[ OK ] Started Getty on tty6. [ 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 '10.128.0.16' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 43.531164][ T6789] L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/l1tf.html for details. [ 43.566167][ T6789] general protection fault, probably for non-canonical address 0xdffffc0000000013: 0000 [#1] PREEMPT SMP KASAN [ 43.578060][ T6789] KASAN: null-ptr-deref in range [0x0000000000000098-0x000000000000009f] [ 43.586455][ T6789] CPU: 0 PID: 6789 Comm: syz-executor028 Not tainted 5.7.0-syzkaller #0 [ 43.594831][ T6789] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.604872][ T6789] RIP: 0010:__apic_accept_irq+0x48/0x710 [ 43.610476][ T6789] Code: 24 04 41 89 f6 48 89 fb 48 bd 00 00 00 00 00 fc ff df e8 9b 62 62 00 48 89 5c 24 18 4c 8d bb 98 00 00 00 4d 89 fc 49 c1 ec 03 <41> 80 3c 2c 00 74 08 4c 89 ff e8 a9 46 a1 00 49 8b 07 48 89 44 24 [ 43.630056][ T6789] RSP: 0018:ffffc900019778b8 EFLAGS: 00010202 [ 43.636093][ T6789] RAX: ffffffff81124095 RBX: 0000000000000000 RCX: ffff8880a8f9a0c0 [ 43.644044][ T6789] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 43.652156][ T6789] RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000 [ 43.660235][ T6789] R10: 0000000000000003 R11: ffff8880a8f9a0c0 R12: 0000000000000013 [ 43.668180][ T6789] R13: ffff8880a91f7e88 R14: 0000000000000000 R15: 0000000000000098 [ 43.676346][ T6789] FS: 00000000013cb880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 43.685360][ T6789] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.691920][ T6789] CR2: 00007faef00666c0 CR3: 00000000a33e0000 CR4: 00000000001426f0 [ 43.699876][ T6789] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 43.707824][ T6789] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 43.715764][ T6789] Call Trace: [ 43.719030][ T6789] ? kvm_write_guest_offset_cached+0x406/0x570 [ 43.725154][ T6789] kvm_arch_async_page_present+0x49a/0x650 [ 43.732144][ T6789] ? do_raw_spin_unlock+0x134/0x8d0 [ 43.737315][ T6789] kvm_check_async_pf_completion+0x1f0/0x360 [ 43.743265][ T6789] vcpu_enter_guest+0x3f3d/0x89a0 [ 43.748257][ T6789] ? __kasan_slab_free+0x144/0x170 [ 43.753428][ T6789] ? __kasan_slab_free+0x114/0x170 [ 43.758524][ T6789] ? __lock_acquire+0x116c/0x2c30 [ 43.763533][ T6789] ? __lock_acquire+0x116c/0x2c30 [ 43.768542][ T6789] ? lock_acquire+0x169/0x480 [ 43.773251][ T6789] ? rcu_lock_acquire+0x9/0x30 [ 43.777989][ T6789] vcpu_run+0x352/0xcd0 [ 43.782120][ T6789] kvm_arch_vcpu_ioctl_run+0x451/0x8f0 [ 43.787552][ T6789] kvm_vcpu_ioctl+0x64f/0xa60 [ 43.792241][ T6789] ? check_preemption_disabled+0xb0/0x240 [ 43.799154][ T6789] ? debug_smp_processor_id+0x5/0x20 [ 43.804422][ T6789] ? kvm_vm_ioctl_get_dirty_log+0x650/0x650 [ 43.810282][ T6789] __se_sys_ioctl+0xf9/0x160 [ 43.814931][ T6789] do_syscall_64+0xf3/0x1b0 [ 43.819406][ T6789] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 43.825267][ T6789] RIP: 0033:0x440299 [ 43.829129][ T6789] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 43.848700][ T6789] RSP: 002b:00007fff798b3338 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 43.857092][ T6789] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440299 [ 43.865040][ T6789] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000005 [ 43.873080][ T6789] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 43.881031][ T6789] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000401b20 [ 43.889069][ T6789] R13: 0000000000401bb0 R14: 0000000000000000 R15: 0000000000000000 [ 43.897018][ T6789] Modules linked in: [ 43.901973][ T6789] ---[ end trace 0012f5760ea23444 ]--- [ 43.907901][ T6789] RIP: 0010:__apic_accept_irq+0x48/0x710 [ 43.914140][ T6789] Code: 24 04 41 89 f6 48 89 fb 48 bd 00 00 00 00 00 fc ff df e8 9b 62 62 00 48 89 5c 24 18 4c 8d bb 98 00 00 00 4d 89 fc 49 c1 ec 03 <41> 80 3c 2c 00 74 08 4c 89 ff e8 a9 46 a1 00 49 8b 07 48 89 44 24 [ 43.934153][ T6789] RSP: 0018:ffffc900019778b8 EFLAGS: 00010202 [ 43.940195][ T6789] RAX: ffffffff81124095 RBX: 0000000000000000 RCX: ffff8880a8f9a0c0 [ 43.948384][ T6789] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 43.956440][ T6789] RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000 [ 43.964436][ T6789] R10: 0000000000000003 R11: ffff8880a8f9a0c0 R12: 0000000000000013 [ 43.972389][ T6789] R13: ffff8880a91f7e88 R14: 0000000000000000 R15: 0000000000000098 [ 43.980483][ T6789] FS: 00000000013cb880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 43.989445][ T6789] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.996062][ T6789] CR2: 00007f42a403e078 CR3: 00000000a33e0000 CR4: 00000000001426e0 [ 44.004077][ T6789] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 44.012074][ T6789] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 44.020068][ T6789] Kernel panic - not syncing: Fatal exception [ 44.027489][ T6789] Kernel Offset: disabled [ 44.031801][ T6789] Rebooting in 86400 seconds..