[[0;32m OK [0m] Reached target Login Prompts.
[[0;32m OK [0m] Reached target Multi-User System.
[[0;32m OK [0m] Reached target Graphical Interface.
Starting Update UTMP about System Runlevel Changes...
[[0;32m OK [0m] Started Update UTMP about System Runlevel Changes.
Debian GNU/Linux 9 syzkaller ttyS0
Warning: Permanently added '10.128.0.41' (ECDSA) to the list of known hosts.
syzkaller login: [ 34.374564] audit: type=1400 audit(1601371285.554:8): avc: denied { execmem } for pid=6348 comm="syz-executor027" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
[ 34.436168] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 34.441524] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 34.454144] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 34.456077] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 34.469340] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 34.476484] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 34.480989] ------------[ cut here ]------------
[ 34.484475] gfs2: fsid=syz:syz: Now mounting FS...
[ 34.487919] WARNING: CPU: 1 PID: 6356 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x2d
[ 34.487925] Kernel panic - not syncing: panic_on_warn set ...
[ 34.487925]
[ 34.487934] CPU: 1 PID: 6356 Comm: syz-executor027 Not tainted 4.14.198-syzkaller #0
[ 34.487938] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 34.487942] Call Trace:
[ 34.487955] dump_stack+0x1b2/0x283
[ 34.487967] panic+0x1f9/0x42d
[ 34.500865] ------------[ cut here ]------------
[ 34.501105] ? add_taint.cold+0x16/0x16
[ 34.508496] WARNING: CPU: 0 PID: 6359 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x2d
[ 34.516377] ? sysfs_warn_dup.cold+0x17/0x2d
[ 34.525722] Modules linked in:
[ 34.528312] ? sysfs_warn_dup.cold+0x17/0x2d
[ 34.535356] __warn.cold+0x20/0x4b
[ 34.540097] CPU: 0 PID: 6359 Comm: syz-executor027 Not tainted 4.14.198-syzkaller #0
[ 34.544061] ? ist_end_non_atomic+0x10/0x10
[ 34.552292] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 34.556692] ? sysfs_warn_dup.cold+0x17/0x2d
[ 34.559862] task: ffff88809d808340 task.stack: ffff888097b80000
[ 34.564267] report_bug+0x208/0x249
[ 34.567797] RIP: 0010:sysfs_warn_dup.cold+0x17/0x2d
[ 34.575683] do_error_trap+0x195/0x2d0
[ 34.579992] RSP: 0018:ffff888097b87728 EFLAGS: 00010282
[ 34.589367] ? math_error+0x2d0/0x2d0
[ 34.599800] ? ___preempt_schedule+0x16/0x18
[ 34.603401] RAX: 000000000000003a RBX: ffff888097390790 RCX: 0000000000000000
[ 34.608411] ? trace_hardirqs_off_thunk+0x1a/0x1c
[ 34.612288] RDX: 0000000000000000 RSI: ffffffff86ac12c0 RDI: ffffed1012f70edb
[ 34.617641] invalid_op+0x1b/0x40
[ 34.621414] RBP: ffff88809727cdc0 R08: 000000000000003a R09: 0000000000000000
[ 34.625807] RIP: 0010:sysfs_warn_dup.cold+0x17/0x2d
[ 34.633090] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8882190f29a0
[ 34.637913] RSP: 0018:ffff888089ccf728 EFLAGS: 00010282
[ 34.645171] R13: ffff8880a7f31b40 R14: ffff8880973907b0 R15: ffff888096ddc758
[ 34.655879] FS: 00000000017b3880(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
[ 34.660883] RAX: 000000000000003a RBX: ffff888096c386d0 RCX: 0000000000000000
[ 34.668171] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 34.673523] RDX: 0000000000000000 RSI: ffffffff86ac12c0 RDI: ffffed1011399edb
[ 34.673531] RBP: ffff888097644e80 R08: 000000000000003a R09: 0000000000000000
[ 34.680798] CR2: 000056319e576000 CR3: 0000000090d56000 CR4: 00000000001406f0
[ 34.689014] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8882190f29a0
[ 34.696306] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 34.702187] R13: ffff888097d2ed80 R14: ffff888096c386f0 R15: ffff888097204698
[ 34.709454] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 34.717431] ? sysfs_warn_dup.cold+0x17/0x2d
[ 34.724671] Call Trace:
[ 34.731944] sysfs_create_dir_ns+0x16f/0x1d0
[ 34.739225] sysfs_create_dir_ns+0x16f/0x1d0
[ 34.746488] kobject_add_internal+0x279/0x810
[ 34.753752] kobject_add_internal+0x279/0x810
[ 34.758146] kobject_init_and_add+0xde/0x120
[ 34.760714] kobject_init_and_add+0xde/0x120
[ 34.765105] ? kobject_create_and_add+0x200/0x200
[ 34.769522] ? kobject_create_and_add+0x200/0x200
[ 34.774026] ? vsnprintf+0x260/0x1340
[ 34.778520] ? vsnprintf+0x260/0x1340
[ 34.782914] gfs2_sys_fs_add+0x184/0x3f0
[ 34.787310] gfs2_sys_fs_add+0x184/0x3f0
[ 34.792140] ? recover_store+0x100/0x100
[ 34.796967] ? recover_store+0x100/0x100
[ 34.801098] ? snprintf+0xa5/0xd0
[ 34.804885] ? snprintf+0xa5/0xd0
[ 34.808928] ? memcpy+0x35/0x50
[ 34.812985] ? memcpy+0x35/0x50
[ 34.817026] fill_super+0x118b/0x2310
[ 34.821079] fill_super+0x118b/0x2310
[ 34.824518] ? vsnprintf+0x260/0x1340
[ 34.835426] ? vsnprintf+0x260/0x1340
[ 34.838690] ? gfs2_online_uevent+0x1b0/0x1b0
[ 34.841951] ? gfs2_online_uevent+0x1b0/0x1b0
[ 34.845746] ? pointer+0x9e0/0x9e0
[ 34.849525] ? pointer+0x9e0/0x9e0
[ 34.853311] ? snprintf+0xa5/0xd0
[ 34.857140] ? snprintf+0xa5/0xd0
[ 34.861611] ? vsprintf+0x30/0x30
[ 34.866094] ? vsprintf+0x30/0x30
[ 34.869637] ? gfs2_open+0x160/0x160
[ 34.873152] ? gfs2_open+0x160/0x160
[ 34.876589] ? set_blocksize+0x125/0x380
[ 34.880030] ? set_blocksize+0x125/0x380
[ 34.883482] gfs2_mount+0x439/0x502
[ 34.886942] gfs2_mount+0x439/0x502
[ 34.890651] ? fill_super+0x2310/0x2310
[ 34.894348] ? fill_super+0x2310/0x2310
[ 34.899102] mount_fs+0x92/0x2a0
[ 34.903150] mount_fs+0x92/0x2a0
[ 34.906750] vfs_kern_mount.part.0+0x5b/0x470
[ 34.910368] vfs_kern_mount.part.0+0x5b/0x470
[ 34.914324] do_mount+0xe53/0x2a00
[ 34.918281] do_mount+0xe53/0x2a00
[ 34.921637] ? copy_mount_string+0x40/0x40
[ 34.924983] ? do_raw_spin_unlock+0x164/0x220
[ 34.929474] ? rcu_read_lock_sched_held+0x16c/0x1d0
[ 34.933956] ? copy_mount_string+0x40/0x40
[ 34.937477] ? copy_mnt_ns+0xa30/0xa30
[ 34.941003] ? rcu_read_lock_sched_held+0x16c/0x1d0
[ 34.945228] ? copy_mount_options+0x1fa/0x2f0
[ 34.949708] ? copy_mnt_ns+0xa30/0xa30
[ 34.954708] ? copy_mnt_ns+0xa30/0xa30
[ 34.958922] ? copy_mount_options+0x1fa/0x2f0
[ 34.962797] SyS_mount+0xa8/0x120
[ 34.967800] ? copy_mnt_ns+0xa30/0xa30
[ 34.972273] ? copy_mnt_ns+0xa30/0xa30
[ 34.976153] SyS_mount+0xa8/0x120
[ 34.980037] do_syscall_64+0x1d5/0x640
[ 34.984511] ? copy_mnt_ns+0xa30/0xa30
[ 34.987945] entry_SYSCALL_64_after_hwframe+0x46/0xbb
[ 34.991816] do_syscall_64+0x1d5/0x640
[ 34.995690] RIP: 0033:0x45c57a
[ 34.999139] entry_SYSCALL_64_after_hwframe+0x46/0xbb
[ 35.003011] RSP: 002b:00007fff1baf8dc8 EFLAGS: 00000293 ORIG_RAX: 00000000000000a5
[ 35.006896] RIP: 0033:0x45c57a
[ 35.012063] RAX: ffffffffffffffda RBX: 00007fff1baf8e20 RCX: 000000000045c57a
[ 35.015947] RSP: 002b:00007fff1baf8dc8 EFLAGS: 00000293
[ 35.019122] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fff1baf8de0
[ 35.024289] ORIG_RAX: 00000000000000a5
[ 35.031979] RBP: 00007fff1baf8de0 R08: 00007fff1baf8e20 R09: 0000000000000000
[ 35.035155] RAX: ffffffffffffffda RBX: 00007fff1baf8e20 RCX: 000000000045c57a
[ 35.042409] R10: 0000000000000000 R11: 0000000000000293 R12: 000000000000091c
[ 35.047778] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fff1baf8de0
[ 35.055053] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003
[ 35.059025] RBP: 00007fff1baf8de0 R08: 00007fff1baf8e20 R09: 0000000000000000
[ 35.103522] R10: 0000000000000000 R11: 0000000000000293 R12: 000000000000091c
[ 35.110784] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003
[ 35.118417] Code: 56 61 8a e8 59 41 db ff eb d8 e8 52 41 db ff e9 6d ff ff ff e8 08 6e b1 ff 4c 89 ea 48 89 ee 48 c7 c7 a0 9d b5 86 e8 57 0d a0 ff <0f> 0b 48 89 ef 5d 41 5c 41 5d e9 67 16 db ff 90 90 90 90 90 90
[ 35.137669] ---[ end trace d5f00a3c5f291f92 ]---
[ 35.143434] Kernel Offset: disabled
[ 35.147119] Rebooting in 86400 seconds..