loop2: detected capacity change from 0 to 64 ------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(lock->magic != lock) WARNING: CPU: 1 PID: 29220 at kernel/locking/mutex.c:582 __mutex_lock_common+0x1a3e/0x2530 kernel/locking/mutex.c:582 Modules linked in: CPU: 1 PID: 29220 Comm: syz-executor.2 Not tainted 6.3.0-rc3-syzkaller-00394-g0ec57cfa721f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 RIP: 0010:__mutex_lock_common+0x1a3e/0x2530 kernel/locking/mutex.c:582 Code: 04 28 84 c0 0f 85 82 08 00 00 83 3d 53 23 aa 03 00 0f 85 00 e7 ff ff 48 c7 c7 a0 68 ea 8a 48 c7 c6 40 69 ea 8a e8 02 d1 a8 f6 <0f> 0b e9 e6 e6 ff ff e8 86 fb 56 f6 e9 59 fb ff ff 0f 0b e9 bd f0 RSP: 0018:ffffc9000e997800 EFLAGS: 00010246 RAX: a88ee04cee245a00 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc90005bba000 RSI: 0000000000002285 RDI: 0000000000002286 RBP: ffffc9000e997970 R08: ffffffff81526c82 R09: ffffed101732515b R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f622e897700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa2d2cc8000 CR3: 0000000027c7d000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799 reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27 reiserfs_readdir_inode+0x181/0x14c0 fs/reiserfs/dir.c:79 iterate_dir+0x228/0x570 __do_sys_getdents64 fs/readdir.c:369 [inline] __se_sys_getdents64+0x20d/0x4f0 fs/readdir.c:354 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f622da8c0f9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f622e897168 EFLAGS: 00000246 ORIG_RAX: 00000000000000d9 RAX: ffffffffffffffda RBX: 00007f622dbabf80 RCX: 00007f622da8c0f9 RDX: 0000000000000fe8 RSI: 0000000020000680 RDI: 0000000000000004 RBP: 00007f622dae7b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd43fcde6f R14: 00007f622e897300 R15: 0000000000022000