[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.3' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 551.790037][ T28] audit: type=1400 audit(1599711842.249:8): avc: denied { execmem } for pid=6848 comm="syz-executor747" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 625.563266][T10412] ------------[ cut here ]------------ [ 625.568952][ C0] BUG: unable to handle page fault for address: ffffffff65f880b2 [ 625.568958][ C0] #PF: supervisor read access in kernel mode [ 625.568961][ C0] #PF: error_code(0x0000) - not-present page [ 625.568964][ C0] PGD 9a90067 P4D 9a90067 PUD 0 [ 625.569026][ C0] general protection fault, probably for non-canonical address 0xe00edc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 625.569032][ C0] KASAN: maybe wild-memory-access in range [0x0077000000000000-0x0077000000000007] [ 625.569040][ C0] CPU: 0 PID: 10412 Comm: syz-executor747 Not tainted 5.9.0-rc4-syzkaller #0 [ 625.569044][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 625.569082][ C0] RIP: 0010:no_context+0x52d/0x9f0 [ 625.569089][ C0] Code: c1 e0 2a 48 c1 ea 03 80 3c 02 00 0f 85 41 04 00 00 48 8b 44 24 08 48 8b 58 18 b8 ff ff 37 00 48 c1 e0 2a 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 35 04 00 00 48 8b 1b bf 9d 6e ac 57 48 89 de e8 [ 625.569093][ C0] RSP: 0018:ffffc90000007a18 EFLAGS: 00010006 [ 625.569098][ C0] RAX: dffffc0000000000 RBX: 0077000000000000 RCX: 0000000000000000 [ 625.569103][ C0] RDX: 000ee00000000000 RSI: ffffffff81343401 RDI: ffff88800012c418 [ 625.569107][ C0] RBP: ffffc90000007bd8 R08: 0000000000000000 R09: ffff8880ae620f8b [ 625.569110][ C0] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff65f880b2 [ 625.569114][ C0] R13: 0000000000000000 R14: 0000000000000082 R15: 0000000000000000 [ 625.569120][ C0] FS: 00007f098cfcb700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 625.569124][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 625.569128][ C0] CR2: ffffffff65f880b2 CR3: 0000000000098000 CR4: 00000000001506f0 [ 625.569135][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 625.569138][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 625.569140][ C0] Call Trace: [ 625.569167][ C0] [ 625.569175][ C0] ? pgtable_bad+0x90/0x90 [ 625.569185][ C0] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 625.569191][ C0] ? mark_lock+0xbc/0x1710 [ 625.569196][ C0] ? mark_lock+0xbc/0x1710 [ 625.569203][ C0] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 625.569211][ C0] __bad_area_nosemaphore+0xa9/0x4f0 [ 625.569219][ C0] do_kern_addr_fault+0x5b/0x6f [ 625.569305][ C0] exc_page_fault+0x168/0x190 [ 625.569334][ C0] asm_exc_page_fault+0x1e/0x30 [ 625.569341][ C0] RIP: 0010:task_tick_fair+0x2f9/0xbb0 [ 625.569347][ C0] Code: 00 00 00 fc ff df 49 8d 7d 2c 48 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 f1 05 00 00 <41> 8b 45 2c 85 c0 0f 84 fa 03 00 00 48 b8 00 00 00 00 00 fc ff df [ 625.569351][ C0] RSP: 0018:ffffc90000007c80 EFLAGS: 00010046 [ 625.569355][ C0] RAX: 0000000000000005 RBX: 0000000000000770 RCX: ffffffff81645aec [ 625.569359][ C0] RDX: 0000000000000000 RSI: ffffffff81645bb5 RDI: ffffffff65f880b2 [ 625.569363][ C0] RBP: ffffffff8987da80 R08: 0000000000000000 R09: ffff88800012d6f0 [ 625.569367][ C0] R10: 0000000000049596 R11: 0000000000000001 R12: 0000000000035e00 [ 625.569371][ C0] R13: ffffffff65f88086 R14: 000000000122f30a R15: 0000000000000000 [ 625.569380][ C0] ? hrtimer_active+0xcc/0x210 [ 625.569386][ C0] ? hrtimer_active+0x195/0x210 [ 625.569394][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 625.569399][ C0] ? dequeue_task_fair+0xe40/0xe40 [ 625.569406][ C0] ? lock_is_held_type+0xbb/0xf0 [ 625.569413][ C0] scheduler_tick+0x13a/0x400 [ 625.569421][ C0] update_process_times+0x49/0xa0 [ 625.569428][ C0] tick_sched_handle+0x9b/0x180 [ 625.569434][ C0] tick_sched_timer+0x1d1/0x2a0 [ 625.569441][ C0] __hrtimer_run_queues+0x1d5/0xfc0 [ 625.569447][ C0] ? can_stop_idle_tick+0x290/0x290 [ 625.569456][ C0] ? hrtimer_sleeper_start_expires+0x80/0x80 [ 625.569463][ C0] ? ktime_get_update_offsets_now+0x1c4/0x250 [ 625.569471][ C0] hrtimer_interrupt+0x32a/0x930 [ 625.569484][ C0] __sysvec_apic_timer_interrupt+0x142/0x5e0 [ 625.569494][ C0] asm_call_on_stack+0xf/0x20 [ 625.569497][ C0] [ 625.569498][ C0] Modules linked in: [ 625.569508][ C0] ---[ end trace 96c464a626b9d048 ]--- [ 625.569514][ C0] RIP: 0010:no_context+0x52d/0x9f0 [ 625.569520][ C0] Code: c1 e0 2a 48 c1 ea 03 80 3c 02 00 0f 85 41 04 00 00 48 8b 44 24 08 48 8b 58 18 b8 ff ff 37 00 48 c1 e0 2a 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 35 04 00 00 48 8b 1b bf 9d 6e ac 57 48 89 de e8 [ 625.569524][ C0] RSP: 0018:ffffc90000007a18 EFLAGS: 00010006 [ 625.569529][ C0] RAX: dffffc0000000000 RBX: 0077000000000000 RCX: 0000000000000000 [ 625.569533][ C0] RDX: 000ee00000000000 RSI: ffffffff81343401 RDI: ffff88800012c418 [ 625.569536][ C0] RBP: ffffc90000007bd8 R08: 0000000000000000 R09: ffff8880ae620f8b [ 625.569540][ C0] R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff65f880b2 [ 625.569544][ C0] R13: 0000000000000000 R14: 0000000000000082 R15: 0000000000000000 [ 625.569549][ C0] FS: 00007f098cfcb700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 625.569554][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 625.569558][ C0] CR2: ffffffff65f880b2 CR3: 0000000000098000 CR4: 00000000001506f0 [ 625.569563][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 625.569567][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 625.569570][ C0] Kernel panic - not syncing: Fatal exception in interrupt [ 625.570929][ C0] Kernel Offset: disabled [ 626.080617][ C0] Rebooting in 86400 seconds..