Warning: Permanently added '10.128.1.74' (ECDSA) to the list of known hosts. syzkaller login: [ 29.492542] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 29.502376] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 29.507332] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 29.521635] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 29.528364] ------------[ cut here ]------------ [ 29.529414] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 29.533134] WARNING: CPU: 0 PID: 8014 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x26 [ 29.533139] Kernel panic - not syncing: panic_on_warn set ... [ 29.533139] [ 29.533147] CPU: 0 PID: 8014 Comm: syz-executor951 Not tainted 4.14.302-syzkaller #0 [ 29.533151] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 29.533154] Call Trace: [ 29.533164] dump_stack+0x1b2/0x281 [ 29.533174] panic+0x1f9/0x42d [ 29.533181] ? add_taint.cold+0x16/0x16 [ 29.533190] ? sysfs_warn_dup.cold+0x17/0x26 [ 29.533199] ? sysfs_warn_dup.cold+0x17/0x26 [ 29.533205] __warn.cold+0x20/0x44 [ 29.533215] ? ist_end_non_atomic+0x10/0x10 [ 29.533222] ? sysfs_warn_dup.cold+0x17/0x26 [ 29.533230] report_bug+0x208/0x250 [ 29.533241] do_error_trap+0x195/0x2d0 [ 29.533249] ? math_error+0x2d0/0x2d0 [ 29.533258] ? ___preempt_schedule+0x16/0x18 [ 29.533276] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.533287] invalid_op+0x1b/0x40 [ 29.533294] RIP: 0010:sysfs_warn_dup.cold+0x17/0x26 [ 29.533298] RSP: 0018:ffff8880b4bf7728 EFLAGS: 00010282 [ 29.550989] ------------[ cut here ]------------ [ 29.556045] RAX: 000000000000003a RBX: ffff8880b28b9d10 RCX: 0000000000000000 [ 29.563927] WARNING: CPU: 1 PID: 8018 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x26 [ 29.573248] RDX: 0000000000000000 RSI: ffffffff878bd020 RDI: ffffed101697eedb [ 29.575807] Modules linked in: [ 29.579413] RBP: ffff88809ecf4800 R08: 000000000000003a R09: 0000000000000000 [ 29.586536] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88823929a7e0 [ 29.590940] CPU: 1 PID: 8018 Comm: syz-executor951 Not tainted 4.14.302-syzkaller #0 [ 29.595320] R13: ffff8880b3a23380 R14: ffff8880b28b9d18 R15: ffff8880b2a35cd8 [ 29.598832] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 29.603147] ? sysfs_warn_dup.cold+0x17/0x26 [ 29.607533] task: ffff8880b2c76640 task.stack: ffff88809cac0000 [ 29.611143] sysfs_create_dir_ns+0x16f/0x1d0 [ 29.615028] RIP: 0010:sysfs_warn_dup.cold+0x17/0x26 [ 29.618807] kobject_add_internal+0x28b/0x930 [ 29.623187] RSP: 0018:ffff88809cac7728 EFLAGS: 00010282 [ 29.628106] kobject_init_and_add+0xde/0x120 [ 29.636527] ? kobject_create_and_add+0x200/0x200 [ 29.641862] RAX: 000000000000003a RBX: ffff88809ea71dd0 RCX: 0000000000000000 [ 29.641868] RDX: 0000000000000000 RSI: ffffffff878bd020 RDI: ffffed1013958edb [ 29.646604] ? vsnprintf+0x260/0x1340 [ 29.653851] RBP: ffff88809569e880 R08: 000000000000003a R09: 0000000000000001 [ 29.662064] gfs2_sys_fs_add+0x184/0x3f0 [ 29.669305] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88823929a7e0 [ 29.669311] R13: ffff8880b4b6b000 R14: ffff88809ea71dd8 R15: ffff88809e9cdd98 [ 29.672492] ? recover_store+0x100/0x100 [ 29.679752] FS: 0000555556a63300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 [ 29.687024] ? snprintf+0xa5/0xd0 [ 29.694887] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.702139] ? strscpy+0x94/0x280 [ 29.711467] CR2: 00005557b467e8b8 CR3: 000000009a2de000 CR4: 00000000003406e0 [ 29.711475] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.716035] fill_super+0x118b/0x2310 [ 29.722065] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.726477] ? vsnprintf+0x260/0x1340 [ 29.731460] Call Trace: [ 29.735936] ? gfs2_online_uevent+0x1b0/0x1b0 [ 29.741711] sysfs_create_dir_ns+0x16f/0x1d0 [ 29.746092] ? pointer+0x9e0/0x9e0 [ 29.750934] kobject_add_internal+0x28b/0x930 [ 29.758183] ? snprintf+0xa5/0xd0 [ 29.765539] kobject_init_and_add+0xde/0x120 [ 29.769332] ? vsprintf+0x30/0x30 [ 29.776582] ? kobject_create_and_add+0x200/0x200 [ 29.780618] ? gfs2_open+0x160/0x160 [ 29.787868] ? vsnprintf+0x260/0x1340 [ 29.795139] ? set_blocksize+0x125/0x380 [ 29.799188] gfs2_sys_fs_add+0x184/0x3f0 [ 29.807389] gfs2_mount+0x439/0x510 [ 29.810836] ? recover_store+0x100/0x100 [ 29.816706] ? fill_super+0x2310/0x2310 [ 29.820141] ? snprintf+0xa5/0xd0 [ 29.827403] ? alloc_pages_current+0x15d/0x260 [ 29.834641] ? strscpy+0x94/0x280 [ 29.838509] ? __lockdep_init_map+0x100/0x560 [ 29.845775] fill_super+0x118b/0x2310 [ 29.849566] mount_fs+0x92/0x2a0 [ 29.852131] ? vsnprintf+0x260/0x1340 [ 29.856607] vfs_kern_mount.part.0+0x5b/0x470 [ 29.860992] ? gfs2_online_uevent+0x1b0/0x1b0 [ 29.864517] do_mount+0xe65/0x2a30 [ 29.868993] ? pointer+0x9e0/0x9e0 [ 29.872422] ? do_raw_spin_unlock+0x164/0x220 [ 29.876805] ? snprintf+0xa5/0xd0 [ 29.880232] ? copy_mount_string+0x40/0x40 [ 29.885048] ? vsprintf+0x30/0x30 [ 29.888739] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 29.892514] ? gfs2_open+0x160/0x160 [ 29.896547] ? copy_mnt_ns+0xa30/0xa30 [ 29.900585] ? set_blocksize+0x125/0x380 [ 29.904189] ? copy_mount_options+0x1fa/0x2f0 [ 29.908227] gfs2_mount+0x439/0x510 [ 29.912171] ? copy_mnt_ns+0xa30/0xa30 [ 29.915603] ? fill_super+0x2310/0x2310 [ 29.920254] SyS_mount+0xa8/0x120 [ 29.923783] ? alloc_pages_current+0x15d/0x260 [ 29.928242] ? copy_mnt_ns+0xa30/0xa30 [ 29.932015] ? __lockdep_init_map+0x100/0x560 [ 29.935355] do_syscall_64+0x1d5/0x640 [ 29.939125] mount_fs+0x92/0x2a0 [ 29.943597] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 29.948325] vfs_kern_mount.part.0+0x5b/0x470 [ 29.951833] RIP: 0033:0x7f77eaaa06ca [ 29.955347] do_mount+0xe65/0x2a30 [ 29.959812] RSP: 002b:00007ffede802298 EFLAGS: 00000282 [ 29.963423] ? copy_mount_string+0x40/0x40 [ 29.967710] ORIG_RAX: 00000000000000a5 [ 29.971145] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 29.976131] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f77eaaa06ca [ 29.979823] ? copy_mnt_ns+0xa30/0xa30 [ 29.983786] RDX: 00000000200124c0 RSI: 0000000020012500 RDI: 00007ffede8022b0 [ 29.987837] ? copy_mount_options+0x1fa/0x2f0 [ 29.992295] RBP: 00007ffede8022b0 R08: 00007ffede8022f0 R09: 0000000000000002 [ 29.995903] ? copy_mnt_ns+0xa30/0xa30 [ 29.999938] R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000004 [ 30.003892] SyS_mount+0xa8/0x120 [ 30.007338] R13: 0000555556a632c0 R14: 0000000000000000 R15: 00007ffede8022f0 [ 30.011906] ? copy_mnt_ns+0xa30/0xa30 [ 30.119580] do_syscall_64+0x1d5/0x640 [ 30.123564] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 30.129019] RIP: 0033:0x7f77eaaa06ca [ 30.132718] RSP: 002b:00007ffede802298 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 30.140410] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f77eaaa06ca [ 30.147661] RDX: 00000000200124c0 RSI: 0000000020012500 RDI: 00007ffede8022b0 [ 30.154910] RBP: 00007ffede8022b0 R08: 00007ffede8022f0 R09: 0000000000000002 [ 30.162247] R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000004 [ 30.169671] R13: 0000555556a632c0 R14: 0000000000000000 R15: 00007ffede8022f0 [ 30.177135] 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 [ 30.196755] ---[ end trace eedea32a5b1afd1b ]--- [ 30.202099] Kernel Offset: disabled [ 30.205770] Rebooting in 86400 seconds..