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72 lines
3.3 KiB
HTML
72 lines
3.3 KiB
HTML
4 years ago
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<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>Stack Smashing Protection (The Red Hat newlib C Library)</title>
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<meta name="description" content="Stack Smashing Protection (The Red Hat newlib C Library)">
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<meta name="keywords" content="Stack Smashing Protection (The Red Hat newlib C Library)">
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<meta name="resource-type" content="document">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="Document-Index.html#Document-Index" rel="index" title="Document Index">
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<link href="Document-Index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Overflow-Protection.html#Overflow-Protection" rel="up" title="Overflow Protection">
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<link href="Object-Size-Checking.html#Object-Size-Checking" rel="next" title="Object Size Checking">
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<link href="Overflow-Protection.html#Overflow-Protection" rel="prev" title="Overflow Protection">
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</head>
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<body lang="en">
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<a name="Stack-Smashing-Protection"></a>
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<div class="header">
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<p>
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Next: <a href="Object-Size-Checking.html#Object-Size-Checking" accesskey="n" rel="next">Object Size Checking</a>, Up: <a href="Overflow-Protection.html#Overflow-Protection" accesskey="u" rel="up">Overflow Protection</a> [<a href="Document-Index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Document-Index.html#Document-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<a name="Stack-Smashing-Protection-1"></a>
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<h3 class="section">12.1 Stack Smashing Protection</h3>
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<p>Stack Smashing Protection is a compiler feature which emits extra code
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to check for stack smashing attacks. It depends on a canary, which is
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initialized with the process, and functions for process termination when
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an overflow is detected. These are private entry points intended solely
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for use by the compiler, and are used when any of the <code>-fstack-protector</code>,
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<code>-fstack-protector-all</code>, <code>-fstack-protector-explicit</code>, or
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<code>-fstack-protector-strong</code> compiler flags are enabled.
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</p>
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</body>
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