[   40.153643] audit: type=1800 audit(1574478073.354:30): pid=7454 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2490 res=0
Starting mcstransd: 
[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   44.113246] kauditd_printk_skb: 4 callbacks suppressed
[   44.113260] audit: type=1400 audit(1574478077.334:35): avc:  denied  { map } for  pid=7629 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 '10.128.0.226' (ECDSA) to the list of known hosts.
executing program
[   50.954122] audit: type=1400 audit(1574478084.174:36): avc:  denied  { map } for  pid=7641 comm="syz-executor386" path="/root/syz-executor386802974" 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
[   50.963019] rxrpc: Assertion failed
[   50.984780] ------------[ cut here ]------------
[   50.989607] kernel BUG at net/rxrpc/local_object.c:437!
[   50.995086] invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[   51.000464] CPU: 1 PID: 19 Comm: kworker/1:0 Not tainted 4.19.85-syzkaller #0
[   51.008075] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   51.017432] Workqueue: krxrpcd rxrpc_local_processor
[   51.022528] RIP: 0010:rxrpc_local_processor.cold+0x24/0x29
[   51.028167] Code: ff 9d fe fa 0f 0b e8 54 39 14 fb 48 c7 c7 80 3e f1 87 e8 ec 9d fe fa 0f 0b e8 41 39 14 fb 48 c7 c7 80 3e f1 87 e8 d9 9d fe fa <0f> 0b 90 90 90 55 48 89 e5 41 57 49 89 ff 41 56 41 55 41 54 53 48
[   51.047060] RSP: 0018:ffff8880aa2b7ce8 EFLAGS: 00010282
[   51.052498] RAX: 0000000000000017 RBX: ffff8880a6552db8 RCX: 0000000000000000
[   51.059755] RDX: 0000000000000000 RSI: ffffffff815595d6 RDI: ffffed1015456f8f
[   51.067009] RBP: ffff8880aa2b7d30 R08: 0000000000000017 R09: ffffed1015d25079
[   51.074278] R10: ffffed1015d25078 R11: ffff8880ae9283c7 R12: ffff88808e6d6ac8
[   51.081553] R13: ffff88809b770448 R14: ffff8880a6552d80 R15: ffff888098048200
[   51.088840] FS:  0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
[   51.097284] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.103156] CR2: 0000000020000080 CR3: 000000000866d000 CR4: 00000000001406e0
[   51.110430] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   51.117907] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   51.125182] Call Trace:
[   51.127789]  process_one_work+0x989/0x1750
[   51.132039]  ? pwq_dec_nr_in_flight+0x320/0x320
[   51.136705]  ? lock_acquire+0x16f/0x3f0
[   51.140675]  ? kasan_check_write+0x14/0x20
[   51.144893]  ? do_raw_spin_lock+0xc8/0x240
[   51.149120]  worker_thread+0x98/0xe40
[   51.152910]  kthread+0x354/0x420
[   51.156269]  ? process_one_work+0x1750/0x1750
[   51.160899]  ? kthread_cancel_delayed_work_sync+0x20/0x20
[   51.166441]  ret_from_fork+0x24/0x30
[   51.170151] Modules linked in:
[   51.173947] ---[ end trace 00641e714374844e ]---
[   51.179012] RIP: 0010:rxrpc_local_processor.cold+0x24/0x29
[   51.184707] Code: ff 9d fe fa 0f 0b e8 54 39 14 fb 48 c7 c7 80 3e f1 87 e8 ec 9d fe fa 0f 0b e8 41 39 14 fb 48 c7 c7 80 3e f1 87 e8 d9 9d fe fa <0f> 0b 90 90 90 55 48 89 e5 41 57 49 89 ff 41 56 41 55 41 54 53 48
[   51.203679] RSP: 0018:ffff8880aa2b7ce8 EFLAGS: 00010282
[   51.209098] RAX: 0000000000000017 RBX: ffff8880a6552db8 RCX: 0000000000000000
[   51.216358] RDX: 0000000000000000 RSI: ffffffff815595d6 RDI: ffffed1015456f8f
[   51.223776] RBP: ffff8880aa2b7d30 R08: 0000000000000017 R09: ffffed1015d25079
[   51.231406] R10: ffffed1015d25078 R11: ffff8880ae9283c7 R12: ffff88808e6d6ac8
[   51.238714] R13: ffff88809b770448 R14: ffff8880a6552d80 R15: ffff888098048200
[   51.246213] FS:  0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
[   51.254494] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   51.260537] CR2: 0000000020000080 CR3: 000000000866d000 CR4: 00000000001406e0
[   51.267840] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   51.275376] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   51.283786] Kernel panic - not syncing: Fatal exception
[   51.290917] Kernel Offset: disabled
[   51.294553] Rebooting in 86400 seconds..