[ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.15.199' (ECDSA) to the list of known hosts. 2020/08/04 22:52:39 fuzzer started 2020/08/04 22:52:39 connecting to host at 10.128.0.105:35653 2020/08/04 22:52:39 checking machine... 2020/08/04 22:52:39 checking revisions... 2020/08/04 22:52:39 testing simple program... syzkaller login: [ 34.611788][ T8752] IPVS: ftp: loaded support on port[0] = 21 2020/08/04 22:52:39 building call list... [ 34.983267][ T3628] tipc: TX() has been purged, node left! [ 35.224038][ T0] ------------[ cut here ]------------ [ 35.229614][ T0] WARNING: CPU: 0 PID: 0 at kernel/time/tick-sched.c:1024 tick_nohz_idle_enter+0x157/0x170 [ 35.239627][ T0] Kernel panic - not syncing: panic_on_warn set ... [ 35.246224][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.8.0-syzkaller #0 [ 35.253900][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.263956][ T0] Call Trace: [ 35.267233][ T0] dump_stack+0x16e/0x25d [ 35.271543][ T0] panic+0x20c/0x69a [ 35.275427][ T0] ? tick_nohz_idle_enter+0x157/0x170 [ 35.280783][ T0] __warn+0x211/0x240 [ 35.284756][ T0] ? tick_nohz_idle_enter+0x157/0x170 [ 35.290113][ T0] report_bug+0x153/0x1d0 [ 35.294428][ T0] handle_bug+0x4d/0x90 [ 35.298569][ T0] exc_invalid_op+0x16/0x70 [ 35.303061][ T0] asm_exc_invalid_op+0x12/0x20 [ 35.307899][ T0] RIP: 0010:tick_nohz_idle_enter+0x157/0x170 [ 35.313863][ T0] Code: c7 06 00 74 33 e8 29 f3 07 00 fb 66 0f 1f 44 00 00 5b 41 5c 41 5e 41 5f c3 e8 15 f3 07 00 0f 0b e9 71 ff ff ff e8 09 f3 07 00 <0f> 0b e9 f1 fe ff ff e8 fd f2 07 00 0f 0b e8 f6 f2 07 00 0f 0b 0f [ 35.333449][ T0] RSP: 0018:ffffffff88003e68 EFLAGS: 00010293 [ 35.339502][ T0] RAX: ffffffff814418f7 RBX: 0000000000000000 RCX: ffffffff8807e9c0 [ 35.347631][ T0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 35.355588][ T0] RBP: ffffffff8807e9c0 R08: ffffffff814417db R09: 0000ffff88619eb7 [ 35.363573][ T0] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 [ 35.371789][ T0] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 35.379763][ T0] ? tick_nohz_idle_enter+0x3b/0x170 [ 35.385042][ T0] ? tick_nohz_idle_enter+0x157/0x170 [ 35.390425][ T0] ? tick_nohz_idle_enter+0x157/0x170 [ 35.395780][ T0] do_idle+0x36/0x330 [ 35.399797][ T0] cpu_startup_entry+0x15/0x20 [ 35.404557][ T0] rest_init+0x2e5/0x2f0 [ 35.408790][ T0] ? time_init+0xc/0xc [ 35.412841][ T0] arch_call_rest_init+0xa/0xb [ 35.417638][ T0] start_kernel+0x617/0x6e4 [ 35.422132][ T0] secondary_startup_64+0xa4/0xb0 [ 35.428405][ T0] Kernel Offset: disabled [ 35.432773][ T0] Rebooting in 86400 seconds..