{"id":7517,"date":"2022-09-09T03:50:21","date_gmt":"2022-09-08T22:20:21","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-i-do-not-know-glibc-detected-in-c\/"},"modified":"2022-09-09T03:50:21","modified_gmt":"2022-09-08T22:20:21","slug":"solved-i-do-not-know-glibc-detected-in-c","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-i-do-not-know-glibc-detected-in-c\/","title":{"rendered":"[Solved] I do not know &#8216;glibc detected&#8217; in C"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-10865023\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"10865023\" data-parentid=\"10864931\" data-score=\"8\" data-position-on-page=\"1\" data-highest-scored=\"1\" data-question-has-accepted-highest-score=\"1\" itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<p>It means you have heap corruption in your program.  You likely allocate some memory using <code>malloc<\/code>, but write outside the actual bounds, corrupting the heap.  When you call <code>free<\/code>, glibc detects the corruption and reports it (specifically, the size of the next free chunk is overwritten).<\/p>\n<p>You should definitely fix this problem.  <a rel=\"nofollow noopener\" target=\"_blank\" href=\"http:\/\/valgrind.org\">Valgrind<\/a> can be a huge help in tracking down the code that actually causes the heap corruption.<\/p>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\"><\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved I do not know &#8216;glibc detected&#8217; in C <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] It means you have heap corruption in your program. You likely allocate some memory using malloc, but write outside the actual bounds, corrupting the heap. When you call free, glibc detects the corruption and reports it (specifically, the size of the next free chunk is overwritten). You should definitely fix this problem. Valgrind can &#8230; <a title=\"[Solved] I do not know &#8216;glibc detected&#8217; in C\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-i-do-not-know-glibc-detected-in-c\/\" aria-label=\"More on [Solved] I do not know &#8216;glibc detected&#8217; in C\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[324,2086,443],"class_list":["post-7517","post","type-post","status-publish","format-standard","hentry","category-solved","tag-c","tag-glibc","tag-unix"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] I do not know &#039;glibc detected&#039; in C - JassWeb<\/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:\/\/jassweb.com\/solved\/solved-i-do-not-know-glibc-detected-in-c\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] I do not know &#039;glibc detected&#039; in C - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] It means you have heap corruption in your program. You likely allocate some memory using malloc, but write outside the actual bounds, corrupting the heap. When you call free, glibc detects the corruption and reports it (specifically, the size of the next free chunk is overwritten). You should definitely fix this problem. Valgrind can ... 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