[ 31.355408] audit: type=1800 audit(1555171118.812:33): pid=6824 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=2465 res=0
[ 31.383138] audit: type=1800 audit(1555171118.812:34): pid=6824 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=2456 res=0
Debian GNU/Linux 7 syzkaller ttyS0
syzkaller login: [ 45.726062] random: sshd: uninitialized urandom read (32 bytes read)
[ 46.052617] audit: type=1400 audit(1555171133.512:35): avc: denied { map } for pid=6997 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
[ 46.094195] random: sshd: uninitialized urandom read (32 bytes read)
[ 46.652671] random: sshd: uninitialized urandom read (32 bytes read)
[ 46.845709] random: sshd: uninitialized urandom read (32 bytes read)
Warning: Permanently added '10.128.0.12' (ECDSA) to the list of known hosts.
[ 52.431299] random: sshd: uninitialized urandom read (32 bytes read)
executing program
[ 52.553045] audit: type=1400 audit(1555171140.012:36): avc: denied { map } for pid=7009 comm="syz-executor143" path="/root/syz-executor143829431" 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
[ 52.555254] kasan: CONFIG_KASAN_INLINE enabled
[ 52.584231] kasan: GPF could be caused by NULL-ptr deref or user memory access
[ 52.591760] general protection fault: 0000 [#1] PREEMPT SMP KASAN
[ 52.598080] Modules linked in:
[ 52.601261] CPU: 1 PID: 7009 Comm: syz-executor143 Not tainted 4.14.111 #1
[ 52.608256] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 52.617668] task: ffff88808834e6c0 task.stack: ffff888093db8000
[ 52.623777] RIP: 0010:rb_erase+0x29/0x1c10
[ 52.627996] RSP: 0018:ffff888093dbf9d0 EFLAGS: 00010282
[ 52.633342] RAX: dffffc0000000000 RBX: ffff88809a1953b0 RCX: 1ffff110127b7f12
[ 52.640594] RDX: 0000000000000001 RSI: ffffffff89246880 RDI: 0000000000000008
[ 52.647887] RBP: ffff888093dbfa18 R08: ffffffff88d107cc R09: 0000000000001b54
[ 52.655318] R10: ffff888093dbf7d0 R11: ffff88808834e6c0 R12: 0000000000000000
[ 52.662617] R13: ffff88809a1163f0 R14: 0000000000000000 R15: ffffffff867a2220
[ 52.669880] FS: 0000000001266880(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000
[ 52.678259] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 52.684134] CR2: 0000000020000104 CR3: 000000008821b000 CR4: 00000000001406e0
[ 52.691428] Call Trace:
[ 52.694013] integrity_inode_free+0x126/0x320
[ 52.698497] security_inode_free+0x19/0x90
[ 52.702730] __destroy_inode+0x1ef/0x4e0
[ 52.706781] destroy_inode+0x50/0x130
[ 52.710564] evict+0x3e9/0x630
[ 52.713742] iput+0x476/0x900
[ 52.716831] ? ext4_nfs_commit_metadata+0x2f0/0x2f0
[ 52.721875] ext4_ioctl+0x15f1/0x38b0
[ 52.725725] ? avc_ss_reset+0x110/0x110
[ 52.729687] ? kasan_slab_free+0x75/0xc0
[ 52.733838] ? ext4_ioctl_setflags+0x5d0/0x5d0
[ 52.738407] ? find_held_lock+0x35/0x130
[ 52.742458] ? debug_check_no_obj_freed+0x2aa/0x7b7
[ 52.747858] ? __might_sleep+0x93/0xb0
[ 52.751894] ? ext4_ioctl_setflags+0x5d0/0x5d0
[ 52.756463] do_vfs_ioctl+0x7b9/0x1070
[ 52.760344] ? selinux_file_mprotect+0x5d0/0x5d0
[ 52.765096] ? ioctl_preallocate+0x1c0/0x1c0
[ 52.769493] ? putname+0xe0/0x120
[ 52.772934] ? do_sys_open+0x221/0x430
[ 52.776801] ? security_file_ioctl+0x83/0xc0
[ 52.781304] ? security_file_ioctl+0x8f/0xc0
[ 52.785752] SyS_ioctl+0x8f/0xc0
[ 52.789108] ? do_vfs_ioctl+0x1070/0x1070
[ 52.793244] do_syscall_64+0x1eb/0x630
[ 52.797113] ? trace_hardirqs_off_thunk+0x1a/0x1c
[ 52.801948] entry_SYSCALL_64_after_hwframe+0x42/0xb7
[ 52.807124] RIP: 0033:0x440169
[ 52.810412] RSP: 002b:00007ffdff4ace48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 52.818147] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440169
[ 52.825449] RDX: 0000000000000000 RSI: 0000000000006611 RDI: 0000000000000004
[ 52.832711] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8
[ 52.839967] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004019f0
[ 52.847445] R13: 0000000000401a80 R14: 0000000000000000 R15: 0000000000000000
[ 52.854701] 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
[ 52.874002] RIP: rb_erase+0x29/0x1c10 RSP: ffff888093dbf9d0
[ 52.879783] ---[ end trace 0d85c78bcc5b9317 ]---
[ 52.884605] Kernel panic - not syncing: Fatal exception
[ 52.890704] Kernel Offset: disabled
[ 52.894322] Rebooting in 86400 seconds..