Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.31' (ECDSA) to the list of known hosts. 2021/04/22 19:28:47 fuzzer started 2021/04/22 19:28:47 dialing manager at 10.128.0.169:40505 2021/04/22 19:28:47 syscalls: 3560 2021/04/22 19:28:47 code coverage: enabled 2021/04/22 19:28:47 comparison tracing: enabled 2021/04/22 19:28:47 extra coverage: enabled 2021/04/22 19:28:47 setuid sandbox: enabled 2021/04/22 19:28:47 namespace sandbox: enabled 2021/04/22 19:28:47 Android sandbox: /sys/fs/selinux/policy does not exist 2021/04/22 19:28:47 fault injection: enabled 2021/04/22 19:28:47 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2021/04/22 19:28:47 net packet injection: enabled 2021/04/22 19:28:47 net device setup: enabled 2021/04/22 19:28:47 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2021/04/22 19:28:47 devlink PCI setup: PCI device 0000:00:10.0 is not available 2021/04/22 19:28:47 USB emulation: enabled 2021/04/22 19:28:47 hci packet injection: enabled 2021/04/22 19:28:47 wifi device emulation: enabled 2021/04/22 19:28:47 802.15.4 emulation: enabled 2021/04/22 19:28:47 fetching corpus: 0, signal 0/2000 (executing program) 2021/04/22 19:28:48 fetching corpus: 50, signal 49922/53549 (executing program) 2021/04/22 19:28:48 fetching corpus: 100, signal 79628/84695 (executing program) 2021/04/22 19:28:48 fetching corpus: 150, signal 107930/114210 (executing program) 2021/04/22 19:28:48 fetching corpus: 200, signal 129435/136844 (executing program) 2021/04/22 19:28:49 fetching corpus: 250, signal 154396/162783 (executing program) 2021/04/22 19:28:49 fetching corpus: 300, signal 177936/187110 (executing program) 2021/04/22 19:28:49 fetching corpus: 350, signal 186697/196900 (executing program) syzkaller login: [ 77.383167][ T8462] Kernel panic - not syncing: corrupted stack end detected inside scheduler [ 77.391984][ T8462] CPU: 0 PID: 8462 Comm: sshd Not tainted 5.12.0-rc8-next-20210422-syzkaller #0 [ 77.401010][ T8462] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.411070][ T8462] Call Trace: [ 77.414366][ T8462] dump_stack+0x141/0x1d7 [ 77.418753][ T8462] panic+0x306/0x73d [ 77.422684][ T8462] ? __warn_printk+0xf3/0xf3 [ 77.427314][ T8462] ? debug_object_activate+0x287/0x3e0 [ 77.432809][ T8462] ? debug_object_assert_init+0x2e0/0x2e0 [ 77.438595][ T8462] ? lock_release+0x720/0x720 [ 77.443320][ T8462] __schedule+0x23ac/0x23c0 [ 77.447870][ T8462] ? schedule_hrtimeout_range_clock+0x183/0x370 [ 77.454145][ T8462] ? io_schedule_timeout+0x140/0x140 [ 77.459467][ T8462] ? hrtimer_start_range_ns+0x58a/0x870 [ 77.465054][ T8462] schedule+0xcf/0x270 [ 77.469164][ T8462] schedule_hrtimeout_range_clock+0x195/0x370 [ 77.475265][ T8462] ? hrtimer_nanosleep_restart+0x170/0x170 [ 77.481109][ T8462] ? lock_downgrade+0x6e0/0x6e0 [ 77.486001][ T8462] ? hrtimer_init_sleeper_on_stack+0x90/0x90 [ 77.492028][ T8462] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 77.497899][ T8462] ? lockdep_hardirqs_on+0x79/0x100 [ 77.503141][ T8462] poll_schedule_timeout.constprop.0+0x107/0x1e0 [ 77.509502][ T8462] ? __pollwait+0x430/0x430 [ 77.514061][ T8462] do_select+0x1182/0x16a0 [ 77.518522][ T8462] ? select_estimate_accuracy+0x320/0x320 [ 77.524269][ T8462] ? poll_schedule_timeout.constprop.0+0x1e0/0x1e0 [ 77.530803][ T8462] ? poll_schedule_timeout.constprop.0+0x1e0/0x1e0 [ 77.537348][ T8462] ? poll_schedule_timeout.constprop.0+0x1e0/0x1e0 [ 77.543991][ T8462] ? poll_schedule_timeout.constprop.0+0x1e0/0x1e0 [ 77.550542][ T8462] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 77.556582][ T8462] ? find_held_lock+0x2d/0x110 [ 77.561388][ T8462] ? __might_fault+0xd3/0x180 [ 77.566104][ T8462] ? lock_downgrade+0x6e0/0x6e0 [ 77.571022][ T8462] core_sys_select+0x3c2/0x9c0 [ 77.575824][ T8462] ? do_compat_pselect+0x210/0x210 [ 77.581064][ T8462] ? poll_select_set_timeout+0xd4/0x130 [ 77.586775][ T8462] ? lock_downgrade+0x6e0/0x6e0 [ 77.591640][ T8462] ? __might_fault+0xd3/0x180 [ 77.596353][ T8462] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 77.602102][ T8462] ? timespec64_add_safe+0x189/0x210 [ 77.607412][ T8462] ? nsec_to_clock_t+0x30/0x30 [ 77.612198][ T8462] ? ktime_get_ts64+0x455/0x560 [ 77.617079][ T8462] ? lockdep_hardirqs_on+0x79/0x100 [ 77.622313][ T8462] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 77.628591][ T8462] ? ktime_get_ts64+0x3bb/0x560 [ 77.633490][ T8462] kern_select+0x13d/0x1c0 [ 77.637943][ T8462] ? core_sys_select+0x9c0/0x9c0 [ 77.642926][ T8462] __x64_sys_select+0xba/0x150 [ 77.647728][ T8462] ? syscall_enter_from_user_mode+0x27/0x70 [ 77.653647][ T8462] do_syscall_64+0x3a/0xb0 [ 77.658086][ T8462] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 77.664020][ T8462] RIP: 0033:0x7fc79acf15e3 [ 77.668456][ T8462] Code: 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 29 d1 2b 00 00 75 13 49 89 ca b8 17 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 34 c3 48 83 ec 08 e8 0b 3f 01 00 48 89 04 24 [ 77.688071][ T8462] RSP: 002b:00007ffdba4df918 EFLAGS: 00000246 ORIG_RAX: 0000000000000017 [ 77.696519][ T8462] RAX: ffffffffffffffda RBX: 000056389dc9e110 RCX: 00007fc79acf15e3 [ 77.704546][ T8462] RDX: 000056389dc9e130 RSI: 000056389dc9e110 RDI: 000000000000000b [ 77.712533][ T8462] RBP: 000056389ccc0a88 R08: 00007ffdba4df9a0 R09: 0000000000000100 [ 77.720525][ T8462] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 77.728527][ T8462] R13: 00007ffdba4df97f R14: 000056389ca7bbe7 R15: 0000000000000003 [ 77.737748][ T8462] Kernel Offset: disabled [ 77.742192][ T8462] Rebooting in 86400 seconds..