REISERFS panic (device loop4): 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: 8681 Comm: syz-executor.4 Not tainted 6.1.25-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 pstate: 60400005 (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 : ffff8000253a63a0 x29: ffff8000253a6460 x28: ffff8000253a6cf8 x27: 0000000000000069 x26: dfff800000000000 x25: 0000000000000002 x24: ffff8000253a6420 x23: ffff8000253a63e0 x22: ffff80001232bd00 x21: ffff0000d7544000 x20: ffff80001232bce0 x19: ffff800014cc2827 x18: 1fffe000368b6b76 x17: ffff80001557d000 x16: ffff8000120dc5fc x15: ffff0001b45b5bbc x14: 1ffff00002ab00b0 x13: dfff800000000000 x12: 0000000000000001 x11: ff808000083439b0 x10: 0000000000000000 x9 : 2b02c2e49b33c700 x8 : 2b02c2e49b33c700 x7 : ffff800008279fb8 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff80000aa6b40c x2 : ffff0001b45b5cd0 x1 : 0000000100000000 x0 : 0000000000000049 Call trace: __reiserfs_panic+0x150/0x154 fs/reiserfs/prints.c:384 balance_leaf+0xd1cc/0xe860 fs/reiserfs/do_balan.c:1439 do_balance+0x27c/0x788 fs/reiserfs/do_balan.c:1888 reiserfs_insert_item+0x940/0xa84 fs/reiserfs/stree.c:2261 add_save_link+0x390/0x678 fs/reiserfs/super.c:495 reiserfs_truncate_file+0x4f4/0xb1c fs/reiserfs/inode.c:2309 reiserfs_setattr+0xb58/0x101c fs/reiserfs/inode.c:3395 notify_change+0xc24/0xec0 fs/attr.c:482 do_truncate+0x1c0/0x28c fs/open.c:65 handle_truncate fs/namei.c:3216 [inline] do_open fs/namei.c:3561 [inline] path_openat+0x1fa0/0x2548 fs/namei.c:3714 do_filp_open+0x1bc/0x3cc fs/namei.c:3741 do_sys_openat2+0x128/0x3d8 fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_openat fs/open.c:1342 [inline] __se_sys_openat fs/open.c:1337 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1337 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 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:581 Code: d0084dc5 911d00a5 aa1303e4 95c6b953 (d4210000) ---[ end trace 0000000000000000 ]---