OSV-2026-923 Heap-use-after-free in gf_node_unregister

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=523799837 Crash type: Heap-use-after-free READ 8 Crash state: gfnodeunregister BMParseCommand gfbifsflushcommandlist...