Hello, syzbot found the following issue on: HEAD commit: 6879c2d3b960 Merge tag 'pinctrl-v6.0-2' of git://git.kerne.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=154d7fbf080000 kernel config: https://syzkaller.appspot.com/x/.config?x=9e66520f224211a2 dashboard link: https://syzkaller.appspot.com/bug?extid=39d19414bd6553c23c40 compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+39d19414bd6553c23c40@xxxxxxxxxxxxxxxxxxxxxxxxx BUG: looking up invalid subclass: 4294967295 turning off the locking correctness validator. CPU: 0 PID: 23921 Comm: syz-executor.4 Not tainted 6.0.0-rc5-syzkaller-00089-g6879c2d3b960 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 look_up_lock_class+0xdf/0x120 kernel/locking/lockdep.c:900 register_lock_class+0xfe/0x9b0 kernel/locking/lockdep.c:1287 __lock_acquire+0xe4/0x1f60 kernel/locking/lockdep.c:4932 lock_acquire+0x1a7/0x400 kernel/locking/lockdep.c:5666 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:349 [inline] iput_final fs/inode.c:1737 [inline] iput+0x3ee/0x760 fs/inode.c:1774 ntfs_fill_super+0x3c6c/0x4420 fs/ntfs3/super.c:1190 get_tree_bdev+0x400/0x620 fs/super.c:1323 vfs_get_tree+0x88/0x270 fs/super.c:1530 do_new_mount+0x289/0xad0 fs/namespace.c:3040 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x2e3/0x3d0 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fc89668a93a Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc8977aef88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007fc89668a93a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fc8977aefe0 RBP: 00007fc8977af020 R08: 00007fc8977af020 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000 R13: 0000000020000100 R14: 00007fc8977aefe0 R15: 0000000020003580 </TASK> ================================================================================ UBSAN: array-index-out-of-bounds in kernel/locking/lockdep.c:1298:27 index 4294967295 is out of range for type 'struct lockdep_subclass_key [8]' CPU: 0 PID: 23921 Comm: syz-executor.4 Not tainted 6.0.0-rc5-syzkaller-00089-g6879c2d3b960 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 ubsan_epilogue lib/ubsan.c:151 [inline] __ubsan_handle_out_of_bounds+0x107/0x150 lib/ubsan.c:283 register_lock_class+0x9a6/0x9b0 kernel/locking/lockdep.c:1298 __lock_acquire+0xe4/0x1f60 kernel/locking/lockdep.c:4932 lock_acquire+0x1a7/0x400 kernel/locking/lockdep.c:5666 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:349 [inline] iput_final fs/inode.c:1737 [inline] iput+0x3ee/0x760 fs/inode.c:1774 ntfs_fill_super+0x3c6c/0x4420 fs/ntfs3/super.c:1190 get_tree_bdev+0x400/0x620 fs/super.c:1323 vfs_get_tree+0x88/0x270 fs/super.c:1530 do_new_mount+0x289/0xad0 fs/namespace.c:3040 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x2e3/0x3d0 fs/namespace.c:3568 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fc89668a93a Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc8977aef88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007fc89668a93a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fc8977aefe0 RBP: 00007fc8977af020 R08: 00007fc8977af020 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000 R13: 0000000020000100 R14: 00007fc8977aefe0 R15: 0000000020003580 </TASK> ================================================================================ --- This report is generated by a bot. 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