Resource leak when using a normal site as DOH server
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原文摘录
摘自原文（2860 字符中的一小部分）
Summary: If a DOH server is used, which is not really a DOH server but just a normal web server, the DNS request is sent but the reply will not be the expected DNS payload. In that case, curl correctly thinks DNS resolution failed, but it does not clean up allocated memory properly.
原文中的代码
valgrind ./a.out notadoh (snip) ==3096== HEAP SUMMARY: ==3096== in use at exit: 98,252 bytes in 1,043 blocks ==3096== total heap usage: 101,296 allocs, 100,253 frees, 9,473,596 bytes allocated ==3096== ==3096== LEAK SUMMARY: ==3096== definitely lost: 8,564 bytes in 3 blocks ==3096== …
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阅读 HackerOne 原文 ↗作者 @pauldreik · 版权归作者与 curl 所有