Warning: Permanently added '10.128.0.74' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 33.276406] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 33.283377] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 33.290611] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz" [ 33.306185] ------------[ cut here ]------------ [ 33.310975] WARNING: CPU: 1 PID: 8001 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x26 [ 33.319200] Kernel panic - not syncing: panic_on_warn set ... [ 33.319200] [ 33.326654] CPU: 1 PID: 8001 Comm: syz-executor791 Not tainted 4.14.304-syzkaller #0 [ 33.334531] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 33.343883] Call Trace: [ 33.346472] dump_stack+0x1b2/0x281 [ 33.350139] panic+0x1f9/0x42d [ 33.353331] ? add_taint.cold+0x16/0x16 [ 33.357306] ? sysfs_warn_dup.cold+0x17/0x26 [ 33.362067] ? sysfs_warn_dup.cold+0x17/0x26 [ 33.366474] __warn.cold+0x20/0x44 [ 33.370023] ? ist_end_non_atomic+0x10/0x10 [ 33.374343] ? sysfs_warn_dup.cold+0x17/0x26 [ 33.378750] report_bug+0x208/0x250 [ 33.382379] do_error_trap+0x195/0x2d0 [ 33.386268] ? math_error+0x2d0/0x2d0 [ 33.390066] ? ___preempt_schedule+0x16/0x18 [ 33.394512] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.399351] invalid_op+0x1b/0x40 [ 33.402799] RIP: 0010:sysfs_warn_dup.cold+0x17/0x26 [ 33.407888] RSP: 0018:ffff8880958f7728 EFLAGS: 00010282 [ 33.413254] RAX: 000000000000003a RBX: ffff88809ad59c10 RCX: 0000000000000000 [ 33.420519] RDX: 0000000000000000 RSI: ffffffff878bd020 RDI: ffffed1012b1eedb [ 33.422654] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 33.427796] RBP: ffff88809959aa40 R08: 000000000000003a R09: 0000000000000000 [ 33.427800] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8882393d61c0 [ 33.427805] R13: ffff8880a8c3a540 R14: ffff88809ad59c18 R15: ffff8880a0a55b98 [ 33.427829] ? sysfs_warn_dup.cold+0x17/0x26 [ 33.427839] sysfs_create_dir_ns+0x16f/0x1d0 [ 33.427848] kobject_add_internal+0x28b/0x930 [ 33.427859] kobject_init_and_add+0xde/0x120 [ 33.427869] ? kobject_create_and_add+0x200/0x200 [ 33.452703] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 33.456337] ? vsnprintf+0x260/0x1340 [ 33.456354] gfs2_sys_fs_add+0x184/0x3f0 [ 33.456363] ? recover_store+0x100/0x100 [ 33.456372] ? snprintf+0xa5/0xd0 [ 33.456382] ? strscpy+0x94/0x280 [ 33.468534] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 33.469684] fill_super+0x118b/0x2310 [ 33.469698] ? vsnprintf+0x260/0x1340 [ 33.469710] ? gfs2_online_uevent+0x1b0/0x1b0 [ 33.469718] ? pointer+0x9e0/0x9e0 [ 33.474289] ------------[ cut here ]------------ [ 33.478940] ? snprintf+0xa5/0xd0 [ 33.485596] WARNING: CPU: 0 PID: 8000 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x26 [ 33.489382] ? vsprintf+0x30/0x30 [ 33.493506] Modules linked in: [ 33.497571] ? gfs2_open+0x160/0x160 [ 33.504448] ? set_blocksize+0x125/0x380 [ 33.511083] CPU: 0 PID: 8000 Comm: syz-executor791 Not tainted 4.14.304-syzkaller #0 [ 33.514862] gfs2_mount+0x439/0x510 [ 33.518630] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 33.523106] ? fill_super+0x2310/0x2310 [ 33.526670] task: ffff8880b3b0a0c0 task.stack: ffff8880b3630000 [ 33.531436] ? alloc_pages_current+0x15d/0x260 [ 33.534860] RIP: 0010:sysfs_warn_dup.cold+0x17/0x26 [ 33.543072] ? __lockdep_init_map+0x100/0x560 [ 33.546491] RSP: 0018:ffff8880b3637728 EFLAGS: 00010282 [ 33.549669] mount_fs+0x92/0x2a0 [ 33.553355] RAX: 000000000000003a RBX: ffff888095591cd0 RCX: 0000000000000000 [ 33.557401] vfs_kern_mount.part.0+0x5b/0x470 [ 33.565249] RDX: 0000000000000000 RSI: ffffffff878bd020 RDI: ffffed10166c6edb [ 33.568868] do_mount+0xe65/0x2a30 [ 33.568881] ? retint_kernel+0x2d/0x2d [ 33.578401] RBP: ffff8880957dcec0 R08: 000000000000003a R09: 0000000000000001 [ 33.582362] ? copy_mount_string+0x40/0x40 [ 33.588402] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8882393d61c0 [ 33.592961] ? memset+0x20/0x40 [ 33.597948] R13: ffff8880ae77e980 R14: ffff888095591cd8 R15: ffff8880b1099c98 [ 33.602424] ? copy_mount_options+0x1fa/0x2f0 [ 33.607867] FS: 0000555556ede300(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 [ 33.611206] ? copy_mnt_ns+0xa30/0xa30 [ 33.618450] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 33.622925] SyS_mount+0xa8/0x120 [ 33.630193] CR2: 000055b5a50da848 CR3: 0000000098bb8000 CR4: 00000000003406f0 [ 33.630201] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.633720] ? copy_mnt_ns+0xa30/0xa30 [ 33.637578] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 33.645146] do_syscall_64+0x1d5/0x640 [ 33.649351] Call Trace: [ 33.656692] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 33.659946] sysfs_create_dir_ns+0x16f/0x1d0 [ 33.667223] RIP: 0033:0x7f497530f6fa [ 33.671727] kobject_add_internal+0x28b/0x930 [ 33.679932] RSP: 002b:00007ffedb995818 EFLAGS: 00000282 [ 33.683812] kobject_init_and_add+0xde/0x120 [ 33.689694] ORIG_RAX: 00000000000000a5 [ 33.689702] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f497530f6fa [ 33.693153] ? kobject_create_and_add+0x200/0x200 [ 33.700477] RDX: 0000000020049280 RSI: 00000000200492c0 RDI: 00007ffedb995830 [ 33.707730] ? vsnprintf+0x260/0x1340 [ 33.711596] RBP: 00007ffedb995830 R08: 00007ffedb995870 R09: 0000000000000002 [ 33.718852] gfs2_sys_fs_add+0x184/0x3f0 [ 33.722720] R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000004 [ 33.722726] R13: 0000555556ede2c0 R14: 0000000000000000 R15: 00007ffedb995870 [ 33.725288] ? recover_store+0x100/0x100 [ 33.809651] ? snprintf+0xa5/0xd0 [ 33.813094] ? strscpy+0x94/0x280 [ 33.816974] fill_super+0x118b/0x2310 [ 33.820768] ? vsnprintf+0x260/0x1340 [ 33.824552] ? gfs2_online_uevent+0x1b0/0x1b0 [ 33.829032] ? pointer+0x9e0/0x9e0 [ 33.832559] ? snprintf+0xa5/0xd0 [ 33.835997] ? vsprintf+0x30/0x30 [ 33.839440] ? gfs2_open+0x160/0x160 [ 33.843140] ? set_blocksize+0x125/0x380 [ 33.847186] gfs2_mount+0x439/0x510 [ 33.850804] ? fill_super+0x2310/0x2310 [ 33.854802] ? alloc_pages_current+0x15d/0x260 [ 33.859369] ? __lockdep_init_map+0x100/0x560 [ 33.863850] mount_fs+0x92/0x2a0 [ 33.867213] vfs_kern_mount.part.0+0x5b/0x470 [ 33.871781] do_mount+0xe65/0x2a30 [ 33.875308] ? retint_kernel+0x2d/0x2d [ 33.879178] ? copy_mount_string+0x40/0x40 [ 33.883399] ? memset+0x20/0x40 [ 33.886665] ? copy_mount_options+0x1fa/0x2f0 [ 33.891149] ? copy_mnt_ns+0xa30/0xa30 [ 33.895018] SyS_mount+0xa8/0x120 [ 33.898548] ? copy_mnt_ns+0xa30/0xa30 [ 33.902421] do_syscall_64+0x1d5/0x640 [ 33.906297] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 33.911469] RIP: 0033:0x7f497530f6fa [ 33.915165] RSP: 002b:00007ffedb995818 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 33.922855] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f497530f6fa [ 33.930110] RDX: 0000000020049280 RSI: 00000000200492c0 RDI: 00007ffedb995830 [ 33.937362] RBP: 00007ffedb995830 R08: 00007ffedb995870 R09: 0000000000000002 [ 33.944619] R10: 0000000000000000 R11: 0000000000000282 R12: 0000000000000004 [ 33.951879] R13: 0000555556ede2c0 R14: 0000000000000000 R15: 00007ffedb995870 [ 33.959143] Code: bd ea ff ff ff e9 d9 9a 9f fa 4c 89 ff e8 3e b5 7a fa eb da e8 77 f2 50 fa 4c 89 ea 48 89 ee 48 c7 c7 c0 c4 95 87 e8 e9 fb fe ff <0f> 0b 48 89 ef 5d 41 5c 41 5d e9 16 8b 7a fa e8 51 f2 50 fa 4d [ 33.978328] ---[ end trace 4d42b0fee0c372ee ]--- [ 33.983260] Kernel Offset: disabled [ 33.986925] Rebooting in 86400 seconds..