--- title: Linux 7.1 To Retire UDP-Lite - Allows For Better... description: The Linux 7.1 kernel is set to remove UDP-Lite support, a protocol that has gone effectively unused for years. A null-pointer dereference bug discovered in... canonical: https://daily.dev/posts/linux-7-1-to-retire-udp-lite---allows-for-better-performance-with-cleansed-code-e28wnnt8s twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Linux 7.1 To Retire UDP-Lite - Allows For Better Performance With Cleansed Code | daily.dev og:description: The Linux 7.1 kernel is set to remove UDP-Lite support, a protocol that has gone effectively unused for years. A null-pointer dereference bug discovered in... og:url: https://daily.dev/posts/linux-7-1-to-retire-udp-lite---allows-for-better-performance-with-cleansed-code-e28wnnt8s og:image: https://api.daily.dev/og/posts/E28WnNt8S.png og:image:alt: Linux 7.1 To Retire UDP-Lite - Allows For Better Performance With Cleansed Code og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Linux 7.1 To Retire UDP-Lite - Allows For Better Performance With Cleansed Code **[Phoronix](https://daily.dev/sources/phoronix)** · 2 min read · 0 upvotes · 0 comments ## Summary The Linux 7.1 kernel is set to remove UDP-Lite support, a protocol that has gone effectively unused for years. A null-pointer dereference bug discovered in 2023 by syzbot—which had persisted since 2016 without real-world users triggering it—prompted a deprecation notice. With no complaints since then, the removal is now proceeding. Stripping UDP-Lite conditionals from the fast path yields a measurable performance gain: roughly 10% more packets per second (13.3 Mpps to 14.7 Mpps) in UDP round-robin tests with 20,000 flows on AMD EPYC Zen 2 hardware, or ~3% with FDO enabled. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Linux 7.0 Scores \+12% In UDP Network Performance Test From Manually Inlining Function](https://daily.dev/posts/linux-7-0-scores-12-in-udp-network-performance-test-from-manually-inlining-function-mdqgxm2cw) · Phoronix · 0 upvotes · 0 comments - [Linux 7.2 Showing Some Unexpected & Nice Performance Gains On AMD EPYC Sorano](https://daily.dev/posts/linux-7-2-showing-some-unexpected-nice-performance-gains-on-amd-epyc-sorano-rhg5o7iuf) · Phoronix · 0 upvotes · 0 comments - [Linux 7.0 Adds A New Minor Performance Optimization Shown With AMD Zen 2 CPUs](https://daily.dev/posts/linux-7-0-adds-a-new-minor-performance-optimization-shown-with-amd-zen-2-cpus-5zzpjidx0) · Phoronix · 0 upvotes · 0 comments --- Tags: [#performance](https://daily.dev/tags/performance), [#linux](https://daily.dev/tags/linux), [#networking](https://daily.dev/tags/networking) [View this post on daily.dev](https://daily.dev/posts/linux-7-1-to-retire-udp-lite---allows-for-better-performance-with-cleansed-code-e28wnnt8s) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Linux 7.1 To Retire UDP-Lite - Allows For Better Performance With Cleansed Code","url":"https://daily.dev/posts/linux-7-1-to-retire-udp-lite---allows-for-better-performance-with-cleansed-code-e28wnnt8s","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/linux-7-1-to-retire-udp-lite---allows-for-better-performance-with-cleansed-code-e28wnnt8s"},"datePublished":"2026-03-16T10:45:37.931Z","dateModified":"2026-03-16T10:48:14.314Z","description":"The Linux 7.1 kernel is set to remove UDP-Lite support, a protocol that has gone effectively unused for years. A null-pointer dereference bug discovered in...","image":"https://media.daily.dev/image/upload/s--VDukGCjf--/f_auto/v1722860399/public/Placeholder%2002","thumbnailUrl":"https://media.daily.dev/image/upload/s--VDukGCjf--/f_auto/v1722860399/public/Placeholder%2002","isAccessibleForFree":true,"articleSection":"Phoronix","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Phoronix","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/6a26ba379dd64932830aa0c9803dd7ee","url":"https://daily.dev/sources/phoronix"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/linux-7-1-to-retire-udp-lite---allows-for-better-performance-with-cleansed-code-e28wnnt8s","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"performance,linux,networking","timeRequired":"PT2M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Phoronix","item":"https://daily.dev/sources/phoronix"},{"@type":"ListItem","position":3,"name":"Linux 7.1 To Retire UDP-Lite - Allows For Better Performance With Cleansed Code"}]} ```