REISERFS panic (device loop4): vs-12195 balance_leaf: CFR not initialized
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kernel BUG at fs/reiserfs/prints.c:390!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4787 Comm: syz.4.118 Not tainted 5.15.184-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __reiserfs_panic+0x13c/0x140 fs/reiserfs/prints.c:384
lr : __reiserfs_panic+0x13c/0x140 fs/reiserfs/prints.c:384
sp : ffff800020af6980
x29: ffff800020af6a20 x28: ffff800020af7200 x27: ffff800020af7218
x26: 0000000000000002 x25: dfff800000000000 x24: ffff800020af73a0
x23: ffff800020af69a0 x22: ffff8000113e1ea0 x21: ffff0000f0724000
x20: ffff8000113e1e80 x19: ffff800013870e79 x18: 0000000000000002
x17: ffff800016cdf000 x16: ffff8000111a5644 x15: ffff8000167bf4c0
x14: ffff0000cbb70a00 x13: 1ffff0000282a06b x12: 0000000000080000
x11: 000000000000b6f0 x10: ffff800028290000 x9 : aae4994a4af16900
x8 : aae4994a4af16900 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff80000a732644
x2 : ffff0001a10fbd10 x1 : 0000000100000000 x0 : 0000000000000049
Call trace:
 __reiserfs_panic+0x13c/0x140 fs/reiserfs/prints.c:384
 balance_leaf+0xa0a8/0xd2f4 fs/reiserfs/do_balan.c:1439
 do_balance+0x260/0x778 fs/reiserfs/do_balan.c:1888
 reiserfs_insert_item+0x8a8/0x9f4 fs/reiserfs/stree.c:2261
 add_save_link+0x2d4/0x4c4 fs/reiserfs/super.c:495
 reiserfs_truncate_file+0x308/0x6e4 fs/reiserfs/inode.c:2317
 reiserfs_setattr+0x8c8/0xd70 fs/reiserfs/inode.c:3409
 notify_change+0xa08/0xcd8 fs/attr.c:505
 do_truncate+0x178/0x1f0 fs/open.c:65
 vfs_truncate+0x23c/0x2b0 fs/open.c:111
 do_sys_truncate+0xe8/0x1b0 fs/open.c:134
 __do_sys_truncate fs/open.c:146 [inline]
 __se_sys_truncate fs/open.c:144 [inline]
 __arm64_sys_truncate+0x5c/0x70 fs/open.c:144
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Code: 912800a5 911aa2a1 aa1303e4 97ffd888 (d4210000) 
---[ end trace 9e48b01e4ff7db5d ]---