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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: 5058 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 : ffff8000210070e0
x29: ffff8000210070e0 x28: 0000000000000000 x27: 0000000000000000
x26: ffff0000dc9540fe x25: 0000000000000000 x24: dfff800000000000
x23: 0000000000000020 x22: ffff0000dc9540fe x21: 0000000000000008
x20: 0000000000000001 x19: ffff0000dc9540f8 x18: 0000000000000015
x17: 000000001715609d x16: ffff800008042c8c x15: 0000000000000000
x14: 0000000000000070 x13: 0000000000ff0100 x12: 0000000000ff0100
x11: ff00800008ce4880 x10: 0000000000000000 x9 : ffff800008ce4880
x8 : ffff0000ced60000 x7 : 0000000000000000 x6 : 000000000000003f
x5 : 0000000000000040 x4 : ffffffffffffffd0 x3 : 00000000ffffffd8
x2 : 0000000000000110 x1 : 0000000000000020 x0 : 0000000000000028
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_unlink+0x400/0x5e8 fs/reiserfs/namei.c:1069
 vfs_unlink+0x2e0/0x4f4 fs/namei.c:4322
 do_unlinkat+0x31c/0x4e8 fs/namei.c:4390
 __do_sys_unlinkat fs/namei.c:4433 [inline]
 __se_sys_unlinkat fs/namei.c:4426 [inline]
 __arm64_sys_unlinkat+0xe0/0xfc fs/namei.c:4426
 __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 97efc951 17ffff92 97def407 (d4210000) 
---[ end trace 0000000000000000 ]---