Warning: Permanently added '10.128.1.29' (ECDSA) to the list of known hosts. syzkaller login: [ 37.943032] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 37.957868] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 37.967588] ------------[ cut here ]------------ [ 37.972365] WARNING: CPU: 0 PID: 8004 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x26 [ 37.972473] gfs2: fsid=syz:syz: Now mounting FS... [ 37.980576] Kernel panic - not syncing: panic_on_warn set ... [ 37.980576] [ 37.980584] CPU: 0 PID: 8004 Comm: syz-executor386 Not tainted 4.14.302-syzkaller #0 [ 37.980589] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 37.980592] Call Trace: [ 37.980604] dump_stack+0x1b2/0x281 [ 37.980614] panic+0x1f9/0x42d [ 37.980620] ? add_taint.cold+0x16/0x16 [ 37.980629] ? sysfs_warn_dup.cold+0x17/0x26 [ 37.980637] ? sysfs_warn_dup.cold+0x17/0x26 [ 37.980643] __warn.cold+0x20/0x44 [ 37.980652] ? ist_end_non_atomic+0x10/0x10 [ 37.980659] ? sysfs_warn_dup.cold+0x17/0x26 [ 37.980667] report_bug+0x208/0x250 [ 37.980677] do_error_trap+0x195/0x2d0 [ 37.980685] ? math_error+0x2d0/0x2d0 [ 37.980692] ? ___preempt_schedule+0x16/0x18 [ 37.980704] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.980714] invalid_op+0x1b/0x40 [ 37.980722] RIP: 0010:sysfs_warn_dup.cold+0x17/0x26 [ 37.980726] RSP: 0018:ffff8880969ef728 EFLAGS: 00010282 [ 37.980733] RAX: 000000000000003a RBX: ffff888091e59b10 RCX: 0000000000000000 [ 37.980738] RDX: 0000000000000000 RSI: ffffffff878bd020 RDI: ffffed1012d3dedb [ 37.980742] RBP: ffff88809521e300 R08: 000000000000003a R09: 0000000000000000 [ 37.980746] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8882388667e0 [ 37.980751] R13: ffff8880b46f4900 R14: ffff888091e59b18 R15: ffff888093185ad8 [ 37.980766] ? sysfs_warn_dup.cold+0x17/0x26 [ 37.980774] sysfs_create_dir_ns+0x16f/0x1d0 [ 37.980783] kobject_add_internal+0x28b/0x930 [ 38.007680] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 38.010279] kobject_init_and_add+0xde/0x120 [ 38.010288] ? kobject_create_and_add+0x200/0x200 [ 38.010297] ? vsnprintf+0x260/0x1340 [ 38.010310] gfs2_sys_fs_add+0x184/0x3f0 [ 38.010318] ? recover_store+0x100/0x100 [ 38.022884] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 38.023635] ? snprintf+0xa5/0xd0 [ 38.023649] ? strscpy+0x94/0x280 [ 38.041246] ------------[ cut here ]------------ [ 38.044636] fill_super+0x118b/0x2310 [ 38.048243] WARNING: CPU: 1 PID: 8005 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x26 [ 38.052102] ? vsnprintf+0x260/0x1340 [ 38.055866] Modules linked in: [ 38.060255] ? gfs2_online_uevent+0x1b0/0x1b0 [ 38.068499] ? pointer+0x9e0/0x9e0 [ 38.073521] CPU: 1 PID: 8005 Comm: syz-executor386 Not tainted 4.14.302-syzkaller #0 [ 38.078864] ? snprintf+0xa5/0xd0 [ 38.086107] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 38.093440] ? vsprintf+0x30/0x30 [ 38.100682] task: ffff888095bb0640 task.stack: ffff888098f08000 [ 38.107928] ? gfs2_open+0x160/0x160 [ 38.115175] RIP: 0010:sysfs_warn_dup.cold+0x17/0x26 [ 38.119560] ? set_blocksize+0x125/0x380 [ 38.123934] RSP: 0018:ffff888098f0f728 EFLAGS: 00010282 [ 38.128410] gfs2_mount+0x439/0x510 [ 38.139426] ? fill_super+0x2310/0x2310 [ 38.144334] RAX: 000000000000003a RBX: ffff88809ae31c50 RCX: 0000000000000000 [ 38.148123] ? alloc_pages_current+0x15d/0x260 [ 38.152311] RDX: 0000000000000000 RSI: ffffffff878bd020 RDI: ffffed10131e1edb [ 38.152317] RBP: ffff888095004400 R08: 000000000000003a R09: 0000000000000001 [ 38.156355] ? __lockdep_init_map+0x100/0x560 [ 38.163028] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8882388667e0 [ 38.166456] mount_fs+0x92/0x2a0 [ 38.169880] R13: ffff8880af775080 R14: ffff88809ae31c58 R15: ffff888091e59b18 [ 38.174627] vfs_kern_mount.part.0+0x5b/0x470 [ 38.178395] FS: 000055555653d300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 [ 38.186598] do_mount+0xe65/0x2a30 [ 38.190369] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 38.193542] ? copy_mount_string+0x40/0x40 [ 38.198003] CR2: 00007ffc732389d8 CR3: 00000000b051a000 CR4: 00000000003406e0 [ 38.201520] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 38.209367] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 38.212795] ? copy_mnt_ns+0xa30/0xa30 [ 38.222205] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 38.222210] Call Trace: [ 38.225644] ? copy_mount_options+0x1fa/0x2f0 [ 38.231676] sysfs_create_dir_ns+0x16f/0x1d0 [ 38.235363] ? copy_mnt_ns+0xa30/0xa30 [ 38.240353] kobject_add_internal+0x28b/0x930 [ 38.244388] SyS_mount+0xa8/0x120 [ 38.249728] kobject_init_and_add+0xde/0x120 [ 38.253326] ? copy_mnt_ns+0xa30/0xa30 [ 38.257275] ? kobject_create_and_add+0x200/0x200 [ 38.264521] do_syscall_64+0x1d5/0x640 [ 38.269158] ? vsnprintf+0x260/0x1340 [ 38.276438] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 38.283687] gfs2_sys_fs_add+0x184/0x3f0 [ 38.288152] RIP: 0033:0x7f855ea2c6da [ 38.295400] ? recover_store+0x100/0x100 [ 38.298757] RSP: 002b:00007ffd4e6221e8 EFLAGS: 00000282 [ 38.306013] ? snprintf+0xa5/0xd0 [ 38.310493] ORIG_RAX: 00000000000000a5 [ 38.318705] ? strscpy+0x94/0x280 [ 38.322217] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f855ea2c6da [ 38.328077] fill_super+0x118b/0x2310 [ 38.332282] RDX: 0000000020037f40 RSI: 0000000020037f80 RDI: 00007ffd4e622200 [ 38.332288] RBP: 00007ffd4e622200 R08: 00007ffd4e622240 R09: 0000000000000002 [ 38.339541] ? vsnprintf+0x260/0x1340 [ 38.344523] R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000004 [ 38.351892] ? gfs2_online_uevent+0x1b0/0x1b0 [ 38.355748] R13: 000055555653d2c0 R14: 0000000000000000 R15: 00007ffd4e622240 [ 38.362998] ? pointer+0x9e0/0x9e0 [ 38.491834] ? snprintf+0xa5/0xd0 [ 38.495274] ? vsprintf+0x30/0x30 [ 38.498713] ? gfs2_open+0x160/0x160 [ 38.502409] ? set_blocksize+0x125/0x380 [ 38.506456] gfs2_mount+0x439/0x510 [ 38.510070] ? fill_super+0x2310/0x2310 [ 38.514041] ? alloc_pages_current+0x15d/0x260 [ 38.518605] ? __lockdep_init_map+0x100/0x560 [ 38.523087] mount_fs+0x92/0x2a0 [ 38.526460] vfs_kern_mount.part.0+0x5b/0x470 [ 38.530952] do_mount+0xe65/0x2a30 [ 38.534488] ? copy_mount_string+0x40/0x40 [ 38.538717] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 38.543724] ? copy_mnt_ns+0xa30/0xa30 [ 38.547608] ? copy_mount_options+0x1fa/0x2f0 [ 38.552095] ? copy_mnt_ns+0xa30/0xa30 [ 38.555972] SyS_mount+0xa8/0x120 [ 38.559408] ? copy_mnt_ns+0xa30/0xa30 [ 38.563282] do_syscall_64+0x1d5/0x640 [ 38.567160] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 38.572332] RIP: 0033:0x7f855ea2c6da [ 38.576023] RSP: 002b:00007ffd4e6221e8 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 38.583741] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f855ea2c6da [ 38.590994] RDX: 0000000020037f40 RSI: 0000000020037f80 RDI: 00007ffd4e622200 [ 38.598246] RBP: 00007ffd4e622200 R08: 00007ffd4e622240 R09: 0000000000000002 [ 38.605496] R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000004 [ 38.612748] R13: 000055555653d2c0 R14: 0000000000000000 R15: 00007ffd4e622240 [ 38.620018] Code: bd ea ff ff ff e9 8f c2 9f fa 4c 89 ff e8 74 de 7a fa eb da e8 6d 1d 51 fa 4c 89 ea 48 89 ee 48 c7 c7 80 c4 95 87 e8 e5 fb fe ff <0f> 0b 48 89 ef 5d 41 5c 41 5d e9 4c b4 7a fa e8 47 1d 51 fa 4d [ 38.639199] ---[ end trace 55a23bba2259a321 ]--- [ 38.644088] Kernel Offset: disabled [ 38.647749] Rebooting in 86400 seconds..