[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 15.924296] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 18.273221] random: sshd: uninitialized urandom read (32 bytes read) [ 18.492564] random: sshd: uninitialized urandom read (32 bytes read) [ 19.163507] random: sshd: uninitialized urandom read (32 bytes read) [ 19.302521] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.12' (ECDSA) to the list of known hosts. [ 24.944948] random: sshd: uninitialized urandom read (32 bytes read) [ 25.029080] IPVS: ftp: loaded support on port[0] = 21 [ 25.722021] kasan: CONFIG_KASAN_INLINE enabled [ 25.726622] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 25.733963] general protection fault: 0000 [#1] SMP KASAN [ 25.739501] CPU: 0 PID: 4819 Comm: 6_ Not tainted 4.18.0-rc3+ #45 [ 25.746924] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.756266] RIP: 0010:cpuacct_account_field+0x13c/0x3b0 [ 25.761616] Code: da 45 08 00 85 c0 74 0d 80 3d 71 01 3c 08 00 0f 84 79 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7d 10 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 49 02 00 00 4d 8b 65 10 49 81 fc 80 a4 f7 88 0f [ 25.780738] RSP: 0018:ffff8801dae078e8 EFLAGS: 00010806 [ 25.786083] RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: 0000000000000000 [ 25.793332] RDX: 1a0ee071147837e2 RSI: 0000000000000000 RDI: d0770388a3c1bf10 [ 25.800586] RBP: ffff8801dae07978 R08: 0000000000000000 R09: 0000000000000001 [ 25.807836] R10: ffff8801dae07950 R11: 0000000000000000 R12: ffff8801abb02740 [ 25.815085] R13: d0770388a3c1bf00 R14: 1ffff1003b5c0f1e R15: 00000000000f4240 [ 25.822341] FS: 00007f3e2d5eb700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 25.830544] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.836404] CR2: 00007f3e2d5eae78 CR3: 0000000008e6a000 CR4: 00000000001406f0 [ 25.843655] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.850911] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.858156] Call Trace: [ 25.860727] [ 25.862879] ? cpuacct_charge+0x5d0/0x5d0 [ 25.867023] ? tick_sched_timer+0x1e/0x130 [ 25.871243] ? lock_downgrade+0x8f0/0x8f0 [ 25.875390] account_system_index_time+0x1dc/0x5c0 [ 25.880296] ? account_guest_time+0x460/0x460 [ 25.884768] ? __asan_loadN+0x7/0x20 [ 25.888487] ? kvm_clock_read+0x25/0x30 [ 25.892443] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 25.897439] account_system_time+0x7f/0xb0 [ 25.901650] account_process_tick+0x76/0x240 [ 25.906034] ? do_raw_spin_unlock+0xa7/0x2f0 [ 25.910424] update_process_times+0x21/0x70 [ 25.914731] tick_sched_handle+0x9f/0x180 [ 25.918855] tick_sched_timer+0x45/0x130 [ 25.923069] __hrtimer_run_queues+0x3eb/0x10c0 [ 25.927642] ? tick_sched_do_timer+0x1a0/0x1a0 [ 25.932203] ? hrtimer_start_range_ns+0xd20/0xd20 [ 25.937026] ? pvclock_read_flags+0x160/0x160 [ 25.941496] ? kvm_clock_read+0x25/0x30 [ 25.945447] ? kvm_clock_read+0x25/0x30 [ 25.949401] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 25.954402] ? ktime_get_update_offsets_now+0x3db/0x5d0 [ 25.959749] ? do_timer+0x50/0x50 [ 25.963188] ? kasan_check_read+0x11/0x20 [ 25.967311] ? rcu_nmi_exit+0xe0/0x2d0 [ 25.971180] ? do_raw_spin_lock+0xc1/0x200 [ 25.975408] hrtimer_interrupt+0x2f3/0x750 [ 25.979622] smp_apic_timer_interrupt+0x165/0x730 [ 25.984450] ? smp_call_function_single_interrupt+0x660/0x660 [ 25.990320] ? _raw_spin_unlock+0x22/0x30 [ 25.994447] ? handle_edge_irq+0x330/0x870 [ 25.998665] ? task_prio+0x50/0x50 [ 26.002189] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 26.007012] apic_timer_interrupt+0xf/0x20 [ 26.011228] [ 26.013438] Modules linked in: [ 26.016612] Dumping ftrace buffer: [ 26.020131] (ftrace buffer empty) [ 26.023826] ---[ end trace 4905576d3e2bfcdc ]--- [ 26.028564] RIP: 0010:cpuacct_account_field+0x13c/0x3b0 [ 26.033899] Code: da 45 08 00 85 c0 74 0d 80 3d 71 01 3c 08 00 0f 84 79 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7d 10 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 49 02 00 00 4d 8b 65 10 49 81 fc 80 a4 f7 88 0f [ 26.053011] RSP: 0018:ffff8801dae078e8 EFLAGS: 00010806 [ 26.058350] RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: 0000000000000000 [ 26.065597] RDX: 1a0ee071147837e2 RSI: 0000000000000000 RDI: d0770388a3c1bf10 [ 26.072841] RBP: ffff8801dae07978 R08: 0000000000000000 R09: 0000000000000001 [ 26.080093] R10: ffff8801dae07950 R11: 0000000000000000 R12: ffff8801abb02740 [ 26.087346] R13: d0770388a3c1bf00 R14: 1ffff1003b5c0f1e R15: 00000000000f4240 [ 26.094593] FS: 00007f3e2d5eb700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 26.102800] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.108679] CR2: 00007f3e2d5eae78 CR3: 0000000008e6a000 CR4: 00000000001406f0 [ 26.115934] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.123189] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.130444] Kernel panic - not syncing: Fatal exception in interrupt [ 26.137287] Dumping ftrace buffer: [ 26.140801] (ftrace buffer empty) [ 26.144493] Kernel Offset: disabled [ 26.148106] Rebooting in 86400 seconds..