Warning: Permanently added '10.128.0.209' (ECDSA) to the list of known hosts. [ 37.842466] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 37.842550] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 37.861903] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 37.866109] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 37.881330] ------------[ cut here ]------------ [ 37.886210] WARNING: CPU: 1 PID: 7959 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x26 [ 37.886332] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 37.894418] Kernel panic - not syncing: panic_on_warn set ... [ 37.894418] [ 37.894426] CPU: 1 PID: 7959 Comm: syz-executor906 Not tainted 4.14.300-syzkaller #0 [ 37.894430] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 37.894433] Call Trace: [ 37.894447] dump_stack+0x1b2/0x281 [ 37.894456] panic+0x1f9/0x42d [ 37.894462] ? add_taint.cold+0x16/0x16 [ 37.894471] ? sysfs_warn_dup.cold+0x17/0x26 [ 37.894479] ? sysfs_warn_dup.cold+0x17/0x26 [ 37.894485] __warn.cold+0x20/0x44 [ 37.894493] ? ist_end_non_atomic+0x10/0x10 [ 37.894500] ? sysfs_warn_dup.cold+0x17/0x26 [ 37.894506] report_bug+0x208/0x250 [ 37.894515] do_error_trap+0x195/0x2d0 [ 37.902487] ------------[ cut here ]------------ [ 37.908610] ? math_error+0x2d0/0x2d0 [ 37.916468] WARNING: CPU: 0 PID: 7960 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x26 [ 37.925795] ? ___preempt_schedule+0x16/0x18 [ 37.928343] Modules linked in: [ 37.931948] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.939054] invalid_op+0x1b/0x40 [ 37.943434] CPU: 0 PID: 7960 Comm: syz-executor906 Not tainted 4.14.300-syzkaller #0 [ 37.947818] ? sysfs_warn_dup.cold+0x17/0x26 [ 37.951323] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 37.955619] ? sysfs_warn_dup.cold+0x17/0x26 [ 37.959996] task: ffff888096b48440 task.stack: ffff8880b3518000 [ 37.963603] ? sysfs_create_dir_ns+0x16f/0x1d0 [ 37.967460] RIP: 0010:sysfs_warn_dup.cold+0x17/0x26 [ 37.972190] ? kobject_add_internal+0x28b/0x930 [ 37.975952] RSP: 0018:ffff8880b351f728 EFLAGS: 00010282 [ 37.984160] ? kobject_init_and_add+0xde/0x120 [ 37.988536] RAX: 000000000000003a RBX: ffff888098199950 RCX: 0000000000000000 [ 37.991702] ? kobject_create_and_add+0x200/0x200 [ 37.996512] RDX: 0000000000000000 RSI: ffffffff878bd060 RDI: ffffed10166a3edb [ 37.999937] ? vsnprintf+0x260/0x1340 [ 38.007791] RBP: ffff8880965f4680 R08: 000000000000003a R09: 0000000000000000 [ 38.012176] ? gfs2_sys_fs_add+0x184/0x3f0 [ 38.021496] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880b13c41c0 [ 38.025970] ? recover_store+0x100/0x100 [ 38.031997] R13: ffff8880b4a70000 R14: ffff888098199958 R15: ffff888097d49918 [ 38.036552] ? snprintf+0xa5/0xd0 [ 38.041540] FS: 00005555568fa300(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 [ 38.046186] ? strscpy+0x94/0x280 [ 38.051515] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 38.056071] ? fill_super+0x118b/0x2310 [ 38.063310] CR2: 0000560fda336000 CR3: 00000000b4477000 CR4: 00000000003406f0 [ 38.063318] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 38.068136] ? vsnprintf+0x260/0x1340 [ 38.075379] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 38.079156] ? gfs2_online_uevent+0x1b0/0x1b0 [ 38.086572] Call Trace: [ 38.090786] ? pointer+0x9e0/0x9e0 [ 38.098028] sysfs_create_dir_ns+0x16f/0x1d0 [ 38.102062] ? snprintf+0xa5/0xd0 [ 38.109304] kobject_add_internal+0x28b/0x930 [ 38.112726] ? vsprintf+0x30/0x30 [ 38.120948] kobject_init_and_add+0xde/0x120 [ 38.124368] ? gfs2_open+0x160/0x160 [ 38.130224] ? kobject_create_and_add+0x200/0x200 [ 38.134169] ? set_blocksize+0x125/0x380 [ 38.141424] ? vsnprintf+0x260/0x1340 [ 38.148669] ? gfs2_mount+0x439/0x510 [ 38.152443] gfs2_sys_fs_add+0x184/0x3f0 [ 38.159684] ? fill_super+0x2310/0x2310 [ 38.164148] ? recover_store+0x100/0x100 [ 38.166719] ? alloc_pages_current+0x15d/0x260 [ 38.170226] ? snprintf+0xa5/0xd0 [ 38.174607] ? __lockdep_init_map+0x100/0x560 [ 38.178032] ? strscpy+0x94/0x280 [ 38.182497] ? mount_fs+0x92/0x2a0 [ 38.185924] fill_super+0x118b/0x2310 [ 38.190307] ? vfs_kern_mount.part.0+0x5b/0x470 [ 38.193996] ? vsnprintf+0x260/0x1340 [ 38.198832] ? do_mount+0xe65/0x2a30 [ 38.202865] ? gfs2_online_uevent+0x1b0/0x1b0 [ 38.206730] ? copy_mount_string+0x40/0x40 [ 38.210500] ? pointer+0x9e0/0x9e0 [ 38.214539] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 38.218488] ? snprintf+0xa5/0xd0 [ 38.222520] ? copy_mnt_ns+0xa30/0xa30 [ 38.227077] ? vsprintf+0x30/0x30 [ 38.230503] ? copy_mount_options+0x1fa/0x2f0 [ 38.234969] ? gfs2_open+0x160/0x160 [ 38.238394] ? copy_mnt_ns+0xa30/0xa30 [ 38.241930] ? set_blocksize+0x125/0x380 [ 38.245701] ? SyS_mount+0xa8/0x120 [ 38.250343] gfs2_mount+0x439/0x510 [ 38.254468] ? copy_mnt_ns+0xa30/0xa30 [ 38.258162] ? fill_super+0x2310/0x2310 [ 38.262632] ? do_syscall_64+0x1d5/0x640 [ 38.266855] ? alloc_pages_current+0x15d/0x260 [ 38.270368] ? entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 38.275352] ? __lockdep_init_map+0x100/0x560 [ 38.335552] mount_fs+0x92/0x2a0 [ 38.338909] vfs_kern_mount.part.0+0x5b/0x470 [ 38.343390] do_mount+0xe65/0x2a30 [ 38.346914] ? do_raw_spin_unlock+0x164/0x220 [ 38.351485] ? copy_mount_string+0x40/0x40 [ 38.355704] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 38.360703] ? copy_mnt_ns+0xa30/0xa30 [ 38.364573] ? copy_mount_options+0x1fa/0x2f0 [ 38.369052] ? copy_mnt_ns+0xa30/0xa30 [ 38.372923] SyS_mount+0xa8/0x120 [ 38.376358] ? copy_mnt_ns+0xa30/0xa30 [ 38.380229] do_syscall_64+0x1d5/0x640 [ 38.384105] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 38.389284] Code: bd ea ff ff ff e9 69 d3 9f fa 4c 89 ff e8 be ed 7a fa eb da e8 f7 2f 51 fa 4c 89 ea 48 89 ee 48 c7 c7 c0 c4 95 87 e8 04 fc fe ff <0f> 0b 48 89 ef 5d 41 5c 41 5d e9 96 c3 7a fa e8 d1 2f 51 fa 4d [ 38.408552] ---[ end trace ebbc2c2b65dddbc1 ]--- [ 38.413493] Kernel Offset: disabled [ 38.417178] Rebooting in 86400 seconds..