Starting mcstransd: [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Start[ 67.494308][ T23] kauditd_printk_skb: 6 callbacks suppressed ing file context[ 67.494320][ T23] audit: type=1800 audit(1575439613.724:39): pid=9424 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 maintaining dae[ 67.523780][ T23] audit: type=1800 audit(1575439613.724:40): pid=9424 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 mon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 70.558908][ T23] audit: type=1400 audit(1575439616.784:41): avc: denied { map } for pid=9601 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.174' (ECDSA) to the list of known hosts. executing program [ 93.493773][ T23] audit: type=1400 audit(1575439639.724:42): avc: denied { map } for pid=9613 comm="syz-executor287" path="/root/syz-executor287060076" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 93.630615][ T9613] kasan: CONFIG_KASAN_INLINE enabled [ 93.652671][ T9613] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 93.652691][ T9613] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 93.652705][ T9613] CPU: 0 PID: 9613 Comm: syz-executor287 Not tainted 5.4.0-syzkaller #0 [ 93.652711][ T9613] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 93.652729][ T9613] RIP: 0010:do_con_write.part.0+0xa01/0x1ef0 [ 93.652743][ T9613] Code: 7e fe ff ff 45 01 ef e8 8d cc 95 fd 48 8b 85 c8 fe ff ff 80 38 00 0f 85 71 12 00 00 49 8b 9e a0 03 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 14 20 48 89 d8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 [ 93.652750][ T9613] RSP: 0018:ffffc90001d776e8 EFLAGS: 00010203 [ 93.652760][ T9613] RAX: 0000000020000001 RBX: 000000010000000e RCX: ffffffff83df2da0 [ 93.652767][ T9613] RDX: 0000000000000000 RSI: ffffffff83df2df3 RDI: 0000000000000003 [ 93.652774][ T9613] RBP: ffffc90001d77878 R08: ffff88809a546580 R09: ffff88809a546e10 [ 93.652781][ T9613] R10: fffffbfff14b0ab0 R11: ffffffff8a585587 R12: dffffc0000000000 [ 93.652789][ T9613] R13: 0000000000000000 R14: ffff88809b2b9000 R15: 00000000000007fe [ 93.652799][ T9613] FS: 0000000001678880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 93.652807][ T9613] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 93.652814][ T9613] CR2: 00007f9ea7b34000 CR3: 00000000985d9000 CR4: 00000000001406f0 [ 93.652832][ T9613] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 93.652840][ T9613] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 93.652843][ T9613] Call Trace: [ 93.652866][ T9613] ? do_con_trol+0x61b0/0x61b0 [ 93.652881][ T9613] ? n_tty_receive_buf_common+0xc3a/0x2b70 [ 93.652895][ T9613] ? do_con_write.part.0+0x1ef0/0x1ef0 [ 93.652906][ T9613] con_put_char+0xfa/0x110 [ 93.652918][ T9613] ? do_con_write.part.0+0x1ef0/0x1ef0 [ 93.652930][ T9613] ? n_tty_receive_buf_common+0xc4f/0x2b70 [ 93.652943][ T9613] ? mutex_trylock+0x2f0/0x2f0 [ 93.652959][ T9613] tty_put_char+0xc5/0x160 [ 93.652972][ T9613] ? tty_hung_up_p+0x70/0x70 [ 93.652984][ T9613] ? wait_for_completion+0x440/0x440 [ 93.652998][ T9613] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 93.653011][ T9613] ? con_write_room+0x5d/0x70 [ 93.653024][ T9613] __process_echoes+0x37c/0xa40 [ 93.653040][ T9613] n_tty_receive_buf_common+0xc77/0x2b70 [ 93.653052][ T9613] ? __might_fault+0x12b/0x1e0 [ 93.653071][ T9613] ? n_tty_receive_buf2+0x40/0x40 [ 93.653084][ T9613] n_tty_receive_buf+0x31/0x40 [ 93.653095][ T9613] tty_ioctl+0x949/0x14f0 [ 93.653107][ T9613] ? tty_vhangup+0x30/0x30 [ 93.653120][ T9613] ? tomoyo_path_number_perm+0x454/0x520 [ 93.653134][ T9613] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 93.653146][ T9613] ? tomoyo_path_number_perm+0x25e/0x520 [ 93.653159][ T9613] ? tomoyo_execute_permission+0x4a0/0x4a0 [ 93.653177][ T9613] ? ___might_sleep+0x163/0x2c0 [ 93.653191][ T9613] ? tty_vhangup+0x30/0x30 [ 93.653205][ T9613] do_vfs_ioctl+0x977/0x14e0 [ 93.653219][ T9613] ? compat_ioctl_preallocate+0x220/0x220 [ 93.653231][ T9613] ? selinux_file_mprotect+0x620/0x620 [ 93.653244][ T9613] ? kmem_cache_free+0x26b/0x320 [ 93.653257][ T9613] ? putname+0xf4/0x130 [ 93.653270][ T9613] ? do_sys_open+0x31d/0x5d0 [ 93.653283][ T9613] ? tomoyo_file_ioctl+0x23/0x30 [ 93.653296][ T9613] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 93.653312][ T9613] ? security_file_ioctl+0x8d/0xc0 [ 93.653324][ T9613] ksys_ioctl+0xab/0xd0 [ 93.653336][ T9613] __x64_sys_ioctl+0x73/0xb0 [ 93.653351][ T9613] do_syscall_64+0xfa/0x790 [ 93.653367][ T9613] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 93.653375][ T9613] RIP: 0033:0x444099 [ 93.653388][ T9613] 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 7b d8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 93.653395][ T9613] RSP: 002b:00007fffde6924f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 93.653406][ T9613] RAX: ffffffffffffffda RBX: 00000000004002e0 RCX: 0000000000444099 [ 93.653413][ T9613] RDX: 0000000020000040 RSI: 0000000000005412 RDI: 0000000000000004 [ 93.653421][ T9613] RBP: 00000000006ce018 R08: 00000000004002e0 R09: 00000000004002e0 [ 93.653428][ T9613] R10: 000000000000000f R11: 0000000000000246 R12: 0000000000401da0 [ 93.653435][ T9613] R13: 0000000000401e30 R14: 0000000000000000 R15: 0000000000000000 [ 93.653444][ T9613] Modules linked in: [ 93.653462][ T9613] ---[ end trace 7e8070a124b9d12d ]--- [ 93.653475][ T9613] RIP: 0010:do_con_write.part.0+0xa01/0x1ef0 [ 93.653486][ T9613] Code: 7e fe ff ff 45 01 ef e8 8d cc 95 fd 48 8b 85 c8 fe ff ff 80 38 00 0f 85 71 12 00 00 49 8b 9e a0 03 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 14 20 48 89 d8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 [ 93.653493][ T9613] RSP: 0018:ffffc90001d776e8 EFLAGS: 00010203 [ 93.653503][ T9613] RAX: 0000000020000001 RBX: 000000010000000e RCX: ffffffff83df2da0 [ 93.653510][ T9613] RDX: 0000000000000000 RSI: ffffffff83df2df3 RDI: 0000000000000003 [ 93.653518][ T9613] RBP: ffffc90001d77878 R08: ffff88809a546580 R09: ffff88809a546e10 [ 93.653525][ T9613] R10: fffffbfff14b0ab0 R11: ffffffff8a585587 R12: dffffc0000000000 [ 93.653532][ T9613] R13: 0000000000000000 R14: ffff88809b2b9000 R15: 00000000000007fe [ 93.653542][ T9613] FS: 0000000001678880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 93.653550][ T9613] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 93.653557][ T9613] CR2: 00007f9ea7b34000 CR3: 00000000985d9000 CR4: 00000000001406f0 [ 93.653569][ T9613] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 93.653576][ T9613] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 93.653582][ T9613] Kernel panic - not syncing: Fatal exception [ 93.654998][ T9613] Kernel Offset: disabled [ 94.204262][ T9613] Rebooting in 86400 seconds..