[  OK  ] Started Getty on tty2.
[  OK  ] Reached target Login Prompts.
[  OK  ] Reached target Multi-User System.
[  OK  ] Reached target Graphical Interface.
         Starting Update UTMP about System Runlevel Changes...


Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.0.56' (ECDSA) to the list of known hosts.
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syzkaller login: [  148.400209][ T7170] BUG: unable to handle page fault for address: fffff11043f9c809
[  148.407985][ T7170] #PF: supervisor read access in kernel mode
[  148.413965][ T7170] #PF: error_code(0x0000) - not-present page
[  148.420262][ T7170] PGD 0 P4D 0 
[  148.423645][ T7170] Oops: 0000 [#1] PREEMPT SMP KASAN
[  148.428838][ T7170] CPU: 0 PID: 7170 Comm: syz-executor720 Not tainted 5.6.0-syzkaller #0
[  148.437136][ T7170] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  148.447178][ T7170] RIP: 0010:get_pfnblock_flags_mask+0x5b/0x190
[  148.453341][ T7170] Code: 0d ea e0 be 0a 48 85 c9 0f 84 aa 00 00 00 48 89 f7 48 c1 ef 16 48 8d 2c f9 48 b9 00 00 00 00 00 fc ff df 49 89 e8 49 c1 e8 03 <41> 80 3c 08 00 0f 85 87 00 00 00 48 8b 7d 00 48 85 ff 74 7a 83 e3
[  148.472935][ T7170] RSP: 0000:ffffc90001697d40 EFLAGS: 00010a06
[  148.478977][ T7170] RAX: 0000000000000007 RBX: 0001fffffcf404f2 RCX: dffffc0000000000
[  148.486930][ T7170] RDX: 0000000000000002 RSI: fffffe7a02793d05 RDI: 000003fffff9e809
[  148.494894][ T7170] RBP: ffffa8821fce4048 R08: 1ffff51043f9c809 R09: ffffed1013c9e829
[  148.503673][ T7170] R10: ffff88809e4f4147 R11: ffffed1013c9e828 R12: ffff88809e4f4140
[  148.511682][ T7170] R13: ffff88809e4f4148 R14: 0000000000000000 R15: ffff88809e4f4140
[  148.520189][ T7170] FS:  000000000268a940(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
[  148.529098][ T7170] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  148.535695][ T7170] CR2: fffff11043f9c809 CR3: 000000009f94c000 CR4: 00000000001406f0
[  148.543649][ T7170] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  148.551603][ T7170] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  148.559556][ T7170] Call Trace:
[  148.562829][ T7170]  __dump_page+0x122/0x1a40
[  148.567329][ T7170]  kernel_get_mempolicy+0xe3f/0xfb0
[  148.572505][ T7170]  ? sp_free+0x60/0x60
[  148.576566][ T7170]  ? preempt_schedule_irq+0xee/0x150
[  148.581854][ T7170]  ? retint_kernel+0x2b/0x2b
[  148.586427][ T7170]  __x64_sys_get_mempolicy+0xba/0x150
[  148.591777][ T7170]  ? do_syscall_64+0x56/0x7d0
[  148.596434][ T7170]  do_syscall_64+0xf6/0x7d0
[  148.600926][ T7170]  entry_SYSCALL_64_after_hwframe+0x49/0xb3
[  148.606809][ T7170] RIP: 0033:0x441789
[  148.610694][ T7170] Code: e8 ac e8 ff ff 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 eb 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00
[  148.630299][ T7170] RSP: 002b:00007ffe6d5ec848 EFLAGS: 00000246 ORIG_RAX: 00000000000000ef
[  148.638727][ T7170] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441789
[  148.646710][ T7170] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[  148.654658][ T7170] RBP: 0000000000021c9b R08: 0000000000000003 R09: 0000000000402590
[  148.662606][ T7170] R10: 000000002073b000 R11: 0000000000000246 R12: 0000000000402500
[  148.670554][ T7170] R13: 0000000000402590 R14: 0000000000000000 R15: 0000000000000000
[  148.678544][ T7170] Modules linked in:
[  148.682441][ T7170] CR2: fffff11043f9c809
[  148.686590][ T7170] ---[ end trace bdfbd15c6d2a525e ]---
[  148.692048][ T7170] RIP: 0010:get_pfnblock_flags_mask+0x5b/0x190
[  148.698183][ T7170] Code: 0d ea e0 be 0a 48 85 c9 0f 84 aa 00 00 00 48 89 f7 48 c1 ef 16 48 8d 2c f9 48 b9 00 00 00 00 00 fc ff df 49 89 e8 49 c1 e8 03 <41> 80 3c 08 00 0f 85 87 00 00 00 48 8b 7d 00 48 85 ff 74 7a 83 e3
[  148.717796][ T7170] RSP: 0000:ffffc90001697d40 EFLAGS: 00010a06
[  148.723840][ T7170] RAX: 0000000000000007 RBX: 0001fffffcf404f2 RCX: dffffc0000000000
[  148.731789][ T7170] RDX: 0000000000000002 RSI: fffffe7a02793d05 RDI: 000003fffff9e809
[  148.739739][ T7170] RBP: ffffa8821fce4048 R08: 1ffff51043f9c809 R09: ffffed1013c9e829
[  148.747728][ T7170] R10: ffff88809e4f4147 R11: ffffed1013c9e828 R12: ffff88809e4f4140
[  148.755722][ T7170] R13: ffff88809e4f4148 R14: 0000000000000000 R15: ffff88809e4f4140
[  148.763683][ T7170] FS:  000000000268a940(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
[  148.772596][ T7170] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  148.779165][ T7170] CR2: fffff11043f9c809 CR3: 000000009f94c000 CR4: 00000000001406f0
[  148.787140][ T7170] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  148.795105][ T7170] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  148.803100][ T7170] Kernel panic - not syncing: Fatal exception
[  148.810223][ T7170] Kernel Offset: disabled
[  148.814551][ T7170] Rebooting in 86400 seconds..