REISERFS panic (device loop0): vs-12195 balance_leaf: CFR not initialized
------------[ cut here ]------------
kernel BUG at fs/reiserfs/prints.c:390!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4973 Comm: syz.0.16 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : __reiserfs_panic+0x150/0x154 fs/reiserfs/prints.c:384
lr : __reiserfs_panic+0x150/0x154 fs/reiserfs/prints.c:384
sp : ffff80001fe962c0
x29: ffff80001fe96360 x28: ffff80001fe96b60 x27: ffff80001fe96b78
x26: 0000000000000070 x25: ffff700003fd2c98 x24: ffff700003fd2c5c
x23: ffff80001fe962e0 x22: ffff8000114a2d40 x21: ffff0000d9a48000
x20: ffff8000114a2d20 x19: ffff8000139489a8 x18: 0000000000000001
x17: 0000000000000000 x16: ffff80001125a830 x15: 00000000ffffffff
x14: 0000000000000001 x13: 1fffe000341f1cd7 x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : 2f93b7a108e1f500
x8 : 2f93b7a108e1f500 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001fe95bd8 x4 : ffff80001437f3e0 x3 : ffff80000a75e82c
x2 : ffff0001a0f82d50 x1 : 0000000100000000 x0 : 0000000000000049
Call trace:
 __reiserfs_panic+0x150/0x154 fs/reiserfs/prints.c:384
 balance_leaf+0xa658/0xd92c fs/reiserfs/do_balan.c:1439
 do_balance+0x270/0x790 fs/reiserfs/do_balan.c:1888
 reiserfs_paste_into_item+0x5d0/0x6e0 fs/reiserfs/stree.c:2159
 reiserfs_get_block+0x14bc/0x3654 fs/reiserfs/inode.c:1077
 __block_write_begin_int+0x3d8/0x1530 fs/buffer.c:2012
 __block_write_begin+0x40/0x54 fs/buffer.c:2062
 reiserfs_write_begin+0x3c8/0x654 fs/reiserfs/inode.c:2790
 generic_perform_write+0x208/0x488 mm/filemap.c:3785
 __generic_file_write_iter+0x23c/0x454 mm/filemap.c:3912
 generic_file_write_iter+0xb0/0x1b4 mm/filemap.c:3944
 do_iter_readv_writev+0x3a8/0x50c fs/read_write.c:-1
 do_iter_write+0x1c4/0x670 fs/read_write.c:855
 vfs_writev fs/read_write.c:928 [inline]
 do_pwritev+0x1e8/0x338 fs/read_write.c:1025
 __do_sys_pwritev2 fs/read_write.c:1084 [inline]
 __se_sys_pwritev2 fs/read_write.c:1075 [inline]
 __arm64_sys_pwritev2+0xd4/0x108 fs/read_write.c:1075
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1d0 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: 912200a5 911aa2a1 aa1303e4 97ffd7e8 (d4210000) 
---[ end trace 0fec99b6ce41e1b0 ]---