[ 62.963409][ T26] audit: type=1800 audit(1563627141.487:24): pid=8847 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="sudo" dev="sda1" ino=2454 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 63.712959][ T26] audit: type=1800 audit(1563627142.347:25): pid=8847 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 63.757688][ T26] audit: type=1800 audit(1563627142.347:26): pid=8847 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.15.215' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 75.356173][ T9000] kasan: CONFIG_KASAN_INLINE enabled [ 75.361791][ T9000] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 75.370123][ T9000] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 75.377073][ T9000] CPU: 0 PID: 9000 Comm: syz-executor213 Not tainted 5.2.0-next-20190718 #41 [ 75.385830][ T9000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.395903][ T9000] RIP: 0010:map_id_range_down+0x87/0x370 [ 75.401539][ T9000] Code: 6e 81 c7 00 f1 f1 f1 f1 c7 40 04 00 04 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 e8 c0 a5 03 00 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 74 08 3c 03 0f 8e 9f 02 00 00 4c 8b ad 68 ff [ 75.421144][ T9000] RSP: 0018:ffff88809a567a30 EFLAGS: 00010246 [ 75.427246][ T9000] RAX: 0000000000000000 RBX: ffff88809a567aa8 RCX: ffffffff825b97b5 [ 75.435228][ T9000] RDX: 0000000000000000 RSI: ffffffff816edf30 RDI: 0000000000000000 [ 75.443212][ T9000] RBP: ffff88809a567ad0 R08: ffff88808e4d2600 R09: ffffed1014af1713 [ 75.451190][ T9000] R10: ffffed1014af1712 R11: 0000000000000003 R12: 0000000000000001 [ 75.459164][ T9000] R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 [ 75.467143][ T9000] FS: 0000555555618880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 75.476071][ T9000] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.482659][ T9000] CR2: 0000000020000084 CR3: 000000008b2ec000 CR4: 00000000001406f0 [ 75.490632][ T9000] Call Trace: [ 75.493934][ T9000] ? __put_user_ns+0x70/0x70 [ 75.498532][ T9000] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 75.504782][ T9000] ? fs_parse+0x53c/0x1080 [ 75.509210][ T9000] make_kuid+0x23/0x30 [ 75.513293][ T9000] fuse_parse_param+0x2cb/0x750 [ 75.518181][ T9000] ? process_init_reply+0x1650/0x1650 [ 75.523564][ T9000] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 75.529287][ T9000] ? __lookup_constant+0xd6/0x100 [ 75.534321][ T9000] ? process_init_reply+0x1650/0x1650 [ 75.539711][ T9000] vfs_parse_fs_param+0x2ca/0x540 [ 75.544774][ T9000] vfs_parse_fs_string+0x105/0x170 [ 75.549920][ T9000] ? vfs_parse_fs_param+0x540/0x540 [ 75.555136][ T9000] ? fuse_init_fs_context+0x44/0x1d0 [ 75.560435][ T9000] ? rcu_read_lock_sched_held+0x110/0x130 [ 75.566162][ T9000] ? kmem_cache_alloc_trace+0x397/0x790 [ 75.571719][ T9000] generic_parse_monolithic+0x181/0x200 [ 75.577285][ T9000] ? vfs_parse_fs_string+0x170/0x170 [ 75.582579][ T9000] ? fuse_dev_alloc+0x410/0x410 [ 75.587546][ T9000] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 75.593805][ T9000] ? alloc_fs_context+0x400/0x690 [ 75.598834][ T9000] ? vfs_parse_fs_string+0x170/0x170 [ 75.604131][ T9000] parse_monolithic_mount_data+0x69/0x90 [ 75.609774][ T9000] do_mount+0x924/0x1c30 [ 75.614050][ T9000] ? copy_mount_string+0x40/0x40 [ 75.618989][ T9000] ? kfree+0x226/0x2c0 [ 75.623062][ T9000] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 75.629316][ T9000] ? copy_mount_options+0x2e8/0x3f0 [ 75.634529][ T9000] ksys_mount+0xdb/0x150 [ 75.638806][ T9000] __x64_sys_mount+0xbe/0x150 [ 75.643500][ T9000] do_syscall_64+0xfd/0x6a0 [ 75.648014][ T9000] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 75.653913][ T9000] RIP: 0033:0x4406e9 [ 75.657807][ T9000] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 5b 14 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 75.677412][ T9000] RSP: 002b:00007ffdf71f73c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 75.686017][ T9000] RAX: ffffffffffffffda RBX: 0000000000007275 RCX: 00000000004406e9 [ 75.693994][ T9000] RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000000 [ 75.701971][ T9000] RBP: 00000000006cb018 R08: 0000000020000300 R09: 65732f636f72702f [ 75.709946][ T9000] R10: 0000000000000070 R11: 0000000000000246 R12: 0000000000401fd0 [ 75.717914][ T9000] R13: 0000000000402060 R14: 0000000000000000 R15: 0000000000000000 [ 75.725912][ T9000] Modules linked in: [ 75.730251][ T9000] ---[ end trace 4fbbc963024437d2 ]--- [ 75.735755][ T9000] RIP: 0010:map_id_range_down+0x87/0x370 [ 75.741803][ T9000] Code: 6e 81 c7 00 f1 f1 f1 f1 c7 40 04 00 04 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 e8 c0 a5 03 00 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 74 08 3c 03 0f 8e 9f 02 00 00 4c 8b ad 68 ff [ 75.761533][ T9000] RSP: 0018:ffff88809a567a30 EFLAGS: 00010246 [ 75.767661][ T9000] RAX: 0000000000000000 RBX: ffff88809a567aa8 RCX: ffffffff825b97b5 [ 75.775636][ T9000] RDX: 0000000000000000 RSI: ffffffff816edf30 RDI: 0000000000000000 [ 75.783703][ T9000] RBP: ffff88809a567ad0 R08: ffff88808e4d2600 R09: ffffed1014af1713 [ 75.791750][ T9000] R10: ffffed1014af1712 R11: 0000000000000003 R12: 0000000000000001 [ 75.799807][ T9000] R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 [ 75.807831][ T9000] FS: 0000555555618880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 75.816759][ T9000] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.823431][ T9000] CR2: 0000000020000084 CR3: 000000008b2ec000 CR4: 00000000001406f0 [ 75.831484][ T9000] Kernel panic - not syncing: Fatal exception [ 75.838517][ T9000] Kernel Offset: disabled [ 75.842860][ T9000] Rebooting in 86400 seconds..