[[0;32m OK [0m] Reached target Graphical Interface.
Starting Update UTMP about System Runlevel Changes...
[[0;32m OK [0m] Started Update UTMP about System Runlevel Changes.
Starting Load/Save RF Kill Switch Status...
[[0;32m OK [0m] Started Load/Save RF Kill Switch Status.
Debian GNU/Linux 9 syzkaller ttyS0
Warning: Permanently added '10.128.1.5' (ECDSA) to the list of known hosts.
executing program
executing program
executing program
executing program
executing program
executing program
syzkaller login: [ 596.013482][ T1139] INFO: task syz-executor889:7064 blocked for more than 143 seconds.
[ 596.013503][ T1139] Not tainted 5.6.0-syzkaller #0
[ 596.013508][ T1139] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 596.013515][ T1139] syz-executor889 D28488 7064 7062 0x20020004
[ 596.013538][ T1139] Call Trace:
[ 596.013733][ T1139] ? __schedule+0x937/0x1ff0
[ 596.013756][ T1139] ? __sched_text_start+0x8/0x8
[ 596.013780][ T1139] schedule+0xd0/0x2a0
[ 596.013798][ T1139] schedule_preempt_disabled+0xf/0x20
[ 596.013810][ T1139] __mutex_lock+0x7ab/0x13c0
[ 596.013855][ T1139] ? fb_open+0xd3/0x430
[ 596.013873][ T1139] ? mutex_trylock+0x2c0/0x2c0
[ 596.013890][ T1139] ? __mutex_unlock_slowpath+0xe2/0x660
[ 596.013931][ T1139] ? chrdev_open+0xc4/0x5c0
[ 596.013974][ T1139] ? lock_downgrade+0x840/0x840
[ 596.013995][ T1139] ? fb_open+0xd3/0x430
[ 596.014006][ T1139] fb_open+0xd3/0x430
[ 596.014022][ T1139] ? get_fb_info.part.0+0x80/0x80
[ 596.014034][ T1139] chrdev_open+0x219/0x5c0
[ 596.014049][ T1139] ? cdev_put.part.0+0x50/0x50
[ 596.014125][ T1139] ? security_file_open+0x84/0x410
[ 596.014143][ T1139] do_dentry_open+0x4ba/0x1290
[ 596.014158][ T1139] ? cdev_put.part.0+0x50/0x50
[ 596.014176][ T1139] ? security_inode_permission+0xc4/0xf0
[ 596.014188][ T1139] ? chown_common+0x550/0x550
[ 596.014237][ T1139] ? inode_permission+0xab/0x500
[ 596.014258][ T1139] path_openat+0x1e59/0x27d0
[ 596.014282][ T1139] ? path_lookupat.isra.0+0x530/0x530
[ 596.014299][ T1139] ? lock_acquire+0x1f2/0x8f0
[ 596.014322][ T1139] do_filp_open+0x192/0x260
[ 596.014337][ T1139] ? may_open_dev+0xf0/0xf0
[ 596.014359][ T1139] ? do_raw_spin_lock+0x129/0x2e0
[ 596.014383][ T1139] ? _raw_spin_unlock+0x24/0x40
[ 596.014404][ T1139] ? __alloc_fd+0x46d/0x600
[ 596.014427][ T1139] do_sys_openat2+0x585/0x7d0
[ 596.014444][ T1139] ? file_open_root+0x400/0x400
[ 596.014471][ T1139] do_sys_open+0xc3/0x140
[ 596.014484][ T1139] ? filp_open+0x70/0x70
[ 596.014530][ T1139] ? fpregs_mark_activate+0x320/0x320
[ 596.014564][ T1139] ? trace_hardirqs_off_caller+0x55/0x230
[ 596.014594][ T1139] do_fast_syscall_32+0x270/0xe90
[ 596.014642][ T1139] entry_SYSENTER_compat+0x70/0x7f
[ 596.014672][ T1139] INFO: task syz-executor889:7065 blocked for more than 143 seconds.
[ 596.014680][ T1139] Not tainted 5.6.0-syzkaller #0
[ 596.014685][ T1139] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 596.014691][ T1139] syz-executor889 D28208 7065 7061 0x20020004
[ 596.014713][ T1139] Call Trace:
[ 596.014731][ T1139] ? __schedule+0x937/0x1ff0
[ 596.014752][ T1139] ? __sched_text_start+0x8/0x8
[ 596.014776][ T1139] schedule+0xd0/0x2a0
[ 596.014793][ T1139] schedule_preempt_disabled+0xf/0x20
[ 596.014804][ T1139] __mutex_lock+0x7ab/0x13c0
[ 596.014820][ T1139] ? fb_open+0xd3/0x430
[ 596.014838][ T1139] ? mutex_trylock+0x2c0/0x2c0
[ 596.014855][ T1139] ? __mutex_unlock_slowpath+0xe2/0x660
[ 596.014867][ T1139] ? chrdev_open+0xc4/0x5c0
[ 596.014886][ T1139] ? lock_downgrade+0x840/0x840
[ 596.014907][ T1139] ? fb_open+0xd3/0x430
[ 596.014918][ T1139] fb_open+0xd3/0x430
[ 596.014933][ T1139] ? get_fb_info.part.0+0x80/0x80
[ 596.014945][ T1139] chrdev_open+0x219/0x5c0
[ 596.014960][ T1139] ? cdev_put.part.0+0x50/0x50
[ 596.014977][ T1139] ? security_file_open+0x84/0x410
[ 596.014994][ T1139] do_dentry_open+0x4ba/0x1290
[ 596.015009][ T1139] ? cdev_put.part.0+0x50/0x50
[ 596.015026][ T1139] ? security_inode_permission+0xc4/0xf0
[ 596.015039][ T1139] ? chown_common+0x550/0x550
[ 596.015054][ T1139] ? inode_permission+0xab/0x500
[ 596.015080][ T1139] path_openat+0x1e59/0x27d0
[ 596.015104][ T1139] ? path_lookupat.isra.0+0x530/0x530
[ 596.015122][ T1139] ? lock_acquire+0x1f2/0x8f0
[ 596.015145][ T1139] do_filp_open+0x192/0x260
[ 596.015159][ T1139] ? may_open_dev+0xf0/0xf0
[ 596.015180][ T1139] ? do_raw_spin_lock+0x129/0x2e0
[ 596.015205][ T1139] ? _raw_spin_unlock+0x24/0x40
[ 596.015218][ T1139] ? __alloc_fd+0x46d/0x600
[ 596.015240][ T1139] do_sys_openat2+0x585/0x7d0
[ 596.015256][ T1139] ? file_open_root+0x400/0x400
[ 596.015283][ T1139] do_sys_open+0xc3/0x140
[ 596.015296][ T1139] ? filp_open+0x70/0x70
[ 596.015314][ T1139] ? fpregs_mark_activate+0x320/0x320
[ 596.015328][ T1139] ? trace_hardirqs_off_caller+0x55/0x230
[ 596.015349][ T1139] do_fast_syscall_32+0x270/0xe90
[ 596.015368][ T1139] entry_SYSENTER_compat+0x70/0x7f
[ 596.015395][ T1139] INFO: task syz-executor889:7066 blocked for more than 143 seconds.
[ 596.015402][ T1139] Not tainted 5.6.0-syzkaller #0
[ 596.015408][ T1139] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 596.015413][ T1139] syz-executor889 D28488 7066 7058 0x20020004
[ 596.015433][ T1139] Call Trace:
[ 596.015451][ T1139] ? __schedule+0x937/0x1ff0
[ 596.015473][ T1139] ? __sched_text_start+0x8/0x8
[ 596.015497][ T1139] schedule+0xd0/0x2a0
[ 596.015515][ T1139] schedule_preempt_disabled+0xf/0x20
[ 596.015526][ T1139] __mutex_lock+0x7ab/0x13c0
[ 596.015541][ T1139] ? fb_open+0xd3/0x430
[ 596.015558][ T1139] ? mutex_trylock+0x2c0/0x2c0
[ 596.015575][ T1139] ? __mutex_unlock_slowpath+0xe2/0x660
[ 596.015588][ T1139] ? chrdev_open+0xc4/0x5c0
[ 596.015606][ T1139] ? lock_downgrade+0x840/0x840
[ 596.015628][ T1139] ? fb_open+0xd3/0x430
[ 596.015639][ T1139] fb_open+0xd3/0x430
[ 596.015654][ T1139] ? get_fb_info.part.0+0x80/0x80
[ 596.015666][ T1139] chrdev_open+0x219/0x5c0
[ 596.015681][ T1139] ? cdev_put.part.0+0x50/0x50
[ 596.015697][ T1139] ? security_file_open+0x84/0x410
[ 596.015714][ T1139] do_dentry_open+0x4ba/0x1290
[ 596.015729][ T1139] ? cdev_put.part.0+0x50/0x50
[ 596.015747][ T1139] ? security_inode_permission+0xc4/0xf0
[ 596.015759][ T1139] ? chown_common+0x550/0x550
[ 596.015774][ T1139] ? inode_permission+0xab/0x500
[ 596.015795][ T1139] path_openat+0x1e59/0x27d0
[ 596.015819][ T1139] ? path_lookupat.isra.0+0x530/0x530
[ 596.015836][ T1139] ? lock_acquire+0x1f2/0x8f0
[ 596.015859][ T1139] do_filp_open+0x192/0x260
[ 596.015874][ T1139] ? may_open_dev+0xf0/0xf0
[ 596.015895][ T1139] ? do_raw_spin_lock+0x129/0x2e0
[ 596.015920][ T1139] ? _raw_spin_unlock+0x24/0x40
[ 596.015932][ T1139] ? __alloc_fd+0x46d/0x600
[ 596.015954][ T1139] do_sys_openat2+0x585/0x7d0
[ 596.015971][ T1139] ? file_open_root+0x400/0x400
[ 596.015997][ T1139] do_sys_open+0xc3/0x140
[ 596.016010][ T1139] ? filp_open+0x70/0x70
[ 596.016029][ T1139] ? fpregs_mark_activate+0x320/0x320
[ 596.016043][ T1139] ? trace_hardirqs_off_caller+0x55/0x230
[ 596.016063][ T1139] do_fast_syscall_32+0x270/0xe90
[ 596.016087][ T1139] entry_SYSENTER_compat+0x70/0x7f
[ 596.016113][ T1139] INFO: task syz-executor889:7067 blocked for more than 143 seconds.
[ 596.016121][ T1139] Not tainted 5.6.0-syzkaller #0
[ 596.016126][ T1139] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 596.016132][ T1139] syz-executor889 D28288 7067 7063 0x20020004
[ 596.016152][ T1139] Call Trace:
[ 596.016170][ T1139] ? __schedule+0x937/0x1ff0
[ 596.016191][ T1139] ? __sched_text_start+0x8/0x8
[ 596.016216][ T1139] schedule+0xd0/0x2a0
[ 596.016233][ T1139] schedule_preempt_disabled+0xf/0x20
[ 596.016244][ T1139] __mutex_lock+0x7ab/0x13c0
[ 596.016259][ T1139] ? fb_open+0xd3/0x430
[ 596.016277][ T1139] ? mutex_trylock+0x2c0/0x2c0
[ 596.016294][ T1139] ? __mutex_unlock_slowpath+0xe2/0x660
[ 596.016306][ T1139] ? chrdev_open+0xc4/0x5c0
[ 596.016325][ T1139] ? lock_downgrade+0x840/0x840
[ 596.016346][ T1139] ? fb_open+0xd3/0x430
[ 596.016357][ T1139] fb_open+0xd3/0x430
[ 596.016372][ T1139] ? get_fb_info.part.0+0x80/0x80
[ 596.016384][ T1139] chrdev_open+0x219/0x5c0
[ 596.016399][ T1139] ? cdev_put.part.0+0x50/0x50
[ 596.016416][ T1139] ? security_file_open+0x84/0x410
[ 596.016433][ T1139] do_dentry_open+0x4ba/0x1290
[ 596.016448][ T1139] ? cdev_put.part.0+0x50/0x50
[ 596.016465][ T1139] ? security_inode_permission+0xc4/0xf0
[ 596.016478][ T1139] ? chown_common+0x550/0x550
[ 596.016493][ T1139] ? inode_permission+0xab/0x500
[ 596.016513][ T1139] path_openat+0x1e59/0x27d0
[ 596.016537][ T1139] ? path_lookupat.isra.0+0x530/0x530
[ 596.016555][ T1139] ? lock_acquire+0x1f2/0x8f0
[ 596.016583][ T1139] do_filp_open+0x192/0x260
[ 596.016598][ T1139] ? may_open_dev+0xf0/0xf0
[ 596.016619][ T1139] ? do_raw_spin_lock+0x129/0x2e0
[ 596.016644][ T1139] ? _raw_spin_unlock+0x24/0x40
[ 596.016657][ T1139] ? __alloc_fd+0x46d/0x600
[ 596.016679][ T1139] do_sys_openat2+0x585/0x7d0
[ 596.016695][ T1139] ? file_open_root+0x400/0x400
[ 596.016721][ T1139] do_sys_open+0xc3/0x140
[ 596.016734][ T1139] ? filp_open+0x70/0x70
[ 596.016752][ T1139] ? fpregs_mark_activate+0x320/0x320
[ 596.016766][ T1139] ? trace_hardirqs_off_caller+0x55/0x230
[ 596.016787][ T1139] do_fast_syscall_32+0x270/0xe90
[ 596.016806][ T1139] entry_SYSENTER_compat+0x70/0x7f
[ 596.016832][ T1139] INFO: task syz-executor889:7068 blocked for more than 143 seconds.
[ 596.016840][ T1139] Not tainted 5.6.0-syzkaller #0
[ 596.016845][ T1139] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 596.016850][ T1139] syz-executor889 D27840 7068 7060 0x20024004
[ 596.016869][ T1139] Call Trace:
[ 596.016887][ T1139] ? __schedule+0x937/0x1ff0
[ 596.016908][ T1139] ? __sched_text_start+0x8/0x8
[ 596.016933][ T1139] schedule+0xd0/0x2a0
[ 596.016951][ T1139] schedule_preempt_disabled+0xf/0x20
[ 596.016962][ T1139] __mutex_lock+0x7ab/0x13c0
[ 596.016977][ T1139] ? fb_open+0xd3/0x430
[ 596.016994][ T1139] ? mutex_trylock+0x2c0/0x2c0
[ 596.017011][ T1139] ? __mutex_unlock_slowpath+0xe2/0x660
[ 596.017023][ T1139] ? chrdev_open+0xc4/0x5c0
[ 596.017042][ T1139] ? lock_downgrade+0x840/0x840
[ 596.017063][ T1139] ? fb_open+0xd3/0x430
[ 596.017156][ T1139] fb_open+0xd3/0x430
[ 596.017188][ T1139] ? get_fb_info.part.0+0x80/0x80
[ 596.017202][ T1139] chrdev_open+0x219/0x5c0
[ 596.017217][ T1139] ? cdev_put.part.0+0x50/0x50
[ 596.017234][ T1139] ? security_file_open+0x84/0x410
[ 596.017251][ T1139] do_dentry_open+0x4ba/0x1290
[ 596.017266][ T1139] ? cdev_put.part.0+0x50/0x50
[ 596.017284][ T1139] ? security_inode_permission+0xc4/0xf0
[ 596.017296][ T1139] ? chown_common+0x550/0x550
[ 596.017311][ T1139] ? inode_permission+0xab/0x500
[ 596.017332][ T1139] path_openat+0x1e59/0x27d0
[ 596.017356][ T1139] ? path_lookupat.isra.0+0x530/0x530
[ 596.017374][ T1139] ? lock_acquire+0x1f2/0x8f0
[ 596.017396][ T1139] do_filp_open+0x192/0x260
[ 596.017411][ T1139] ? may_open_dev+0xf0/0xf0
[ 596.017432][ T1139] ? do_raw_spin_lock+0x129/0x2e0
[ 596.017458][ T1139] ? _raw_spin_unlock+0x24/0x40
[ 596.017471][ T1139] ? __alloc_fd+0x46d/0x600
[ 596.017493][ T1139] do_sys_openat2+0x585/0x7d0
[ 596.017509][ T1139] ? file_open_root+0x400/0x400
[ 596.017535][ T1139] do_sys_open+0xc3/0x140
[ 596.017547][ T1139] ? filp_open+0x70/0x70
[ 596.017566][ T1139] ? fpregs_mark_activate+0x320/0x320
[ 596.017580][ T1139] ? trace_hardirqs_off_caller+0x55/0x230
[ 596.017602][ T1139] do_fast_syscall_32+0x270/0xe90
[ 596.017642][ T1139] entry_SYSENTER_compat+0x70/0x7f
[ 596.017668][ T1139]
[ 596.017668][ T1139] Showing all locks held in the system:
[ 596.017683][ T1139] 1 lock held by khungtaskd/1139:
[ 596.017689][ T1139] #0: ffffffff899bed00 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260
[ 596.017754][ T1139] 1 lock held by in:imklog/6731:
[ 596.017759][ T1139] #0: ffff88809a2210f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100
[ 596.017792][ T1139] 2 locks held by syz-executor889/7059:
[ 596.017802][ T1139] 1 lock held by syz-executor889/7064:
[ 596.017806][ T1139] #0: ffff888218c59078 (&fb_info->lock){+.+.}-{3:3}, at: fb_open+0xd3/0x430
[ 596.017837][ T1139] 1 lock held by syz-executor889/7065:
[ 596.017841][ T1139] #0: ffff888218c59078 (&fb_info->lock){+.+.}-{3:3}, at: fb_open+0xd3/0x430
[ 596.017870][ T1139] 1 lock held by syz-executor889/7066:
[ 596.017876][ T1139] #0: ffff888218c59078 (&fb_info->lock){+.+.}-{3:3}, at: fb_open+0xd3/0x430
[ 596.017905][ T1139] 1 lock held by syz-executor889/7067:
[ 596.017910][ T1139] #0: ffff888218c59078 (&fb_info->lock){+.+.}-{3:3}, at: fb_open+0xd3/0x430
[ 596.017939][ T1139] 1 lock held by syz-executor889/7068:
[ 596.017944][ T1139] #0: ffff888218c59078 (&fb_info->lock){+.+.}-{3:3}, at: fb_open+0xd3/0x430
[ 596.017969][ T1139]
[ 596.017974][ T1139] =============================================
[ 596.017974][ T1139]
[ 596.017981][ T1139] NMI backtrace for cpu 1
[ 596.017995][ T1139] CPU: 1 PID: 1139 Comm: khungtaskd Not tainted 5.6.0-syzkaller #0
[ 596.018002][ T1139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 596.018007][ T1139] Call Trace:
[ 596.018115][ T1139] dump_stack+0x188/0x20d
[ 596.018133][ T1139] nmi_cpu_backtrace.cold+0x70/0xb1
[ 596.018178][ T1139] ? lapic_can_unplug_cpu.cold+0x3b/0x3b
[ 596.018192][ T1139] nmi_trigger_cpumask_backtrace+0x231/0x27e
[ 596.018237][ T1139] watchdog+0xa8c/0x1010
[ 596.018256][ T1139] ? reset_hung_task_detector+0x30/0x30
[ 596.018324][ T1139] kthread+0x388/0x470
[ 596.018338][ T1139] ? kthread_mod_delayed_work+0x1a0/0x1a0
[ 596.018353][ T1139] ret_from_fork+0x24/0x30
[ 596.018377][ T1139] Sending NMI from CPU 1 to CPUs 0:
[ 596.019076][ C0] NMI backtrace for cpu 0
[ 596.019082][ C0] CPU: 0 PID: 7059 Comm: syz-executor889 Not tainted 5.6.0-syzkaller #0
[ 596.019088][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 596.019092][ C0] RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x4/0x20
[ 596.019102][ C0] Code: 84 00 00 00 00 00 48 8b 0c 24 0f b7 d6 0f b7 f7 bf 03 00 00 00 e9 ec fe ff ff 66 90 66 2e 0f 1f 84 00 00 00 00 00 48 8b 0c 24 <89> f2 89 fe bf 05 00 00 00 e9 ce fe ff ff 0f 1f 40 00 66 2e 0f 1f
[ 596.019105][ C0] RSP: 0018:ffffc900018573f0 EFLAGS: 00000212
[ 596.019112][ C0] RAX: ffff8880000a00f8 RBX: 0000000000000000 RCX: ffffffff83bf7764
[ 596.019117][ C0] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000007
[ 596.019122][ C0] RBP: ffff8880000a0100 R08: ffff8880a82963c0 R09: 0000000000000040
[ 596.019127][ C0] R10: ffff888218c504df R11: ffffed104318a09b R12: 0000000000000028
[ 596.019131][ C0] R13: ffff8880000a0000 R14: 0000000000000000 R15: 0000000000000008
[ 596.019136][ C0] FS: 0000000000000000(0000) GS:ffff8880ae600000(0063) knlGS:000000000a089840
[ 596.019141][ C0] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033
[ 596.019145][ C0] CR2: 000000000a0920f4 CR3: 00000000a77e5000 CR4: 00000000001406f0
[ 596.019150][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 596.019154][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 596.019157][ C0] Call Trace:
[ 596.019160][ C0] bitfill_aligned+0x134/0x200
[ 596.019163][ C0] cfb_fillrect+0x418/0x7a0
[ 596.019166][ C0] ? cfb_fillrect+0x7a0/0x7a0
[ 596.019169][ C0] vga16fb_fillrect+0x68f/0x1960
[ 596.019172][ C0] ? memcpy+0x39/0x60
[ 596.019175][ C0] bit_clear_margins+0x2d5/0x4a0
[ 596.019178][ C0] ? bit_bmove+0x210/0x210
[ 596.019182][ C0] ? vesafb_probe.cold+0x1162/0x1162
[ 596.019185][ C0] fbcon_clear_margins+0x1de/0x240
[ 596.019188][ C0] fbcon_switch+0xd21/0x1740
[ 596.019191][ C0] ? fbcon_set_def_font+0x370/0x370
[ 596.019194][ C0] ? fbcon_cursor+0x477/0x650
[ 596.019197][ C0] ? bit_clear+0x4e0/0x4e0
[ 596.019201][ C0] ? is_console_locked+0x5/0x10
[ 596.019204][ C0] ? fbcon_set_origin+0x26/0x50
[ 596.019207][ C0] redraw_screen+0x2ae/0x770
[ 596.019210][ C0] ? vesafb_probe.cold+0x1162/0x1162
[ 596.019213][ C0] ? respond_string+0x290/0x290
[ 596.019216][ C0] ? fbcon_set_palette+0x3b1/0x4a0
[ 596.019219][ C0] fbcon_modechanged+0x5c3/0x790
[ 596.019223][ C0] fbcon_update_vcs+0x3a/0x50
[ 596.019226][ C0] fb_set_var+0xad0/0xd40
[ 596.019229][ C0] ? fb_blank+0x190/0x190
[ 596.019232][ C0] ? mark_held_locks+0xe0/0xe0
[ 596.019235][ C0] ? _raw_spin_unlock_irqrestore+0x62/0xe0
[ 596.019238][ C0] do_fb_ioctl+0x390/0x6e0
[ 596.019241][ C0] ? fb_mmap+0x550/0x550
[ 596.019244][ C0] ? lock_downgrade+0x840/0x840
[ 596.019248][ C0] ? quarantine_put+0x119/0x1c0
[ 596.019251][ C0] ? kfree+0x1eb/0x2b0
[ 596.019254][ C0] ? tomoyo_path_number_perm+0x411/0x4d0
[ 596.019257][ C0] ? lockdep_hardirqs_on+0x463/0x620
[ 596.019261][ C0] ? tomoyo_path_number_perm+0x238/0x4d0
[ 596.019265][ C0] ? tomoyo_execute_permission+0x470/0x470
[ 596.019268][ C0] ? trace_hardirqs_off+0x50/0x220
[ 596.019272][ C0] ? __sanitizer_cov_trace_switch+0x45/0x70
[ 596.019275][ C0] ? do_vfs_ioctl+0x50c/0x12d0
[ 596.019278][ C0] fb_compat_ioctl+0x305/0xc50
[ 596.019281][ C0] ? fb_release+0x140/0x140
[ 596.019284][ C0] ? do_sys_open+0xc3/0x140
[ 596.019287][ C0] ? fb_release+0x140/0x140
[ 596.019290][ C0] __ia32_compat_sys_ioctl+0x23d/0x2b0
[ 596.019294][ C0] do_fast_syscall_32+0x270/0xe90
[ 596.019297][ C0] entry_SYSENTER_compat+0x70/0x7f
[ 596.019395][ T1139] Kernel panic - not syncing: hung_task: blocked tasks
[ 596.019407][ T1139] CPU: 1 PID: 1139 Comm: khungtaskd Not tainted 5.6.0-syzkaller #0
[ 596.019413][ T1139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 596.019416][ T1139] Call Trace:
[ 596.019429][ T1139] dump_stack+0x188/0x20d
[ 596.019470][ T1139] panic+0x2e3/0x75c
[ 596.019482][ T1139] ? add_taint.cold+0x16/0x16
[ 596.019496][ T1139] ? cpumask_next+0x3c/0x40
[ 596.019505][ T1139] ? printk_safe_flush+0xd9/0x120
[ 596.019514][ T1139] ? watchdog+0xa8c/0x1010
[ 596.019524][ T1139] ? nmi_trigger_cpumask_backtrace+0x214/0x27e
[ 596.019536][ T1139] watchdog+0xa9d/0x1010
[ 596.019551][ T1139] ? reset_hung_task_detector+0x30/0x30
[ 596.019562][ T1139] kthread+0x388/0x470
[ 596.019573][ T1139] ? kthread_mod_delayed_work+0x1a0/0x1a0
[ 596.019584][ T1139] ret_from_fork+0x24/0x30
[ 596.021482][ T1139] Kernel Offset: disabled
[ 597.719326][ T1139] Rebooting in 86400 seconds..