--- title: Realtek RTL8723BS WiFi Linux Driver Hardened Against... description: Security hardening patches for the Realtek RTL8723BS WiFi staging driver in the Linux kernel address multiple out-of-bounds memory access vulnerabilities. The... canonical: https://daily.dev/posts/realtek-rtl8723bs-wifi-linux-driver-hardened-against-malicious-wifi-access-points-bwsdszwux twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Realtek RTL8723BS WiFi Linux Driver Hardened Against Malicious WiFi Access Points | daily.dev og:description: Security hardening patches for the Realtek RTL8723BS WiFi staging driver in the Linux kernel address multiple out-of-bounds memory access vulnerabilities. The... og:url: https://daily.dev/posts/realtek-rtl8723bs-wifi-linux-driver-hardened-against-malicious-wifi-access-points-bwsdszwux og:image: https://api.daily.dev/og/posts/bWsdsZwUX.png og:image:alt: Realtek RTL8723BS WiFi Linux Driver Hardened Against Malicious WiFi Access Points 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. # Realtek RTL8723BS WiFi Linux Driver Hardened Against Malicious WiFi Access Points **[Phoronix](https://daily.dev/sources/phoronix)** · 2 min read · 0 upvotes · 0 comments ## Summary Security hardening patches for the Realtek RTL8723BS WiFi staging driver in the Linux kernel address multiple out-of-bounds memory access vulnerabilities. The flaws, present since the driver entered Linux staging in 2017, could be triggered by malicious WiFi access points sending crafted over-the-air frames with unvalidated headers or payloads. The fixes are being merged ahead of Linux 7.2-rc3 and will be back-ported to stable kernel versions. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### What security vulnerability was fixed in the Linux RTL8723BS WiFi driver? Multiple out-of-bounds memory access issues were fixed in the Realtek RTL8723BS driver, caused by the driver failing to validate headers and payloads in over-the-air WiFi frames. A malicious access point could exploit this to trigger OOB reads or writes. Alexandru Hossu authored the fixes, merged ahead of Linux 7.2-rc3 and backported to stable kernel branches; the bugs existed since the driver's 2017 staging addition. _Track kernel driver CVEs like this one as you patch fleets running affected WiFi hardware on daily.dev._ ### Will the RTL8723BS WiFi driver security fix be backported to older Linux kernels? Yes, the out-of-bounds memory fixes for the Realtek RTL8723BS driver are being backported to existing Linux stable kernel versions in addition to landing in the upcoming 7.2-rc3 release. This matters because the underlying flaws in over-the-air frame handling have existed since the driver joined the kernel's staging tree in 2017. _Developers maintaining embedded WiFi stacks can follow kernel security backports like this on daily.dev._ ## Similar posts on daily.dev - [Linux 7.2 Staging Still Working To Tame The Realtek RTL8723BS "Beast Of A Driver"](https://daily.dev/posts/linux-7-2-staging-still-working-to-tame-the-realtek-rtl8723bs-beast-of-a-driver--rwccqvotq) · Phoronix · 0 upvotes · 0 comments - [Linux Still Working To Clean Up The Realtek RTL8723BS 802.11b/g/n WiFi Driver In 2026](https://daily.dev/posts/linux-still-working-to-clean-up-the-realtek-rtl8723bs-802-11b-g-n-wifi-driver-in-2026-hcfjeu3kx) · Phoronix · 0 upvotes · 0 comments - [Realtek RTL8723B/RTL8723BS Trying To Be Tacked On To The RTW88 Linux Driver](https://daily.dev/posts/realtek-rtl8723b-rtl8723bs-trying-to-be-tacked-on-to-the-rtw88-linux-driver-gfzh2icdg) · Phoronix · 0 upvotes · 0 comments - [High-severity bug in Broadcom software enables easy WiFi denial-of-service](https://daily.dev/posts/high-severity-bug-in-broadcom-software-enables-easy-wifi-denial-of-service-zhweza6kx) · CSO Online · 0 upvotes · 0 comments - [RTL8723BS Driver Continues Dominating The Staging Area Activity For Linux 7.3](https://daily.dev/posts/rtl8723bs-driver-continues-dominating-the-staging-area-activity-for-linux-7-3-gg0yiqjhh) · Phoronix · 0 upvotes · 0 comments --- Tags: [#linux](https://daily.dev/tags/linux) [View this post on daily.dev](https://daily.dev/posts/realtek-rtl8723bs-wifi-linux-driver-hardened-against-malicious-wifi-access-points-bwsdszwux) ```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":"Realtek RTL8723BS WiFi Linux Driver Hardened Against Malicious WiFi Access Points","url":"https://daily.dev/posts/realtek-rtl8723bs-wifi-linux-driver-hardened-against-malicious-wifi-access-points-bwsdszwux","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/realtek-rtl8723bs-wifi-linux-driver-hardened-against-malicious-wifi-access-points-bwsdszwux"},"datePublished":"2026-07-12T10:20:55.228Z","dateModified":"2026-09-14T08:56:07.767Z","description":"Security hardening patches for the Realtek RTL8723BS WiFi staging driver in the Linux kernel address multiple out-of-bounds memory access vulnerabilities. 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A malicious access point could exploit this to trigger OOB reads or writes. Alexandru Hossu authored the fixes, merged ahead of Linux 7.2-rc3 and backported to stable kernel branches; the bugs existed since the driver's 2017 staging addition. Track kernel driver CVEs like this one as you patch fleets running affected WiFi hardware on daily.dev."}},{"@type":"Question","name":"Will the RTL8723BS WiFi driver security fix be backported to older Linux kernels?","acceptedAnswer":{"@type":"Answer","text":"Yes, the out-of-bounds memory fixes for the Realtek RTL8723BS driver are being backported to existing Linux stable kernel versions in addition to landing in the upcoming 7.2-rc3 release. This matters because the underlying flaws in over-the-air frame handling have existed since the driver joined the kernel's staging tree in 2017. Developers maintaining embedded WiFi stacks can follow kernel security backports like this on daily.dev."}}]} ```