Warning: Permanently added '10.128.0.195' (ECDSA) to the list of known hosts. syzkaller login: [ 32.274942] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 32.277351] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 32.304655] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 32.317275] gfs2: fsid=syz:syz: Now mounting FS... [ 32.337753] ------------[ cut here ]------------ [ 32.342571] WARNING: CPU: 0 PID: 7970 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x26 [ 32.343230] ------------[ cut here ]------------ [ 32.350796] Kernel panic - not syncing: panic_on_warn set ... [ 32.350796] [ 32.355556] WARNING: CPU: 1 PID: 7977 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x26 [ 32.362884] CPU: 0 PID: 7970 Comm: syz-executor251 Not tainted 4.14.302-syzkaller #0 [ 32.371093] Modules linked in: [ 32.378967] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 32.382143] Call Trace: [ 32.391502] CPU: 1 PID: 7977 Comm: syz-executor251 Not tainted 4.14.302-syzkaller #0 [ 32.394082] dump_stack+0x1b2/0x281 [ 32.401926] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 32.405563] panic+0x1f9/0x42d [ 32.414904] task: ffff8880b4fdc2c0 task.stack: ffff8880b3fb0000 [ 32.418079] ? add_taint.cold+0x16/0x16 [ 32.424114] RIP: 0010:sysfs_warn_dup.cold+0x17/0x26 [ 32.428067] ? sysfs_warn_dup.cold+0x17/0x26 [ 32.433085] RSP: 0018:ffff8880b3fb7728 EFLAGS: 00010282 [ 32.437485] ? sysfs_warn_dup.cold+0x17/0x26 [ 32.442824] RAX: 000000000000003a RBX: ffff888095791bd0 RCX: 0000000000000000 [ 32.447211] __warn.cold+0x20/0x44 [ 32.454457] RDX: 0000000000000000 RSI: ffffffff878bd020 RDI: ffffed10167f6edb [ 32.454462] RBP: ffff8880b296c300 R08: 000000000000003a R09: 0000000000000000 [ 32.457984] ? ist_end_non_atomic+0x10/0x10 [ 32.465227] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880b0e7b620 [ 32.472479] ? sysfs_warn_dup.cold+0x17/0x26 [ 32.476789] R13: ffff8880a42bd940 R14: ffff888095791bd8 R15: ffff8880b2c7db98 [ 32.484043] report_bug+0x208/0x250 [ 32.488441] FS: 000055555589e300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 [ 32.495696] do_error_trap+0x195/0x2d0 [ 32.499316] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 32.507520] ? math_error+0x2d0/0x2d0 [ 32.511379] CR2: 00007fffaef9af90 CR3: 00000000b3ed9000 CR4: 00000000003406e0 [ 32.517245] ? ___preempt_schedule+0x16/0x18 [ 32.521018] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 32.528269] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 32.532671] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 32.539925] invalid_op+0x1b/0x40 [ 32.544734] Call Trace: [ 32.551991] RIP: 0010:sysfs_warn_dup.cold+0x17/0x26 [ 32.555422] sysfs_create_dir_ns+0x16f/0x1d0 [ 32.557974] RSP: 0018:ffff8880b34a7728 EFLAGS: 00010282 [ 32.562979] kobject_add_internal+0x28b/0x930 [ 32.567358] RAX: 000000000000003a RBX: ffff888095799c10 RCX: 0000000000000000 [ 32.572702] kobject_init_and_add+0xde/0x120 [ 32.577169] RDX: 0000000000000000 RSI: ffffffff878bd020 RDI: ffffed1016694edb [ 32.584424] ? kobject_create_and_add+0x200/0x200 [ 32.588825] RBP: ffff888095cb45c0 R08: 000000000000003a R09: 0000000000000000 [ 32.596077] ? vsnprintf+0x260/0x1340 [ 32.600905] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880b0e7b620 [ 32.608172] gfs2_sys_fs_add+0x184/0x3f0 [ 32.612029] R13: ffff88809fbae700 R14: ffff888095799c18 R15: ffff888095791bd8 [ 32.619367] ? recover_store+0x100/0x100 [ 32.623431] ? sysfs_warn_dup.cold+0x17/0x26 [ 32.630673] ? snprintf+0xa5/0xd0 [ 32.634712] sysfs_create_dir_ns+0x16f/0x1d0 [ 32.639104] ? strscpy+0x94/0x280 [ 32.642531] kobject_add_internal+0x28b/0x930 [ 32.646932] fill_super+0x118b/0x2310 [ 32.650750] kobject_init_and_add+0xde/0x120 [ 32.655216] ? vsnprintf+0x260/0x1340 [ 32.659074] ? kobject_create_and_add+0x200/0x200 [ 32.663465] ? gfs2_online_uevent+0x1b0/0x1b0 [ 32.667243] ? vsnprintf+0x260/0x1340 [ 32.672064] ? pointer+0x9e0/0x9e0 [ 32.676542] gfs2_sys_fs_add+0x184/0x3f0 [ 32.680316] ? snprintf+0xa5/0xd0 [ 32.683829] ? recover_store+0x100/0x100 [ 32.687866] ? vsprintf+0x30/0x30 [ 32.691323] ? snprintf+0xa5/0xd0 [ 32.695369] ? gfs2_open+0x160/0x160 [ 32.698829] ? strscpy+0x94/0x280 [ 32.702259] ? set_blocksize+0x125/0x380 [ 32.705945] fill_super+0x118b/0x2310 [ 32.709378] gfs2_mount+0x439/0x510 [ 32.713416] ? vsnprintf+0x260/0x1340 [ 32.717190] ? fill_super+0x2310/0x2310 [ 32.720795] ? gfs2_online_uevent+0x1b0/0x1b0 [ 32.724587] ? alloc_pages_current+0x15d/0x260 [ 32.728525] ? pointer+0x9e0/0x9e0 [ 32.732999] ? __lockdep_init_map+0x100/0x560 [ 32.737564] ? snprintf+0xa5/0xd0 [ 32.741113] mount_fs+0x92/0x2a0 [ 32.745583] ? vsprintf+0x30/0x30 [ 32.749019] vfs_kern_mount.part.0+0x5b/0x470 [ 32.752357] ? gfs2_open+0x160/0x160 [ 32.755787] do_mount+0xe65/0x2a30 [ 32.760266] ? set_blocksize+0x125/0x380 [ 32.763957] ? do_raw_spin_unlock+0x164/0x220 [ 32.767490] gfs2_mount+0x439/0x510 [ 32.771534] ? copy_mount_string+0x40/0x40 [ 32.776010] ? fill_super+0x2310/0x2310 [ 32.779614] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 32.783843] ? alloc_pages_current+0x15d/0x260 [ 32.787779] ? copy_mnt_ns+0xa30/0xa30 [ 32.792944] ? __lockdep_init_map+0x100/0x560 [ 32.797500] ? copy_mount_options+0x1fa/0x2f0 [ 32.801360] mount_fs+0x92/0x2a0 [ 32.805829] ? copy_mnt_ns+0xa30/0xa30 [ 32.810306] vfs_kern_mount.part.0+0x5b/0x470 [ 32.813645] SyS_mount+0xa8/0x120 [ 32.817530] do_mount+0xe65/0x2a30 [ 32.821997] ? copy_mnt_ns+0xa30/0xa30 [ 32.825428] ? do_raw_spin_unlock+0x164/0x220 [ 32.828942] do_syscall_64+0x1d5/0x640 [ 32.832805] ? copy_mount_string+0x40/0x40 [ 32.837278] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 32.841138] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 32.845348] RIP: 0033:0x7fe6a55d36ca [ 32.850516] ? copy_mnt_ns+0xa30/0xa30 [ 32.855506] RSP: 002b:00007ffe7e1bd238 EFLAGS: 00000282 [ 32.859197] ? copy_mount_options+0x1fa/0x2f0 [ 32.863056] ORIG_RAX: 00000000000000a5 [ 32.868403] ? copy_mnt_ns+0xa30/0xa30 [ 32.872885] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fe6a55d36ca [ 32.876855] SyS_mount+0xa8/0x120 [ 32.880712] RDX: 0000000020037f40 RSI: 0000000020037f80 RDI: 00007ffe7e1bd250 [ 32.887967] ? copy_mnt_ns+0xa30/0xa30 [ 32.891383] RBP: 00007ffe7e1bd250 R08: 00007ffe7e1bd290 R09: 0000000000000002 [ 32.898637] do_syscall_64+0x1d5/0x640 [ 32.902495] R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000004 [ 32.909750] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 32.913605] R13: 000055555589e2c0 R14: 0000000000000000 R15: 00007ffe7e1bd290 [ 32.920858] RIP: 0033:0x7fe6a55d36ca [ 32.926025] Code: bd [ 32.933283] RSP: 002b:00007ffe7e1bd238 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 32.936979] ea [ 32.939368] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fe6a55d36ca [ 32.947045] ff [ 32.948912] RDX: 0000000020037f40 RSI: 0000000020037f80 RDI: 00007ffe7e1bd250 [ 32.956159] ff [ 32.958133] RBP: 00007ffe7e1bd250 R08: 00007ffe7e1bd290 R09: 0000000000000002 [ 32.965378] ff [ 32.967245] R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000004 [ 32.974509] e9 [ 32.976381] R13: 000055555589e2c0 R14: 0000000000000000 R15: 00007ffe7e1bd290 [ 32.983626] 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 [ 33.009835] ---[ end trace 835b65ad28a27b7d ]--- [ 33.014753] Kernel Offset: disabled [ 33.018422] Rebooting in 86400 seconds..