------------[ cut here ]------------
kernel BUG at fs/reiserfs/item_ops.c:569!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 4274 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:direntry_check_right+0x262/0x270 fs/reiserfs/item_ops.c:569
Code: e9 4b ff ff ff 44 89 f9 80 e1 07 38 c1 0f 8c 51 ff ff ff be 04 00 00 00 4c 89 ff e8 88 48 b7 ff e9 3f ff ff ff e8 1e 19 67 ff <0f> 0b e8 17 19 67 ff 0f 0b 0f 1f 44 00 00 55 41 57 41 56 41 55 41
RSP: 0018:ffffc900040a7298 EFLAGS: 00010293
RAX: ffffffff8219b9f2 RBX: dffffc0000000000 RCX: ffff88807acf1dc0
RDX: 0000000000000000 RSI: 0000000000000020 RDI: 000000000000004c
RBP: ffff888077c701a0 R08: ffff88807acf1dc0 R09: 0000000000000002
R10: 0000000000000070 R11: 0000000000000000 R12: ffff888077c7019e
R13: 0000000000000020 R14: ffffffffffffffff R15: 000000000000002c
FS:  0000555566523500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0ff521d000 CR3: 000000005b4a7000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 00000000fee0000e DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 check_right+0x4ea/0x7f0 fs/reiserfs/fix_node.c:355
 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+0x3dc4/0x82d0 fs/reiserfs/fix_node.c:2635
 reiserfs_delete_solid_item+0x567/0xec0 fs/reiserfs/stree.c:1455
 reiserfs_delete_object+0x153/0x1a0 fs/reiserfs/stree.c:1517
 reiserfs_evict_inode+0x2de/0x490 fs/reiserfs/inode.c:63
 evict+0x485/0x870 fs/inode.c:705
 d_delete_notify include/linux/fsnotify.h:267 [inline]
 vfs_rmdir+0x397/0x4d0 fs/namei.c:4212
 do_rmdir+0x288/0x5e0 fs/namei.c:4260
 __do_sys_unlinkat fs/namei.c:4440 [inline]
 __se_sys_unlinkat fs/namei.c:4434 [inline]
 __x64_sys_unlinkat+0xc0/0xe0 fs/namei.c:4434
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f275d58e5a7
Code: 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 07 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe19a673e8 EFLAGS: 00000207 ORIG_RAX: 0000000000000107
RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 00007f275d58e5a7
RDX: 0000000000000200 RSI: 00007ffe19a68590 RDI: 00000000ffffff9c
RBP: 00007f275d611d7d R08: 000055556654666b R09: 0000000000000000
R10: 0000000000001000 R11: 0000000000000207 R12: 00007ffe19a68590
R13: 00007f275d611d7d R14: 0000000000051f78 R15: 00007ffe19a6a750
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:direntry_check_right+0x262/0x270 fs/reiserfs/item_ops.c:569
Code: e9 4b ff ff ff 44 89 f9 80 e1 07 38 c1 0f 8c 51 ff ff ff be 04 00 00 00 4c 89 ff e8 88 48 b7 ff e9 3f ff ff ff e8 1e 19 67 ff <0f> 0b e8 17 19 67 ff 0f 0b 0f 1f 44 00 00 55 41 57 41 56 41 55 41
RSP: 0018:ffffc900040a7298 EFLAGS: 00010293
RAX: ffffffff8219b9f2 RBX: dffffc0000000000 RCX: ffff88807acf1dc0
RDX: 0000000000000000 RSI: 0000000000000020 RDI: 000000000000004c
RBP: ffff888077c701a0 R08: ffff88807acf1dc0 R09: 0000000000000002
R10: 0000000000000070 R11: 0000000000000000 R12: ffff888077c7019e
R13: 0000000000000020 R14: ffffffffffffffff R15: 000000000000002c
FS:  0000555566523500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000003000 CR3: 000000005b4a7000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400