[ 82.812341][ T27] audit: type=1800 audit(1579155066.448:26): pid=9611 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 83.886624][ T27] kauditd_printk_skb: 2 callbacks suppressed [ 83.886635][ T27] audit: type=1800 audit(1579155067.548:29): pid=9611 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 83.913039][ T27] audit: type=1800 audit(1579155067.548:30): pid=9611 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.103' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 93.874805][ T9765] BUG: unable to handle page fault for address: 000000010000000e [ 93.874814][ T9765] #PF: supervisor write access in kernel mode [ 93.874821][ T9765] #PF: error_code(0x0002) - not-present page [ 93.874826][ T9765] PGD a4a0c067 P4D a4a0c067 PUD 0 [ 93.874844][ T9765] Oops: 0002 [#1] PREEMPT SMP KASAN [ 93.874856][ T9765] CPU: 1 PID: 9765 Comm: syz-executor742 Not tainted 5.5.0-rc6-syzkaller #0 [ 93.874864][ T9765] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 93.874882][ T9765] RIP: 0010:csi_J+0x2bf/0xb00 [ 93.874896][ T9765] Code: ff df 43 8d 4c 2d 00 48 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 01 0f 8e af 06 00 00 0f b7 83 c8 03 00 00 d1 e9 4c 89 e7 66 ab 48 89 df e8 46 f2 ff ff 31 ff 41 89 c6 89 c6 e8 5a d5 88 [ 93.874903][ T9765] RSP: 0018:ffffc90001f8f850 EFLAGS: 00010202 [ 93.874913][ T9765] RAX: 0000000000000720 RBX: ffff888094147000 RCX: 0000000000000001 [ 93.874921][ T9765] RDX: 1ffff11012828e79 RSI: ffffffff83ec2116 RDI: 000000010000000e [ 93.874929][ T9765] RBP: ffffc90001f8f890 R08: ffff88809e1f65c0 R09: ffff88809e1f6e50 [ 93.874936][ T9765] R10: fffffbfff14f6998 R11: ffffffff8a7b4cc7 R12: 000000010000000e [ 93.874943][ T9765] R13: 7fffffff80000001 R14: 0000000000000011 R15: 0000000000000000 [ 93.874952][ T9765] FS: 0000000000000000(0000) GS:ffff8880ae900000(0063) knlGS:0000000008dd9840 [ 93.874960][ T9765] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 93.874968][ T9765] CR2: 000000010000000e CR3: 0000000096055000 CR4: 00000000001406e0 [ 93.874985][ T9765] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 93.874997][ T9765] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 93.875001][ T9765] Call Trace: [ 93.875018][ T9765] ? __atomic_notifier_call_chain+0xd6/0x1a0 [ 93.875034][ T9765] do_con_trol+0x50cc/0x61b0 [ 93.875050][ T9765] ? reset_palette+0x190/0x190 [ 93.875064][ T9765] ? __kasan_check_read+0x11/0x20 [ 93.875079][ T9765] ? __atomic_notifier_call_chain+0xf8/0x1a0 [ 93.875096][ T9765] do_con_write.part.0+0xfd9/0x1ef0 [ 93.875118][ T9765] ? do_con_trol+0x61b0/0x61b0 [ 93.875132][ T9765] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 93.875141][ T9765] ? add_wait_queue+0x112/0x170 [ 93.875152][ T9765] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 93.875168][ T9765] ? trace_hardirqs_on+0x67/0x240 [ 93.875184][ T9765] con_write+0x46/0xd0 [ 93.875201][ T9765] n_tty_write+0x40e/0x1080 [ 93.875222][ T9765] ? n_tty_read+0x1bf0/0x1bf0 [ 93.875235][ T9765] ? prepare_to_wait_exclusive+0x320/0x320 [ 93.875253][ T9765] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 93.875268][ T9765] ? _copy_from_user+0x12c/0x1a0 [ 93.875283][ T9765] tty_write+0x496/0x7f0 [ 93.875300][ T9765] ? n_tty_read+0x1bf0/0x1bf0 [ 93.875314][ T9765] __vfs_write+0x8a/0x110 [ 93.875326][ T9765] ? put_tty_driver+0x20/0x20 [ 93.875338][ T9765] vfs_write+0x268/0x5d0 [ 93.875351][ T9765] ksys_write+0x14f/0x290 [ 93.875364][ T9765] ? __ia32_sys_read+0xb0/0xb0 [ 93.875379][ T9765] ? do_fast_syscall_32+0xd1/0xe16 [ 93.875392][ T9765] ? entry_SYSENTER_compat+0x70/0x7f [ 93.875404][ T9765] ? do_fast_syscall_32+0xd1/0xe16 [ 93.875419][ T9765] __ia32_sys_write+0x71/0xb0 [ 93.875436][ T9765] do_fast_syscall_32+0x27b/0xe16 [ 93.875453][ T9765] entry_SYSENTER_compat+0x70/0x7f [ 93.875463][ T9765] RIP: 0023:0xf7f77a39 [ 93.875476][ T9765] Code: 00 00 00 89 d3 5b 5e 5f 5d c3 b8 80 96 98 00 eb c4 8b 04 24 c3 8b 1c 24 c3 8b 34 24 c3 8b 3c 24 c3 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 93.875483][ T9765] RSP: 002b:00000000fff22c0c EFLAGS: 00000246 ORIG_RAX: 0000000000000004 [ 93.875496][ T9765] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000020000000 [ 93.875504][ T9765] RDX: 0000000000000078 RSI: 00000000080eb080 RDI: 00000000fff22c60 [ 93.875511][ T9765] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 93.875519][ T9765] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 93.875527][ T9765] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 93.875538][ T9765] Modules linked in: [ 93.875548][ T9765] CR2: 000000010000000e [ 93.888058][ T9765] ---[ end trace d74e64f14d5213c7 ]--- [ 93.888080][ T9765] RIP: 0010:csi_J+0x2bf/0xb00 [ 93.888094][ T9765] Code: ff df 43 8d 4c 2d 00 48 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 01 0f 8e af 06 00 00 0f b7 83 c8 03 00 00 d1 e9 4c 89 e7 66 ab 48 89 df e8 46 f2 ff ff 31 ff 41 89 c6 89 c6 e8 5a d5 88 [ 93.888108][ T9765] RSP: 0018:ffffc90001f8f850 EFLAGS: 00010202 [ 93.888118][ T9765] RAX: 0000000000000720 RBX: ffff888094147000 RCX: 0000000000000001 [ 93.888126][ T9765] RDX: 1ffff11012828e79 RSI: ffffffff83ec2116 RDI: 000000010000000e [ 93.888134][ T9765] RBP: ffffc90001f8f890 R08: ffff88809e1f65c0 R09: ffff88809e1f6e50 [ 93.888142][ T9765] R10: fffffbfff14f6998 R11: ffffffff8a7b4cc7 R12: 000000010000000e [ 93.888149][ T9765] R13: 7fffffff80000001 R14: 0000000000000011 R15: 0000000000000000 [ 93.888160][ T9765] FS: 0000000000000000(0000) GS:ffff8880ae900000(0063) knlGS:0000000008dd9840 [ 93.888168][ T9765] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 93.888175][ T9765] CR2: 00007ff848d8a000 CR3: 0000000096055000 CR4: 00000000001406e0 [ 93.888186][ T9765] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 93.888194][ T9765] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 93.888201][ T9765] Kernel panic - not syncing: Fatal exception [ 93.889798][ T9765] Kernel Offset: disabled [ 94.412552][ T9765] Rebooting in 86400 seconds..