[?25l[?1c7[ ok [39;[ 32.267841] audit: type=1800 audit(1556002484.562:34): pid=6854 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 49m8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 35.764937] random: sshd: uninitialized urandom read (32 bytes read) [ 36.023372] audit: type=1400 audit(1556002488.342:35): avc: denied { map } for pid=7026 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 [ 36.079017] random: sshd: uninitialized urandom read (32 bytes read) [ 36.666673] random: sshd: uninitialized urandom read (32 bytes read) [ 36.851963] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.199' (ECDSA) to the list of known hosts. [ 44.961916] random: sshd: uninitialized urandom read (32 bytes read) [ 45.082329] audit: type=1400 audit(1556002497.402:36): avc: denied { map } for pid=7038 comm="syz-executor598" path="/root/syz-executor598768509" 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 [ 45.850166] IPVS: ftp: loaded support on port[0] = 21 executing program [ 46.135102] kasan: CONFIG_KASAN_INLINE enabled [ 46.139762] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 46.147204] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 46.153443] Modules linked in: [ 46.156621] CPU: 0 PID: 7040 Comm: syz-executor598 Not tainted 4.14.113 #3 [ 46.163607] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.172938] task: ffff8880a1c5c3c0 task.stack: ffff8880a55e8000 [ 46.178977] RIP: 0010:rb_erase+0x29/0x1c10 [ 46.183187] RSP: 0018:ffff8880a55ef9d0 EFLAGS: 00010282 [ 46.188526] RAX: dffffc0000000000 RBX: ffff8880958655f0 RCX: 1ffff11014abdf12 [ 46.195772] RDX: 0000000000000001 RSI: ffffffff892478c0 RDI: 0000000000000008 [ 46.203019] RBP: ffff8880a55efa18 R08: ffffffff88d117cc R09: 0000000000001baa [ 46.210266] R10: ffff8880a55ef7d0 R11: ffff8880a1c5c3c0 R12: 0000000000000000 [ 46.217512] R13: ffff888095866630 R14: 0000000000000000 R15: ffffffff867a2600 [ 46.224867] FS: 0000000001032880(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000 [ 46.233070] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 46.238927] CR2: 00000000006cd090 CR3: 00000000a1bc8000 CR4: 00000000001406f0 [ 46.246177] Call Trace: [ 46.248748] integrity_inode_free+0x126/0x320 [ 46.253230] security_inode_free+0x19/0x90 [ 46.257443] __destroy_inode+0x1ef/0x4e0 [ 46.261501] destroy_inode+0x50/0x130 [ 46.265281] evict+0x3e9/0x630 [ 46.268454] iput+0x476/0x900 [ 46.271543] ? ext4_nfs_commit_metadata+0x2f0/0x2f0 [ 46.276540] ext4_ioctl+0x16bb/0x39b0 [ 46.280322] ? avc_ss_reset+0x110/0x110 [ 46.284292] ? ext4_ioctl_setflags+0x5d0/0x5d0 [ 46.288856] ? follow_pfn+0x220/0x220 [ 46.292635] ? do_wp_page+0x24f/0x12b0 [ 46.296504] ? __might_sleep+0x93/0xb0 [ 46.300368] ? save_trace+0x290/0x290 [ 46.304159] ? ext4_ioctl_setflags+0x5d0/0x5d0 [ 46.308722] do_vfs_ioctl+0x7b9/0x1070 [ 46.312594] ? selinux_file_mprotect+0x5d0/0x5d0 [ 46.317326] ? ioctl_preallocate+0x1c0/0x1c0 [ 46.321711] ? lock_downgrade+0x6e0/0x6e0 [ 46.325840] ? security_file_ioctl+0x83/0xc0 [ 46.330224] ? security_file_ioctl+0x8f/0xc0 [ 46.334630] SyS_ioctl+0x8f/0xc0 [ 46.337988] ? do_vfs_ioctl+0x1070/0x1070 [ 46.342118] do_syscall_64+0x1eb/0x630 [ 46.345984] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.350810] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 46.355977] RIP: 0033:0x441b69 [ 46.359146] RSP: 002b:00007ffd3a0abde8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 46.366830] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441b69 [ 46.374076] RDX: 0000000000000000 RSI: 0000000000006611 RDI: 0000000000000005 [ 46.381325] RBP: 0000000000000000 R08: 0000000000000045 R09: 0000000000000045 [ 46.388592] R10: 0000000000000045 R11: 0000000000000246 R12: 0000000000000000 [ 46.395838] R13: 0000000000402970 R14: 0000000000000000 R15: 0000000000000000 [ 46.403089] 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 [ 46.422194] RIP: rb_erase+0x29/0x1c10 RSP: ffff8880a55ef9d0 [ 46.428002] ---[ end trace a2426753b3634711 ]--- [ 46.432770] Kernel panic - not syncing: Fatal exception [ 46.438718] Kernel Offset: disabled [ 46.442333] Rebooting in 86400 seconds..