Warning: Permanently added '10.128.0.103' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 596.004533][ T1140] INFO: task syz-executor749:7029 blocked for more than 143 seconds. [ 596.004555][ T1140] Not tainted 5.7.0-rc2-syzkaller #0 [ 596.004561][ T1140] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 596.004568][ T1140] syz-executor749 D28128 7029 7027 0x00000004 [ 596.004592][ T1140] Call Trace: [ 596.004776][ T1140] ? __schedule+0x937/0x1ff0 [ 596.004801][ T1140] ? __sched_text_start+0x8/0x8 [ 596.004828][ T1140] schedule+0xd0/0x2a0 [ 596.004848][ T1140] schedule_preempt_disabled+0xf/0x20 [ 596.004861][ T1140] __mutex_lock+0x7ab/0x13c0 [ 596.004903][ T1140] ? fb_open+0xd3/0x430 [ 596.004922][ T1140] ? mutex_trylock+0x2c0/0x2c0 [ 596.004940][ T1140] ? __mutex_unlock_slowpath+0xe2/0x660 [ 596.004979][ T1140] ? chrdev_open+0xc4/0x5c0 [ 596.005023][ T1140] ? lock_downgrade+0x840/0x840 [ 596.005046][ T1140] ? fb_open+0xd3/0x430 [ 596.005058][ T1140] fb_open+0xd3/0x430 [ 596.005113][ T1140] ? get_fb_info.part.0+0x80/0x80 [ 596.005127][ T1140] chrdev_open+0x219/0x5c0 [ 596.005143][ T1140] ? cdev_put.part.0+0x50/0x50 [ 596.005187][ T1140] ? security_file_open+0x84/0x410 [ 596.005206][ T1140] do_dentry_open+0x4ba/0x1290 [ 596.005222][ T1140] ? cdev_put.part.0+0x50/0x50 [ 596.005263][ T1140] ? security_inode_permission+0xc4/0xf0 [ 596.005277][ T1140] ? chown_common+0x550/0x550 [ 596.005320][ T1140] ? inode_permission+0xab/0x500 [ 596.005342][ T1140] path_openat+0x1e59/0x27d0 [ 596.005367][ T1140] ? path_lookupat.isra.0+0x530/0x530 [ 596.005380][ T1140] ? do_sys_openat2+0x467/0x7d0 [ 596.005410][ T1140] do_filp_open+0x192/0x260 [ 596.005425][ T1140] ? may_open_dev+0xf0/0xf0 [ 596.005448][ T1140] ? do_raw_spin_lock+0x129/0x2e0 [ 596.005474][ T1140] ? _raw_spin_unlock+0x24/0x40 [ 596.005496][ T1140] ? __alloc_fd+0x46d/0x600 [ 596.005519][ T1140] do_sys_openat2+0x585/0x7d0 [ 596.005537][ T1140] ? file_open_root+0x400/0x400 [ 596.005609][ T1140] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 596.005629][ T1140] do_sys_open+0xc3/0x140 [ 596.005644][ T1140] ? filp_open+0x70/0x70 [ 596.005687][ T1140] ? fpregs_mark_activate+0x320/0x320 [ 596.005723][ T1140] ? trace_hardirqs_off_caller+0x55/0x230 [ 596.005753][ T1140] do_syscall_64+0xf6/0x7d0 [ 596.005773][ T1140] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 596.005785][ T1140] RIP: 0033:0x441509 [ 596.005808][ T1140] Code: Bad RIP value. [ 596.005817][ T1140] RSP: 002b:00007ffd4b838a08 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 596.005832][ T1140] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441509 [ 596.005841][ T1140] RDX: 0000000000000000 RSI: 0000000020000180 RDI: ffffffffffffff9c [ 596.005849][ T1140] RBP: 00000000006cc018 R08: 00000000004002c8 R09: 00000000004002c8 [ 596.005858][ T1140] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402280 [ 596.005867][ T1140] R13: 0000000000402310 R14: 0000000000000000 R15: 0000000000000000 [ 596.005896][ T1140] INFO: task syz-executor749:7030 blocked for more than 143 seconds. [ 596.005905][ T1140] Not tainted 5.7.0-rc2-syzkaller #0 [ 596.005910][ T1140] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 596.005917][ T1140] syz-executor749 D28128 7030 7026 0x00000004 [ 596.005939][ T1140] Call Trace: [ 596.005960][ T1140] ? __schedule+0x937/0x1ff0 [ 596.005983][ T1140] ? __sched_text_start+0x8/0x8 [ 596.006010][ T1140] schedule+0xd0/0x2a0 [ 596.006029][ T1140] schedule_preempt_disabled+0xf/0x20 [ 596.006041][ T1140] __mutex_lock+0x7ab/0x13c0 [ 596.006058][ T1140] ? fb_open+0xd3/0x430 [ 596.006082][ T1140] ? mutex_trylock+0x2c0/0x2c0 [ 596.006100][ T1140] ? __mutex_unlock_slowpath+0xe2/0x660 [ 596.006114][ T1140] ? chrdev_open+0xc4/0x5c0 [ 596.006134][ T1140] ? lock_downgrade+0x840/0x840 [ 596.006156][ T1140] ? fb_open+0xd3/0x430 [ 596.006168][ T1140] fb_open+0xd3/0x430 [ 596.006185][ T1140] ? get_fb_info.part.0+0x80/0x80 [ 596.006198][ T1140] chrdev_open+0x219/0x5c0 [ 596.006214][ T1140] ? cdev_put.part.0+0x50/0x50 [ 596.006232][ T1140] ? security_file_open+0x84/0x410 [ 596.006250][ T1140] do_dentry_open+0x4ba/0x1290 [ 596.006266][ T1140] ? cdev_put.part.0+0x50/0x50 [ 596.006285][ T1140] ? security_inode_permission+0xc4/0xf0 [ 596.006299][ T1140] ? chown_common+0x550/0x550 [ 596.006316][ T1140] ? inode_permission+0xab/0x500 [ 596.006337][ T1140] path_openat+0x1e59/0x27d0 [ 596.006362][ T1140] ? path_lookupat.isra.0+0x530/0x530 [ 596.006381][ T1140] ? lock_acquire+0x1f2/0x8f0 [ 596.006405][ T1140] do_filp_open+0x192/0x260 [ 596.006421][ T1140] ? may_open_dev+0xf0/0xf0 [ 596.006444][ T1140] ? do_raw_spin_lock+0x129/0x2e0 [ 596.006469][ T1140] ? _raw_spin_unlock+0x24/0x40 [ 596.006484][ T1140] ? __alloc_fd+0x46d/0x600 [ 596.006507][ T1140] do_sys_openat2+0x585/0x7d0 [ 596.006524][ T1140] ? file_open_root+0x400/0x400 [ 596.006547][ T1140] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 596.006566][ T1140] do_sys_open+0xc3/0x140 [ 596.006581][ T1140] ? filp_open+0x70/0x70 [ 596.006599][ T1140] ? fpregs_mark_activate+0x320/0x320 [ 596.006615][ T1140] ? trace_hardirqs_off_caller+0x55/0x230 [ 596.006639][ T1140] do_syscall_64+0xf6/0x7d0 [ 596.006658][ T1140] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 596.006668][ T1140] RIP: 0033:0x441509 [ 596.006682][ T1140] Code: Bad RIP value. [ 596.006690][ T1140] RSP: 002b:00007ffd4b838a08 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 596.006703][ T1140] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441509 [ 596.006712][ T1140] RDX: 0000000000000000 RSI: 0000000020000180 RDI: ffffffffffffff9c [ 596.006721][ T1140] RBP: 00000000006cc018 R08: 00000000004002c8 R09: 00000000004002c8 [ 596.006730][ T1140] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402280 [ 596.006738][ T1140] R13: 0000000000402310 R14: 0000000000000000 R15: 0000000000000000 [ 596.006766][ T1140] INFO: task syz-executor749:7031 blocked for more than 143 seconds. [ 596.006774][ T1140] Not tainted 5.7.0-rc2-syzkaller #0 [ 596.006779][ T1140] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 596.006786][ T1140] syz-executor749 D27856 7031 7023 0x00000004 [ 596.006805][ T1140] Call Trace: [ 596.006826][ T1140] ? __schedule+0x937/0x1ff0 [ 596.006849][ T1140] ? __sched_text_start+0x8/0x8 [ 596.006876][ T1140] schedule+0xd0/0x2a0 [ 596.006895][ T1140] schedule_preempt_disabled+0xf/0x20 [ 596.006907][ T1140] __mutex_lock+0x7ab/0x13c0 [ 596.006924][ T1140] ? fb_open+0xd3/0x430 [ 596.006942][ T1140] ? mutex_trylock+0x2c0/0x2c0 [ 596.006960][ T1140] ? __mutex_unlock_slowpath+0xe2/0x660 [ 596.006973][ T1140] ? chrdev_open+0xc4/0x5c0 [ 596.006994][ T1140] ? lock_downgrade+0x840/0x840 [ 596.007016][ T1140] ? fb_open+0xd3/0x430 [ 596.007028][ T1140] fb_open+0xd3/0x430 [ 596.007044][ T1140] ? get_fb_info.part.0+0x80/0x80 [ 596.007058][ T1140] chrdev_open+0x219/0x5c0 [ 596.007078][ T1140] ? cdev_put.part.0+0x50/0x50 [ 596.007096][ T1140] ? security_file_open+0x84/0x410 [ 596.007114][ T1140] do_dentry_open+0x4ba/0x1290 [ 596.007130][ T1140] ? cdev_put.part.0+0x50/0x50 [ 596.007149][ T1140] ? security_inode_permission+0xc4/0xf0 [ 596.007163][ T1140] ? chown_common+0x550/0x550 [ 596.007180][ T1140] ? inode_permission+0xab/0x500 [ 596.007201][ T1140] path_openat+0x1e59/0x27d0 [ 596.007226][ T1140] ? path_lookupat.isra.0+0x530/0x530 [ 596.007245][ T1140] ? lock_acquire+0x1f2/0x8f0 [ 596.007270][ T1140] do_filp_open+0x192/0x260 [ 596.007285][ T1140] ? may_open_dev+0xf0/0xf0 [ 596.007308][ T1140] ? do_raw_spin_lock+0x129/0x2e0 [ 596.007333][ T1140] ? _raw_spin_unlock+0x24/0x40 [ 596.007348][ T1140] ? __alloc_fd+0x46d/0x600 [ 596.007371][ T1140] do_sys_openat2+0x585/0x7d0 [ 596.007388][ T1140] ? file_open_root+0x400/0x400 [ 596.007411][ T1140] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 596.007430][ T1140] do_sys_open+0xc3/0x140 [ 596.007444][ T1140] ? filp_open+0x70/0x70 [ 596.007463][ T1140] ? fpregs_mark_activate+0x320/0x320 [ 596.007478][ T1140] ? trace_hardirqs_off_caller+0x55/0x230 [ 596.007502][ T1140] do_syscall_64+0xf6/0x7d0 [ 596.007521][ T1140] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 596.007531][ T1140] RIP: 0033:0x441509 [ 596.007544][ T1140] Code: Bad RIP value. [ 596.007553][ T1140] RSP: 002b:00007ffd4b838a08 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 596.007565][ T1140] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441509 [ 596.007574][ T1140] RDX: 0000000000000000 RSI: 0000000020000180 RDI: ffffffffffffff9c [ 596.007583][ T1140] RBP: 00000000006cc018 R08: 00000000004002c8 R09: 00000000004002c8 [ 596.007592][ T1140] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402280 [ 596.007600][ T1140] R13: 0000000000402310 R14: 0000000000000000 R15: 0000000000000000 [ 596.007628][ T1140] INFO: task syz-executor749:7032 blocked for more than 143 seconds. [ 596.007636][ T1140] Not tainted 5.7.0-rc2-syzkaller #0 [ 596.007642][ T1140] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 596.007648][ T1140] syz-executor749 D28128 7032 7028 0x00000004 [ 596.007675][ T1140] Call Trace: [ 596.007696][ T1140] ? __schedule+0x937/0x1ff0 [ 596.007719][ T1140] ? __sched_text_start+0x8/0x8 [ 596.007745][ T1140] schedule+0xd0/0x2a0 [ 596.007765][ T1140] schedule_preempt_disabled+0xf/0x20 [ 596.007777][ T1140] __mutex_lock+0x7ab/0x13c0 [ 596.007793][ T1140] ? fb_open+0xd3/0x430 [ 596.007811][ T1140] ? mutex_trylock+0x2c0/0x2c0 [ 596.007830][ T1140] ? __mutex_unlock_slowpath+0xe2/0x660 [ 596.007843][ T1140] ? chrdev_open+0xc4/0x5c0 [ 596.007863][ T1140] ? lock_downgrade+0x840/0x840 [ 596.007886][ T1140] ? fb_open+0xd3/0x430 [ 596.007897][ T1140] fb_open+0xd3/0x430 [ 596.007914][ T1140] ? get_fb_info.part.0+0x80/0x80 [ 596.007927][ T1140] chrdev_open+0x219/0x5c0 [ 596.007943][ T1140] ? cdev_put.part.0+0x50/0x50 [ 596.007961][ T1140] ? security_file_open+0x84/0x410 [ 596.007979][ T1140] do_dentry_open+0x4ba/0x1290 [ 596.007995][ T1140] ? cdev_put.part.0+0x50/0x50 [ 596.008014][ T1140] ? security_inode_permission+0xc4/0xf0 [ 596.008028][ T1140] ? chown_common+0x550/0x550 [ 596.008045][ T1140] ? inode_permission+0xab/0x500 [ 596.008071][ T1140] path_openat+0x1e59/0x27d0 [ 596.008096][ T1140] ? path_lookupat.isra.0+0x530/0x530 [ 596.008115][ T1140] ? lock_acquire+0x1f2/0x8f0 [ 596.008139][ T1140] do_filp_open+0x192/0x260 [ 596.008155][ T1140] ? may_open_dev+0xf0/0xf0 [ 596.008177][ T1140] ? do_raw_spin_lock+0x129/0x2e0 [ 596.008203][ T1140] ? _raw_spin_unlock+0x24/0x40 [ 596.008217][ T1140] ? __alloc_fd+0x46d/0x600 [ 596.008240][ T1140] do_sys_openat2+0x585/0x7d0 [ 596.008264][ T1140] ? file_open_root+0x400/0x400 [ 596.008288][ T1140] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 596.008307][ T1140] do_sys_open+0xc3/0x140 [ 596.008321][ T1140] ? filp_open+0x70/0x70 [ 596.008340][ T1140] ? fpregs_mark_activate+0x320/0x320 [ 596.008355][ T1140] ? trace_hardirqs_off_caller+0x55/0x230 [ 596.008379][ T1140] do_syscall_64+0xf6/0x7d0 [ 596.008398][ T1140] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 596.008408][ T1140] RIP: 0033:0x441509 [ 596.008421][ T1140] Code: Bad RIP value. [ 596.008429][ T1140] RSP: 002b:00007ffd4b838a08 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 596.008443][ T1140] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441509 [ 596.008451][ T1140] RDX: 0000000000000000 RSI: 0000000020000180 RDI: ffffffffffffff9c [ 596.008460][ T1140] RBP: 00000000006cc018 R08: 00000000004002c8 R09: 00000000004002c8 [ 596.008469][ T1140] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402280 [ 596.008478][ T1140] R13: 0000000000402310 R14: 0000000000000000 R15: 0000000000000000 [ 596.008509][ T1140] INFO: task syz-executor749:7033 blocked for more than 143 seconds. [ 596.008518][ T1140] Not tainted 5.7.0-rc2-syzkaller #0 [ 596.008523][ T1140] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 596.008529][ T1140] syz-executor749 D28128 7033 7025 0x00004004 [ 596.008550][ T1140] Call Trace: [ 596.008570][ T1140] ? __schedule+0x937/0x1ff0 [ 596.008594][ T1140] ? __sched_text_start+0x8/0x8 [ 596.008620][ T1140] schedule+0xd0/0x2a0 [ 596.008640][ T1140] schedule_preempt_disabled+0xf/0x20 [ 596.008652][ T1140] __mutex_lock+0x7ab/0x13c0 [ 596.008668][ T1140] ? fb_open+0xd3/0x430 [ 596.008687][ T1140] ? mutex_trylock+0x2c0/0x2c0 [ 596.008705][ T1140] ? __mutex_unlock_slowpath+0xe2/0x660 [ 596.008718][ T1140] ? chrdev_open+0xc4/0x5c0 [ 596.008738][ T1140] ? lock_downgrade+0x840/0x840 [ 596.008761][ T1140] ? fb_open+0xd3/0x430 [ 596.008773][ T1140] fb_open+0xd3/0x430 [ 596.008789][ T1140] ? get_fb_info.part.0+0x80/0x80 [ 596.008802][ T1140] chrdev_open+0x219/0x5c0 [ 596.008819][ T1140] ? cdev_put.part.0+0x50/0x50 [ 596.008836][ T1140] ? security_file_open+0x84/0x410 [ 596.008854][ T1140] do_dentry_open+0x4ba/0x1290 [ 596.008870][ T1140] ? cdev_put.part.0+0x50/0x50 [ 596.008889][ T1140] ? security_inode_permission+0xc4/0xf0 [ 596.008903][ T1140] ? chown_common+0x550/0x550 [ 596.008920][ T1140] ? inode_permission+0xab/0x500 [ 596.008942][ T1140] path_openat+0x1e59/0x27d0 [ 596.008966][ T1140] ? path_lookupat.isra.0+0x530/0x530 [ 596.008986][ T1140] ? lock_acquire+0x1f2/0x8f0 [ 596.009010][ T1140] do_filp_open+0x192/0x260 [ 596.009025][ T1140] ? may_open_dev+0xf0/0xf0 [ 596.009048][ T1140] ? do_raw_spin_lock+0x129/0x2e0 [ 596.009079][ T1140] ? _raw_spin_unlock+0x24/0x40 [ 596.009093][ T1140] ? __alloc_fd+0x46d/0x600 [ 596.009116][ T1140] do_sys_openat2+0x585/0x7d0 [ 596.009134][ T1140] ? file_open_root+0x400/0x400 [ 596.009156][ T1140] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 596.009176][ T1140] do_sys_open+0xc3/0x140 [ 596.009190][ T1140] ? filp_open+0x70/0x70 [ 596.009205][ T1140] ? switch_fpu_return+0x1db/0x4b0 [ 596.009223][ T1140] ? fpregs_mark_activate+0x320/0x320 [ 596.009239][ T1140] ? trace_hardirqs_off_caller+0x55/0x230 [ 596.009263][ T1140] do_syscall_64+0xf6/0x7d0 [ 596.009282][ T1140] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 596.009292][ T1140] RIP: 0033:0x441509 [ 596.009305][ T1140] Code: Bad RIP value. [ 596.009313][ T1140] RSP: 002b:00007ffd4b838a08 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 596.009326][ T1140] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441509 [ 596.009335][ T1140] RDX: 0000000000000000 RSI: 0000000020000180 RDI: ffffffffffffff9c [ 596.009344][ T1140] RBP: 00000000006cc018 R08: 00000000004002c8 R09: 00000000004002c8 [ 596.009352][ T1140] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402280 [ 596.009361][ T1140] R13: 0000000000402310 R14: 0000000000000000 R15: 0000000000000000 [ 596.009385][ T1140] [ 596.009385][ T1140] Showing all locks held in the system: [ 596.009400][ T1140] 1 lock held by khungtaskd/1140: [ 596.009405][ T1140] #0: ffffffff899beb00 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 [ 596.009468][ T1140] 1 lock held by in:imklog/6713: [ 596.009473][ T1140] #0: ffff8880a5e48130 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 [ 596.009508][ T1140] 2 locks held by syz-executor749/7024: [ 596.009518][ T1140] 1 lock held by syz-executor749/7029: [ 596.009522][ T1140] #0: ffff8880a3484078 (&fb_info->lock){+.+.}-{3:3}, at: fb_open+0xd3/0x430 [ 596.009554][ T1140] 1 lock held by syz-executor749/7030: [ 596.009559][ T1140] #0: ffff8880a3484078 (&fb_info->lock){+.+.}-{3:3}, at: fb_open+0xd3/0x430 [ 596.009589][ T1140] 1 lock held by syz-executor749/7031: [ 596.009594][ T1140] #0: ffff8880a3484078 (&fb_info->lock){+.+.}-{3:3}, at: fb_open+0xd3/0x430 [ 596.009625][ T1140] 1 lock held by syz-executor749/7032: [ 596.009630][ T1140] #0: ffff8880a3484078 (&fb_info->lock){+.+.}-{3:3}, at: fb_open+0xd3/0x430 [ 596.009661][ T1140] 1 lock held by syz-executor749/7033: [ 596.009665][ T1140] #0: ffff8880a3484078 (&fb_info->lock){+.+.}-{3:3}, at: fb_open+0xd3/0x430 [ 596.009692][ T1140] [ 596.009697][ T1140] ============================================= [ 596.009697][ T1140] [ 596.009705][ T1140] NMI backtrace for cpu 0 [ 596.009719][ T1140] CPU: 0 PID: 1140 Comm: khungtaskd Not tainted 5.7.0-rc2-syzkaller #0 [ 596.009727][ T1140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 596.009731][ T1140] Call Trace: [ 596.009797][ T1140] dump_stack+0x188/0x20d [ 596.009816][ T1140] nmi_cpu_backtrace.cold+0x70/0xb1 [ 596.009853][ T1140] ? lapic_can_unplug_cpu.cold+0x3b/0x3b [ 596.009869][ T1140] nmi_trigger_cpumask_backtrace+0x231/0x27e [ 596.009906][ T1140] watchdog+0xa8c/0x1010 [ 596.009926][ T1140] ? reset_hung_task_detector+0x30/0x30 [ 596.009999][ T1140] kthread+0x388/0x470 [ 596.010014][ T1140] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 596.010030][ T1140] ret_from_fork+0x24/0x30 [ 596.010055][ T1140] Sending NMI from CPU 0 to CPUs 1: [ 596.011020][ C1] NMI backtrace for cpu 1 [ 596.011026][ C1] CPU: 1 PID: 7024 Comm: syz-executor749 Not tainted 5.7.0-rc2-syzkaller #0 [ 596.011031][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 596.011035][ C1] RIP: 0010:write_comp_data+0x17/0x70 [ 596.011062][ C1] Code: d0 76 07 48 89 34 d1 48 89 11 c3 0f 1f 84 00 00 00 00 00 65 4c 8b 04 25 00 1f 02 00 65 8b 05 b8 ef 8e 7e a9 00 01 1f 00 75 51 <41> 8b 80 d8 13 00 00 83 f8 03 75 45 49 8b 80 e0 13 00 00 45 8b 80 [ 596.011066][ C1] RSP: 0018:ffffc90002076f48 EFLAGS: 00000246 [ 596.011073][ C1] RAX: 0000000080000000 RBX: 0000000000000000 RCX: ffffffff83bf7134 [ 596.011077][ C1] RDX: 0000000000000020 RSI: 0000000000000007 RDI: 0000000000000005 [ 596.011080][ C1] RBP: ffff8880000a0180 R08: ffff888093ee60c0 R09: 0000000000000040 [ 596.011084][ C1] R10: ffff8880a3ad079f R11: ffffed101475a0f3 R12: 0000000000000050 [ 596.011088][ C1] R13: ffff8880000a0000 R14: 0000000000000000 R15: 0000000000000020 [ 596.011092][ C1] FS: 0000000000ace880(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 596.011096][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 596.011100][ C1] CR2: 0000000020000080 CR3: 000000009a2ec000 CR4: 00000000001406e0 [ 596.011104][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 596.011108][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 596.011110][ C1] Call Trace: [ 596.011112][ C1] bitfill_aligned+0x134/0x200 [ 596.011115][ C1] cfb_fillrect+0x418/0x7a0 [ 596.011117][ C1] ? cfb_fillrect+0x7a0/0x7a0 [ 596.011120][ C1] vga16fb_fillrect+0x68f/0x1960 [ 596.011122][ C1] ? memcpy+0x39/0x60 [ 596.011125][ C1] bit_clear_margins+0x2d5/0x4a0 [ 596.011128][ C1] ? bit_bmove+0x210/0x210 [ 596.011131][ C1] ? vesafb_probe.cold+0x1162/0x1162 [ 596.011133][ C1] fbcon_clear_margins+0x1de/0x240 [ 596.011136][ C1] fbcon_switch+0xd21/0x1740 [ 596.011139][ C1] ? fbcon_set_def_font+0x370/0x370 [ 596.011141][ C1] ? fbcon_cursor+0x477/0x650 [ 596.011144][ C1] ? bit_clear+0x4e0/0x4e0 [ 596.011146][ C1] ? is_console_locked+0x5/0x10 [ 596.011149][ C1] ? fbcon_set_origin+0x26/0x50 [ 596.011151][ C1] redraw_screen+0x2ae/0x770 [ 596.011154][ C1] ? vesafb_probe.cold+0x1162/0x1162 [ 596.011157][ C1] ? respond_string+0x290/0x290 [ 596.011160][ C1] ? fbcon_set_palette+0x3b1/0x4a0 [ 596.011162][ C1] fbcon_modechanged+0x5c3/0x790 [ 596.011165][ C1] fbcon_update_vcs+0x3a/0x50 [ 596.011167][ C1] fb_set_var+0xad0/0xd40 [ 596.011170][ C1] ? fb_blank+0x190/0x190 [ 596.011173][ C1] ? entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 596.011175][ C1] ? vga16fb_imageblit+0x69a/0x2210 [ 596.011178][ C1] ? bit_cursor+0xa62/0x1900 [ 596.011181][ C1] ? fb_videomode_to_var+0xf/0x610 [ 596.011183][ C1] fbcon_switch+0x526/0x1740 [ 596.011186][ C1] ? fbcon_set_def_font+0x370/0x370 [ 596.011189][ C1] ? fbcon_cursor+0x477/0x650 [ 596.011191][ C1] ? bit_clear+0x4e0/0x4e0 [ 596.011194][ C1] ? is_console_locked+0x5/0x10 [ 596.011196][ C1] ? fbcon_set_origin+0x26/0x50 [ 596.011199][ C1] redraw_screen+0x2ae/0x770 [ 596.011202][ C1] ? vesafb_probe.cold+0x1162/0x1162 [ 596.011204][ C1] ? respond_string+0x290/0x290 [ 596.011207][ C1] ? fbcon_set_palette+0x3b1/0x4a0 [ 596.011210][ C1] fbcon_modechanged+0x5c3/0x790 [ 596.011212][ C1] fbcon_set_all_vcs+0x3b3/0x460 [ 596.011215][ C1] fbcon_update_vcs+0x26/0x50 [ 596.011217][ C1] fb_set_var+0xad0/0xd40 [ 596.011220][ C1] ? fb_blank+0x190/0x190 [ 596.011222][ C1] ? mark_held_locks+0xe0/0xe0 [ 596.011225][ C1] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 596.011228][ C1] do_fb_ioctl+0x390/0x6e0 [ 596.011230][ C1] ? fb_mmap+0x550/0x550 [ 596.011233][ C1] ? tomoyo_execute_permission+0x470/0x470 [ 596.011236][ C1] ? trace_hardirqs_off+0x50/0x220 [ 596.011239][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 596.011242][ C1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 596.011245][ C1] ? __sanitizer_cov_trace_switch+0x45/0x70 [ 596.011248][ C1] ? do_vfs_ioctl+0x50c/0x12d0 [ 596.011251][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 596.011254][ C1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 596.011256][ C1] fb_ioctl+0xdd/0x130 [ 596.011258][ C1] ? do_fb_ioctl+0x6e0/0x6e0 [ 596.011261][ C1] ksys_ioctl+0x11a/0x180 [ 596.011263][ C1] __x64_sys_ioctl+0x6f/0xb0 [ 596.011266][ C1] ? lockdep_hardirqs_on+0x463/0x620 [ 596.011269][ C1] do_syscall_64+0xf6/0x7d0 [ 596.011272][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 596.011274][ C1] RIP: 0033:0x441509 [ 596.011282][ C1] 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 [ 596.011285][ C1] RSP: 002b:00007ffd4b838a08 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 596.011292][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441509 [ 596.011296][ C1] RDX: 0000000020000000 RSI: 0000000000004601 RDI: 0000000000000004 [ 596.011300][ C1] RBP: 00000000006cc018 R08: 00000000004002c8 R09: 00000000004002c8 [ 596.011304][ C1] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402280 [ 596.011308][ C1] R13: 0000000000402310 R14: 0000000000000000 R15: 0000000000000000 [ 596.011319][ T1140] Kernel panic - not syncing: hung_task: blocked tasks [ 596.011332][ T1140] CPU: 0 PID: 1140 Comm: khungtaskd Not tainted 5.7.0-rc2-syzkaller #0 [ 596.011341][ T1140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 596.011344][ T1140] Call Trace: [ 596.011359][ T1140] dump_stack+0x188/0x20d [ 596.011418][ T1140] panic+0x2e3/0x75c [ 596.011430][ T1140] ? add_taint.cold+0x16/0x16 [ 596.011444][ T1140] ? cpumask_next+0x3c/0x40 [ 596.011455][ T1140] ? printk_safe_flush+0xd9/0x120 [ 596.011464][ T1140] ? watchdog+0xa8c/0x1010 [ 596.011475][ T1140] ? nmi_trigger_cpumask_backtrace+0x214/0x27e [ 596.011487][ T1140] watchdog+0xa9d/0x1010 [ 596.011502][ T1140] ? reset_hung_task_detector+0x30/0x30 [ 596.011514][ T1140] kthread+0x388/0x470 [ 596.011525][ T1140] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 596.011538][ T1140] ret_from_fork+0x24/0x30 [ 596.012733][ T1140] Kernel Offset: disabled [ 598.202888][ T1140] Rebooting in 86400 seconds..