------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(lock->magic != lock) WARNING: CPU: 0 PID: 8685 at kernel/locking/mutex.c:582 __mutex_lock_common kernel/locking/mutex.c:582 [inline] WARNING: CPU: 0 PID: 8685 at kernel/locking/mutex.c:582 __mutex_lock+0xc36/0xd60 kernel/locking/mutex.c:747 Modules linked in: CPU: 0 PID: 8685 Comm: syz-executor.0 Not tainted 6.7.0-rc1-syzkaller-00012-g9bacdd8996c7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:582 [inline] RIP: 0010:__mutex_lock+0xc36/0xd60 kernel/locking/mutex.c:747 Code: 0f b6 04 20 84 c0 0f 85 18 01 00 00 83 3d 61 d6 e0 03 00 75 19 90 48 c7 c7 40 9a 6a 8b 48 c7 c6 e0 9a 6a 8b e8 cb 39 34 f6 90 <0f> 0b 90 90 90 e9 c8 f4 ff ff 90 0f 0b 90 e9 d6 f8 ff ff 90 0f 0b RSP: 0018:ffffc90003467820 EFLAGS: 00010246 RAX: efd396aec649cd00 RBX: 0000000000000000 RCX: ffff88801c1d0000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90003467980 R08: ffffffff81545a92 R09: 1ffff11017305172 R10: dffffc0000000000 R11: ffffed1017305173 R12: dffffc0000000000 R13: ffff88807a935428 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007f8bcacba6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555555661938 CR3: 00000000270d0000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27 reiserfs_readdir_inode+0x181/0x14c0 fs/reiserfs/dir.c:79 iterate_dir+0x1cd/0x540 fs/readdir.c:106 __do_sys_getdents fs/readdir.c:322 [inline] __se_sys_getdents+0x1ef/0x4c0 fs/readdir.c:307 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x45/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f8bc9e7cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f8bcacba0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000004e RAX: ffffffffffffffda RBX: 00007f8bc9f9bf80 RCX: 00007f8bc9e7cae9 RDX: 0000000000000018 RSI: 0000000020000640 RDI: 0000000000000004 RBP: 00007f8bc9ec847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f8bc9f9bf80 R15: 00007ffec9240398