[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   54.533445] random: sshd: uninitialized urandom read (32 bytes read)
[   55.219551] kauditd_printk_skb: 10 callbacks suppressed
[   55.219559] audit: type=1400 audit(1555000731.866:35): avc:  denied  { map } for  pid=7010 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
[   55.286916] random: sshd: uninitialized urandom read (32 bytes read)
[   55.824082] random: sshd: uninitialized urandom read (32 bytes read)
[   56.021456] random: sshd: uninitialized urandom read (32 bytes read)
Warning: Permanently added '10.128.0.235' (ECDSA) to the list of known hosts.
[   61.712265] random: sshd: uninitialized urandom read (32 bytes read)
executing program
[   61.833906] audit: type=1400 audit(1555000738.486:36): avc:  denied  { map } for  pid=7022 comm="syz-executor057" path="/root/syz-executor057252442" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
[   61.837698] kasan: CONFIG_KASAN_INLINE enabled
[   61.865368] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   61.874569] general protection fault: 0000 [#1] PREEMPT SMP KASAN
[   61.880794] Modules linked in:
[   61.883969] CPU: 1 PID: 7022 Comm: syz-executor057 Not tainted 4.14.111 #1
[   61.891124] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   61.900470] task: ffff8880a94ce480 task.stack: ffff888091af8000
[   61.906521] RIP: 0010:rb_erase+0x29/0x1c10
[   61.910729] RSP: 0018:ffff888091aff9d0 EFLAGS: 00010282
[   61.916211] RAX: dffffc0000000000 RBX: ffff8880945624b0 RCX: 1ffff1101235ff12
[   61.923614] RDX: 0000000000000001 RSI: ffffffff89246880 RDI: 0000000000000008
[   61.931065] RBP: ffff888091affa18 R08: ffffffff88d107cc R09: 0000000000001b20
[   61.938551] R10: ffff888091aff7d0 R11: ffff8880a94ce480 R12: 0000000000000000
[   61.945819] R13: ffff888094528430 R14: 0000000000000000 R15: ffffffff867a2220
[   61.953327] FS:  0000000001cf4880(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000
[   61.961682] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   61.967590] CR2: 0000000020000080 CR3: 00000000962cc000 CR4: 00000000001406e0
[   61.974970] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   61.982238] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   61.989497] Call Trace:
[   61.992079]  integrity_inode_free+0x126/0x320
[   61.996557]  security_inode_free+0x19/0x90
[   62.000895]  __destroy_inode+0x1ef/0x4e0
[   62.004936]  destroy_inode+0x50/0x130
[   62.008859]  evict+0x3e9/0x630
[   62.012179]  iput+0x476/0x900
[   62.015288]  ? ext4_nfs_commit_metadata+0x2f0/0x2f0
[   62.020441]  ext4_ioctl+0x15f1/0x38b0
[   62.024249]  ? avc_ss_reset+0x110/0x110
[   62.028216]  ? kmem_cache_free+0x83/0x2b0
[   62.032504]  ? ext4_ioctl_setflags+0x5d0/0x5d0
[   62.037199]  ? debug_check_no_obj_freed+0x2aa/0x7b7
[   62.042220]  ? __might_sleep+0x93/0xb0
[   62.046147]  ? ext4_ioctl_setflags+0x5d0/0x5d0
[   62.050757]  do_vfs_ioctl+0x7b9/0x1070
[   62.054637]  ? selinux_file_mprotect+0x5d0/0x5d0
[   62.059527]  ? kmem_cache_free+0x247/0x2b0
[   62.063907]  ? ioctl_preallocate+0x1c0/0x1c0
[   62.068302]  ? putname+0xe0/0x120
[   62.071735]  ? do_sys_open+0x221/0x430
[   62.075609]  ? security_file_ioctl+0x83/0xc0
[   62.080001]  ? security_file_ioctl+0x8f/0xc0
[   62.084398]  SyS_ioctl+0x8f/0xc0
[   62.088477]  ? do_vfs_ioctl+0x1070/0x1070
[   62.092621]  do_syscall_64+0x1eb/0x630
[   62.096522]  ? trace_hardirqs_off_thunk+0x1a/0x1c
[   62.101372]  entry_SYSCALL_64_after_hwframe+0x42/0xb7
[   62.106646] RIP: 0033:0x440149
[   62.109832] RSP: 002b:00007fff72837118 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   62.117670] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440149
[   62.125071] RDX: 0000000000000000 RSI: 0000000000006611 RDI: 0000000000000003
[   62.132338] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8
[   62.139716] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004019d0
[   62.147074] R13: 0000000000401a60 R14: 0000000000000000 R15: 0000000000000000
[   62.154494] Code: 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 41 57 41 56 49 89 fe 48 83 c7 08 48 89 fa 41 55 48 c1 ea 03 41 54 53 48 83 ec 20 <80> 3c 02 00 0f 85 0c 11 00 00 49 8d 7e 10 4d 8b 7e 08 48 b8 00 
[   62.182215] RIP: rb_erase+0x29/0x1c10 RSP: ffff888091aff9d0
[   62.188188] ---[ end trace c0a156fd1c84bf31 ]---
[   62.193240] Kernel panic - not syncing: Fatal exception
[   62.199714] Kernel Offset: disabled
[   62.203469] Rebooting in 86400 seconds..