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: 5256 Comm: syz.0.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 pstate: 62400005 (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 : ffff800020f56520 x29: ffff800020f565c0 x28: ffff800020f56dc0 x27: ffff800020f56dd8 x26: ffff0000e811d027 x25: dfff800000000000 x24: ffff800020f56f60 x23: ffff800020f56540 x22: ffff800011b5eba0 x21: ffff0000d9180000 x20: ffff800011b5eb80 x19: ffff800014770cbe x18: ffff800011a5bd40 x17: 6e6920746f6e2052 x16: ffff8000082d3a08 x15: 0000000000000000 x14: 00000000ffffffff x13: 0000000000000001 x12: 0000000000ff0100 x11: ff0080000830b6e8 x10: 0000000000000000 x9 : 2820ab4db353ca00 x8 : 2820ab4db353ca00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800020f55ff8 x4 : ffff800015134e00 x3 : ffff80000a84818c x2 : ffff00019f73dd10 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+0x260/0x774 fs/reiserfs/do_balan.c:1888 reiserfs_paste_into_item+0x5b4/0x6d0 fs/reiserfs/stree.c:2159 reiserfs_get_block+0x1444/0x3524 fs/reiserfs/inode.c:1069 __block_write_begin_int+0x34c/0x13b8 fs/buffer.c:1991 __block_write_begin+0x7c/0xa0 fs/buffer.c:2041 reiserfs_write_begin+0x328/0x71c fs/reiserfs/inode.c:2775 generic_perform_write+0x230/0x4e4 mm/filemap.c:3862 __generic_file_write_iter+0x130/0x250 mm/filemap.c:3960 generic_file_write_iter+0xb4/0x2b0 mm/filemap.c:3989 call_write_iter include/linux/fs.h:2265 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x5ac/0x7c4 fs/read_write.c:584 ksys_pwrite64 fs/read_write.c:699 [inline] __do_sys_pwrite64 fs/read_write.c:709 [inline] __se_sys_pwrite64 fs/read_write.c:706 [inline] __arm64_sys_pwrite64+0x170/0x200 fs/read_write.c:706 __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: 912d80a5 911aa2a1 aa1303e4 97ffe397 (d4210000) ---[ end trace 0000000000000000 ]---