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kernel BUG at fs/reiserfs/item_ops.c:569!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4325 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : direntry_check_right+0x230/0x23c fs/reiserfs/item_ops.c:561
lr : direntry_check_right+0x230/0x23c fs/reiserfs/item_ops.c:561
sp : ffff800020777140
x29: ffff800020777140 x28: 0000000000000000 x27: fffffffffffffffd
x26: ffff0000f2f9c104 x25: fffffffffffffffd x24: dfff800000000000
x23: 0000000000000018 x22: ffff0000f2f9c0fe x21: 000000000000002c
x20: 0000000000000004 x19: ffff0000f2f9c0f8 x18: 0000000000000000
x17: 0000000000000000 x16: ffff800008042d90 x15: 0000000000000000
x14: 0000000000000070 x13: 0000000000ff0100 x12: 0000000000ff0100
x11: ff00800008ce4e9c x10: 0000000000000000 x9 : ffff800008ce4e9c
x8 : ffff0000d35d5340 x7 : 0000000000000000 x6 : 000000000000003f
x5 : 0000000000000040 x4 : ffffffffffffffd0 x3 : 00000000ffffffe8
x2 : 0000000000000194 x1 : 0000000000000018 x0 : 0000000000000044
Call trace:
 direntry_check_right+0x230/0x23c fs/reiserfs/item_ops.c:561
 check_right+0x428/0x690 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+0x28cc/0x6b4c fs/reiserfs/fix_node.c:2635
 reiserfs_cut_from_item+0x23c/0x1a58 fs/reiserfs/stree.c:1742
 reiserfs_rmdir+0x3cc/0x604 fs/reiserfs/namei.c:959
 vfs_rmdir+0x304/0x438 fs/namei.c:4199
 do_rmdir+0x238/0x50c fs/namei.c:4260
 __do_sys_unlinkat fs/namei.c:4440 [inline]
 __se_sys_unlinkat fs/namei.c:4434 [inline]
 __arm64_sys_unlinkat+0xcc/0xfc fs/namei.c:4434
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Code: 52800041 97efc9cc 17ffff92 97def336 (d4210000) 
---[ end trace 0000000000000000 ]---