{"id":641,"date":"2012-03-08T17:02:24","date_gmt":"2012-03-09T00:02:24","guid":{"rendered":"http:\/\/blog.mozilla.org\/security\/?p=641"},"modified":"2012-03-08T17:02:24","modified_gmt":"2012-03-09T00:02:24","slug":"update-on-address-sanitizer","status":"publish","type":"post","link":"https:\/\/blog.mozilla.org\/security\/2012\/03\/08\/update-on-address-sanitizer\/","title":{"rendered":"Update on Address Sanitizer"},"content":{"rendered":"<p>In a <a title=\"Trying new code analysis techniques\" href=\"http:\/\/blog.mozilla.org\/decoder\/2012\/01\/27\/trying-new-code-analysis-techniques\/\" target=\"_blank\">previous blog post<\/a>, I outlined how the memory error detection tool <em>Address Sanitizier (ASan)<\/em> can be used with Firefox to find memory problems with a high degree of performance and how it can even detect certain errors that conventional tools missed.<\/p>\n<p>While it was very complex to build Firefox with ASan support in the past, we now provide a much easier way (achieved by landing <a href=\"https:\/\/bugzilla.mozilla.org\/show_bug.cgi?id=727445\" target=\"_blank\">bug 727445<\/a>). One of the most important changes is that from now on, <strong>no patching of Clang\/LLVM<\/strong> is required anymore. Secondly, <strong>no further patches to Firefox<\/strong> are required for building, only a custom build configuration must be used. The <a href=\"https:\/\/developer.mozilla.org\/en\/Building_Firefox_with_Address_Sanitizer\" target=\"_blank\">build manual<\/a> has been updated accordingly to reflect these changes. We hope that this encourages more people to try this tool and help us to improve Firefox.<\/p>\n<p>&#8211; Christian Holler<br \/>\nSecurity Engineer<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In a previous blog post, I outlined how the memory error detection tool Address Sanitizier (ASan) can be used with Firefox to find memory problems with a high degree of &hellip; <a class=\"go\" href=\"https:\/\/blog.mozilla.org\/security\/2012\/03\/08\/update-on-address-sanitizer\/\">Read more<\/a><\/p>\n","protected":false},"author":409,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[30,69],"tags":[],"coauthors":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Update on Address Sanitizer - Mozilla Security Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.mozilla.org\/security\/2012\/03\/08\/update-on-address-sanitizer\/\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Christian Holler\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/blog.mozilla.org\/security\/2012\/03\/08\/update-on-address-sanitizer\/\",\"url\":\"https:\/\/blog.mozilla.org\/security\/2012\/03\/08\/update-on-address-sanitizer\/\",\"name\":\"Update on Address Sanitizer - 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