fuzz - 12156 - Explicit cast to unsigned 32bit int because a signed int could not hold 0xffff << 16 bits.

libclamav/cpio.c

@@ -145,7 +145,7 @@ int cli_scancpio_old(cli_ctx *ctx)
             } else if (hdr_namesize % 2)
                 pos++;
         }
-        filesize = (uint32_t)(EC16(hdr_old.filesize[0], conv) << 16 | EC16(hdr_old.filesize[1], conv));
+        filesize = (uint32_t)((uint32_t)EC16(hdr_old.filesize[0], conv) << 16 | EC16(hdr_old.filesize[1], conv));
         cli_dbgmsg("CPIO: Filesize: %u\n", filesize);
         if (!filesize)
             continue;