FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 0 sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' ------------[ cut here ]------------ ------------[ cut here ]------------ WARNING: CPU: 0 PID: 10289 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x26 fs/sysfs/dir.c:30 WARNING: CPU: 1 PID: 10287 at fs/sysfs/dir.c:30 sysfs_warn_dup.cold+0x17/0x26 fs/sysfs/dir.c:30 Kernel panic - not syncing: kernel: panic_on_warn set ... Modules linked in: CPU: 0 PID: 10289 Comm: syz-executor.4 Not tainted 4.14.305-syzkaller #0 CPU: 1 PID: 10287 Comm: syz-executor.3 Not tainted 4.14.305-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 Call Trace: task: ffff8880ab9ee440 task.stack: ffff888096d48000 __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 RIP: 0010:sysfs_warn_dup.cold+0x17/0x26 fs/sysfs/dir.c:30 panic+0x21d/0x451 kernel/panic.c:247 RSP: 0018:ffff888096d4f728 EFLAGS: 00010282 RAX: 000000000000003a RBX: ffff88808d824a10 RCX: 0000000000000000 RDX: 000000000000d3cf RSI: ffffffff81444380 RDI: ffffed1012da9edb RBP: ffff88808cbbcec0 R08: 000000000000003a R09: 0000000000000000 check_panic_on_warn.cold+0x19/0x35 kernel/panic.c:171 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888238f6dd20 __warn+0xdf/0x1e0 kernel/panic.c:603 R13: ffff8880a19083c0 R14: ffff88808d824a18 R15: ffff88808efa09d8 FS: 00007f869ee63700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 report_bug+0x208/0x250 lib/bug.c:183 CR2: 00007ffdf4dc2c10 CR3: 00000000a18ac000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 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 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 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 kobject_add_varg lib/kobject.c:364 [inline] kobject_init_and_add+0xde/0x120 lib/kobject.c:436 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:967 RIP: 0010:sysfs_warn_dup.cold+0x17/0x26 fs/sysfs/dir.c:30 RSP: 0018:ffff88804e2b7728 EFLAGS: 00010282 gfs2_sys_fs_add+0x184/0x3f0 fs/gfs2/sys.c:652 RAX: 000000000000003a RBX: ffff88808eff0a50 RCX: 0000000000000000 RDX: 000000000000c189 RSI: ffffffff81444380 RDI: ffffed1009c56edb RBP: ffff88808dade240 R08: 000000000000003a R09: 0000000000000000 fill_super+0x118b/0x2310 fs/gfs2/ops_fstype.c:1127 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888238f6dd20 R13: ffff8880af1bd240 R14: ffff88808eff0a58 R15: ffff88808d824a18 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 kobject_add_varg lib/kobject.c:364 [inline] kobject_init_and_add+0xde/0x120 lib/kobject.c:436 gfs2_mount+0x439/0x510 fs/gfs2/ops_fstype.c:1340 gfs2_sys_fs_add+0x184/0x3f0 fs/gfs2/sys.c:652 mount_fs+0x92/0x2a0 fs/super.c:1237 fill_super+0x118b/0x2310 fs/gfs2/ops_fstype.c:1127 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 gfs2_mount+0x439/0x510 fs/gfs2/ops_fstype.c:1340 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 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 mount_fs+0x92/0x2a0 fs/super.c:1237 RIP: 0033:0x7f86a08f262a vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046 RSP: 002b:00007f869ee62f88 EFLAGS: 00000202 vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2572 [inline] do_mount+0xe65/0x2a30 fs/namespace.c:2905 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00000000000133f4 RCX: 00007f86a08f262a RDX: 0000000020013400 RSI: 0000000020013440 RDI: 00007f869ee62fe0 RBP: 00007f869ee63020 R08: 00007f869ee63020 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020013400 R13: 0000000020013440 R14: 00007f869ee62fe0 R15: 0000000020013480 Code: SYSC_mount fs/namespace.c:3121 [inline] SyS_mount+0xa8/0x120 fs/namespace.c:3098 bd ea do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 ff entry_SYSCALL_64_after_hwframe+0x5e/0xd3 ff RIP: 0033:0x7fe00b95f62a ff RSP: 002b:00007fe009ecff88 EFLAGS: 00000202 e9 ORIG_RAX: 00000000000000a5 4f RAX: ffffffffffffffda RBX: 00000000000133e0 RCX: 00007fe00b95f62a 9c RDX: 0000000020013400 RSI: 0000000020013440 RDI: 00007fe009ecffe0 9f RBP: 00007fe009ed0020 R08: 00007fe009ed0020 R09: 0000000000000000 fa R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020013400 4c R13: 0000000020013440 R14: 00007fe009ecffe0 R15: 0000000020013480 89 ff e8 b4 b6 7a fa eb da e8 fd f3 50 fa 4c 89 ea 48 89 ee 48 c7 c7 80 c8 95 87 e8 fd fb fe ff <0f> 0b 48 89 ef 5d 41 5c 41 5d e9 8c 8c 7a fa e8 d7 f3 50 fa 4d ---[ end trace 9f60f92c6fdb6415 ]--- Kernel Offset: disabled Rebooting in 86400 seconds..