[ 31.458021] audit: type=1800 audit(1579080113.820:33): pid=7079 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 [ 31.485187] audit: type=1800 audit(1579080113.830:34): pid=7079 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: [ 36.092073] random: sshd: uninitialized urandom read (32 bytes read) [ 36.447976] audit: type=1400 audit(1579080118.810:35): avc: denied { map } for pid=7253 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 [ 36.488703] random: sshd: uninitialized urandom read (32 bytes read) [ 37.204419] random: sshd: uninitialized urandom read (32 bytes read) [ 94.441927] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.0.143' (ECDSA) to the list of known hosts. [ 100.155785] random: sshd: uninitialized urandom read (32 bytes read) [ 100.272394] audit: type=1400 audit(1579080182.640:36): avc: denied { map } for pid=7265 comm="syz-executor324" path="/root/syz-executor324359975" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 100.540910] IPVS: ftp: loaded support on port[0] = 21 executing program [ 101.330902] FAULT_INJECTION: forcing a failure. [ 101.330902] name failslab, interval 1, probability 0, space 0, times 1 [ 101.342484] CPU: 0 PID: 7268 Comm: syz-executor324 Not tainted 4.14.165-syzkaller #0 [ 101.350464] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 101.359821] Call Trace: [ 101.362416] dump_stack+0x142/0x197 [ 101.366050] should_fail.cold+0x10f/0x159 [ 101.370185] should_failslab+0xdb/0x130 [ 101.374153] __kmalloc+0x2f0/0x7a0 [ 101.377708] ? lock_downgrade+0x740/0x740 [ 101.381857] ? register_shrinker+0xbd/0x220 [ 101.386287] register_shrinker+0xbd/0x220 [ 101.390432] sget_userns+0x9bf/0xc30 [ 101.394249] ? ns_test_super+0x50/0x50 [ 101.398159] ? set_bdev_super+0x120/0x120 [ 101.402294] ? set_bdev_super+0x120/0x120 [ 101.406434] ? ns_test_super+0x50/0x50 [ 101.410318] sget+0xd6/0x120 [ 101.413319] mount_bdev+0xd5/0x370 [ 101.416846] ? hfs_show_options+0x590/0x590 [ 101.421148] hfs_mount+0x35/0x40 [ 101.424517] mount_fs+0x97/0x2a1 [ 101.428071] vfs_kern_mount.part.0+0x5e/0x3d0 [ 101.432557] do_mount+0x417/0x27d0 [ 101.436086] ? copy_mount_options+0x5c/0x2f0 [ 101.440479] ? rcu_read_lock_sched_held+0x110/0x130 [ 101.445480] ? copy_mount_string+0x40/0x40 [ 101.449700] ? copy_mount_options+0x1fe/0x2f0 [ 101.454734] SyS_mount+0xab/0x120 [ 101.458167] ? copy_mnt_ns+0x8c0/0x8c0 [ 101.462036] do_syscall_64+0x1e8/0x640 [ 101.465902] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 101.470819] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 101.475991] RIP: 0033:0x44dbca [ 101.479174] RSP: 002b:00007f1125edaae8 EFLAGS: 00000287 ORIG_RAX: 00000000000000a5 [ 101.486870] RAX: ffffffffffffffda RBX: 00007f1125edacc0 RCX: 000000000044dbca [ 101.494124] RDX: 00007f1125edab30 RSI: 00000000200001c0 RDI: 00007f1125edab50 [ 101.501379] RBP: 0000000000000005 R08: 00007f1125edab90 R09: 0000000000000005 [ 101.508631] R10: 0000000000000000 R11: 0000000000000287 R12: 00000000006ddc2c [ 101.515900] R13: 00007ffc4b6918df R14: 00007f1125edb9c0 R15: 0000000000000000 [ 101.524039] ------------[ cut here ]------------ [ 101.528936] WARNING: CPU: 0 PID: 7268 at fs/super.c:1163 kill_block_super+0xc9/0xf0 [ 101.536715] Kernel panic - not syncing: panic_on_warn set ... [ 101.536715] [ 101.544154] CPU: 0 PID: 7268 Comm: syz-executor324 Not tainted 4.14.165-syzkaller #0 [ 101.552027] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 101.561368] Call Trace: [ 101.563943] dump_stack+0x142/0x197 [ 101.567570] panic+0x1f9/0x42d [ 101.570747] ? add_taint.cold+0x16/0x16 [ 101.574707] ? kill_block_super+0xc9/0xf0 [ 101.578853] ? kill_block_super+0xc9/0xf0 [ 101.582983] __warn.cold+0x2f/0x2f [ 101.586522] ? ist_end_non_atomic+0x10/0x10 [ 101.590830] ? kill_block_super+0xc9/0xf0 [ 101.594982] report_bug+0x216/0x254 [ 101.598609] do_error_trap+0x1bb/0x310 [ 101.602490] ? math_error+0x360/0x360 [ 101.606272] ? save_trace+0x290/0x290 [ 101.610060] ? generic_shutdown_super+0x27c/0x370 [ 101.614891] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 101.619717] do_invalid_op+0x1b/0x20 [ 101.623412] invalid_op+0x1b/0x40 [ 101.626846] RIP: 0010:kill_block_super+0xc9/0xf0 [ 101.631594] RSP: 0018:ffff888088937b98 EFLAGS: 00010297 [ 101.636951] RAX: ffff8880807620c0 RBX: 0000000000000000 RCX: 1ffff110100ec526 [ 101.644207] RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff8880a6d81a20 [ 101.651544] RBP: ffff888088937bb0 R08: ffff8880807620c0 R09: 0000000000000001 [ 101.658800] R10: 0000000000000000 R11: ffff8880807620c0 R12: ffff8880979d06c0 [ 101.666052] R13: ffff8880a6d81680 R14: ffff8880979d06c0 R15: dffffc0000000000 [ 101.673333] ? kill_block_super+0xc9/0xf0 [ 101.677466] deactivate_locked_super+0x74/0xe0 [ 101.682032] sget_userns+0x9d9/0xc30 [ 101.685727] ? ns_test_super+0x50/0x50 [ 101.689597] ? set_bdev_super+0x120/0x120 [ 101.693726] ? set_bdev_super+0x120/0x120 [ 101.697953] ? ns_test_super+0x50/0x50 [ 101.701824] sget+0xd6/0x120 [ 101.704838] mount_bdev+0xd5/0x370 [ 101.708357] ? hfs_show_options+0x590/0x590 [ 101.712662] hfs_mount+0x35/0x40 [ 101.716011] mount_fs+0x97/0x2a1 [ 101.719359] vfs_kern_mount.part.0+0x5e/0x3d0 [ 101.723837] do_mount+0x417/0x27d0 [ 101.727360] ? copy_mount_options+0x5c/0x2f0 [ 101.731755] ? rcu_read_lock_sched_held+0x110/0x130 [ 101.736863] ? copy_mount_string+0x40/0x40 [ 101.741093] ? copy_mount_options+0x1fe/0x2f0 [ 101.745575] SyS_mount+0xab/0x120 [ 101.749013] ? copy_mnt_ns+0x8c0/0x8c0 [ 101.752924] do_syscall_64+0x1e8/0x640 [ 101.756804] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 101.761637] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 101.766829] RIP: 0033:0x44dbca [ 101.770000] RSP: 002b:00007f1125edaae8 EFLAGS: 00000287 ORIG_RAX: 00000000000000a5 [ 101.777703] RAX: ffffffffffffffda RBX: 00007f1125edacc0 RCX: 000000000044dbca [ 101.784955] RDX: 00007f1125edab30 RSI: 00000000200001c0 RDI: 00007f1125edab50 [ 101.792208] RBP: 0000000000000005 R08: 00007f1125edab90 R09: 0000000000000005 [ 101.799460] R10: 0000000000000000 R11: 0000000000000287 R12: 00000000006ddc2c [ 101.806713] R13: 00007ffc4b6918df R14: 00007f1125edb9c0 R15: 0000000000000000 [ 101.815842] Kernel Offset: disabled [ 101.819547] Rebooting in 86400 seconds..