OSV-2022-828 UNKNOWN READ in stream_finalize

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=50898 Crash type: UNKNOWN READ Crash state: streamfinalize ifreeobject coswritestreamalloc...

OSV-2022-727 Heap-buffer-overflow in s_file_write_flush

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=50370 Crash type: Heap-buffer-overflow READ 8 Crash state: sfilewriteflush sclose streamfinalize...