{"id":279573,"date":"2026-06-23T10:46:00","date_gmt":"2026-06-23T14:46:00","guid":{"rendered":"https:\/\/news-you-need.com\/index.php\/2026\/06\/23\/linux-7-2-removes-string-copying-function-strncpy-after-six-year-cleanup\/"},"modified":"2026-06-23T11:00:11","modified_gmt":"2026-06-23T15:00:11","slug":"linux-7-2-removes-string-copying-function-strncpy-after-six-year-cleanup","status":"publish","type":"post","link":"https:\/\/news-you-need.com\/index.php\/2026\/06\/23\/linux-7-2-removes-string-copying-function-strncpy-after-six-year-cleanup\/","title":{"rendered":"Linux 7.2 Removes String-Copying Function Strncpy After Six-Year Cleanup"},"content":{"rendered":"<p><a href=\"https:\/\/winbuzzer.com\/2026\/06\/23\/linux-72-removes-kernel-side-strncpy-after-six-year-cleanup-xcxwbn\/\">Linux 7.2 Removes String-Copying Function Strncpy After Six-Year Cleanup<\/a><\/p>\n<p><a href=\"https:\/\/winbuzzer.com\/2026\/06\/23\/linux-72-removes-kernel-side-strncpy-after-six-year-cleanup-xcxwbn\/\">https:\/\/winbuzzer.com\/2026\/06\/23\/linux-72-removes-kernel-side-strncpy-after-six-year-cleanup-xcxwbn\/<\/a><\/p>\n<p>Publish Date: <a href=\"publish_date]\">2026-06-23 10:46:00<\/a><\/p>\n<p>Source Domain: <a href=\"winbuzzer.com\">winbuzzer.com<\/a><\/p>\n<p>TL;DR<\/p>\n<ul class=\"tldr-list\">\n<li><span class=\"tldr-label\">Kernel-Side Removal:<\/span> <span class=\"tldr-text\">Linux 7.2\u2019s June 20 kernel merge has removed strncpy from kernel code.<\/span><\/li>\n<li><span class=\"tldr-label\">Cleanup Scale:<\/span> <span class=\"tldr-text\">The cleanup took about six years and more than 360 patches because calls blurred termination, padding, and raw-copy intent.<\/span><\/li>\n<li><span class=\"tldr-label\">Developer Impact:<\/span> <span class=\"tldr-text\">Developers now choose strscpy, strscpy_pad, strtomem_pad, memcpy_and_pad, or memcpy based on destination behavior.<\/span><\/li>\n<li><span class=\"tldr-label\">Migration Risk:<\/span> <span class=\"tldr-text\">Out-of-tree drivers and embedded platforms may need checks when existing string-copy assumptions surface.<\/span><\/li>\n<\/ul>\n<p>Linux kernel maintainers released a June 20 Linux 7.2 merge that removes the legacy C string-copy function strncpy from kernel code. Kernel-side is the key scope: strncpy remains part of user-space C libraries and general C programming, but the Linux kernel no longer treats it as an in-tree application programming interface, or API, for string copying.<\/p>\n<p>More than 360 patches across roughly six years turned a small-looking API deletion into a maintenance milestone. The merge removed the strncpy API from the kernel and moved former callers to safer alternatives. Old strncpy calls blurred whether code wanted a terminated string, a padded fixed-width field, or a raw memory copy, so the removal gives a clearer signal about what each call site is supposed to do.<\/p>\n<h2><strong>What Changed Inside the Kernel<\/strong><\/h2>\n<p>strncpy copies a fixed number of bytes. In kernel code, the awkward part was not the copy alone but the rules around the end of a string. A C string normally ends with a NUL terminator, the zero byte that marks where the string stops; when a source string was equal to or longer than the chosen size, strncpy could omit a NUL terminator, allowing later reads past the intended buffer.<\/p>\n<p>Because strncpy also padded destinations with zero bytes even when padding was not the goal, kernel documentation tied that combination to ambiguous intent. A strncpy call might be building a string, filling a fixed-width character array, or copying known-length memory. Linus Torvalds called the old interface&#8230;<\/p>\n<p><a href=\"https:\/\/winbuzzer.com\/2026\/06\/23\/linux-72-removes-kernel-side-strncpy-after-six-year-cleanup-xcxwbn\/\">Source<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Linux 7.2 Removes String-Copying Function Strncpy After Six-Year Cleanup https:\/\/winbuzzer.com\/2026\/06\/23\/linux-72-removes-kernel-side-strncpy-after-six-year-cleanup-xcxwbn\/ Publish Date: 2026-06-23 10:46:00 Source&#8230;<\/p>\n","protected":false},"author":1,"featured_media":279576,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/winbuzzer.com\/wp-content\/uploads\/2024\/01\/Featured-How-to-install-Windows-Subsystem-for-Linux-WSL-on-Windows-11.jpg","fifu_image_alt":"","footnotes":""},"categories":[48],"tags":[71],"class_list":["post-279573","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-linux","tag-linux"],"_links":{"self":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/279573"}],"collection":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/comments?post=279573"}],"version-history":[{"count":1,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/279573\/revisions"}],"predecessor-version":[{"id":279578,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/279573\/revisions\/279578"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/media\/279576"}],"wp:attachment":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/media?parent=279573"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/categories?post=279573"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/tags?post=279573"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}