[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 70.461032][ T27] audit: type=1800 audit(1581419177.608:25): pid=9588 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 70.494851][ T27] audit: type=1800 audit(1581419177.608:26): pid=9588 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 70.534830][ T27] audit: type=1800 audit(1581419177.608:27): pid=9588 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.12' (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 syzkaller login: [ 793.977173][ T9754] Cannot find add_set index 0 as target [ 793.979328][ T9750] Cannot find add_set index 0 as target [ 793.984243][ T9745] Cannot find add_set index 0 as target [ 793.988688][ T9752] Cannot find add_set index 0 as target [ 794.000203][ T9753] Cannot find add_set index 0 as target [ 946.094923][ T1132] INFO: task syz-executor071:9752 blocked for more than 143 seconds. [ 946.103205][ T1132] Not tainted 5.6.0-rc1-syzkaller #0 [ 946.109968][ T1132] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 946.118882][ T1132] syz-executor071 D27376 9752 9746 0x00004004 [ 946.125443][ T1132] Call Trace: [ 946.128865][ T1132] __schedule+0x934/0x1f90 [ 946.133314][ T1132] ? __sched_text_start+0x8/0x8 [ 946.138518][ T1132] ? __lock_acquire+0x29c9/0x4a00 [ 946.143694][ T1132] schedule+0xdc/0x2b0 [ 946.148082][ T1132] schedule_timeout+0x717/0xc50 [ 946.153051][ T1132] ? __kasan_check_read+0x11/0x20 [ 946.158359][ T1132] ? usleep_range+0x170/0x170 [ 946.163059][ T1132] ? mark_held_locks+0xa4/0xf0 [ 946.169011][ T1132] ? _raw_spin_unlock_irq+0x23/0x80 [ 946.174251][ T1132] ? wait_for_completion+0x294/0x440 [ 946.179829][ T1132] ? _raw_spin_unlock_irq+0x23/0x80 [ 946.185231][ T1132] ? lockdep_hardirqs_on+0x421/0x5e0 [ 946.190720][ T1132] ? trace_hardirqs_on+0x67/0x240 [ 946.196053][ T1132] wait_for_completion+0x29c/0x440 [ 946.201201][ T1132] ? wait_for_completion_interruptible+0x470/0x470 [ 946.207972][ T1132] ? wake_up_q+0x140/0x140 [ 946.212498][ T1132] ? __rcu_read_unlock+0x26e/0x700 [ 946.217918][ T1132] __flush_work+0x4fe/0xa50 [ 946.222446][ T1132] ? mark_held_locks+0xf0/0xf0 [ 946.227455][ T1132] ? queue_delayed_work_on+0x210/0x210 [ 946.232937][ T1132] ? init_pwq+0x360/0x360 [ 946.237528][ T1132] ? __cancel_work_timer+0xc4/0x540 [ 946.242877][ T1132] ? __cancel_work_timer+0x1e0/0x540 [ 946.248402][ T1132] ? cancel_delayed_work_sync+0x1b/0x20 [ 946.253961][ T1132] ? __cancel_work_timer+0x1e0/0x540 [ 946.259522][ T1132] ? lockdep_hardirqs_on+0x421/0x5e0 [ 946.264984][ T1132] ? trace_hardirqs_on+0x67/0x240 [ 946.270039][ T1132] __cancel_work_timer+0x3d9/0x540 [ 946.275403][ T1132] ? mod_delayed_work_on+0x200/0x200 [ 946.280812][ T1132] ? set_target_v0_checkentry+0x201/0x4f0 [ 946.286784][ T1132] ? set_target_v0_checkentry+0x188/0x4f0 [ 946.292519][ T1132] ? set_target_v1_checkentry+0x4d0/0x4d0 [ 946.299628][ T1132] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 946.306084][ T1132] cancel_delayed_work_sync+0x1b/0x20 [ 946.311553][ T1132] htable_put+0x15f/0x220 [ 946.316132][ T1132] ? htable_put+0x220/0x220 [ 946.320661][ T1132] hashlimit_mt_destroy+0x56/0x70 [ 946.326007][ T1132] cleanup_match+0xde/0x170 [ 946.330553][ T1132] ? icmp_checkentry+0xa0/0xa0 [ 946.335637][ T1132] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 946.341921][ T1132] find_check_entry.isra.0+0x454/0x920 [ 946.347723][ T1132] ? ipt_do_table+0x1b80/0x1b80 [ 946.352631][ T1132] ? lockdep_hardirqs_on+0x421/0x5e0 [ 946.358272][ T1132] ? kvfree+0x4a/0x60 [ 946.362300][ T1132] translate_table+0xcb4/0x17d0 [ 946.367487][ T1132] ? compat_do_ipt_get_ctl+0x910/0x910 [ 946.372980][ T1132] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 946.379553][ T1132] ? _copy_from_user+0x12c/0x1a0 [ 946.384541][ T1132] do_ipt_set_ctl+0x2fe/0x4c2 [ 946.389497][ T1132] ? compat_do_ipt_set_ctl+0x170/0x170 [ 946.395230][ T1132] ? mutex_unlock+0xd/0x10 [ 946.399743][ T1132] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 946.406087][ T1132] nf_setsockopt+0x77/0xd0 [ 946.410568][ T1132] ip_setsockopt+0xdf/0x100 [ 946.415386][ T1132] udp_setsockopt+0x68/0xb0 [ 946.420949][ T1132] sock_common_setsockopt+0x94/0xd0 [ 946.427353][ T1132] __sys_setsockopt+0x261/0x4c0 [ 946.432233][ T1132] ? sock_create_kern+0x50/0x50 [ 946.437454][ T1132] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 946.443114][ T1132] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 946.448861][ T1132] ? do_syscall_64+0x26/0x790 [ 946.453564][ T1132] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 946.459875][ T1132] ? do_syscall_64+0x26/0x790 [ 946.464587][ T1132] __x64_sys_setsockopt+0xbe/0x150 [ 946.469946][ T1132] do_syscall_64+0xfa/0x790 [ 946.474483][ T1132] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 946.480632][ T1132] RIP: 0033:0x441c69 [ 946.484543][ T1132] Code: 64 0a 00 00 00 00 00 00 00 72 73 79 73 6c 6f 67 64 3a 20 76 65 72 73 69 6f 6e 20 25 73 2c 20 63 6f 6e 66 69 67 20 76 61 6c 69 <64> 61 74 69 6f 6e 20 72 75 6e 20 28 6c 65 76 65 6c 20 25 64 29 2c [ 946.504469][ T1132] RSP: 002b:00007ffd4495bb08 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 946.513153][ T1132] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441c69 [ 946.521347][ T1132] RDX: 0000000000000040 RSI: ffffff0f00000000 RDI: 0000000000000003 [ 946.529747][ T1132] RBP: 00000000006cc018 R08: 0000000000000418 R09: 00000000004002c8 [ 946.538818][ T1132] R10: 0000000020000380 R11: 0000000000000246 R12: 00000000004029e0 [ 946.547819][ T1132] R13: 0000000000402a70 R14: 0000000000000000 R15: 0000000000000000 [ 946.556985][ T1132] INFO: task syz-executor071:9755 blocked for more than 143 seconds. [ 946.565788][ T1132] Not tainted 5.6.0-rc1-syzkaller #0 [ 946.571603][ T1132] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 946.580546][ T1132] syz-executor071 D28072 9755 9747 0x00000004 [ 946.587210][ T1132] Call Trace: [ 946.590817][ T1132] __schedule+0x934/0x1f90 [ 946.595536][ T1132] ? __sched_text_start+0x8/0x8 [ 946.600576][ T1132] ? lock_downgrade+0x920/0x920 [ 946.605860][ T1132] ? rwlock_bug.part.0+0x90/0x90 [ 946.611112][ T1132] schedule+0xdc/0x2b0 [ 946.615441][ T1132] schedule_preempt_disabled+0x13/0x20 [ 946.621093][ T1132] __mutex_lock+0x7ab/0x13c0 [ 946.625913][ T1132] ? hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 946.632472][ T1132] ? mutex_trylock+0x2d0/0x2d0 [ 946.637482][ T1132] ? mark_lock+0xc2/0x1220 [ 946.642071][ T1132] ? find_held_lock+0x35/0x130 [ 946.647330][ T1132] ? xt_find_match+0x1e8/0x280 [ 946.652265][ T1132] mutex_lock_nested+0x16/0x20 [ 946.657283][ T1132] ? mutex_lock_nested+0x16/0x20 [ 946.662335][ T1132] hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 946.668931][ T1132] hashlimit_mt_check+0xa4/0xd0 [ 946.673799][ T1132] ? hashlimit_mt_check_common.isra.0+0x1500/0x1500 [ 946.680628][ T1132] xt_check_match+0x280/0x690 [ 946.686526][ T1132] ? xt_check_target+0x690/0x690 [ 946.691526][ T1132] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 946.698170][ T1132] ? mutex_unlock+0xd/0x10 [ 946.702607][ T1132] ? xt_find_match+0x73/0x280 [ 946.707557][ T1132] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 946.713823][ T1132] find_check_entry.isra.0+0x32f/0x920 [ 946.719691][ T1132] ? ipt_do_table+0x1b80/0x1b80 [ 946.724570][ T1132] ? lockdep_hardirqs_on+0x421/0x5e0 [ 946.730047][ T1132] ? trace_hardirqs_on+0x67/0x240 [ 946.735403][ T1132] ? kvfree+0x4a/0x60 [ 946.739621][ T1132] translate_table+0xcb4/0x17d0 [ 946.745808][ T1132] ? compat_do_ipt_get_ctl+0x910/0x910 [ 946.751662][ T1132] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 946.758230][ T1132] ? _copy_from_user+0x12c/0x1a0 [ 946.763292][ T1132] do_ipt_set_ctl+0x2fe/0x4c2 [ 946.768401][ T1132] ? compat_do_ipt_set_ctl+0x170/0x170 [ 946.775109][ T1132] ? mutex_unlock+0xd/0x10 [ 946.779635][ T1132] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 946.785864][ T1132] nf_setsockopt+0x77/0xd0 [ 946.790520][ T1132] ip_setsockopt+0xdf/0x100 [ 946.795313][ T1132] udp_setsockopt+0x68/0xb0 [ 946.800038][ T1132] sock_common_setsockopt+0x94/0xd0 [ 946.805709][ T1132] __sys_setsockopt+0x261/0x4c0 [ 946.810685][ T1132] ? sock_create_kern+0x50/0x50 [ 946.816737][ T1132] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 946.822341][ T1132] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 946.828144][ T1132] ? do_syscall_64+0x26/0x790 [ 946.833034][ T1132] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 946.839442][ T1132] ? do_syscall_64+0x26/0x790 [ 946.844151][ T1132] __x64_sys_setsockopt+0xbe/0x150 [ 946.849527][ T1132] do_syscall_64+0xfa/0x790 [ 946.854240][ T1132] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 946.860460][ T1132] RIP: 0033:0x441c69 [ 946.864369][ T1132] Code: 64 0a 00 00 00 00 00 00 00 72 73 79 73 6c 6f 67 64 3a 20 76 65 72 73 69 6f 6e 20 25 73 2c 20 63 6f 6e 66 69 67 20 76 61 6c 69 <64> 61 74 69 6f 6e 20 72 75 6e 20 28 6c 65 76 65 6c 20 25 64 29 2c [ 946.884292][ T1132] RSP: 002b:00007ffd4495bb08 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 946.893004][ T1132] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441c69 [ 946.901246][ T1132] RDX: 0000000000000040 RSI: ffffff0f00000000 RDI: 0000000000000003 [ 946.909617][ T1132] RBP: 00000000000c0d3d R08: 0000000000000418 R09: 00000000004002c8 [ 946.917847][ T1132] R10: 0000000020000380 R11: 0000000000000246 R12: 00000000004029e0 [ 946.926029][ T1132] R13: 0000000000402a70 R14: 0000000000000000 R15: 0000000000000000 [ 946.934067][ T1132] INFO: task syz-executor071:9756 blocked for more than 144 seconds. [ 946.942514][ T1132] Not tainted 5.6.0-rc1-syzkaller #0 [ 946.949485][ T1132] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 946.958412][ T1132] syz-executor071 D28072 9756 9748 0x00004004 [ 946.965106][ T1132] Call Trace: [ 946.968423][ T1132] __schedule+0x934/0x1f90 [ 946.972856][ T1132] ? __sched_text_start+0x8/0x8 [ 946.977916][ T1132] ? lock_downgrade+0x920/0x920 [ 946.982792][ T1132] ? rwlock_bug.part.0+0x90/0x90 [ 946.988007][ T1132] schedule+0xdc/0x2b0 [ 946.992097][ T1132] schedule_preempt_disabled+0x13/0x20 [ 946.997841][ T1132] __mutex_lock+0x7ab/0x13c0 [ 947.002456][ T1132] ? hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 947.009172][ T1132] ? mutex_trylock+0x2d0/0x2d0 [ 947.014102][ T1132] ? find_held_lock+0x35/0x130 [ 947.019133][ T1132] ? xt_find_match+0x1e8/0x280 [ 947.023935][ T1132] mutex_lock_nested+0x16/0x20 [ 947.028981][ T1132] ? mutex_lock_nested+0x16/0x20 [ 947.033954][ T1132] hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 947.040817][ T1132] hashlimit_mt_check+0xa4/0xd0 [ 947.045855][ T1132] ? hashlimit_mt_check_common.isra.0+0x1500/0x1500 [ 947.052619][ T1132] xt_check_match+0x280/0x690 [ 947.057610][ T1132] ? xt_check_target+0x690/0x690 [ 947.062591][ T1132] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 947.069100][ T1132] ? mutex_unlock+0xd/0x10 [ 947.073553][ T1132] ? xt_find_match+0x73/0x280 [ 947.079416][ T1132] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 947.085935][ T1132] find_check_entry.isra.0+0x32f/0x920 [ 947.091446][ T1132] ? ipt_do_table+0x1b80/0x1b80 [ 947.096572][ T1132] ? lockdep_hardirqs_on+0x421/0x5e0 [ 947.101888][ T1132] ? trace_hardirqs_on+0x67/0x240 [ 947.107171][ T1132] ? kvfree+0x4a/0x60 [ 947.111209][ T1132] translate_table+0xcb4/0x17d0 [ 947.116530][ T1132] ? compat_do_ipt_get_ctl+0x910/0x910 [ 947.122029][ T1132] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 947.128660][ T1132] ? _copy_from_user+0x12c/0x1a0 [ 947.133652][ T1132] do_ipt_set_ctl+0x2fe/0x4c2 [ 947.138603][ T1132] ? compat_do_ipt_set_ctl+0x170/0x170 [ 947.144117][ T1132] ? mutex_unlock+0xd/0x10 [ 947.148832][ T1132] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 947.155009][ T1132] nf_setsockopt+0x77/0xd0 [ 947.159464][ T1132] ip_setsockopt+0xdf/0x100 [ 947.163992][ T1132] udp_setsockopt+0x68/0xb0 [ 947.168766][ T1132] sock_common_setsockopt+0x94/0xd0 [ 947.174157][ T1132] __sys_setsockopt+0x261/0x4c0 [ 947.179794][ T1132] ? sock_create_kern+0x50/0x50 [ 947.184749][ T1132] ? up_read+0x1cd/0x810 [ 947.189245][ T1132] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 947.194964][ T1132] ? do_syscall_64+0x26/0x790 [ 947.199673][ T1132] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 947.206892][ T1132] ? do_syscall_64+0x26/0x790 [ 947.211629][ T1132] __x64_sys_setsockopt+0xbe/0x150 [ 947.217116][ T1132] do_syscall_64+0xfa/0x790 [ 947.221641][ T1132] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 947.227739][ T1132] RIP: 0033:0x441c69 [ 947.231670][ T1132] Code: 64 0a 00 00 00 00 00 00 00 72 73 79 73 6c 6f 67 64 3a 20 76 65 72 73 69 6f 6e 20 25 73 2c 20 63 6f 6e 66 69 67 20 76 61 6c 69 <64> 61 74 69 6f 6e 20 72 75 6e 20 28 6c 65 76 65 6c 20 25 64 29 2c [ 947.251829][ T1132] RSP: 002b:00007ffd4495bb08 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 947.260517][ T1132] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441c69 [ 947.268863][ T1132] RDX: 0000000000000040 RSI: ffffff0f00000000 RDI: 0000000000000003 [ 947.277157][ T1132] RBP: 00000000000c0d3b R08: 0000000000000418 R09: 00000000004002c8 [ 947.285379][ T1132] R10: 0000000020000380 R11: 0000000000000246 R12: 00000000004029e0 [ 947.293377][ T1132] R13: 0000000000402a70 R14: 0000000000000000 R15: 0000000000000000 [ 947.301682][ T1132] INFO: task syz-executor071:9757 blocked for more than 144 seconds. [ 947.310007][ T1132] Not tainted 5.6.0-rc1-syzkaller #0 [ 947.315993][ T1132] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 947.324672][ T1132] syz-executor071 D28072 9757 9743 0x00004004 [ 947.331319][ T1132] Call Trace: [ 947.335873][ T1132] __schedule+0x934/0x1f90 [ 947.340353][ T1132] ? __sched_text_start+0x8/0x8 [ 947.345454][ T1132] ? lock_downgrade+0x920/0x920 [ 947.350334][ T1132] ? rwlock_bug.part.0+0x90/0x90 [ 947.355536][ T1132] schedule+0xdc/0x2b0 [ 947.359642][ T1132] schedule_preempt_disabled+0x13/0x20 [ 947.365366][ T1132] __mutex_lock+0x7ab/0x13c0 [ 947.369997][ T1132] ? hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 947.376810][ T1132] ? mutex_trylock+0x2d0/0x2d0 [ 947.381583][ T1132] ? mark_lock+0xc2/0x1220 [ 947.386344][ T1132] ? find_held_lock+0x35/0x130 [ 947.391162][ T1132] ? xt_find_match+0x1e8/0x280 [ 947.396319][ T1132] mutex_lock_nested+0x16/0x20 [ 947.401116][ T1132] ? mutex_lock_nested+0x16/0x20 [ 947.406346][ T1132] hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 947.412704][ T1132] hashlimit_mt_check+0xa4/0xd0 [ 947.417759][ T1132] ? hashlimit_mt_check_common.isra.0+0x1500/0x1500 [ 947.424373][ T1132] xt_check_match+0x280/0x690 [ 947.429294][ T1132] ? xt_check_target+0x690/0x690 [ 947.434613][ T1132] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 947.441142][ T1132] ? mutex_unlock+0xd/0x10 [ 947.445728][ T1132] ? xt_find_match+0x73/0x280 [ 947.450468][ T1132] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 947.456984][ T1132] find_check_entry.isra.0+0x32f/0x920 [ 947.462498][ T1132] ? ipt_do_table+0x1b80/0x1b80 [ 947.468509][ T1132] ? lockdep_hardirqs_on+0x421/0x5e0 [ 947.473966][ T1132] ? trace_hardirqs_on+0x67/0x240 [ 947.479508][ T1132] ? kvfree+0x4a/0x60 [ 947.483562][ T1132] translate_table+0xcb4/0x17d0 [ 947.488691][ T1132] ? compat_do_ipt_get_ctl+0x910/0x910 [ 947.494189][ T1132] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 947.500716][ T1132] ? _copy_from_user+0x12c/0x1a0 [ 947.505837][ T1132] do_ipt_set_ctl+0x2fe/0x4c2 [ 947.510553][ T1132] ? compat_do_ipt_set_ctl+0x170/0x170 [ 947.516289][ T1132] ? mutex_unlock+0xd/0x10 [ 947.520740][ T1132] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 947.527024][ T1132] nf_setsockopt+0x77/0xd0 [ 947.531504][ T1132] ip_setsockopt+0xdf/0x100 [ 947.536379][ T1132] udp_setsockopt+0x68/0xb0 [ 947.540914][ T1132] sock_common_setsockopt+0x94/0xd0 [ 947.546401][ T1132] __sys_setsockopt+0x261/0x4c0 [ 947.551280][ T1132] ? sock_create_kern+0x50/0x50 [ 947.556822][ T1132] ? up_read+0x1cd/0x810 [ 947.561381][ T1132] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 947.567136][ T1132] ? do_syscall_64+0x26/0x790 [ 947.571849][ T1132] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 947.578287][ T1132] ? do_syscall_64+0x26/0x790 [ 947.583021][ T1132] __x64_sys_setsockopt+0xbe/0x150 [ 947.588407][ T1132] do_syscall_64+0xfa/0x790 [ 947.593163][ T1132] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 947.600361][ T1132] RIP: 0033:0x441c69 [ 947.604282][ T1132] Code: 64 0a 00 00 00 00 00 00 00 72 73 79 73 6c 6f 67 64 3a 20 76 65 72 73 69 6f 6e 20 25 73 2c 20 63 6f 6e 66 69 67 20 76 61 6c 69 <64> 61 74 69 6f 6e 20 72 75 6e 20 28 6c 65 76 65 6c 20 25 64 29 2c [ 947.624181][ T1132] RSP: 002b:00007ffd4495bb08 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 947.632828][ T1132] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441c69 [ 947.641154][ T1132] RDX: 0000000000000040 RSI: ffffff0f00000000 RDI: 0000000000000003 [ 947.649536][ T1132] RBP: 00000000000c0d38 R08: 0000000000000418 R09: 00000000004002c8 [ 947.657763][ T1132] R10: 0000000020000380 R11: 0000000000000246 R12: 00000000004029e0 [ 947.666112][ T1132] R13: 0000000000402a70 R14: 0000000000000000 R15: 0000000000000000 [ 947.674263][ T1132] INFO: task syz-executor071:9758 blocked for more than 144 seconds. [ 947.682602][ T1132] Not tainted 5.6.0-rc1-syzkaller #0 [ 947.693460][ T1132] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 947.702815][ T1132] syz-executor071 D28072 9758 9744 0x00000004 [ 947.709366][ T1132] Call Trace: [ 947.712682][ T1132] __schedule+0x934/0x1f90 [ 947.717544][ T1132] ? __sched_text_start+0x8/0x8 [ 947.722402][ T1132] ? lock_downgrade+0x920/0x920 [ 947.728364][ T1132] ? rwlock_bug.part.0+0x90/0x90 [ 947.733354][ T1132] schedule+0xdc/0x2b0 [ 947.737676][ T1132] schedule_preempt_disabled+0x13/0x20 [ 947.743160][ T1132] __mutex_lock+0x7ab/0x13c0 [ 947.748004][ T1132] ? hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 947.754546][ T1132] ? mutex_trylock+0x2d0/0x2d0 [ 947.759564][ T1132] ? mark_lock+0xc2/0x1220 [ 947.764120][ T1132] ? find_held_lock+0x35/0x130 [ 947.769158][ T1132] ? xt_find_match+0x1e8/0x280 [ 947.774225][ T1132] mutex_lock_nested+0x16/0x20 [ 947.779272][ T1132] ? mutex_lock_nested+0x16/0x20 [ 947.784234][ T1132] hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 947.790833][ T1132] hashlimit_mt_check+0xa4/0xd0 [ 947.795876][ T1132] ? hashlimit_mt_check_common.isra.0+0x1500/0x1500 [ 947.802493][ T1132] xt_check_match+0x280/0x690 [ 947.807445][ T1132] ? xt_check_target+0x690/0x690 [ 947.812413][ T1132] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 947.818917][ T1132] ? mutex_unlock+0xd/0x10 [ 947.823473][ T1132] ? xt_find_match+0x73/0x280 [ 947.828449][ T1132] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 947.835249][ T1132] find_check_entry.isra.0+0x32f/0x920 [ 947.841205][ T1132] ? ipt_do_table+0x1b80/0x1b80 [ 947.846319][ T1132] ? lockdep_hardirqs_on+0x421/0x5e0 [ 947.851637][ T1132] ? trace_hardirqs_on+0x67/0x240 [ 947.857844][ T1132] ? kvfree+0x4a/0x60 [ 947.861879][ T1132] translate_table+0xcb4/0x17d0 [ 947.867040][ T1132] ? compat_do_ipt_get_ctl+0x910/0x910 [ 947.872547][ T1132] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 947.879043][ T1132] ? _copy_from_user+0x12c/0x1a0 [ 947.884032][ T1132] do_ipt_set_ctl+0x2fe/0x4c2 [ 947.888955][ T1132] ? compat_do_ipt_set_ctl+0x170/0x170 [ 947.895647][ T1132] ? mutex_unlock+0xd/0x10 [ 947.900095][ T1132] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 947.906313][ T1132] nf_setsockopt+0x77/0xd0 [ 947.910766][ T1132] ip_setsockopt+0xdf/0x100 [ 947.915545][ T1132] udp_setsockopt+0x68/0xb0 [ 947.920079][ T1132] sock_common_setsockopt+0x94/0xd0 [ 947.925471][ T1132] __sys_setsockopt+0x261/0x4c0 [ 947.930361][ T1132] ? sock_create_kern+0x50/0x50 [ 947.935452][ T1132] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 947.941113][ T1132] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 947.946757][ T1132] ? do_syscall_64+0x26/0x790 [ 947.951455][ T1132] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 947.957798][ T1132] ? do_syscall_64+0x26/0x790 [ 947.962517][ T1132] __x64_sys_setsockopt+0xbe/0x150 [ 947.967867][ T1132] do_syscall_64+0xfa/0x790 [ 947.972500][ T1132] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 947.978652][ T1132] RIP: 0033:0x441c69 [ 947.982555][ T1132] Code: 64 0a 00 00 00 00 00 00 00 72 73 79 73 6c 6f 67 64 3a 20 76 65 72 73 69 6f 6e 20 25 73 2c 20 63 6f 6e 66 69 67 20 76 61 6c 69 <64> 61 74 69 6f 6e 20 72 75 6e 20 28 6c 65 76 65 6c 20 25 64 29 2c [ 948.003460][ T1132] RSP: 002b:00007ffd4495bb08 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 948.012195][ T1132] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441c69 [ 948.020427][ T1132] RDX: 0000000000000040 RSI: ffffff0f00000000 RDI: 0000000000000003 [ 948.028664][ T1132] RBP: 00000000000c0d3d R08: 0000000000000418 R09: 00000000004002c8 [ 948.036913][ T1132] R10: 0000000020000380 R11: 0000000000000246 R12: 00000000004029e0 [ 948.045080][ T1132] R13: 0000000000402a70 R14: 0000000000000000 R15: 0000000000000000 [ 948.053336][ T1132] INFO: task syz-executor071:9759 blocked for more than 145 seconds. [ 948.061649][ T1132] Not tainted 5.6.0-rc1-syzkaller #0 [ 948.067675][ T1132] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 948.076576][ T1132] syz-executor071 D28072 9759 9749 0x00004004 [ 948.082921][ T1132] Call Trace: [ 948.086404][ T1132] __schedule+0x934/0x1f90 [ 948.090861][ T1132] ? __sched_text_start+0x8/0x8 [ 948.096004][ T1132] ? lock_downgrade+0x920/0x920 [ 948.100881][ T1132] ? rwlock_bug.part.0+0x90/0x90 [ 948.106869][ T1132] schedule+0xdc/0x2b0 [ 948.110964][ T1132] schedule_preempt_disabled+0x13/0x20 [ 948.116631][ T1132] __mutex_lock+0x7ab/0x13c0 [ 948.121252][ T1132] ? hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 948.129002][ T1132] ? mutex_trylock+0x2d0/0x2d0 [ 948.133828][ T1132] ? find_held_lock+0x35/0x130 [ 948.138886][ T1132] ? xt_find_match+0x1e8/0x280 [ 948.143792][ T1132] mutex_lock_nested+0x16/0x20 [ 948.148784][ T1132] ? mutex_lock_nested+0x16/0x20 [ 948.153751][ T1132] hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 948.160475][ T1132] hashlimit_mt_check+0xa4/0xd0 [ 948.165550][ T1132] ? hashlimit_mt_check_common.isra.0+0x1500/0x1500 [ 948.172180][ T1132] xt_check_match+0x280/0x690 [ 948.177088][ T1132] ? xt_check_target+0x690/0x690 [ 948.182054][ T1132] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 948.188622][ T1132] ? mutex_unlock+0xd/0x10 [ 948.193261][ T1132] ? xt_find_match+0x73/0x280 [ 948.198224][ T1132] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 948.204510][ T1132] find_check_entry.isra.0+0x32f/0x920 [ 948.210219][ T1132] ? ipt_do_table+0x1b80/0x1b80 [ 948.215319][ T1132] ? lockdep_hardirqs_on+0x421/0x5e0 [ 948.220624][ T1132] ? trace_hardirqs_on+0x67/0x240 [ 948.225918][ T1132] ? kvfree+0x4a/0x60 [ 948.229936][ T1132] translate_table+0xcb4/0x17d0 [ 948.235049][ T1132] ? compat_do_ipt_get_ctl+0x910/0x910 [ 948.240618][ T1132] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 948.247106][ T1132] ? _copy_from_user+0x12c/0x1a0 [ 948.252099][ T1132] do_ipt_set_ctl+0x2fe/0x4c2 [ 948.257911][ T1132] ? compat_do_ipt_set_ctl+0x170/0x170 [ 948.263407][ T1132] ? mutex_unlock+0xd/0x10 [ 948.268075][ T1132] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 948.274080][ T1132] nf_setsockopt+0x77/0xd0 [ 948.278725][ T1132] ip_setsockopt+0xdf/0x100 [ 948.283257][ T1132] udp_setsockopt+0x68/0xb0 [ 948.287953][ T1132] sock_common_setsockopt+0x94/0xd0 [ 948.293185][ T1132] __sys_setsockopt+0x261/0x4c0 [ 948.298301][ T1132] ? sock_create_kern+0x50/0x50 [ 948.303176][ T1132] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 948.309000][ T1132] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 948.314500][ T1132] ? do_syscall_64+0x26/0x790 [ 948.319522][ T1132] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 948.325795][ T1132] ? do_syscall_64+0x26/0x790 [ 948.330494][ T1132] __x64_sys_setsockopt+0xbe/0x150 [ 948.335924][ T1132] do_syscall_64+0xfa/0x790 [ 948.340468][ T1132] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 948.346578][ T1132] RIP: 0033:0x441c69 [ 948.350489][ T1132] Code: 64 0a 00 00 00 00 00 00 00 72 73 79 73 6c 6f 67 64 3a 20 76 65 72 73 69 6f 6e 20 25 73 2c 20 63 6f 6e 66 69 67 20 76 61 6c 69 <64> 61 74 69 6f 6e 20 72 75 6e 20 28 6c 65 76 65 6c 20 25 64 29 2c [ 948.370376][ T1132] RSP: 002b:00007ffd4495bb08 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 948.379138][ T1132] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441c69 [ 948.388345][ T1132] RDX: 0000000000000040 RSI: ffffff0f00000000 RDI: 0000000000000003 [ 948.396575][ T1132] RBP: 00000000000c0d3b R08: 0000000000000418 R09: 00000000004002c8 [ 948.404567][ T1132] R10: 0000000020000380 R11: 0000000000000246 R12: 00000000004029e0 [ 948.412826][ T1132] R13: 0000000000402a70 R14: 0000000000000000 R15: 0000000000000000 [ 948.421077][ T1132] [ 948.421077][ T1132] Showing all locks held in the system: [ 948.429096][ T1132] 1 lock held by khungtaskd/1132: [ 948.434137][ T1132] #0: ffffffff89bac240 (rcu_read_lock){....}, at: debug_show_all_locks+0x5f/0x279 [ 948.443712][ T1132] 2 locks held by kworker/1:6/2797: [ 948.449102][ T1132] 4 locks held by rs:main Q:Reg/9624: [ 948.454483][ T1132] #0: ffff8880ae937558 (&rq->lock){-.-.}, at: __schedule+0x232/0x1f90 [ 948.463702][ T1132] #1: ffffffff89bac240 (rcu_read_lock){....}, at: vfs_write+0x485/0x5d0 [ 948.472507][ T1132] #2: ffff8880918994c8 (&sb->s_type->i_mutex_key#11){+.+.}, at: ext4_buffered_write_iter+0xba/0x460 [ 948.483728][ T1132] #3: ffffffff89bac240 (rcu_read_lock){....}, at: current_time+0x6b/0x110 [ 948.492672][ T1132] 1 lock held by rsyslogd/9626: [ 948.497739][ T1132] #0: ffff88809be61420 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0xee/0x110 [ 948.506681][ T1132] 2 locks held by getty/9716: [ 948.511356][ T1132] #0: ffff8880a1199090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 948.521479][ T1132] #1: ffffc900017fb2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 948.531548][ T1132] 2 locks held by getty/9717: [ 948.536448][ T1132] #0: ffff888094cec090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 948.545638][ T1132] #1: ffffc9000183b2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 948.555454][ T1132] 2 locks held by getty/9718: [ 948.560130][ T1132] #0: ffff88809e3cd090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 948.570410][ T1132] #1: ffffc9000184b2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 948.580193][ T1132] 2 locks held by getty/9719: [ 948.585071][ T1132] #0: ffff888098230090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 948.594040][ T1132] #1: ffffc9000181b2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 948.603900][ T1132] 2 locks held by getty/9720: [ 948.608791][ T1132] #0: ffff8880953fe090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 948.617968][ T1132] #1: ffffc9000180b2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 948.627794][ T1132] 2 locks held by getty/9721: [ 948.632468][ T1132] #0: ffff8880a7a14090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 948.641696][ T1132] #1: ffffc9000182b2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 948.652532][ T1132] 2 locks held by getty/9722: [ 948.657405][ T1132] #0: ffff88808ef49090 (&tty->ldisc_sem){++++}, at: ldsem_down_read+0x33/0x40 [ 948.666592][ T1132] #1: ffffc9000176b2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x220/0x1bf0 [ 948.676394][ T1132] 1 lock held by syz-executor071/9752: [ 948.681969][ T1132] #0: ffffffff8a7d2620 (hashlimit_mutex){+.+.}, at: htable_put+0x21/0x220 [ 948.690863][ T1132] 1 lock held by syz-executor071/9755: [ 948.696495][ T1132] #0: ffffffff8a7d2620 (hashlimit_mutex){+.+.}, at: hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 948.707549][ T1132] 1 lock held by syz-executor071/9756: [ 948.713001][ T1132] #0: ffffffff8a7d2620 (hashlimit_mutex){+.+.}, at: hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 948.724319][ T1132] 1 lock held by syz-executor071/9757: [ 948.729958][ T1132] #0: ffffffff8a7d2620 (hashlimit_mutex){+.+.}, at: hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 948.741230][ T1132] 1 lock held by syz-executor071/9758: [ 948.746877][ T1132] #0: ffffffff8a7d2620 (hashlimit_mutex){+.+.}, at: hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 948.759184][ T1132] 1 lock held by syz-executor071/9759: [ 948.764652][ T1132] #0: ffffffff8a7d2620 (hashlimit_mutex){+.+.}, at: hashlimit_mt_check_common.isra.0+0x341/0x1500 [ 948.776623][ T1132] [ 948.778969][ T1132] ============================================= [ 948.778969][ T1132] [ 948.787660][ T1132] NMI backtrace for cpu 0 [ 948.792024][ T1132] CPU: 0 PID: 1132 Comm: khungtaskd Not tainted 5.6.0-rc1-syzkaller #0 [ 948.800283][ T1132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 948.811129][ T1132] Call Trace: [ 948.814521][ T1132] dump_stack+0x197/0x210 [ 948.818865][ T1132] nmi_cpu_backtrace.cold+0x70/0xb2 [ 948.824109][ T1132] ? vprintk_func+0x86/0x189 [ 948.828807][ T1132] ? lapic_can_unplug_cpu.cold+0x3a/0x3a [ 948.834450][ T1132] nmi_trigger_cpumask_backtrace+0x23b/0x28b [ 948.840572][ T1132] arch_trigger_cpumask_backtrace+0x14/0x20 [ 948.846493][ T1132] watchdog+0xb11/0x10c0 [ 948.850770][ T1132] kthread+0x361/0x430 [ 948.854845][ T1132] ? reset_hung_task_detector+0x30/0x30 [ 948.860408][ T1132] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 948.866153][ T1132] ret_from_fork+0x24/0x30 [ 948.870703][ T1132] Sending NMI from CPU 0 to CPUs 1: [ 948.876238][ C1] NMI backtrace for cpu 1 [ 948.876245][ C1] CPU: 1 PID: 2797 Comm: kworker/1:6 Not tainted 5.6.0-rc1-syzkaller #0 [ 948.876251][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 948.876256][ C1] Workqueue: events_power_efficient htable_gc [ 948.876263][ C1] RIP: 0010:lock_is_held_type+0x271/0x320 [ 948.876276][ C1] Code: fc ff df c7 83 94 08 00 00 00 00 00 00 48 c1 e8 03 80 3c 10 00 0f 85 88 00 00 00 48 83 3d 3e 2a 59 08 00 74 31 48 8b 7d c0 57 <9d> 0f 1f 44 00 00 48 83 c4 20 44 89 e0 5b 41 5c 41 5d 41 5e 41 5f [ 948.876280][ C1] RSP: 0018:ffffc900088cfc10 EFLAGS: 00000086 [ 948.876288][ C1] RAX: 1ffffffff1367617 RBX: ffff88809f632400 RCX: ffff88809f632c98 [ 948.876293][ C1] RDX: dffffc0000000000 RSI: ffffffff89bac1c0 RDI: 0000000000000282 [ 948.876299][ C1] RBP: ffffc900088cfc60 R08: 1ffffffff16a3382 R09: fffffbfff16a3383 [ 948.876304][ C1] R10: fffffbfff16a3382 R11: ffffffff8b519c17 R12: 0000000000000000 [ 948.876310][ C1] R13: ffff88809f632cc0 R14: ffffffff89bac1c0 R15: 0000000000000002 [ 948.876315][ C1] FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 948.876320][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 948.876326][ C1] CR2: 00000000004c0308 CR3: 00000000a6c1b000 CR4: 00000000001406e0 [ 948.876331][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 948.876337][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 948.876339][ C1] Call Trace: [ 948.876343][ C1] ___might_sleep+0x205/0x2c0 [ 948.876347][ C1] htable_selective_cleanup+0x245/0x340 [ 948.876351][ C1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 948.876355][ C1] ? trace_hardirqs_on+0x67/0x240 [ 948.876358][ C1] htable_gc+0x21/0xb0 [ 948.876361][ C1] process_one_work+0xa05/0x17a0 [ 948.876365][ C1] ? mark_held_locks+0xf0/0xf0 [ 948.876369][ C1] ? pwq_dec_nr_in_flight+0x320/0x320 [ 948.876372][ C1] ? lock_acquire+0x190/0x410 [ 948.876375][ C1] worker_thread+0x98/0xe40 [ 948.876379][ C1] ? trace_hardirqs_on+0x67/0x240 [ 948.876382][ C1] kthread+0x361/0x430 [ 948.876386][ C1] ? process_one_work+0x17a0/0x17a0 [ 948.876390][ C1] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 948.876393][ C1] ret_from_fork+0x24/0x30 [ 948.877592][ T1132] Kernel panic - not syncing: hung_task: blocked tasks [ 949.101903][ T1132] CPU: 0 PID: 1132 Comm: khungtaskd Not tainted 5.6.0-rc1-syzkaller #0 [ 949.110153][ T1132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 949.120346][ T1132] Call Trace: [ 949.123649][ T1132] dump_stack+0x197/0x210 [ 949.128098][ T1132] panic+0x2e3/0x75c [ 949.132019][ T1132] ? add_taint.cold+0x16/0x16 [ 949.136701][ T1132] ? lapic_can_unplug_cpu.cold+0x3a/0x3a [ 949.142357][ T1132] ? ___preempt_schedule+0x16/0x18 [ 949.147485][ T1132] ? nmi_trigger_cpumask_backtrace+0x21b/0x28b [ 949.153662][ T1132] ? nmi_trigger_cpumask_backtrace+0x24c/0x28b [ 949.159830][ T1132] ? nmi_trigger_cpumask_backtrace+0x256/0x28b [ 949.166003][ T1132] ? nmi_trigger_cpumask_backtrace+0x21b/0x28b [ 949.172174][ T1132] watchdog+0xb22/0x10c0 [ 949.176522][ T1132] kthread+0x361/0x430 [ 949.180727][ T1132] ? reset_hung_task_detector+0x30/0x30 [ 949.186277][ T1132] ? kthread_mod_delayed_work+0x1f0/0x1f0 [ 949.192054][ T1132] ret_from_fork+0x24/0x30 [ 949.198175][ T1132] Kernel Offset: disabled [ 949.202727][ T1132] Rebooting in 86400 seconds..