------------[ cut here ]------------
kernel BUG at fs/reiserfs/item_ops.c:569!
invalid opcode: 0000 [#1] PREEMPT SMP
CPU: 1 PID: 2616 Comm: syz-executor.0 Not tainted 6.3.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
RIP: 0010:direntry_check_right+0x51/0x60 fs/reiserfs/item_ops.c:569
Code: ff 72 ee eb 25 31 d2 44 39 c2 74 1e 41 83 c0 fe 44 39 c2 44 0f 4c c2 f6 00 01 44 0f 44 c2 31 c0 41 83 f8 01 19 c0 44 09 c0 c3 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 48 8b 4f
RSP: 0018:ffffc900025bb7b8 EFLAGS: 00010286
RAX: ffff888106352120 RBX: 0000000000000018 RCX: 0000000000000020
RDX: 0000000000000003 RSI: 0000000000000021 RDI: 00000000ffffffff
RBP: ffffc900025bb8f0 R08: 0000000000000003 R09: 000000000000001e
R10: ffff888112b29090 R11: ffff888112b29f15 R12: ffffc900025bb970
R13: ffffc900025bb978 R14: 0000000000000079 R15: 0000000000000000
FS:  00005555569a0480(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7ac2f0662e CR3: 00000001117ff000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 check_right fs/reiserfs/fix_node.c:355 [inline]
 dc_check_balance_leaf fs/reiserfs/fix_node.c:1983 [inline]
 dc_check_balance fs/reiserfs/fix_node.c:2039 [inline]
 check_balance fs/reiserfs/fix_node.c:2086 [inline]
 fix_nodes+0x1708/0x2c40 fs/reiserfs/fix_node.c:2635
 reiserfs_cut_from_item+0x10c/0x890 fs/reiserfs/stree.c:1742
 reiserfs_do_truncate+0x35f/0x550 fs/reiserfs/stree.c:1973
 reiserfs_truncate_file+0x1a7/0x430 fs/reiserfs/inode.c:2310
 reiserfs_file_release+0x1e6/0x320 fs/reiserfs/file.c:109
 __fput+0xe1/0x210 fs/file_table.c:321
 task_work_run+0x7d/0xa0 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0xa4/0xb0 kernel/entry/common.c:171
 exit_to_user_mode_prepare+0x64/0xd0 kernel/entry/common.c:203
 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
 syscall_exit_to_user_mode+0x2c/0x220 kernel/entry/common.c:296
 do_syscall_64+0x4d/0x90 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f7ac2e7b9da
Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 03 7f 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 63 7f 02 00 8b 44 24
RSP: 002b:00007ffd4a126080 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000006 RCX: 00007f7ac2e7b9da
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 0000000000000032 R08: 0000001b2d760000 R09: 00007f7ac2f9bf8c
R10: 00007ffd4a1261d0 R11: 0000000000000293 R12: 00007f7ac2a01438
R13: ffffffffffffffff R14: 00007f7ac2a00000 R15: 000000000000a3bf
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:direntry_check_right+0x51/0x60 fs/reiserfs/item_ops.c:569
Code: ff 72 ee eb 25 31 d2 44 39 c2 74 1e 41 83 c0 fe 44 39 c2 44 0f 4c c2 f6 00 01 44 0f 44 c2 31 c0 41 83 f8 01 19 c0 44 09 c0 c3 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 48 8b 4f
RSP: 0018:ffffc900025bb7b8 EFLAGS: 00010286
RAX: ffff888106352120 RBX: 0000000000000018 RCX: 0000000000000020
RDX: 0000000000000003 RSI: 0000000000000021 RDI: 00000000ffffffff
RBP: ffffc900025bb8f0 R08: 0000000000000003 R09: 000000000000001e
R10: ffff888112b29090 R11: ffff888112b29f15 R12: ffffc900025bb970
R13: ffffc900025bb978 R14: 0000000000000079 R15: 0000000000000000
FS:  00005555569a0480(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6d6cf95ed8 CR3: 00000001117ff000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400