REISERFS panic (device loop4): vs-12195 balance_leaf: CFR not initialized
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kernel BUG at fs/reiserfs/prints.c:390!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 29297 Comm: syz-executor.4 Not tainted 6.2.0-next-20230302-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023
RIP: 0010:__reiserfs_panic+0xf7/0x150 fs/reiserfs/prints.c:390
Code: 64 ff 4d 89 e8 4c 89 f1 4c 89 e2 48 8d b3 a8 06 00 00 49 c7 c1 20 1f ed 91 48 c7 c7 80 cb 61 8a e8 ae af 48 ff e8 19 ed 64 ff <0f> 0b 49 c7 c6 e0 c9 61 8a 4d 89 f4 eb c5 e8 06 ed 64 ff 4d 85 e4
RSP: 0018:ffffc9000c006e00 EFLAGS: 00010216
RAX: 0000000000003d96 RBX: ffff888022e40000 RCX: ffffc9000dbb5000
RDX: 0000000000040000 RSI: ffffffff821fcaf7 RDI: 0000000000000005
RBP: ffffc9000c006ed0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000000 R12: ffffffff8a614160
R13: ffffffff8a614b40 R14: ffffffff8a61ca20 R15: 0000000000000000
FS:  00007fe7d145c700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe7d143b718 CR3: 0000000018a9c000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 balance_leaf+0xd35f/0xddc0 fs/reiserfs/do_balan.c:1439
 do_balance+0x319/0x810 fs/reiserfs/do_balan.c:1888
 reiserfs_insert_item+0xd84/0x11a0 fs/reiserfs/stree.c:2261
 add_save_link+0x38d/0x620 fs/reiserfs/super.c:495
 reiserfs_truncate_file+0xad4/0x1070 fs/reiserfs/inode.c:2309
 reiserfs_setattr+0xddf/0x1370 fs/reiserfs/inode.c:3395
 notify_change+0xb2c/0x1180 fs/attr.c:482
 do_truncate+0x143/0x200 fs/open.c:66
 handle_truncate fs/namei.c:3219 [inline]
 do_open fs/namei.c:3564 [inline]
 path_openat+0x2083/0x2750 fs/namei.c:3715
 do_filp_open+0x1ba/0x410 fs/namei.c:3742
 do_sys_openat2+0x16d/0x4c0 fs/open.c:1348
 do_sys_open fs/open.c:1364 [inline]
 __do_sys_creat fs/open.c:1440 [inline]
 __se_sys_creat fs/open.c:1434 [inline]
 __x64_sys_creat+0xcd/0x120 fs/open.c:1434
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fe7d068c0f9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe7d145c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007fe7d07abf80 RCX: 00007fe7d068c0f9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000040
RBP: 00007fe7d06e7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe11edb41f R14: 00007fe7d145c300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__reiserfs_panic+0xf7/0x150 fs/reiserfs/prints.c:390
Code: 64 ff 4d 89 e8 4c 89 f1 4c 89 e2 48 8d b3 a8 06 00 00 49 c7 c1 20 1f ed 91 48 c7 c7 80 cb 61 8a e8 ae af 48 ff e8 19 ed 64 ff <0f> 0b 49 c7 c6 e0 c9 61 8a 4d 89 f4 eb c5 e8 06 ed 64 ff 4d 85 e4
RSP: 0018:ffffc9000c006e00 EFLAGS: 00010216
RAX: 0000000000003d96 RBX: ffff888022e40000 RCX: ffffc9000dbb5000
RDX: 0000000000040000 RSI: ffffffff821fcaf7 RDI: 0000000000000005
RBP: ffffc9000c006ed0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000000 R12: ffffffff8a614160
R13: ffffffff8a614b40 R14: ffffffff8a61ca20 R15: 0000000000000000
FS:  00007fe7d145c700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055d2eb2df1a0 CR3: 0000000018a9c000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400