[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 38.269724] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 40.851290] random: sshd: uninitialized urandom read (32 bytes read) [ 41.193325] random: sshd: uninitialized urandom read (32 bytes read) [ 42.047850] random: sshd: uninitialized urandom read (32 bytes read) [ 68.297960] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.55' (ECDSA) to the list of known hosts. [ 74.138383] random: sshd: uninitialized urandom read (32 bytes read) executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 82.528116] general protection fault: 0000 [#1] SMP PTI [ 82.533560] CPU: 1 PID: 7321 Comm: syz-executor145 Not tainted 4.18.0-rc8+ #34 [ 82.540919] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.550295] RIP: 0010:__run_timers+0xc3a/0x1170 [ 82.554954] Code: 2c b2 1a 00 49 83 c7 08 4d 85 f6 0f 85 b2 02 00 00 4c 89 ff e8 07 05 74 00 4c 89 20 4d 85 e4 4c 8b 74 24 40 0f 85 a7 02 00 00 <4d> 89 2f eb 1b 8b 7c 24 38 e8 f8 0d 74 00 4d 85 ff 75 c2 0f 1f 00 [ 82.574313] RSP: 0018:ffff88021fd0fda0 EFLAGS: 00010046 [ 82.579695] RAX: ffffffff8a1b0000 RBX: 0000000000000000 RCX: ffff880192cd1d00 [ 82.586964] RDX: ffffffff8a1b1000 RSI: 0000000000000008 RDI: dead000000000208 [ 82.594233] RBP: ffff88021fd0feb0 R08: 0000000000480020 R09: 0000000000000002 [ 82.601500] R10: 0000000000000000 R11: ffffffff8129f260 R12: 0000000000000000 [ 82.608765] R13: ffff88021fd0fe30 R14: ffff88019a85f680 R15: dead000000000208 [ 82.616046] FS: 00007fafa4a21700(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 [ 82.624303] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.630181] CR2: 0000000020000140 CR3: 00000001a825e000 CR4: 00000000001406e0 [ 82.637452] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 82.644729] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 82.651990] Call Trace: [ 82.654583] [ 82.656769] ? __msan_poison_alloca+0x173/0x200 [ 82.661476] ? timers_dead_cpu+0xf80/0xf80 [ 82.665737] run_timer_softirq+0x43/0x70 [ 82.669828] __do_softirq+0x582/0x969 [ 82.673639] irq_exit+0x208/0x240 [ 82.677119] exiting_irq+0xe/0x10 [ 82.680588] smp_apic_timer_interrupt+0x64/0x90 [ 82.685274] apic_timer_interrupt+0xf/0x20 [ 82.689506] [ 82.691768] RIP: 0010:finish_lock_switch+0x2b/0x40 [ 82.696701] Code: 48 89 e5 53 48 89 fb e8 43 de 8b 00 8b b8 88 0c 00 00 48 8b 00 48 85 c0 75 12 48 89 df e8 9d d3 8b 00 c6 00 00 c6 03 00 fb 5b <5d> c3 e8 5e dd 8b 00 eb e7 66 90 66 2e 0f 1f 84 00 00 00 00 00 55 [ 82.716098] RSP: 0018:ffff8801ba14f780 EFLAGS: 00000296 ORIG_RAX: ffffffffffffff13 [ 82.723813] RAX: ffff88021f3d0d00 RBX: ffff880192cd1d80 RCX: ffff88021f3d1d00 [ 82.731083] RDX: ffff88021f3d1d00 RSI: aaaaaaaaaaaab000 RDI: ffffea000cbf2560 [ 82.738373] RBP: ffff8801ba14f780 R08: 0000000000480020 R09: 0000000000000002 [ 82.745640] R10: ffffffff7fffffff R11: 0000000000000000 R12: ffff8801d4681d80 [ 82.752912] R13: 0000000000000000 R14: ffff880192cd2678 R15: ffff88021fdb9d00 [ 82.760202] finish_task_switch+0xe3/0x260 [ 82.764478] __schedule+0x681/0x770 [ 82.768143] schedule+0x1bc/0x2d0 [ 82.771625] futex_wait_queue_me+0x557/0x6d0 [ 82.776296] futex_wait+0x3f2/0xbe0 [ 82.779959] ? __msan_metadata_ptr_for_load_1+0x10/0x20 [ 82.785336] do_futex+0xbe0/0x6b00 [ 82.788897] ? kmsan_set_origin_inline+0x6b/0x120 [ 82.793789] ? __local_bh_enable_ip+0x37/0x140 [ 82.798401] ? __local_bh_enable_ip+0x37/0x140 [ 82.803020] ? _raw_spin_unlock_bh+0x4b/0x60 [ 82.807475] ? kmsan_set_origin_inline+0x6b/0x120 [ 82.812341] ? __msan_poison_alloca+0x173/0x200 [ 82.817055] ? __se_sys_futex+0xd2/0x7d0 [ 82.821158] __se_sys_futex+0x372/0x7d0 [ 82.825167] ? syscall_return_slowpath+0x79/0x700 [ 82.830052] ? syscall_return_slowpath+0xdb/0x700 [ 82.834948] __x64_sys_futex+0x1a2/0x200 [ 82.839057] ? futex_lock_pi+0x1de0/0x1de0 [ 82.843300] do_syscall_64+0x15b/0x220 [ 82.847280] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 82.852467] RIP: 0033:0x446319 [ 82.855740] Code: e8 2c b3 02 00 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 2b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 82.875124] RSP: 002b:00007fafa4a20da8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 82.882836] RAX: ffffffffffffffda RBX: 00000000006dac28 RCX: 0000000000446319 [ 82.890108] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000006dac28 [ 82.897376] RBP: 00000000006dac20 R08: 0000000000000000 R09: 0000000000000000 [ 82.904687] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dac2c [ 82.911958] R13: 6b636f73762d7473 R14: 6f68762f7665642f R15: 00000000006dad2c [ 82.919228] Modules linked in: [ 82.922423] Dumping ftrace buffer: [ 82.925959] (ftrace buffer empty) [ 82.929675] ---[ end trace e923cda0f8e6bf21 ]--- [ 82.934446] RIP: 0010:__run_timers+0xc3a/0x1170 [ 82.939102] Code: 2c b2 1a 00 49 83 c7 08 4d 85 f6 0f 85 b2 02 00 00 4c 89 ff e8 07 05 74 00 4c 89 20 4d 85 e4 4c 8b 74 24 40 0f 85 a7 02 00 00 <4d> 89 2f eb 1b 8b 7c 24 38 e8 f8 0d 74 00 4d 85 ff 75 c2 0f 1f 00 [ 82.958454] RSP: 0018:ffff88021fd0fda0 EFLAGS: 00010046 [ 82.963816] RAX: ffffffff8a1b0000 RBX: 0000000000000000 RCX: ffff880192cd1d00 [ 82.971088] RDX: ffffffff8a1b1000 RSI: 0000000000000008 RDI: dead000000000208 [ 82.978356] RBP: ffff88021fd0feb0 R08: 0000000000480020 R09: 0000000000000002 [ 82.985646] R10: 0000000000000000 R11: ffffffff8129f260 R12: 0000000000000000 [ 82.992920] R13: ffff88021fd0fe30 R14: ffff88019a85f680 R15: dead000000000208 [ 83.000194] FS: 00007fafa4a21700(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 [ 83.008413] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 83.014295] CR2: 0000000020000140 CR3: 00000001a825e000 CR4: 00000000001406e0 [ 83.021564] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 83.028837] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 83.036113] Kernel panic - not syncing: Fatal exception in interrupt [ 83.043006] Dumping ftrace buffer: [ 83.046545] (ftrace buffer empty) [ 83.050591] Kernel Offset: disabled [ 83.054213] Rebooting in 86400 seconds..