Starting OpenBSD Secure Shell server... [ OK ] Started Daily apt upgrade and clean activities. [ OK ] Reached target Timers. [ OK ] Started Regular background program processing daemon. Starting Permit User Sessions... [ OK ] Started System Logging Service. [ OK ] Started Permit User Sessions. [ OK ] Started OpenBSD Secure Shell server. [ OK ] Found device /dev/ttyS0. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. [ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ 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... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Warning: Permanently added '10.128.1.52' (ECDSA) to the list of known hosts. Debian GNU/Linux 9 syzkaller ttyS0 executing program executing program executing program syzkaller login: [ 78.458384][ T37] audit: type=1400 audit(1619368771.655:8): avc: denied { execmem } for pid=8363 comm="syz-executor194" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 78.481324][ T37] audit: type=1804 audit(1619368771.665:9): pid=8364 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor194" name="/root/bus" dev="sda1" ino=13860 res=1 errno=0 executing program [ 78.504514][ T37] audit: type=1804 audit(1619368771.675:10): pid=8365 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor194" name="/root/bus" dev="sda1" ino=13860 res=1 errno=0 [ 78.531889][ T37] audit: type=1804 audit(1619368771.725:11): pid=8366 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor194" name="/root/bus" dev="sda1" ino=13860 res=1 errno=0 [ 78.557432][ T37] audit: type=1804 audit(1619368771.755:12): pid=8367 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=open_writers comm="syz-executor194" name="/root/bus" dev="sda1" ino=13860 res=1 errno=0 [ 78.580243][ C0] ------------[ cut here ]------------ [ 78.580275][ C0] WARNING: CPU: 0 PID: 37 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x31e/0x3b0 [ 78.580320][ C0] Modules linked in: [ 78.580329][ C0] CPU: 0 PID: 37 Comm: kauditd Not tainted 5.12.0-rc8-syzkaller #0 [ 78.580342][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.580350][ C0] RIP: 0010:vkms_vblank_simulate+0x31e/0x3b0 [ 78.580368][ C0] Code: 85 9e 00 00 00 48 8b 95 b8 01 00 00 4c 89 e1 bf 02 00 00 00 48 c7 c6 60 36 d8 89 e8 ac fa ef ff e9 e5 fe ff ff e8 32 5d 26 fd <0f> 0b e9 88 fd ff ff e8 46 92 69 fd e9 11 fe ff ff 4c 89 ef e8 39 [ 78.580380][ C0] RSP: 0018:ffffc90000007df0 EFLAGS: 00010046 [ 78.580392][ C0] RAX: 0000000000010001 RBX: ffff8880153ede58 RCX: 0000000000000000 [ 78.580400][ C0] RDX: ffff8880119c4200 RSI: ffffffff844ccc6e RDI: 0000000000000003 [ 78.580409][ C0] RBP: 0000000000000002 R08: 0000000000000001 R09: 0000000000000000 [ 78.580417][ C0] R10: ffffffff844cc9f3 R11: 0000000000000000 R12: ffff8880153ecd30 [ 78.580426][ C0] R13: 0000000000fe4c00 R14: ffff8880b9c26340 R15: ffffffff844cc950 [ 78.580435][ C0] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 78.580448][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 78.580457][ C0] CR2: 00007fff436bd9c8 CR3: 000000001f1a1000 CR4: 00000000001506f0 [ 78.580466][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 78.580474][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 78.580482][ C0] Call Trace: [ 78.580486][ C0] [ 78.580491][ C0] ? vkms_disable_vblank+0x20/0x20 [ 78.580507][ C0] __hrtimer_run_queues+0x609/0xe40 [ 78.580522][ C0] ? hrtimer_sleeper_start_expires+0x80/0x80 [ 78.580535][ C0] ? ktime_get_update_offsets_now+0x3eb/0x5c0 [ 78.580551][ C0] hrtimer_interrupt+0x330/0xa00 [ 78.580563][ C0] __sysvec_apic_timer_interrupt+0x146/0x540 [ 78.580581][ C0] sysvec_apic_timer_interrupt+0x8e/0xc0 [ 78.580601][ C0] [ 78.580606][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 78.580622][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 [ 78.580638][ C0] Code: f0 4d 89 03 e9 f2 fc ff ff b9 ff ff ff ff ba 08 00 00 00 4d 8b 03 48 0f bd ca 49 8b 45 00 48 63 c9 e9 64 ff ff ff 0f 1f 40 00 <65> 8b 05 19 c6 8e 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b [ 78.580650][ C0] RSP: 0018:ffffc90000e77af0 EFLAGS: 00000293 [ 78.580661][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 78.580669][ C0] RDX: ffff8880119c4200 RSI: ffffffff815b3fef RDI: 0000000000000003 [ 78.580678][ C0] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8fa9f8a7 [ 78.580686][ C0] R10: ffffffff815b3fe5 R11: 0000000000000000 R12: ffffffff84b26ee0 [ 78.580694][ C0] R13: 0000000000000200 R14: dffffc0000000000 R15: ffffc90000e77b50 [ 78.580703][ C0] ? netconsole_netdev_event+0x340/0x340 [ 78.580717][ C0] ? console_unlock+0x7f5/0xc80 [ 78.580732][ C0] ? console_unlock+0x7ff/0xc80 [ 78.580745][ C0] console_unlock+0x805/0xc80 [ 78.580759][ C0] ? devkmsg_read+0x730/0x730 [ 78.580772][ C0] ? lock_release+0x720/0x720 [ 78.580785][ C0] ? vprintk_func+0x8d/0x1e0 [ 78.580799][ C0] ? vprintk_func+0x8d/0x1e0 [ 78.580812][ C0] vprintk_emit+0x1ca/0x560 [ 78.580826][ C0] vprintk_func+0x8d/0x1e0 [ 78.580839][ C0] printk+0xba/0xed [ 78.580850][ C0] ? record_print_text.cold+0x16/0x16 [ 78.580862][ C0] ? lockdep_hardirqs_on+0x79/0x100 [ 78.580875][ C0] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 78.580889][ C0] ? ___ratelimit+0x222/0x4b0 [ 78.580904][ C0] kauditd_hold_skb.cold+0x41/0x50 [ 78.580919][ C0] ? auditd_pid_vnr+0x230/0x230 [ 78.580935][ C0] kauditd_send_queue+0x19d/0x210 [ 78.580949][ C0] ? audit_log_lost+0x180/0x180 [ 78.580963][ C0] kauditd_thread+0x7fa/0xb80 [ 78.580978][ C0] ? auditd_reset+0x170/0x170 [ 78.580992][ C0] ? finish_wait+0x260/0x260 [ 78.581004][ C0] ? lockdep_hardirqs_on+0x79/0x100 [ 78.581017][ C0] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 78.581032][ C0] ? __kthread_parkme+0x13f/0x1e0 [ 78.581047][ C0] ? auditd_reset+0x170/0x170 [ 78.581062][ C0] kthread+0x3b1/0x4a0 [ 78.581075][ C0] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 78.581090][ C0] ret_from_fork+0x1f/0x30 [ 78.581114][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 78.581124][ C0] CPU: 0 PID: 37 Comm: kauditd Not tainted 5.12.0-rc8-syzkaller #0 [ 78.581146][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.581158][ C0] Call Trace: [ 78.581166][ C0] [ 78.581181][ C0] dump_stack+0x141/0x1d7 [ 78.581205][ C0] panic+0x306/0x73d [ 78.581226][ C0] ? __warn_printk+0xf3/0xf3 [ 78.581238][ C0] ? __warn.cold+0x1a/0x44 [ 78.581250][ C0] ? vkms_vblank_simulate+0x31e/0x3b0 [ 78.581265][ C0] __warn.cold+0x35/0x44 [ 78.581277][ C0] ? vkms_vblank_simulate+0x31e/0x3b0 [ 78.581292][ C0] report_bug+0x1bd/0x210 [ 78.581307][ C0] handle_bug+0x3c/0x60 [ 78.581319][ C0] exc_invalid_op+0x14/0x40 [ 78.581330][ C0] asm_exc_invalid_op+0x12/0x20 [ 78.581344][ C0] RIP: 0010:vkms_vblank_simulate+0x31e/0x3b0 [ 78.581361][ C0] Code: 85 9e 00 00 00 48 8b 95 b8 01 00 00 4c 89 e1 bf 02 00 00 00 48 c7 c6 60 36 d8 89 e8 ac fa ef ff e9 e5 fe ff ff e8 32 5d 26 fd <0f> 0b e9 88 fd ff ff e8 46 92 69 fd e9 11 fe ff ff 4c 89 ef e8 39 [ 78.581373][ C0] RSP: 0018:ffffc90000007df0 EFLAGS: 00010046 [ 78.581384][ C0] RAX: 0000000000010001 RBX: ffff8880153ede58 RCX: 0000000000000000 [ 78.581393][ C0] RDX: ffff8880119c4200 RSI: ffffffff844ccc6e RDI: 0000000000000003 [ 78.581401][ C0] RBP: 0000000000000002 R08: 0000000000000001 R09: 0000000000000000 [ 78.581409][ C0] R10: ffffffff844cc9f3 R11: 0000000000000000 R12: ffff8880153ecd30 [ 78.581418][ C0] R13: 0000000000fe4c00 R14: ffff8880b9c26340 R15: ffffffff844cc950 [ 78.581426][ C0] ? vkms_disable_vblank+0x20/0x20 [ 78.581442][ C0] ? vkms_vblank_simulate+0xa3/0x3b0 [ 78.581457][ C0] ? vkms_vblank_simulate+0x31e/0x3b0 [ 78.581472][ C0] ? vkms_disable_vblank+0x20/0x20 [ 78.581487][ C0] __hrtimer_run_queues+0x609/0xe40 [ 78.581500][ C0] ? hrtimer_sleeper_start_expires+0x80/0x80 [ 78.581513][ C0] ? ktime_get_update_offsets_now+0x3eb/0x5c0 [ 78.581532][ C0] hrtimer_interrupt+0x330/0xa00 [ 78.581544][ C0] __sysvec_apic_timer_interrupt+0x146/0x540 [ 78.581561][ C0] sysvec_apic_timer_interrupt+0x8e/0xc0 [ 78.581575][ C0] [ 78.581579][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 78.581594][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 [ 78.581609][ C0] Code: f0 4d 89 03 e9 f2 fc ff ff b9 ff ff ff ff ba 08 00 00 00 4d 8b 03 48 0f bd ca 49 8b 45 00 48 63 c9 e9 64 ff ff ff 0f 1f 40 00 <65> 8b 05 19 c6 8e 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b [ 78.581621][ C0] RSP: 0018:ffffc90000e77af0 EFLAGS: 00000293 [ 78.581632][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 78.581640][ C0] RDX: ffff8880119c4200 RSI: ffffffff815b3fef RDI: 0000000000000003 [ 78.581648][ C0] RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8fa9f8a7 [ 78.581656][ C0] R10: ffffffff815b3fe5 R11: 0000000000000000 R12: ffffffff84b26ee0 [ 78.581664][ C0] R13: 0000000000000200 R14: dffffc0000000000 R15: ffffc90000e77b50 [ 78.581673][ C0] ? netconsole_netdev_event+0x340/0x340 [ 78.581686][ C0] ? console_unlock+0x7f5/0xc80 [ 78.581699][ C0] ? console_unlock+0x7ff/0xc80 [ 78.581712][ C0] console_unlock+0x805/0xc80 [ 78.581725][ C0] ? devkmsg_read+0x730/0x730 [ 78.581738][ C0] ? lock_release+0x720/0x720 [ 78.581751][ C0] ? vprintk_func+0x8d/0x1e0 [ 78.581764][ C0] ? vprintk_func+0x8d/0x1e0 [ 78.581777][ C0] vprintk_emit+0x1ca/0x560 [ 78.581790][ C0] vprintk_func+0x8d/0x1e0 [ 78.581804][ C0] printk+0xba/0xed [ 78.581814][ C0] ? record_print_text.cold+0x16/0x16 [ 78.581826][ C0] ? lockdep_hardirqs_on+0x79/0x100 [ 78.581838][ C0] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 78.581852][ C0] ? ___ratelimit+0x222/0x4b0 [ 78.581865][ C0] kauditd_hold_skb.cold+0x41/0x50 [ 78.581879][ C0] ? auditd_pid_vnr+0x230/0x230 [ 78.581898][ C0] kauditd_send_queue+0x19d/0x210 [ 78.581920][ C0] ? audit_log_lost+0x180/0x180 [ 78.581934][ C0] kauditd_thread+0x7fa/0xb80 [ 78.581948][ C0] ? auditd_reset+0x170/0x170 [ 78.581962][ C0] ? finish_wait+0x260/0x260 [ 78.581974][ C0] ? lockdep_hardirqs_on+0x79/0x100 [ 78.581987][ C0] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 78.582001][ C0] ? __kthread_parkme+0x13f/0x1e0 [ 78.582016][ C0] ? auditd_reset+0x170/0x170 [ 78.582030][ C0] kthread+0x3b1/0x4a0 [ 78.582051][ C0] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 78.582079][ C0] ret_from_fork+0x1f/0x30 [ 78.582682][ C0] Kernel Offset: disabled [ 79.439246][ C0] Rebooting in 86400 seconds..