sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' ------------[ cut here ]------------ sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' WARNING: CPU: 1 PID: 7976 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x26 fs/sysfs/dir.c:30 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 7976 Comm: syz-executor365 Not tainted 4.14.282-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 panic+0x1f9/0x42d kernel/panic.c:183 ------------[ cut here ]------------ __warn.cold+0x20/0x44 kernel/panic.c:547 WARNING: CPU: 0 PID: 7979 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x26 fs/sysfs/dir.c:30 Modules linked in: report_bug+0x208/0x250 lib/bug.c:183 CPU: 0 PID: 7979 Comm: syz-executor365 Not tainted 4.14.282-syzkaller #0 fixup_bug arch/x86/kernel/traps.c:177 [inline] fixup_bug arch/x86/kernel/traps.c:172 [inline] do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff888097506680 task.stack: ffff888095e70000 RIP: 0010:sysfs_warn_dup.cold+0x17/0x26 fs/sysfs/dir.c:30 RSP: 0018:ffff888095e77728 EFLAGS: 00010282 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:964 RAX: 000000000000003a RBX: ffff8880b31b5b90 RCX: 0000000000000000 RIP: 0010:sysfs_warn_dup.cold+0x17/0x26 fs/sysfs/dir.c:30 RDX: 0000000000000000 RSI: ffffffff878bc600 RDI: ffffed1012bceedb RSP: 0018:ffff88808fec7728 EFLAGS: 00010282 RBP: ffff888095f406c0 R08: 000000000000003a R09: 0000000000000001 RAX: 000000000000003a RBX: ffff888095f55ad0 RCX: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880b1327000 RDX: 0000000000000000 RSI: ffffffff878bc600 RDI: ffffed1011fd8edb RBP: ffff8880b3796dc0 R08: 000000000000003a R09: 0000000000000000 R13: ffff88809f55b340 R14: ffff8880b31b5b98 R15: ffff8880b4e49b58 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880b1327000 R13: ffff8880b49ffa80 R14: ffff888095f55ad8 R15: ffff8880958cdb18 FS: 00005555573ce300(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 sysfs_create_dir_ns+0x16f/0x1d0 fs/sysfs/dir.c:59 CR2: 00007f58d9f12a30 CR3: 0000000096829000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 create_dir lib/kobject.c:71 [inline] kobject_add_internal+0x28b/0x930 lib/kobject.c:229 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 kobject_add_varg lib/kobject.c:364 [inline] kobject_init_and_add+0xde/0x120 lib/kobject.c:436 Call Trace: sysfs_create_dir_ns+0x16f/0x1d0 fs/sysfs/dir.c:59 create_dir lib/kobject.c:71 [inline] kobject_add_internal+0x28b/0x930 lib/kobject.c:229 gfs2_sys_fs_add+0x184/0x3f0 fs/gfs2/sys.c:652 kobject_add_varg lib/kobject.c:364 [inline] kobject_init_and_add+0xde/0x120 lib/kobject.c:436 gfs2_sys_fs_add+0x184/0x3f0 fs/gfs2/sys.c:652 fill_super+0x118b/0x2310 fs/gfs2/ops_fstype.c:1122 fill_super+0x118b/0x2310 fs/gfs2/ops_fstype.c:1122 gfs2_mount+0x439/0x510 fs/gfs2/ops_fstype.c:1335 gfs2_mount+0x439/0x510 fs/gfs2/ops_fstype.c:1335 mount_fs+0x92/0x2a0 fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046 vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2572 [inline] do_mount+0xe65/0x2a30 fs/namespace.c:2905 mount_fs+0x92/0x2a0 fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046 vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2572 [inline] do_mount+0xe65/0x2a30 fs/namespace.c:2905 SYSC_mount fs/namespace.c:3121 [inline] SyS_mount+0xa8/0x120 fs/namespace.c:3098 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 SYSC_mount fs/namespace.c:3121 [inline] SyS_mount+0xa8/0x120 fs/namespace.c:3098 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f58d9ee449a do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 RSP: 002b:00007ffcbceeb7d8 EFLAGS: 00000282 entry_SYSCALL_64_after_hwframe+0x46/0xbb ORIG_RAX: 00000000000000a5 RIP: 0033:0x7f58d9ee449a RAX: ffffffffffffffda RBX: 00007ffcbceeb830 RCX: 00007f58d9ee449a RSP: 002b:00007ffcbceeb7d8 EFLAGS: 00000282 RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffcbceeb7f0 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffcbceeb830 RCX: 00007f58d9ee449a RBP: 00007ffcbceeb7f0 R08: 00007ffcbceeb830 R09: 0000000000000002 RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffcbceeb7f0 R10: 0000000000000000 R11: 0000000000000282 R12: 000000002000dca0 RBP: 00007ffcbceeb7f0 R08: 00007ffcbceeb830 R09: 0000000000000002 R10: 0000000000000000 R11: 0000000000000282 R12: 000000002000dca0 R13: 0000000000000003 R14: 0000000000000004 R15: 000000000000091c R13: 0000000000000003 R14: 0000000000000004 R15: 000000000000091c Code: bd ea ff ff ff e9 db e6 9f fa 4c 89 ff e8 10 09 7b fa eb da e8 69 50 51 fa 4c 89 ea 48 89 ee 48 c7 c7 c0 b8 95 87 e8 ff fb fe ff <0f> 0b 48 89 ef 5d 41 5c 41 5d e9 b8 de 7a fa e8 43 50 51 fa 4d ---[ end trace 39a465c0477931ba ]--- Kernel Offset: disabled Rebooting in 86400 seconds..