Warning: Permanently added '10.128.0.95' (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 syzkaller login: [ 445.270233][ T9272] xt_CT: You must specify a L4 protocol and not use inversions on it [ 445.272201][ T9274] xt_CT: You must specify a L4 protocol and not use inversions on it [ 445.278511][ T9275] xt_CT: You must specify a L4 protocol and not use inversions on it [ 445.286748][ T9276] xt_CT: You must specify a L4 protocol and not use inversions on it [ 445.293726][ T9277] xt_CT: You must specify a L4 protocol and not use inversions on it [ 445.305262][ T9267] xt_CT: You must specify a L4 protocol and not use inversions on it executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 445.316093][ T9278] xt_CT: You must specify a L4 protocol and not use inversions on it [ 445.330377][ T9279] xt_CT: You must specify a L4 protocol and not use inversions on it [ 445.331620][ T9280] xt_CT: You must specify a L4 protocol and not use inversions on it [ 445.352176][ T9281] xt_CT: You must specify a L4 protocol and not use inversions on it [ 593.513827][ T1111] INFO: task syz-executor383:9281 blocked for more than 143 seconds. [ 593.522210][ T1111] Not tainted 5.5.0-rc3-syzkaller #0 [ 593.529947][ T1111] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 593.538915][ T1111] syz-executor383 D28160 9281 9268 0x00004004 [ 593.551149][ T1111] Call Trace: [ 593.555003][ T1111] __schedule+0x934/0x1f90 [ 593.559431][ T1111] ? __sched_text_start+0x8/0x8 [ 593.564758][ T1111] ? __lock_acquire+0x29c9/0x4a00 [ 593.569796][ T1111] schedule+0xdc/0x2b0 [ 593.574180][ T1111] schedule_timeout+0x717/0xc50 [ 593.579069][ T1111] ? __kasan_check_read+0x11/0x20 [ 593.584431][ T1111] ? usleep_range+0x170/0x170 [ 593.589116][ T1111] ? mark_held_locks+0xa4/0xf0 [ 593.594187][ T1111] ? _raw_spin_unlock_irq+0x23/0x80 [ 593.599386][ T1111] ? wait_for_completion+0x294/0x440 [ 593.605004][ T1111] ? _raw_spin_unlock_irq+0x23/0x80 [ 593.610207][ T1111] ? lockdep_hardirqs_on+0x421/0x5e0 [ 593.615846][ T1111] ? trace_hardirqs_on+0x67/0x240 [ 593.620890][ T1111] wait_for_completion+0x29c/0x440 [ 593.626417][ T1111] ? wait_for_completion_interruptible+0x470/0x470 [ 593.633009][ T1111] ? wake_up_q+0x140/0x140 [ 593.637754][ T1111] ? lockdep_hardirqs_on+0x421/0x5e0 [ 593.643046][ T1111] ? __kasan_check_read+0x11/0x20 [ 593.648565][ T1111] __flush_work+0x4fe/0xa50 [ 593.653085][ T1111] ? queue_delayed_work_on+0x210/0x210 [ 593.659805][ T1111] ? init_pwq+0x360/0x360 [ 593.664474][ T1111] ? __cancel_work_timer+0xc4/0x540 [ 593.669675][ T1111] ? __cancel_work_timer+0x1e0/0x540 [ 593.675275][ T1111] ? cancel_delayed_work_sync+0x1b/0x20 [ 593.680823][ T1111] ? __cancel_work_timer+0x1e0/0x540 [ 593.686465][ T1111] ? lockdep_hardirqs_on+0x421/0x5e0 [ 593.691769][ T1111] ? trace_hardirqs_on+0x67/0x240 [ 593.697107][ T1111] __cancel_work_timer+0x3d9/0x540 [ 593.702220][ T1111] ? mutex_trylock+0x2d0/0x2d0 [ 593.707419][ T1111] ? mod_delayed_work_on+0x200/0x200 [ 593.712711][ T1111] ? __kasan_check_write+0x14/0x20 [ 593.718191][ T1111] ? xt_ct_tg_check_v1+0x7c/0xa0 [ 593.723131][ T1111] ? xt_ct_tg_check_v2+0xa0/0xa0 [ 593.728518][ T1111] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 593.735048][ T1111] cancel_delayed_work_sync+0x1b/0x20 [ 593.740468][ T1111] htable_put+0x15f/0x220 [ 593.745119][ T1111] ? hashlimit_mt_destroy_v2+0x70/0x70 [ 593.750584][ T1111] hashlimit_mt_destroy_v1+0x50/0x70 [ 593.756619][ T1111] cleanup_match+0xde/0x170 [ 593.761140][ T1111] ? icmp_checkentry+0xa0/0xa0 [ 593.766406][ T1111] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 593.772680][ T1111] find_check_entry.isra.0+0x454/0x920 [ 593.778477][ T1111] ? ipt_do_table+0x1b80/0x1b80 [ 593.783338][ T1111] ? lockdep_hardirqs_on+0x421/0x5e0 [ 593.789947][ T1111] ? kvfree+0x61/0x70 [ 593.794224][ T1111] translate_table+0xcb4/0x17d0 [ 593.799098][ T1111] ? compat_do_ipt_get_ctl+0x910/0x910 [ 593.804944][ T1111] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 593.811275][ T1111] ? _copy_from_user+0x12c/0x1a0 [ 593.816551][ T1111] do_ipt_set_ctl+0x2fe/0x4c2 [ 593.821236][ T1111] ? compat_do_ipt_set_ctl+0x170/0x170 [ 593.827019][ T1111] ? mutex_unlock+0xd/0x10 [ 593.831491][ T1111] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 593.837800][ T1111] nf_setsockopt+0x77/0xd0 [ 593.842291][ T1111] ip_setsockopt+0xdf/0x100 [ 593.847125][ T1111] tcp_setsockopt+0x8f/0xe0 [ 593.851668][ T1111] sock_common_setsockopt+0x94/0xd0 [ 593.857205][ T1111] __sys_setsockopt+0x261/0x4c0 [ 593.862067][ T1111] ? sock_create_kern+0x50/0x50 [ 593.867232][ T1111] ? down_read_non_owner+0x490/0x490 [ 593.872528][ T1111] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 593.879105][ T1111] ? handle_mm_fault+0x4ab/0xa50 [ 593.884356][ T1111] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 593.889822][ T1111] ? do_syscall_64+0x26/0x790 [ 593.894796][ T1111] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 593.900866][ T1111] ? do_syscall_64+0x26/0x790 [ 593.905883][ T1111] __x64_sys_setsockopt+0xbe/0x150 [ 593.911003][ T1111] do_syscall_64+0xfa/0x790 [ 593.916779][ T1111] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 593.922676][ T1111] RIP: 0033:0x441289 [ 593.926892][ T1111] Code: 67 20 66 6f 72 20 64 65 74 61 69 6c 73 2c 20 66 69 78 20 65 72 72 6f 72 73 20 61 6e 64 20 72 65 73 74 61 72 74 2e 20 41 73 20 <61> 20 6c 61 73 74 0a 72 65 73 6f 72 74 2c 20 79 6f 75 20 6d 61 79 [ 593.946848][ T1111] RSP: 002b:00007ffe0e7d3c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 593.955653][ T1111] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441289 [ 593.963920][ T1111] RDX: 0000000000000040 RSI: 0004000000000000 RDI: 0000000000000003 [ 593.971894][ T1111] RBP: 000000000006cb2d R08: 0000000000000000 R09: 00000000004002c8 [ 593.980450][ T1111] R10: 00000000200002c0 R11: 0000000000000246 R12: 0000000000402000 [ 593.988708][ T1111] R13: 0000000000402090 R14: 0000000000000000 R15: 0000000000000000 [ 593.996985][ T1111] INFO: task syz-executor383:9285 blocked for more than 143 seconds. [ 594.005286][ T1111] Not tainted 5.5.0-rc3-syzkaller #0 [ 594.011086][ T1111] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 594.020024][ T1111] syz-executor383 D28136 9285 9266 0x00000004 [ 594.026637][ T1111] Call Trace: [ 594.029935][ T1111] __schedule+0x934/0x1f90 [ 594.034652][ T1111] ? __sched_text_start+0x8/0x8 [ 594.039504][ T1111] ? lock_downgrade+0x920/0x920 [ 594.045581][ T1111] ? rwlock_bug.part.0+0x90/0x90 [ 594.050533][ T1111] schedule+0xdc/0x2b0 [ 594.054903][ T1111] schedule_preempt_disabled+0x13/0x20 [ 594.060363][ T1111] __mutex_lock+0x7ab/0x13c0 [ 594.065253][ T1111] ? hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 594.071758][ T1111] ? mutex_trylock+0x2d0/0x2d0 [ 594.076872][ T1111] ? pcpu_alloc+0x100c/0x1380 [ 594.081559][ T1111] ? mark_held_locks+0xf0/0xf0 [ 594.086709][ T1111] ? __mutex_lock+0x458/0x13c0 [ 594.092524][ T1111] mutex_lock_nested+0x16/0x20 [ 594.097582][ T1111] ? mutex_lock_nested+0x16/0x20 [ 594.102527][ T1111] hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 594.109424][ T1111] hashlimit_mt_check_v1+0x325/0x3ab [ 594.115028][ T1111] ? hashlimit_mt_check_v2+0x3b0/0x3b0 [ 594.120493][ T1111] ? lock_downgrade+0x920/0x920 [ 594.125734][ T1111] ? xt_find_match+0xa6/0x280 [ 594.130426][ T1111] ? mutex_trylock+0x2d0/0x2d0 [ 594.135520][ T1111] ? hashlimit_mt_check_v2+0x3b0/0x3b0 [ 594.140998][ T1111] xt_check_match+0x280/0x690 [ 594.145988][ T1111] ? xt_check_target+0x690/0x690 [ 594.150933][ T1111] ? pcpu_alloc_area+0x820/0x820 [ 594.156171][ T1111] ? mutex_unlock+0xd/0x10 [ 594.160591][ T1111] ? xt_find_match+0x73/0x280 [ 594.165572][ T1111] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 594.171817][ T1111] find_check_entry.isra.0+0x32f/0x920 [ 594.178521][ T1111] ? ipt_do_table+0x1b80/0x1b80 [ 594.183467][ T1111] ? lockdep_hardirqs_on+0x421/0x5e0 [ 594.189204][ T1111] ? trace_hardirqs_on+0x67/0x240 [ 594.194584][ T1111] ? kvfree+0x61/0x70 [ 594.198597][ T1111] translate_table+0xcb4/0x17d0 [ 594.203474][ T1111] ? compat_do_ipt_get_ctl+0x910/0x910 [ 594.209428][ T1111] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 594.215995][ T1111] ? _copy_from_user+0x12c/0x1a0 [ 594.220947][ T1111] do_ipt_set_ctl+0x2fe/0x4c2 [ 594.226023][ T1111] ? compat_do_ipt_set_ctl+0x170/0x170 [ 594.231508][ T1111] ? mutex_unlock+0xd/0x10 [ 594.236244][ T1111] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 594.242231][ T1111] nf_setsockopt+0x77/0xd0 [ 594.246973][ T1111] ip_setsockopt+0xdf/0x100 [ 594.251486][ T1111] tcp_setsockopt+0x8f/0xe0 [ 594.256300][ T1111] sock_common_setsockopt+0x94/0xd0 [ 594.261521][ T1111] __sys_setsockopt+0x261/0x4c0 [ 594.266707][ T1111] ? sock_create_kern+0x50/0x50 [ 594.271569][ T1111] ? down_read_non_owner+0x490/0x490 [ 594.277171][ T1111] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 594.283416][ T1111] ? handle_mm_fault+0x4ab/0xa50 [ 594.288697][ T1111] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 594.294458][ T1111] ? do_syscall_64+0x26/0x790 [ 594.299137][ T1111] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 594.306459][ T1111] ? do_syscall_64+0x26/0x790 [ 594.311323][ T1111] __x64_sys_setsockopt+0xbe/0x150 [ 594.316778][ T1111] do_syscall_64+0xfa/0x790 [ 594.321296][ T1111] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 594.327571][ T1111] RIP: 0033:0x441289 [ 594.331472][ T1111] Code: 67 20 66 6f 72 20 64 65 74 61 69 6c 73 2c 20 66 69 78 20 65 72 72 6f 72 73 20 61 6e 64 20 72 65 73 74 61 72 74 2e 20 41 73 20 <61> 20 6c 61 73 74 0a 72 65 73 6f 72 74 2c 20 79 6f 75 20 6d 61 79 [ 594.351691][ T1111] RSP: 002b:00007ffe0e7d3c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 594.360397][ T1111] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441289 [ 594.368675][ T1111] RDX: 0000000000000040 RSI: 0004000000000000 RDI: 0000000000000003 [ 594.376932][ T1111] RBP: 000000000006a758 R08: 0000000000000000 R09: 00000009004002c8 [ 594.385204][ T1111] R10: 00000000200002c0 R11: 0000000000000246 R12: 0000000000402000 [ 594.393175][ T1111] R13: 0000000000402090 R14: 0000000000000000 R15: 0000000000000000 [ 594.401650][ T1111] INFO: task syz-executor383:9286 blocked for more than 144 seconds. [ 594.409972][ T1111] Not tainted 5.5.0-rc3-syzkaller #0 [ 594.416024][ T1111] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 594.424946][ T1111] syz-executor383 D28160 9286 9265 0x00004004 [ 594.431282][ T1111] Call Trace: [ 594.435822][ T1111] __schedule+0x934/0x1f90 [ 594.440264][ T1111] ? __sched_text_start+0x8/0x8 [ 594.445434][ T1111] ? lock_downgrade+0x920/0x920 [ 594.450290][ T1111] ? rwlock_bug.part.0+0x90/0x90 [ 594.455536][ T1111] schedule+0xdc/0x2b0 [ 594.459617][ T1111] schedule_preempt_disabled+0x13/0x20 [ 594.465518][ T1111] __mutex_lock+0x7ab/0x13c0 [ 594.470132][ T1111] ? hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 594.477047][ T1111] ? mark_lock+0xc2/0x1220 [ 594.481475][ T1111] ? mutex_trylock+0x2d0/0x2d0 [ 594.486711][ T1111] ? mark_held_locks+0xa4/0xf0 [ 594.491497][ T1111] ? _raw_spin_unlock_irq+0x23/0x80 [ 594.497044][ T1111] ? finish_task_switch+0x147/0x750 [ 594.502259][ T1111] ? trace_hardirqs_on+0x67/0x240 [ 594.507628][ T1111] mutex_lock_nested+0x16/0x20 [ 594.512396][ T1111] ? mutex_lock_nested+0x16/0x20 [ 594.517691][ T1111] hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 594.524344][ T1111] hashlimit_mt_check_v1+0x325/0x3ab [ 594.529632][ T1111] ? hashlimit_mt_check_v2+0x3b0/0x3b0 [ 594.535386][ T1111] ? lock_downgrade+0x920/0x920 [ 594.540246][ T1111] ? hashlimit_mt_check_v2+0x3b0/0x3b0 [ 594.546010][ T1111] xt_check_match+0x280/0x690 [ 594.550694][ T1111] ? xt_check_target+0x690/0x690 [ 594.555995][ T1111] ? strcmp+0x3f/0xb0 [ 594.559989][ T1111] ? mutex_unlock+0xd/0x10 [ 594.565648][ T1111] ? xt_find_match+0x73/0x280 [ 594.570339][ T1111] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 594.576871][ T1111] find_check_entry.isra.0+0x32f/0x920 [ 594.582341][ T1111] ? ipt_do_table+0x1b80/0x1b80 [ 594.587505][ T1111] ? lockdep_hardirqs_on+0x421/0x5e0 [ 594.592794][ T1111] ? trace_hardirqs_on+0x67/0x240 [ 594.598319][ T1111] ? kvfree+0x61/0x70 [ 594.602350][ T1111] translate_table+0xcb4/0x17d0 [ 594.607791][ T1111] ? compat_do_ipt_get_ctl+0x910/0x910 [ 594.613264][ T1111] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 594.619845][ T1111] ? _copy_from_user+0x12c/0x1a0 [ 594.625081][ T1111] do_ipt_set_ctl+0x2fe/0x4c2 [ 594.629764][ T1111] ? compat_do_ipt_set_ctl+0x170/0x170 [ 594.635533][ T1111] ? mutex_unlock+0xd/0x10 [ 594.639954][ T1111] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 594.646249][ T1111] nf_setsockopt+0x77/0xd0 [ 594.650675][ T1111] ip_setsockopt+0xdf/0x100 [ 594.655471][ T1111] tcp_setsockopt+0x8f/0xe0 [ 594.660009][ T1111] sock_common_setsockopt+0x94/0xd0 [ 594.665524][ T1111] __sys_setsockopt+0x261/0x4c0 [ 594.670392][ T1111] ? sock_create_kern+0x50/0x50 [ 594.675587][ T1111] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 594.681141][ T1111] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 594.687864][ T1111] ? handle_mm_fault+0x4ab/0xa50 [ 594.692816][ T1111] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 594.699695][ T1111] ? do_syscall_64+0x26/0x790 [ 594.704675][ T1111] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 594.710753][ T1111] ? do_syscall_64+0x26/0x790 [ 594.715827][ T1111] __x64_sys_setsockopt+0xbe/0x150 [ 594.720980][ T1111] do_syscall_64+0xfa/0x790 [ 594.725917][ T1111] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 594.731815][ T1111] RIP: 0033:0x441289 [ 594.736025][ T1111] Code: 67 20 66 6f 72 20 64 65 74 61 69 6c 73 2c 20 66 69 78 20 65 72 72 6f 72 73 20 61 6e 64 20 72 65 73 74 61 72 74 2e 20 41 73 20 <61> 20 6c 61 73 74 0a 72 65 73 6f 72 74 2c 20 79 6f 75 20 6d 61 79 [ 594.756027][ T1111] RSP: 002b:00007ffe0e7d3c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 594.764794][ T1111] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441289 [ 594.772773][ T1111] RDX: 0000000000000040 RSI: 0004000000000000 RDI: 0000000000000003 [ 594.781123][ T1111] RBP: 000000000006cb70 R08: 0000000000000000 R09: 00000000004002c8 [ 594.789592][ T1111] R10: 00000000200002c0 R11: 0000000000000246 R12: 0000000000402000 [ 594.797981][ T1111] R13: 0000000000402090 R14: 0000000000000000 R15: 0000000000000000 [ 594.806345][ T1111] INFO: task syz-executor383:9288 blocked for more than 144 seconds. [ 594.814856][ T1111] Not tainted 5.5.0-rc3-syzkaller #0 [ 594.820663][ T1111] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 594.830616][ T1111] syz-executor383 D28160 9288 9269 0x00000004 [ 594.837278][ T1111] Call Trace: [ 594.840588][ T1111] __schedule+0x934/0x1f90 [ 594.845363][ T1111] ? __sched_text_start+0x8/0x8 [ 594.850216][ T1111] ? lock_downgrade+0x920/0x920 [ 594.855375][ T1111] ? rwlock_bug.part.0+0x90/0x90 [ 594.860338][ T1111] schedule+0xdc/0x2b0 [ 594.864762][ T1111] schedule_preempt_disabled+0x13/0x20 [ 594.870230][ T1111] __mutex_lock+0x7ab/0x13c0 [ 594.875178][ T1111] ? hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 594.881720][ T1111] ? mutex_trylock+0x2d0/0x2d0 [ 594.886933][ T1111] ? pcpu_next_md_free_region+0x176/0x350 [ 594.892663][ T1111] ? pcpu_alloc+0x100c/0x1380 [ 594.897700][ T1111] ? mark_held_locks+0xf0/0xf0 [ 594.902480][ T1111] ? __mutex_lock+0x458/0x13c0 [ 594.907621][ T1111] mutex_lock_nested+0x16/0x20 [ 594.912391][ T1111] ? mutex_lock_nested+0x16/0x20 [ 594.917746][ T1111] hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 594.924436][ T1111] hashlimit_mt_check_v1+0x325/0x3ab [ 594.929732][ T1111] ? hashlimit_mt_check_v2+0x3b0/0x3b0 [ 594.935541][ T1111] ? lock_downgrade+0x920/0x920 [ 594.940429][ T1111] ? xt_find_match+0xa6/0x280 [ 594.945464][ T1111] ? mutex_trylock+0x2d0/0x2d0 [ 594.950234][ T1111] ? hashlimit_mt_check_v2+0x3b0/0x3b0 [ 594.957036][ T1111] xt_check_match+0x280/0x690 [ 594.961777][ T1111] ? xt_check_target+0x690/0x690 [ 594.967082][ T1111] ? pcpu_alloc_area+0x820/0x820 [ 594.972035][ T1111] ? mutex_unlock+0xd/0x10 [ 594.976788][ T1111] ? xt_find_match+0x73/0x280 [ 594.981480][ T1111] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 594.988114][ T1111] find_check_entry.isra.0+0x32f/0x920 [ 594.993591][ T1111] ? ipt_do_table+0x1b80/0x1b80 [ 594.998789][ T1111] ? lockdep_hardirqs_on+0x421/0x5e0 [ 595.004370][ T1111] ? trace_hardirqs_on+0x67/0x240 [ 595.009402][ T1111] ? kvfree+0x61/0x70 [ 595.013396][ T1111] translate_table+0xcb4/0x17d0 [ 595.018649][ T1111] ? compat_do_ipt_get_ctl+0x910/0x910 [ 595.024583][ T1111] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 595.030835][ T1111] ? _copy_from_user+0x12c/0x1a0 [ 595.036103][ T1111] do_ipt_set_ctl+0x2fe/0x4c2 [ 595.040789][ T1111] ? compat_do_ipt_set_ctl+0x170/0x170 [ 595.046571][ T1111] ? mutex_unlock+0xd/0x10 [ 595.050990][ T1111] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 595.057289][ T1111] nf_setsockopt+0x77/0xd0 [ 595.061718][ T1111] ip_setsockopt+0xdf/0x100 [ 595.066527][ T1111] tcp_setsockopt+0x8f/0xe0 [ 595.071042][ T1111] sock_common_setsockopt+0x94/0xd0 [ 595.076567][ T1111] __sys_setsockopt+0x261/0x4c0 [ 595.081440][ T1111] ? sock_create_kern+0x50/0x50 [ 595.087532][ T1111] ? down_read_non_owner+0x490/0x490 [ 595.092831][ T1111] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 595.099567][ T1111] ? handle_mm_fault+0x4ab/0xa50 [ 595.104795][ T1111] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 595.110258][ T1111] ? do_syscall_64+0x26/0x790 [ 595.115266][ T1111] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 595.121334][ T1111] ? do_syscall_64+0x26/0x790 [ 595.126398][ T1111] __x64_sys_setsockopt+0xbe/0x150 [ 595.131518][ T1111] do_syscall_64+0xfa/0x790 [ 595.136341][ T1111] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 595.142234][ T1111] RIP: 0033:0x441289 [ 595.146426][ T1111] Code: 67 20 66 6f 72 20 64 65 74 61 69 6c 73 2c 20 66 69 78 20 65 72 72 6f 72 73 20 61 6e 64 20 72 65 73 74 61 72 74 2e 20 41 73 20 <61> 20 6c 61 73 74 0a 72 65 73 6f 72 74 2c 20 79 6f 75 20 6d 61 79 [ 595.166364][ T1111] RSP: 002b:00007ffe0e7d3c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 595.175069][ T1111] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441289 [ 595.183042][ T1111] RDX: 0000000000000040 RSI: 0004000000000000 RDI: 0000000000000003 [ 595.191338][ T1111] RBP: 000000000006cb66 R08: 0000000000000000 R09: 00000000004002c8 [ 595.199599][ T1111] R10: 00000000200002c0 R11: 0000000000000246 R12: 0000000000402000 [ 595.207945][ T1111] R13: 0000000000402090 R14: 0000000000000000 R15: 0000000000000000 [ 595.217182][ T1111] INFO: task syz-executor383:9289 blocked for more than 145 seconds. [ 595.225500][ T1111] Not tainted 5.5.0-rc3-syzkaller #0 [ 595.231299][ T1111] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 595.240481][ T1111] syz-executor383 D27792 9289 9271 0x00000004 [ 595.247124][ T1111] Call Trace: [ 595.250425][ T1111] __schedule+0x934/0x1f90 [ 595.255145][ T1111] ? __sched_text_start+0x8/0x8 [ 595.260010][ T1111] ? lock_downgrade+0x920/0x920 [ 595.265218][ T1111] ? rwlock_bug.part.0+0x90/0x90 [ 595.270171][ T1111] schedule+0xdc/0x2b0 [ 595.274713][ T1111] schedule_preempt_disabled+0x13/0x20 [ 595.280213][ T1111] __mutex_lock+0x7ab/0x13c0 [ 595.285191][ T1111] ? hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 595.291786][ T1111] ? mutex_trylock+0x2d0/0x2d0 [ 595.296854][ T1111] ? pcpu_next_md_free_region+0x176/0x350 [ 595.302596][ T1111] ? pcpu_alloc+0x100c/0x1380 [ 595.307605][ T1111] ? mark_held_locks+0xf0/0xf0 [ 595.312376][ T1111] ? __mutex_lock+0x458/0x13c0 [ 595.317469][ T1111] mutex_lock_nested+0x16/0x20 [ 595.322233][ T1111] ? mutex_lock_nested+0x16/0x20 [ 595.327490][ T1111] hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 595.334106][ T1111] hashlimit_mt_check_v1+0x325/0x3ab [ 595.339393][ T1111] ? hashlimit_mt_check_v2+0x3b0/0x3b0 [ 595.346087][ T1111] ? lock_downgrade+0x920/0x920 [ 595.350946][ T1111] ? xt_find_match+0xa6/0x280 [ 595.355931][ T1111] ? mutex_trylock+0x2d0/0x2d0 [ 595.360700][ T1111] ? hashlimit_mt_check_v2+0x3b0/0x3b0 [ 595.366470][ T1111] xt_check_match+0x280/0x690 [ 595.371152][ T1111] ? xt_check_target+0x690/0x690 [ 595.376396][ T1111] ? pcpu_alloc_area+0x820/0x820 [ 595.381339][ T1111] ? mutex_unlock+0xd/0x10 [ 595.386053][ T1111] ? xt_find_match+0x73/0x280 [ 595.390740][ T1111] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 595.397390][ T1111] find_check_entry.isra.0+0x32f/0x920 [ 595.402862][ T1111] ? ipt_do_table+0x1b80/0x1b80 [ 595.408028][ T1111] ? lockdep_hardirqs_on+0x421/0x5e0 [ 595.413320][ T1111] ? trace_hardirqs_on+0x67/0x240 [ 595.418653][ T1111] ? kvfree+0x61/0x70 [ 595.422648][ T1111] translate_table+0xcb4/0x17d0 [ 595.427815][ T1111] ? compat_do_ipt_get_ctl+0x910/0x910 [ 595.433281][ T1111] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 595.439821][ T1111] ? _copy_from_user+0x12c/0x1a0 [ 595.445207][ T1111] do_ipt_set_ctl+0x2fe/0x4c2 [ 595.449887][ T1111] ? compat_do_ipt_set_ctl+0x170/0x170 [ 595.456744][ T1111] ? mutex_unlock+0xd/0x10 [ 595.461170][ T1111] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 595.467452][ T1111] nf_setsockopt+0x77/0xd0 [ 595.472158][ T1111] ip_setsockopt+0xdf/0x100 [ 595.477956][ T1111] tcp_setsockopt+0x8f/0xe0 [ 595.482488][ T1111] sock_common_setsockopt+0x94/0xd0 [ 595.488056][ T1111] __sys_setsockopt+0x261/0x4c0 [ 595.492917][ T1111] ? sock_create_kern+0x50/0x50 [ 595.498112][ T1111] ? down_read_non_owner+0x490/0x490 [ 595.503403][ T1111] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 595.509965][ T1111] ? handle_mm_fault+0x4ab/0xa50 [ 595.515208][ T1111] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 595.520670][ T1111] ? do_syscall_64+0x26/0x790 [ 595.525644][ T1111] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 595.531710][ T1111] ? do_syscall_64+0x26/0x790 [ 595.536700][ T1111] __x64_sys_setsockopt+0xbe/0x150 [ 595.541819][ T1111] do_syscall_64+0xfa/0x790 [ 595.546737][ T1111] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 595.552645][ T1111] RIP: 0033:0x441289 [ 595.556905][ T1111] Code: 67 20 66 6f 72 20 64 65 74 61 69 6c 73 2c 20 66 69 78 20 65 72 72 6f 72 73 20 61 6e 64 20 72 65 73 74 61 72 74 2e 20 41 73 20 <61> 20 6c 61 73 74 0a 72 65 73 6f 72 74 2c 20 79 6f 75 20 6d 61 79 [ 595.576860][ T1111] RSP: 002b:00007ffe0e7d3c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 595.585573][ T1111] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441289 [ 595.593546][ T1111] RDX: 0000000000000040 RSI: 0004000000000000 RDI: 0000000000000003 [ 595.601832][ T1111] RBP: 000000000006cb4e R08: 0000000000000000 R09: 00000000004002c8 [ 595.611019][ T1111] R10: 00000000200002c0 R11: 0000000000000246 R12: 0000000000402000 [ 595.619284][ T1111] R13: 0000000000402090 R14: 0000000000000000 R15: 0000000000000000 [ 595.627556][ T1111] INFO: task syz-executor383:9290 blocked for more than 145 seconds. [ 595.635875][ T1111] Not tainted 5.5.0-rc3-syzkaller #0 [ 595.641673][ T1111] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 595.650885][ T1111] syz-executor383 D27792 9290 9270 0x00004004 [ 595.658253][ T1111] Call Trace: [ 595.661567][ T1111] __schedule+0x934/0x1f90 [ 595.666295][ T1111] ? __sched_text_start+0x8/0x8 [ 595.671152][ T1111] ? lock_downgrade+0x920/0x920 [ 595.676385][ T1111] ? rwlock_bug.part.0+0x90/0x90 [ 595.681337][ T1111] schedule+0xdc/0x2b0 [ 595.685736][ T1111] schedule_preempt_disabled+0x13/0x20 [ 595.691197][ T1111] __mutex_lock+0x7ab/0x13c0 [ 595.696096][ T1111] ? hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 595.702602][ T1111] ? mutex_trylock+0x2d0/0x2d0 [ 595.707664][ T1111] ? pcpu_next_md_free_region+0x176/0x350 [ 595.713388][ T1111] ? pcpu_alloc+0x100c/0x1380 [ 595.718466][ T1111] ? mark_held_locks+0xf0/0xf0 [ 595.723231][ T1111] ? __mutex_lock+0x458/0x13c0 [ 595.728291][ T1111] mutex_lock_nested+0x16/0x20 [ 595.733056][ T1111] ? mutex_lock_nested+0x16/0x20 [ 595.739287][ T1111] hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 595.745901][ T1111] hashlimit_mt_check_v1+0x325/0x3ab [ 595.751188][ T1111] ? hashlimit_mt_check_v2+0x3b0/0x3b0 [ 595.757391][ T1111] ? lock_downgrade+0x920/0x920 [ 595.762254][ T1111] ? xt_find_match+0xa6/0x280 [ 595.767230][ T1111] ? mutex_trylock+0x2d0/0x2d0 [ 595.772003][ T1111] ? hashlimit_mt_check_v2+0x3b0/0x3b0 [ 595.777771][ T1111] xt_check_match+0x280/0x690 [ 595.782459][ T1111] ? xt_check_target+0x690/0x690 [ 595.787700][ T1111] ? pcpu_alloc_area+0x820/0x820 [ 595.792643][ T1111] ? mutex_unlock+0xd/0x10 [ 595.797351][ T1111] ? xt_find_match+0x73/0x280 [ 595.802035][ T1111] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 595.808575][ T1111] find_check_entry.isra.0+0x32f/0x920 [ 595.814331][ T1111] ? ipt_do_table+0x1b80/0x1b80 [ 595.819190][ T1111] ? lockdep_hardirqs_on+0x421/0x5e0 [ 595.824767][ T1111] ? trace_hardirqs_on+0x67/0x240 [ 595.829797][ T1111] ? kvfree+0x61/0x70 [ 595.834083][ T1111] translate_table+0xcb4/0x17d0 [ 595.838951][ T1111] ? compat_do_ipt_get_ctl+0x910/0x910 [ 595.844706][ T1111] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 595.850947][ T1111] ? _copy_from_user+0x12c/0x1a0 [ 595.856172][ T1111] do_ipt_set_ctl+0x2fe/0x4c2 [ 595.860856][ T1111] ? compat_do_ipt_set_ctl+0x170/0x170 [ 595.867677][ T1111] ? mutex_unlock+0xd/0x10 [ 595.872098][ T1111] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 595.878371][ T1111] nf_setsockopt+0x77/0xd0 [ 595.882803][ T1111] ip_setsockopt+0xdf/0x100 [ 595.887602][ T1111] tcp_setsockopt+0x8f/0xe0 [ 595.892109][ T1111] sock_common_setsockopt+0x94/0xd0 [ 595.897608][ T1111] __sys_setsockopt+0x261/0x4c0 [ 595.902463][ T1111] ? sock_create_kern+0x50/0x50 [ 595.907621][ T1111] ? down_read_non_owner+0x490/0x490 [ 595.912911][ T1111] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 595.919546][ T1111] ? handle_mm_fault+0x4ab/0xa50 [ 595.924768][ T1111] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 595.930226][ T1111] ? do_syscall_64+0x26/0x790 [ 595.935192][ T1111] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 595.941272][ T1111] ? do_syscall_64+0x26/0x790 [ 595.946243][ T1111] __x64_sys_setsockopt+0xbe/0x150 [ 595.951361][ T1111] do_syscall_64+0xfa/0x790 [ 595.956278][ T1111] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 595.962167][ T1111] RIP: 0033:0x441289 [ 595.966347][ T1111] Code: 67 20 66 6f 72 20 64 65 74 61 69 6c 73 2c 20 66 69 78 20 65 72 72 6f 72 73 20 61 6e 64 20 72 65 73 74 61 72 74 2e 20 41 73 20 <61> 20 6c 61 73 74 0a 72 65 73 6f 72 74 2c 20 79 6f 75 20 6d 61 79 [ 595.986319][ T1111] RSP: 002b:00007ffe0e7d3c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 595.995939][ T1111] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441289 [ 596.004180][ T1111] RDX: 0000000000000040 RSI: 0004000000000000 RDI: 0000000000000003 [ 596.012148][ T1111] RBP: 000000000006cb7c R08: 0000000000000000 R09: 00000000004002c8 [ 596.020427][ T1111] R10: 00000000200002c0 R11: 0000000000000246 R12: 0000000000402000 [ 596.028679][ T1111] R13: 0000000000402090 R14: 0000000000000000 R15: 0000000000000000 [ 596.036944][ T1111] [ 596.036944][ T1111] Showing all locks held in the system: [ 596.044939][ T1111] 1 lock held by khungtaskd/1111: [ 596.049957][ T1111] #0: ffffffff899a5680 (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x279 [ 596.059568][ T1111] 2 locks held by kworker/0:2/2661: [ 596.065052][ T1111] 1 lock held by rsyslogd/9149: [ 596.069896][ T1111] #0: ffff8880a2974920 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 [ 596.079010][ T1111] 2 locks held by getty/9239: [ 596.083950][ T1111] #0: ffff8880a889c090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 596.092897][ T1111] #1: ffffc9000172b2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 596.102861][ T1111] 2 locks held by getty/9240: [ 596.107808][ T1111] #0: ffff8880957c9090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 596.117042][ T1111] #1: ffffc900017032e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 596.127812][ T1111] 2 locks held by getty/9241: [ 596.132478][ T1111] #0: ffff88809d28a090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 596.141730][ T1111] #1: ffffc9000175b2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 596.151571][ T1111] 2 locks held by getty/9242: [ 596.156518][ T1111] #0: ffff8880995df090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 596.165752][ T1111] #1: ffffc9000174b2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 596.175591][ T1111] 2 locks held by getty/9243: [ 596.180259][ T1111] #0: ffff88809f877090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 596.189665][ T1111] #1: ffffc900016ff2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 596.199516][ T1111] 2 locks held by getty/9244: [ 596.204446][ T1111] #0: ffff888096816090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 596.213396][ T1111] #1: ffffc900016cb2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 596.223339][ T1111] 2 locks held by getty/9245: [ 596.228278][ T1111] #0: ffff888214877090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 596.237504][ T1111] #1: ffffc900011402e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 596.247349][ T1111] 1 lock held by syz-executor383/9281: [ 596.252797][ T1111] #0: ffffffff8a5393e0 (hashlimit_mutex){+.+.}, at: htable_put+0x21/0x220 [ 596.262713][ T1111] 1 lock held by syz-executor383/9285: [ 596.268434][ T1111] #0: ffffffff8a5393e0 (hashlimit_mutex){+.+.}, at: hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 596.279406][ T1111] 1 lock held by syz-executor383/9286: [ 596.285281][ T1111] #0: ffffffff8a5393e0 (hashlimit_mutex){+.+.}, at: hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 596.296257][ T1111] 1 lock held by syz-executor383/9288: [ 596.301709][ T1111] #0: ffffffff8a5393e0 (hashlimit_mutex){+.+.}, at: hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 596.312710][ T1111] 1 lock held by syz-executor383/9289: [ 596.318436][ T1111] #0: ffffffff8a5393e0 (hashlimit_mutex){+.+.}, at: hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 596.329501][ T1111] 1 lock held by syz-executor383/9290: [ 596.335320][ T1111] #0: ffffffff8a5393e0 (hashlimit_mutex){+.+.}, at: hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 596.346336][ T1111] [ 596.348668][ T1111] ============================================= [ 596.348668][ T1111] [ 596.357412][ T1111] NMI backtrace for cpu 1 [ 596.361751][ T1111] CPU: 1 PID: 1111 Comm: khungtaskd Not tainted 5.5.0-rc3-syzkaller #0 [ 596.369982][ T1111] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 596.380031][ T1111] Call Trace: [ 596.383393][ T1111] dump_stack+0x197/0x210 [ 596.387731][ T1111] nmi_cpu_backtrace.cold+0x70/0xb2 [ 596.392958][ T1111] ? vprintk_func+0x86/0x189 [ 596.397604][ T1111] ? lapic_can_unplug_cpu.cold+0x3a/0x3a [ 596.403237][ T1111] nmi_trigger_cpumask_backtrace+0x23b/0x28b [ 596.409220][ T1111] arch_trigger_cpumask_backtrace+0x14/0x20 [ 596.415111][ T1111] watchdog+0xb11/0x10c0 [ 596.419362][ T1111] kthread+0x361/0x430 [ 596.423432][ T1111] ? reset_hung_task_detector+0x30/0x30 [ 596.428977][ T1111] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 596.434702][ T1111] ret_from_fork+0x24/0x30 [ 596.439234][ T1111] Sending NMI from CPU 1 to CPUs 0: [ 596.444729][ C0] NMI backtrace for cpu 0 [ 596.444736][ C0] CPU: 0 PID: 2661 Comm: kworker/0:2 Not tainted 5.5.0-rc3-syzkaller #0 [ 596.444742][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 596.444746][ C0] Workqueue: events_power_efficient htable_gc [ 596.444752][ C0] RIP: 0010:___might_sleep+0x81/0x2c0 [ 596.444763][ C0] Code: 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 65 44 8b 35 9a 51 b1 7e 41 81 e6 ff ff ff 7f 84 c0 74 08 3c 03 0f 8e ed 01 00 00 <45> 03 b7 78 03 00 00 44 39 f3 0f 84 cd 00 00 00 48 c7 c0 84 62 79 [ 596.444767][ C0] RSP: 0000:ffffc9000797fc70 EFLAGS: 00000246 [ 596.444774][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8880a0ad8b18 [ 596.444780][ C0] RDX: 1ffff1101415b0bf RSI: ffffffff899a5600 RDI: ffff8880a0ad85f8 [ 596.444785][ C0] RBP: ffffc9000797fc98 R08: 1ffffffff1659bc1 R09: fffffbfff1659bc2 [ 596.444790][ C0] R10: fffffbfff1659bc1 R11: ffffffff8b2cde0f R12: ffffffff88dc7a20 [ 596.444795][ C0] R13: 0000000000000184 R14: 0000000000000000 R15: ffff8880a0ad8280 [ 596.444800][ C0] FS: 0000000000000000(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 596.444805][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 596.444810][ C0] CR2: 00000000200002c0 CR3: 0000000094e28000 CR4: 00000000001406f0 [ 596.444815][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 596.444819][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 596.444822][ C0] Call Trace: [ 596.444826][ C0] htable_selective_cleanup+0x22c/0x330 [ 596.444830][ C0] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 596.444833][ C0] ? select_all+0x10/0x10 [ 596.444836][ C0] htable_gc+0x26/0xc0 [ 596.444839][ C0] process_one_work+0x9af/0x1740 [ 596.444843][ C0] ? pwq_dec_nr_in_flight+0x320/0x320 [ 596.444846][ C0] ? lock_acquire+0x190/0x410 [ 596.444849][ C0] worker_thread+0x98/0xe40 [ 596.444853][ C0] ? trace_hardirqs_on+0x67/0x240 [ 596.444856][ C0] kthread+0x361/0x430 [ 596.444859][ C0] ? process_one_work+0x1740/0x1740 [ 596.444863][ C0] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 596.444866][ C0] ret_from_fork+0x24/0x30 [ 596.447781][ T1111] Kernel panic - not syncing: hung_task: blocked tasks [ 596.657513][ T1111] CPU: 1 PID: 1111 Comm: khungtaskd Not tainted 5.5.0-rc3-syzkaller #0 [ 596.665742][ T1111] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 596.675788][ T1111] Call Trace: [ 596.679081][ T1111] dump_stack+0x197/0x210 [ 596.683474][ T1111] panic+0x2e3/0x75c [ 596.687368][ T1111] ? add_taint.cold+0x16/0x16 [ 596.692046][ T1111] ? lapic_can_unplug_cpu.cold+0x3a/0x3a [ 596.697679][ T1111] ? ___preempt_schedule+0x16/0x18 [ 596.702789][ T1111] ? nmi_trigger_cpumask_backtrace+0x21b/0x28b [ 596.708936][ T1111] ? nmi_trigger_cpumask_backtrace+0x24c/0x28b [ 596.715087][ T1111] ? nmi_trigger_cpumask_backtrace+0x256/0x28b [ 596.721236][ T1111] ? nmi_trigger_cpumask_backtrace+0x21b/0x28b [ 596.727476][ T1111] watchdog+0xb22/0x10c0 [ 596.731722][ T1111] kthread+0x361/0x430 [ 596.735792][ T1111] ? reset_hung_task_detector+0x30/0x30 [ 596.741338][ T1111] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 596.747054][ T1111] ret_from_fork+0x24/0x30 [ 596.752920][ T1111] Kernel Offset: disabled [ 596.757248][ T1111] Rebooting in 86400 seconds..