ 1024.875525] RDX: 0000000020000000 RSI: 000000000000541c RDI: 0000000000000004 [ 1024.875533] RBP: 00000000000d60fc R08: 000000000000000d R09: 00000000004002c8 [ 1024.875541] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004020b0 [ 1024.875549] R13: 0000000000402140 R14: 0000000000000000 R15: 0000000000000000 [ 1024.875605] INFO: task syz-executor077:12370 blocked for more than 140 seconds. [ 1024.875614] Not tainted 4.19.106-syzkaller #0 [ 1024.875619] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1024.875625] syz-executor077 D27808 12370 8131 0x00000004 [ 1024.875646] Call Trace: [ 1024.875668] __schedule+0x866/0x1dc0 [ 1024.875691] ? __mutex_lock+0x721/0x1300 [ 1024.875714] ? firmware_map_remove+0x1a6/0x1a6 [ 1024.875731] ? kasan_check_read+0x11/0x20 [ 1024.875750] schedule+0x92/0x1c0 [ 1024.875767] schedule_preempt_disabled+0x13/0x20 [ 1024.875779] __mutex_lock+0x726/0x1300 [ 1024.875797] ? tty_buffer_lock_exclusive+0x30/0x40 [ 1024.875816] ? mutex_trylock+0x1e0/0x1e0 [ 1024.875850] mutex_lock_nested+0x16/0x20 [ 1024.875861] ? mutex_lock_nested+0x16/0x20 [ 1024.875877] tty_buffer_lock_exclusive+0x30/0x40 [ 1024.875893] paste_selection+0x11d/0x443 [ 1024.875907] ? find_held_lock+0x35/0x130 [ 1024.875928] ? set_selection+0x1370/0x1370 [ 1024.875945] ? lock_downgrade+0x880/0x880 [ 1024.875962] ? wake_up_q+0x100/0x100 [ 1024.875986] tioclinux+0x133/0x470 [ 1024.876003] vt_ioctl+0x19ab/0x2530 [ 1024.876021] ? complete_change_console+0x3a0/0x3a0 [ 1024.876035] ? avc_has_extended_perms+0xa78/0x10f0 [ 1024.876057] ? avc_ss_reset+0x190/0x190 [ 1024.876069] ? save_stack+0xa9/0xd0 [ 1024.876082] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 1024.876097] ? tty_jobctrl_ioctl+0x50/0xcd0 [ 1024.876111] ? complete_change_console+0x3a0/0x3a0 [ 1024.876127] tty_ioctl+0x7f3/0x1510 [ 1024.876143] ? tty_vhangup+0x30/0x30 [ 1024.876157] ? find_held_lock+0x35/0x130 [ 1024.876175] ? debug_check_no_obj_freed+0x200/0x464 [ 1024.876204] ? __might_sleep+0x95/0x190 [ 1024.876218] ? trace_hardirqs_off+0x62/0x220 [ 1024.876231] ? tty_vhangup+0x30/0x30 [ 1024.876247] do_vfs_ioctl+0xd5f/0x1380 [ 1024.876263] ? selinux_file_ioctl+0x46c/0x5d0 [ 1024.876279] ? selinux_file_ioctl+0x125/0x5d0 [ 1024.876294] ? ioctl_preallocate+0x210/0x210 [ 1024.876309] ? selinux_file_mprotect+0x620/0x620 [ 1024.876323] ? putname+0xef/0x130 [ 1024.876337] ? kmem_cache_free+0x222/0x260 [ 1024.876354] ? putname+0xf4/0x130 [ 1024.876370] ? do_sys_open+0x31d/0x550 [ 1024.876389] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 1024.876404] ? security_file_ioctl+0x8d/0xc0 [ 1024.876420] ksys_ioctl+0xab/0xd0 [ 1024.876437] __x64_sys_ioctl+0x73/0xb0 [ 1024.876454] do_syscall_64+0xfd/0x620 [ 1024.876472] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1024.876483] RIP: 0033:0x441339 [ 1024.876496] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 1024.876503] RSP: 002b:00007fff40ce15e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 1024.876516] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441339 [ 1024.876525] RDX: 0000000020000000 RSI: 000000000000541c RDI: 0000000000000004 [ 1024.876533] RBP: 00000000000d6118 R08: 000000000000000d R09: 00000000004002c8 [ 1024.876542] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004020b0 [ 1024.876550] R13: 0000000000402140 R14: 0000000000000000 R15: 0000000000000000 [ 1024.876575] INFO: task syz-executor077:12371 blocked for more than 140 seconds. [ 1024.876583] Not tainted 4.19.106-syzkaller #0 [ 1024.876588] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1024.876594] syz-executor077 D28216 12371 8130 0x00000004 [ 1024.876615] Call Trace: [ 1024.876635] __schedule+0x866/0x1dc0 [ 1024.876647] ? __mutex_lock+0x721/0x1300 [ 1024.876668] ? firmware_map_remove+0x1a6/0x1a6 [ 1024.876690] ? kasan_check_read+0x11/0x20 [ 1024.876710] schedule+0x92/0x1c0 [ 1024.876727] schedule_preempt_disabled+0x13/0x20 [ 1024.876740] __mutex_lock+0x726/0x1300 [ 1024.876758] ? tty_buffer_lock_exclusive+0x30/0x40 [ 1024.876775] ? mutex_trylock+0x1e0/0x1e0 [ 1024.876810] mutex_lock_nested+0x16/0x20 [ 1024.876821] ? mutex_lock_nested+0x16/0x20 [ 1024.876836] tty_buffer_lock_exclusive+0x30/0x40 [ 1024.876853] paste_selection+0x11d/0x443 [ 1024.876865] ? find_held_lock+0x35/0x130 [ 1024.876886] ? set_selection+0x1370/0x1370 [ 1024.876903] ? lock_downgrade+0x880/0x880 [ 1024.876919] ? wake_up_q+0x100/0x100 [ 1024.876943] tioclinux+0x133/0x470 [ 1024.876960] vt_ioctl+0x19ab/0x2530 [ 1024.876978] ? complete_change_console+0x3a0/0x3a0 [ 1024.876991] ? avc_has_extended_perms+0xa78/0x10f0 [ 1024.877014] ? avc_ss_reset+0x190/0x190 [ 1024.877026] ? save_stack+0xa9/0xd0 [ 1024.877039] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 1024.877054] ? tty_jobctrl_ioctl+0x50/0xcd0 [ 1024.877068] ? complete_change_console+0x3a0/0x3a0 [ 1024.877084] tty_ioctl+0x7f3/0x1510 [ 1024.877101] ? tty_vhangup+0x30/0x30 [ 1024.877116] ? find_held_lock+0x35/0x130 [ 1024.877133] ? debug_check_no_obj_freed+0x200/0x464 [ 1024.877161] ? __might_sleep+0x95/0x190 [ 1024.877174] ? trace_hardirqs_off+0x62/0x220 [ 1024.877187] ? tty_vhangup+0x30/0x30 [ 1024.877203] do_vfs_ioctl+0xd5f/0x1380 [ 1024.877218] ? selinux_file_ioctl+0x46c/0x5d0 [ 1024.877233] ? selinux_file_ioctl+0x125/0x5d0 [ 1024.877248] ? ioctl_preallocate+0x210/0x210 [ 1024.877263] ? selinux_file_mprotect+0x620/0x620 [ 1024.877276] ? putname+0xef/0x130 [ 1024.877291] ? kmem_cache_free+0x222/0x260 [ 1024.877307] ? putname+0xf4/0x130 [ 1024.877323] ? do_sys_open+0x31d/0x550 [ 1024.877342] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 1024.877356] ? security_file_ioctl+0x8d/0xc0 [ 1024.877373] ksys_ioctl+0xab/0xd0 [ 1024.877390] __x64_sys_ioctl+0x73/0xb0 [ 1024.877407] do_syscall_64+0xfd/0x620 [ 1024.877426] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1024.877435] RIP: 0033:0x441339 [ 1024.877448] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 1024.877455] RSP: 002b:00007fff40ce15e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 1024.877468] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441339 [ 1024.877476] RDX: 0000000020000000 RSI: 000000000000541c RDI: 0000000000000004 [ 1024.877484] RBP: 00000000000d610d R08: 000000000000000d R09: 00000000004002c8 [ 1024.877493] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004020b0 [ 1024.877501] R13: 0000000000402140 R14: 0000000000000000 R15: 0000000000000000 [ 1024.877527] INFO: task syz-executor077:12372 blocked for more than 140 seconds. [ 1024.877535] Not tainted 4.19.106-syzkaller #0 [ 1024.877541] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1024.877547] syz-executor077 D28216 12372 8128 0x00000004 [ 1024.877567] Call Trace: [ 1024.877587] __schedule+0x866/0x1dc0 [ 1024.877599] ? __mutex_lock+0x721/0x1300 [ 1024.877620] ? firmware_map_remove+0x1a6/0x1a6 [ 1024.877637] ? kasan_check_read+0x11/0x20 [ 1024.877656] schedule+0x92/0x1c0 [ 1024.877673] schedule_preempt_disabled+0x13/0x20 [ 1024.877690] __mutex_lock+0x726/0x1300 [ 1024.877708] ? tty_buffer_lock_exclusive+0x30/0x40 [ 1024.877726] ? mutex_trylock+0x1e0/0x1e0 [ 1024.877762] mutex_lock_nested+0x16/0x20 [ 1024.877773] ? mutex_lock_nested+0x16/0x20 [ 1024.877788] tty_buffer_lock_exclusive+0x30/0x40 [ 1024.877804] paste_selection+0x11d/0x443 [ 1024.877817] ? find_held_lock+0x35/0x130 [ 1024.877837] ? set_selection+0x1370/0x1370 [ 1024.877855] ? lock_downgrade+0x880/0x880 [ 1024.877870] ? wake_up_q+0x100/0x100 [ 1024.877894] tioclinux+0x133/0x470 [ 1024.877911] vt_ioctl+0x19ab/0x2530 [ 1024.877929] ? complete_change_console+0x3a0/0x3a0 [ 1024.877942] ? avc_has_extended_perms+0xa78/0x10f0 [ 1024.877965] ? avc_ss_reset+0x190/0x190 [ 1024.877977] ? save_stack+0xa9/0xd0 [ 1024.877989] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 1024.878004] ? tty_jobctrl_ioctl+0x50/0xcd0 [ 1024.878018] ? complete_change_console+0x3a0/0x3a0 [ 1024.878034] tty_ioctl+0x7f3/0x1510 [ 1024.878050] ? tty_vhangup+0x30/0x30 [ 1024.878065] ? find_held_lock+0x35/0x130 [ 1024.878082] ? debug_check_no_obj_freed+0x200/0x464 [ 1024.878110] ? __might_sleep+0x95/0x190 [ 1024.878123] ? trace_hardirqs_off+0x62/0x220 [ 1024.878136] ? tty_vhangup+0x30/0x30 [ 1024.878152] do_vfs_ioctl+0xd5f/0x1380 [ 1024.878167] ? selinux_file_ioctl+0x46c/0x5d0 [ 1024.878182] ? selinux_file_ioctl+0x125/0x5d0 [ 1024.878197] ? ioctl_preallocate+0x210/0x210 [ 1024.878212] ? selinux_file_mprotect+0x620/0x620 [ 1024.878226] ? putname+0xef/0x130 [ 1024.878240] ? kmem_cache_free+0x222/0x260 [ 1024.878257] ? putname+0xf4/0x130 [ 1024.878273] ? do_sys_open+0x31d/0x550 [ 1024.878292] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 1024.878306] ? security_file_ioctl+0x8d/0xc0 [ 1024.878324] ksys_ioctl+0xab/0xd0 [ 1024.878341] __x64_sys_ioctl+0x73/0xb0 [ 1024.878358] do_syscall_64+0xfd/0x620 [ 1024.878376] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1024.878386] RIP: 0033:0x441339 [ 1024.878398] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 1024.878406] RSP: 002b:00007fff40ce15e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 1024.878418] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441339 [ 1024.878426] RDX: 0000000020000000 RSI: 000000000000541c RDI: 0000000000000004 [ 1024.878435] RBP: 00000000000d6119 R08: 000000000000000d R09: 00000000004002c8 [ 1024.878443] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004020b0 [ 1024.878451] R13: 0000000000402140 R14: 0000000000000000 R15: 0000000000000000 [ 1024.878472] [ 1024.878472] Showing all locks held in the system: [ 1024.878487] 1 lock held by khungtaskd/1079: [ 1024.878491] #0: 00000000918f6f5d (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x27e [ 1024.878553] 1 lock held by rsyslogd/7981: [ 1024.878558] #0: 000000006b3ae0b9 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 [ 1024.878588] 5 locks held by getty/8103: [ 1024.878597] 2 locks held by getty/8104: [ 1024.878601] #0: 000000007280397e (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 1024.878625] #1: 00000000615fd4a6 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 1024.878653] 2 locks held by getty/8105: [ 1024.878658] #0: 0000000012c55922 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 1024.878686] #1: 0000000036792d62 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 1024.878716] 2 locks held by getty/8106: [ 1024.878720] #0: 0000000093f9ee33 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 1024.878741] #1: 0000000006c63f02 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 1024.878770] 2 locks held by getty/8107: [ 1024.878775] #0: 00000000f0b6a8ef (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 1024.878799] #1: 0000000018ad429e (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 1024.878828] 2 locks held by getty/8108: [ 1024.878832] #0: 00000000bdf9baf3 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 1024.878855] #1: 000000006609f09a (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 1024.878883] 2 locks held by getty/8109: [ 1024.878888] #0: 0000000056da335a (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 1024.878911] #1: 000000004fd20dbe (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x232/0x1b70 [ 1024.878943] 2 locks held by syz-executor077/12367: [ 1024.878951] 2 locks held by syz-executor077/12368: [ 1024.878956] #0: 00000000be3cfe3b (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 1024.878979] #1: 00000000bc9c7a05 (&buf->lock){+.+.}, at: tty_buffer_lock_exclusive+0x30/0x40 [ 1024.879010] 2 locks held by syz-executor077/12369: [ 1024.879015] #0: 00000000be3cfe3b (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 1024.879038] #1: 00000000bc9c7a05 (&buf->lock){+.+.}, at: tty_buffer_lock_exclusive+0x30/0x40 [ 1024.879068] 2 locks held by syz-executor077/12370: [ 1024.879072] #0: 00000000be3cfe3b (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 1024.879095] #1: 00000000bc9c7a05 (&buf->lock){+.+.}, at: tty_buffer_lock_exclusive+0x30/0x40 [ 1024.879126] 2 locks held by syz-executor077/12371: [ 1024.879130] #0: 00000000be3cfe3b (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 1024.879154] #1: 00000000bc9c7a05 (&buf->lock){+.+.}, at: tty_buffer_lock_exclusive+0x30/0x40 [ 1024.879184] 2 locks held by syz-executor077/12372: [ 1024.879188] #0: 00000000be3cfe3b (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 1024.879211] #1: 00000000bc9c7a05 (&buf->lock){+.+.}, at: tty_buffer_lock_exclusive+0x30/0x40 [ 1024.879236] [ 1024.879241] ============================================= [ 1024.879241] [ 1024.879248] NMI backtrace for cpu 1 [ 1024.879262] CPU: 1 PID: 1079 Comm: khungtaskd Not tainted 4.19.106-syzkaller #0 [ 1024.879269] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1024.879274] Call Trace: [ 1024.879346] dump_stack+0x197/0x210 [ 1024.879367] nmi_cpu_backtrace.cold+0x63/0xa4 [ 1024.879384] ? lapic_can_unplug_cpu.cold+0x47/0x47 [ 1024.879398] nmi_trigger_cpumask_backtrace+0x1b0/0x1f8 [ 1024.879415] arch_trigger_cpumask_backtrace+0x14/0x20 [ 1024.879426] watchdog+0x9df/0xee0 [ 1024.879450] kthread+0x354/0x420 [ 1024.879462] ? reset_hung_task_detector+0x30/0x30 [ 1024.879476] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 1024.879491] ret_from_fork+0x24/0x30 [ 1024.879515] Sending NMI from CPU 1 to CPUs 0: [ 1024.880528] NMI backtrace for cpu 0 [ 1024.880535] CPU: 0 PID: 8103 Comm: getty Not tainted 4.19.106-syzkaller #0 [ 1024.880542] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1024.880546] RIP: 0010:vga16fb_imageblit+0x9f6/0x2200 [ 1024.880558] Code: 88 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 91 15 00 00 ff 15 a5 33 63 05 b8 ff ff ff ff ba cf 03 00 00 ee <48> c7 c2 10 55 f2 88 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 [ 1024.880562] RSP: 0018:ffff888099677220 EFLAGS: 00000246 [ 1024.880571] RAX: 00000000ffffffff RBX: 0000000000000007 RCX: ffffffff838f1ed8 [ 1024.880577] RDX: 00000000000003cf RSI: ffffffff838f1ee6 RDI: ffff8880996773d8 [ 1024.880582] RBP: ffff8880996772b8 R08: ffff8880a03be1c0 R09: 000000000000001d [ 1024.880588] R10: ffffed1014a9cdc7 R11: ffff8880a54e6e3f R12: ffff8880996773cc [ 1024.880593] R13: ffff8880996773c8 R14: ffff8880a54adea0 R15: 0000000000000001 [ 1024.880600] FS: 00007fbf98f0f700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 1024.880605] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1024.880610] CR2: 00007fbf98f14000 CR3: 00000000a8970000 CR4: 00000000001406f0 [ 1024.880616] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1024.880622] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1024.880625] Call Trace: [ 1024.880629] ? finish_task_switch+0x1db/0x7c0 [ 1024.880634] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 1024.880637] bit_putcs+0x9a3/0xf10 [ 1024.880641] ? bit_cursor+0x1a60/0x1a60 [ 1024.880645] ? write_comp_data+0x11/0x70 [ 1024.880650] ? fb_get_color_depth.part.0+0xcf/0x200 [ 1024.880654] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 1024.880658] fbcon_putcs+0x42b/0x4f0 [ 1024.880662] ? bit_cursor+0x1a60/0x1a60 [ 1024.880666] fbcon_redraw.isra.0+0x291/0x490 [ 1024.880670] fbcon_scroll+0xbae/0x3780 [ 1024.880674] con_scroll+0x5b4/0x6b0 [ 1024.880677] lf+0x285/0x2e0 [ 1024.880681] ? con_scroll+0x6b0/0x6b0 [ 1024.880686] ? __atomic_notifier_call_chain+0xd6/0x1a0 [ 1024.880690] ? find_held_lock+0x35/0x130 [ 1024.880693] do_con_trol+0x605/0x6070 [ 1024.880697] ? reset_palette+0x190/0x190 [ 1024.880701] ? kasan_check_read+0x11/0x20 [ 1024.880706] ? __atomic_notifier_call_chain+0xfd/0x1a0 [ 1024.880710] do_con_write.part.0+0xfd5/0x1eb0 [ 1024.880714] ? lock_acquire+0x16f/0x3f0 [ 1024.880718] ? n_tty_write+0x4a0/0x1140 [ 1024.880722] ? do_con_trol+0x6070/0x6070 [ 1024.880726] ? mutex_trylock+0x1e0/0x1e0 [ 1024.880730] ? kasan_check_write+0x14/0x20 [ 1024.880734] ? __mutex_unlock_slowpath+0xf8/0x6b0 [ 1024.880738] ? console_unlock+0x860/0x10d0 [ 1024.880742] con_write+0x46/0xd0 [ 1024.880746] do_output_char+0x5f7/0x880 [ 1024.880750] ? con_write_room+0x5d/0x70 [ 1024.880753] n_tty_write+0x4b5/0x1140 [ 1024.880757] ? process_echoes+0x170/0x170 [ 1024.880761] ? do_wait_intr_irq+0x2b0/0x2b0 [ 1024.880766] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 1024.880770] ? _copy_from_user+0xdd/0x150 [ 1024.880773] tty_write+0x458/0x7a0 [ 1024.880777] ? process_echoes+0x170/0x170 [ 1024.880781] __vfs_write+0x114/0x810 [ 1024.880785] ? tty_read+0x2a0/0x2a0 [ 1024.880788] ? kernel_read+0x120/0x120 [ 1024.880793] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 1024.880798] ? __inode_security_revalidate+0xda/0x120 [ 1024.880802] ? avc_policy_seqno+0xd/0x70 [ 1024.880806] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 1024.880810] ? selinux_file_permission+0x92/0x550 [ 1024.880815] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 1024.880819] ? security_file_permission+0x89/0x230 [ 1024.880822] ? rw_verify_area+0x118/0x360 [ 1024.880824] vfs_write+0x20c/0x560 [ 1024.880826] ksys_write+0x14f/0x2d0 [ 1024.880828] ? __ia32_sys_read+0xb0/0xb0 [ 1024.880831] ? do_syscall_64+0x26/0x620 [ 1024.880833] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1024.880836] ? do_syscall_64+0x26/0x620 [ 1024.880838] __x64_sys_write+0x73/0xb0 [ 1024.880840] do_syscall_64+0xfd/0x620 [ 1024.880843] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1024.880845] RIP: 0033:0x7fbf9883a370 [ 1024.880853] Code: 73 01 c3 48 8b 0d c8 4a 2b 00 31 d2 48 29 c2 64 89 11 48 83 c8 ff eb ea 90 90 83 3d 85 a2 2b 00 00 75 10 b8 01 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 0e 8a 01 00 48 89 04 24 [ 1024.880855] RSP: 002b:00007ffc0e0d0b88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1024.880870] RAX: ffffffffffffffda RBX: 0000000000607340 RCX: 00007fbf9883a370 [ 1024.880873] RDX: 0000000000000002 RSI: 00000000004059fb RDI: 0000000000000001 [ 1024.880877] RBP: 0000000000000002 R08: 000000000000000a R09: 00007fbf98f0f700 [ 1024.880880] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc0e0d16e0 [ 1024.880884] R13: 00007fbf98f0f6a8 R14: 00000000004059fb R15: 0000000000000000 [ 1024.880913] Kernel panic - not syncing: hung_task: blocked tasks [ 1024.880929] CPU: 1 PID: 1079 Comm: khungtaskd Not tainted 4.19.106-syzkaller #0 [ 1024.880937] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1024.880941] Call Trace: [ 1024.880958] dump_stack+0x197/0x210 [ 1024.880978] panic+0x26a/0x50e [ 1024.880993] ? __warn_printk+0xf3/0xf3 [ 1024.881011] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 1024.881023] ? printk_safe_flush+0xf2/0x140 [ 1024.881035] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 1024.881050] ? lapic_can_unplug_cpu.cold+0x47/0x47 [ 1024.881062] ? nmi_trigger_cpumask_backtrace+0x16e/0x1f8 [ 1024.881075] ? nmi_trigger_cpumask_backtrace+0x165/0x1f8 [ 1024.881090] watchdog+0x9f0/0xee0 [ 1024.881113] kthread+0x354/0x420 [ 1024.881125] ? reset_hung_task_detector+0x30/0x30 [ 1024.881138] ? kthread_cancel_delayed_work_sync+0x20/0x20 [ 1024.881154] ret_from_fork+0x24/0x30 [ 1024.882467] Kernel Offset: disabled [ 1026.761924] Rebooting in 86400 seconds..