[ 43.782005] audit: type=1800 audit(1575910392.234:31): pid=7571 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2469 res=0 [ 43.811485] audit: type=1800 audit(1575910392.234:32): pid=7571 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2450 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.45' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 52.725162] kauditd_printk_skb: 3 callbacks suppressed [ 52.725176] audit: type=1400 audit(1575910401.234:36): avc: denied { map } for pid=7753 comm="syz-executor585" path="/root/syz-executor585688742" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 52.823063] BUG: unable to handle kernel paging request at 000000010000000e [ 52.823070] PGD 8097b067 P4D 8097b067 PUD 0 [ 52.823090] Oops: 0002 [#1] PREEMPT SMP KASAN [ 52.823104] CPU: 0 PID: 7753 Comm: syz-executor585 Not tainted 4.19.88-syzkaller #0 [ 52.823110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.823133] RIP: 0010:do_con_trol+0x39e6/0x6070 [ 52.823144] Code: 08 2c 01 0f 8e 81 13 00 00 4c 8b bd 08 ff ff ff 48 63 db 44 89 e9 41 0f b7 84 24 c8 03 00 00 48 01 db d1 e9 49 01 df 4c 89 ff 66 ab 49 8d bc 24 78 04 00 00 b8 ff ff 37 00 48 89 fa 48 c1 e0 [ 52.823150] RSP: 0018:ffff88809b8c7780 EFLAGS: 00010202 [ 52.823158] RAX: 0000000000000720 RBX: 0000000000000000 RCX: 0000000000000001 [ 52.823165] RDX: 1ffff1101400c879 RSI: ffffffff83aedde9 RDI: 000000010000000e [ 52.823173] RBP: ffff88809b8c78a0 R08: ffff88807f8fe500 R09: 0000000000000005 [ 52.823181] R10: ffffed1015d04732 R11: ffff8880ae823993 R12: ffff8880a0064000 [ 52.823187] R13: 0000000000000002 R14: 0000000000000001 R15: 000000010000000e [ 52.823197] FS: 00000000008b1880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 52.823204] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.823211] CR2: 000000010000000e CR3: 00000000a4cf1000 CR4: 00000000001406f0 [ 52.823222] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.823229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.823233] Call Trace: [ 52.823251] ? reset_palette+0x190/0x190 [ 52.823267] ? kasan_check_read+0x11/0x20 [ 52.823285] ? __atomic_notifier_call_chain+0xfd/0x1a0 [ 52.823301] do_con_write.part.0+0xfd5/0x1eb0 [ 52.823324] ? do_con_trol+0x6070/0x6070 [ 52.823339] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 52.823353] ? add_wait_queue+0x112/0x170 [ 52.823365] ? _raw_spin_unlock_irqrestore+0x6b/0xe0 [ 52.823380] ? trace_hardirqs_on+0x67/0x220 [ 52.823396] con_write+0x46/0xd0 [ 52.823410] n_tty_write+0x3f9/0x10f0 [ 52.823430] ? process_echoes+0x170/0x170 [ 52.823445] ? do_wait_intr_irq+0x2b0/0x2b0 [ 52.823461] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 52.823477] ? _copy_from_user+0xdd/0x150 [ 52.823495] tty_write+0x458/0x7a0 [ 52.823509] ? process_echoes+0x170/0x170 [ 52.823525] __vfs_write+0x114/0x810 [ 52.823539] ? tty_read+0x2a0/0x2a0 [ 52.823550] ? kernel_read+0x120/0x120 [ 52.823562] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 52.823575] ? __inode_security_revalidate+0xda/0x120 [ 52.823589] ? avc_policy_seqno+0xd/0x70 [ 52.823600] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 52.823624] ? selinux_file_permission+0x92/0x550 [ 52.823638] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 52.823651] ? security_file_permission+0x89/0x230 [ 52.823663] ? rw_verify_area+0x118/0x360 [ 52.823676] vfs_write+0x20c/0x560 [ 52.823691] ksys_write+0x14f/0x2d0 [ 52.823703] ? __ia32_sys_read+0xb0/0xb0 [ 52.823718] ? do_syscall_64+0x26/0x620 [ 52.823727] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 52.823737] ? do_syscall_64+0x26/0x620 [ 52.823752] __x64_sys_write+0x73/0xb0 [ 52.823765] do_syscall_64+0xfd/0x620 [ 52.823779] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 52.823789] RIP: 0033:0x4404f9 [ 52.823800] 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 5b 14 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 52.823806] RSP: 002b:00007fffa2be5538 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 52.823818] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004404f9 [ 52.823825] RDX: 0000000000000078 RSI: 0000000020000200 RDI: 0000000000000004 [ 52.823833] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 52.823839] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401de0 [ 52.823845] R13: 0000000000401e70 R14: 0000000000000000 R15: 0000000000000000 [ 52.823855] Modules linked in: [ 52.823866] CR2: 000000010000000e [ 52.823881] ---[ end trace aa1d2f8c28a58c33 ]--- [ 52.823894] RIP: 0010:do_con_trol+0x39e6/0x6070 [ 52.823904] Code: 08 2c 01 0f 8e 81 13 00 00 4c 8b bd 08 ff ff ff 48 63 db 44 89 e9 41 0f b7 84 24 c8 03 00 00 48 01 db d1 e9 49 01 df 4c 89 ff 66 ab 49 8d bc 24 78 04 00 00 b8 ff ff 37 00 48 89 fa 48 c1 e0 [ 52.823910] RSP: 0018:ffff88809b8c7780 EFLAGS: 00010202 [ 52.823918] RAX: 0000000000000720 RBX: 0000000000000000 RCX: 0000000000000001 [ 52.823925] RDX: 1ffff1101400c879 RSI: ffffffff83aedde9 RDI: 000000010000000e [ 52.823932] RBP: ffff88809b8c78a0 R08: ffff88807f8fe500 R09: 0000000000000005 [ 52.823939] R10: ffffed1015d04732 R11: ffff8880ae823993 R12: ffff8880a0064000 [ 52.823947] R13: 0000000000000002 R14: 0000000000000001 R15: 000000010000000e [ 52.823957] FS: 00000000008b1880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 52.823965] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.823973] CR2: 000000010000000e CR3: 00000000a4cf1000 CR4: 00000000001406f0 [ 52.823982] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.823988] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.823993] Kernel panic - not syncing: Fatal exception [ 52.825564] Kernel Offset: disabled [ 53.318079] Rebooting in 86400 seconds..