Warning: Permanently added '10.128.0.33' (ECDSA) to the list of known hosts. syzkaller login: [ 48.256253] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 48.290591] gfs2: fsid=syz:syz: Now mounting FS... [ 48.300405] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 48.309823] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 48.328853] ------------[ cut here ]------------ [ 48.333644] WARNING: CPU: 0 PID: 7982 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x26 [ 48.340044] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 48.341953] Kernel panic - not syncing: panic_on_warn set ... [ 48.341953] [ 48.341962] CPU: 0 PID: 7982 Comm: syz-executor291 Not tainted 4.14.302-syzkaller #0 [ 48.341967] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 48.341971] Call Trace: [ 48.341984] dump_stack+0x1b2/0x281 [ 48.341994] panic+0x1f9/0x42d [ 48.350187] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 48.356430] ? add_taint.cold+0x16/0x16 [ 48.356442] ? sysfs_warn_dup.cold+0x17/0x26 [ 48.356450] ? sysfs_warn_dup.cold+0x17/0x26 [ 48.356456] __warn.cold+0x20/0x44 [ 48.356464] ? ist_end_non_atomic+0x10/0x10 [ 48.356470] ? sysfs_warn_dup.cold+0x17/0x26 [ 48.356478] report_bug+0x208/0x250 [ 48.356487] do_error_trap+0x195/0x2d0 [ 48.356494] ? math_error+0x2d0/0x2d0 [ 48.356501] ? ___preempt_schedule+0x16/0x18 [ 48.356511] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.356522] invalid_op+0x1b/0x40 [ 48.356533] RIP: 0010:sysfs_warn_dup.cold+0x17/0x26 [ 48.376097] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 48.376854] RSP: 0018:ffff88808fe7f728 EFLAGS: 00010282 [ 48.376863] RAX: 000000000000003a RBX: ffff888091719b10 RCX: 0000000000000000 [ 48.376868] RDX: 0000000000000000 RSI: ffffffff878bd020 RDI: ffffed1011fcfedb [ 48.376872] RBP: ffff88809589abc0 R08: 000000000000003a R09: 0000000000000000 [ 48.376878] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880b0f35e00 [ 48.380614] ------------[ cut here ]------------ [ 48.383666] R13: ffff8880a93c0a80 R14: ffff888091719b18 R15: ffff8880b2a25ad8 [ 48.390320] WARNING: CPU: 1 PID: 7986 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x26 [ 48.394462] ? sysfs_warn_dup.cold+0x17/0x26 [ 48.398925] Modules linked in: [ 48.403336] sysfs_create_dir_ns+0x16f/0x1d0 [ 48.411340] kobject_add_internal+0x28b/0x930 [ 48.415726] CPU: 1 PID: 7986 Comm: syz-executor291 Not tainted 4.14.302-syzkaller #0 [ 48.419427] kobject_init_and_add+0xde/0x120 [ 48.423967] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 48.423978] task: ffff888090772300 task.stack: ffff88808ff18000 [ 48.427787] ? kobject_create_and_add+0x200/0x200 [ 48.432187] RIP: 0010:sysfs_warn_dup.cold+0x17/0x26 [ 48.437107] ? vsnprintf+0x260/0x1340 [ 48.440794] RSP: 0018:ffff88808ff1f728 EFLAGS: 00010282 [ 48.446316] gfs2_sys_fs_add+0x184/0x3f0 [ 48.458463] ? recover_store+0x100/0x100 [ 48.465798] RAX: 000000000000003a RBX: ffff88809398dc10 RCX: 0000000000000000 [ 48.473050] ? snprintf+0xa5/0xd0 [ 48.480297] RDX: 0000000000000000 RSI: ffffffff878bd020 RDI: ffffed1011fe3edb [ 48.487553] ? strscpy+0x94/0x280 [ 48.492318] RBP: ffff8880b2828e40 R08: 000000000000003a R09: 0000000000000001 [ 48.492324] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880b0f35e00 [ 48.499580] fill_super+0x118b/0x2310 [ 48.508050] R13: ffff8880a8d65600 R14: ffff88809398dc18 R15: ffff8880b1871bd8 [ 48.508057] FS: 00005555573ea300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 [ 48.512535] ? vsnprintf+0x260/0x1340 [ 48.515705] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.520092] ? gfs2_online_uevent+0x1b0/0x1b0 [ 48.524561] CR2: 00007eff41bd2f90 CR3: 00000000b074b000 CR4: 00000000003406e0 [ 48.532416] ? pointer+0x9e0/0x9e0 [ 48.536798] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 48.546222] ? snprintf+0xa5/0xd0 [ 48.552254] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 48.557162] ? vsprintf+0x30/0x30 [ 48.563000] Call Trace: [ 48.566785] ? gfs2_open+0x160/0x160 [ 48.572129] sysfs_create_dir_ns+0x16f/0x1d0 [ 48.576338] ? set_blocksize+0x125/0x380 [ 48.580381] kobject_add_internal+0x28b/0x930 [ 48.587718] gfs2_mount+0x439/0x510 [ 48.591151] kobject_init_and_add+0xde/0x120 [ 48.598398] ? fill_super+0x2310/0x2310 [ 48.601829] ? kobject_create_and_add+0x200/0x200 [ 48.609355] ? alloc_pages_current+0x15d/0x260 [ 48.616605] ? vsnprintf+0x260/0x1340 [ 48.620380] ? __lockdep_init_map+0x100/0x560 [ 48.627630] gfs2_sys_fs_add+0x184/0x3f0 [ 48.635918] mount_fs+0x92/0x2a0 [ 48.639697] ? recover_store+0x100/0x100 [ 48.645754] vfs_kern_mount.part.0+0x5b/0x470 [ 48.650570] ? snprintf+0xa5/0xd0 [ 48.657824] do_mount+0xe65/0x2a30 [ 48.661352] ? strscpy+0x94/0x280 [ 48.668708] ? do_raw_spin_unlock+0x164/0x220 [ 48.672146] fill_super+0x118b/0x2310 [ 48.679431] ? copy_mount_string+0x40/0x40 [ 48.682869] ? vsnprintf+0x260/0x1340 [ 48.685439] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 48.689145] ? gfs2_online_uevent+0x1b0/0x1b0 [ 48.693581] ? copy_mnt_ns+0xa30/0xa30 [ 48.697623] ? pointer+0x9e0/0x9e0 [ 48.702359] ? copy_mount_options+0x1fa/0x2f0 [ 48.705969] ? snprintf+0xa5/0xd0 [ 48.710351] ? copy_mnt_ns+0xa30/0xa30 [ 48.714301] ? vsprintf+0x30/0x30 [ 48.719122] SyS_mount+0xa8/0x120 [ 48.723710] ? gfs2_open+0x160/0x160 [ 48.727489] ? copy_mnt_ns+0xa30/0xa30 [ 48.731964] ? set_blocksize+0x125/0x380 [ 48.731975] gfs2_mount+0x439/0x510 [ 48.736015] do_syscall_64+0x1d5/0x640 [ 48.739372] ? fill_super+0x2310/0x2310 [ 48.743415] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 48.747899] ? alloc_pages_current+0x15d/0x260 [ 48.751316] RIP: 0033:0x7eff41bff6da [ 48.754835] ? __lockdep_init_map+0x100/0x560 [ 48.758362] RSP: 002b:00007ffc44f00048 EFLAGS: 00000282 [ 48.762864] mount_fs+0x92/0x2a0 [ 48.766816] ORIG_RAX: 00000000000000a5 [ 48.771473] vfs_kern_mount.part.0+0x5b/0x470 [ 48.775337] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007eff41bff6da [ 48.780333] do_mount+0xe65/0x2a30 [ 48.784801] RDX: 0000000020013400 RSI: 0000000020013440 RDI: 00007ffc44f00060 [ 48.788670] ? do_raw_spin_unlock+0x164/0x220 [ 48.792182] RBP: 00007ffc44f00060 R08: 00007ffc44f000a0 R09: 0000000000000002 [ 48.796663] ? copy_mount_string+0x40/0x40 [ 48.800154] R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000004 [ 48.804023] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 48.807456] R13: 00005555573ea2c0 R14: 0000000000000000 R15: 00007ffc44f000a0 [ 48.810898] ? copy_mnt_ns+0xa30/0xa30 [ 48.928314] ? copy_mount_options+0x1fa/0x2f0 [ 48.932977] ? copy_mnt_ns+0xa30/0xa30 [ 48.937294] SyS_mount+0xa8/0x120 [ 48.940823] ? copy_mnt_ns+0xa30/0xa30 [ 48.944767] do_syscall_64+0x1d5/0x640 [ 48.948672] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 48.953852] RIP: 0033:0x7eff41bff6da [ 48.957549] RSP: 002b:00007ffc44f00048 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 48.965244] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007eff41bff6da [ 48.972502] RDX: 0000000020013400 RSI: 0000000020013440 RDI: 00007ffc44f00060 [ 48.980499] RBP: 00007ffc44f00060 R08: 00007ffc44f000a0 R09: 0000000000000002 [ 48.987758] R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000004 [ 48.995100] R13: 00005555573ea2c0 R14: 0000000000000000 R15: 00007ffc44f000a0 [ 49.002375] 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 [ 49.021666] ---[ end trace 23269b37dc0b542b ]--- [ 49.026782] Kernel Offset: disabled [ 49.030448] Rebooting in 86400 seconds..