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Khurram Wadee ✅Now running <a href="https://mastodon.org.uk/tags/linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#linux</a> <a href="https://mastodon.org.uk/tags/kernel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#kernel</a> 6.13.6.

hyperrealI'm curious: how are device drivers written? Like where do the developers start? How do they go from, say, Intel releases a device, to writing a driver for said device?<a href="https://tilde.zone/tags/FOSS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#FOSS</a> <a href="https://tilde.zone/tags/kernel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#kernel</a>

Jérôme Herbinet - FLOSS sower💡 Flash-back : ce que pense <a href="https://mastodon.zaclys.com/tags/LinusTorvalds" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#LinusTorvalds</a> de <a href="https://mastodon.zaclys.com/tags/Microsoft" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Microsoft</a> #️⃣ <a href="https://mastodon.zaclys.com/tags/Linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Linux</a> <a href="https://mastodon.zaclys.com/tags/LinuxKernel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#LinuxKernel</a> <a href="https://mastodon.zaclys.com/tags/Kernel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Kernel</a> <a href="https://mastodon.zaclys.com/tags/FreeSoftware" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#FreeSoftware</a> <a href="https://mastodon.zaclys.com/tags/FOSS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#FOSS</a> <a href="https://mastodon.zaclys.com/tags/FLOSS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#FLOSS</a> <a href="https://mastodon.zaclys.com/tags/LogicielsLibres" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#LogicielsLibres</a> <a href="https://mastodon.zaclys.com/tags/OpenSource" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OpenSource</a> <a href="https://mastodon.zaclys.com/tags/GAFAM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#GAFAM</a> <a href="https://mastodon.zaclys.com/tags/OperatingSystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OperatingSystem</a> <a href="https://mastodon.zaclys.com/tags/Windows10" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Windows10</a> <a href="https://mastodon.zaclys.com/tags/Windows11" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Windows11</a> <a href="https://youtu.be/HujG1LCscZg" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://youtu.be/HujG1LCscZg</a>

Christian Brauner 🦊🐺Picked backed up the work for VFS {g,u}id squashing. IOW, mapping all {g,u}ids down to a single {g,u}id. Any process that doesn't have that {g,u}id but is still privileged otherwise will write to disk as the squashed {g,u}id. I just finished a draft and selftests that miraculously work.<a href="https://web.git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git/log/?h=work.idmapped.squash" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://web.git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git/log/?h=work.idmapped.squash</a>Probably "bugs galore" at this point. Needs more thinking.<a href="https://mastodon.social/tags/linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#linux</a> <a href="https://mastodon.social/tags/kernel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#kernel</a> <a href="https://mastodon.social/tags/vfs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#vfs</a> <a href="https://mastodon.social/tags/filesystems" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#filesystems</a>

Kernel Comments/* Export of this software from the United States of America may require a specific license from the United States Government. It is the responsibility of any person or organization contemplating export to obtain such a license before exporting. */<a href="https://elixir.bootlin.com/linux/v6.13.6/source/include/linux/sunrpc/gss_krb5.h#L16-L19" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://elixir.bootlin.com/linux/v6.13.6/source/include/linux/sunrpc/gss_krb5.h#L16-L19</a><a href="https://infosec.exchange/tags/linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#linux</a> <a href="https://infosec.exchange/tags/kernel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#kernel</a> <a href="https://infosec.exchange/tags/kerberos" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#kerberos</a> <a href="https://infosec.exchange/tags/cryptowars" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cryptowars</a>

Olly 👾:linux: Strap in, get ready for more Rust Drivers in Linux Kernel.Rust is alive and well in the Linux kernel and is expected to translate into noticeable benefits shortly, though its integration with the largely C-oriented codebase still looks uneasy. [The Linux and Rust communities still have some issues to work out.]<a href="https://rust-for-linux.com/rust-kernel-policy" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://rust-for-linux.com/rust-kernel-policy</a><a href="https://nerdculture.de/tags/linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#linux</a> <a href="https://nerdculture.de/tags/kernel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#kernel</a> <a href="https://nerdculture.de/tags/memory" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#memory</a> <a href="https://nerdculture.de/tags/safety" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#safety</a> <a href="https://nerdculture.de/tags/rust" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#rust</a> <a href="https://nerdculture.de/tags/drivers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#drivers</a> <a href="https://nerdculture.de/tags/it" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#it</a> <a href="https://nerdculture.de/tags/security" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#security</a> <a href="https://nerdculture.de/tags/privacy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#privacy</a> <a href="https://nerdculture.de/tags/engineer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#engineer</a> <a href="https://nerdculture.de/tags/media" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#media</a> <a href="https://nerdculture.de/tags/programming" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#programming</a> <a href="https://nerdculture.de/tags/tech" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#tech</a> <a href="https://nerdculture.de/tags/news" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#news</a>

Kernel Comments/* No other CPUs to shoot down */<a href="https://elixir.bootlin.com/linux/v6.13.6/source/arch/x86/kernel/reboot.c#L987" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://elixir.bootlin.com/linux/v6.13.6/source/arch/x86/kernel/reboot.c#L987</a><a href="https://infosec.exchange/tags/linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#linux</a> <a href="https://infosec.exchange/tags/kernel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#kernel</a> <a href="https://infosec.exchange/tags/x86" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#x86</a>

unixbhaskar<a href="https://youtu.be/k7kQFcEG-J8" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://youtu.be/k7kQFcEG-J8</a><a href="https://mastodon.social/tags/linuxadmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#linuxadmin</a> <a href="https://mastodon.social/tags/kernel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#kernel</a> <a href="https://mastodon.social/tags/archlinux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#archlinux</a> <a href="https://mastodon.social/tags/linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#linux</a> <a href="https://mastodon.social/tags/opensource" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#opensource</a> <a href="https://mastodon.social/tags/package" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#package</a>

unixbhaskarUmm...easy-peasy 😜 ...especially, when other people do the hard work...please give them back the due credit.<a href="https://youtu.be/k7kQFcEG-J8" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://youtu.be/k7kQFcEG-J8</a><a href="https://fosstodon.org/tags/linuxadmin" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#linuxadmin</a> <a href="https://fosstodon.org/tags/kernel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#kernel</a> <a href="https://fosstodon.org/tags/archlinux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#archlinux</a> <a href="https://fosstodon.org/tags/opensource" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#opensource</a> <a href="https://fosstodon.org/tags/package" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#package</a>

Kernel Comments/* XXX why +4 ? */<a href="https://elixir.bootlin.com/linux/v6.13.6/source/fs/bcachefs/xattr.c#L86" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://elixir.bootlin.com/linux/v6.13.6/source/fs/bcachefs/xattr.c#L86</a><a href="https://infosec.exchange/tags/linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#linux</a> <a href="https://infosec.exchange/tags/kernel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#kernel</a> <a href="https://infosec.exchange/tags/bcachefs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#bcachefs</a>

st1nger :unverified: 🏴‍☠️ :linux: :freebsd:On <a href="https://infosec.exchange/tags/Apple" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Apple</a> <a href="https://infosec.exchange/tags/Exclaves" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Exclaves</a> (M4 and A18 based systems). Exclaves are a new set of <a href="https://infosec.exchange/tags/security" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#security</a> features that represent a significant enhancement for XNU’s traditional monolithic kernel. Exclaves refer to resources that are isolated from <a href="https://infosec.exchange/tags/XNU" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#XNU</a>, protected even if the <a href="https://infosec.exchange/tags/kernel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#kernel</a> is compromised. These resources are pre-defined when the OS is built, are identified by name or id, have different types, are initialised at boot time, and are organized into unique domains. <a href="https://infosec.exchange/tags/SPTM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SPTM</a> protects exclave memory from XNU with new exclave-specific page types. <a href="https://randomaugustine.medium.com/on-apple-exclaves-d683a2c37194" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://randomaugustine.medium.com/on-apple-exclaves-d683a2c37194</a>

Hellarghon<a href="https://www.kernelcast.es/noticias/2378179_linux-6-14-rc6-ultimos-ajustes-antes-del-lanzamiento-estable" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.kernelcast.es/noticias/2378179_linux-6-14-rc6-ultimos-ajustes-antes-del-lanzamiento-estable</a><a href="https://masto.es/tags/linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#linux</a> <a href="https://masto.es/tags/kernel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#kernel</a>

Darth ŠČ! (PeerTube)Linux Kernel Virtual Machines With QEMU/KVM <a href="https://tux-edu.tv/videos/watch/ea1a33a1-44bf-4988-a9fe-03598a568aa5" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://tux-edu.tv/videos/watch/ea1a33a1-44bf-4988-a9fe-03598a568aa5</a>

Thorsten Leemhuis (acct. 1/4)'"Strobelight, Meta’s profiling orchestrator. […]Using Strobelight, we’ve seen significant efficiency wins, including one that has resulted in an estimated 15,000 servers’ worth of annual capacity savings.[…]Strobelight’s profilers are often, but not exclusively, built using <a href="https://fosstodon.org/tags/eBPF" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#eBPF</a>, which is a <a href="https://fosstodon.org/tags/Linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Linux</a> <a href="https://fosstodon.org/tags/kernel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#kernel</a> technology […]'"(Posted in January)<a href="https://engineering.fb.com/2025/01/21/production-engineering/strobelight-a-profiling-service-built-on-open-source-technology/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://engineering.fb.com/2025/01/21/production-engineering/strobelight-a-profiling-service-built-on-open-source-technology/</a> <a href="https://fosstodon.org/tags/LinuxKernel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#LinuxKernel</a>

Patchday RobotNew Version: <a href="https://social.adlerweb.info/tags/Linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Linux</a> <a href="https://social.adlerweb.info/tags/Kernel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Kernel</a> 6.14-rc6 (mainline;All) <a href="https://www.kernel.org/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.kernel.org/</a>

Thorsten Leemhuis (acct. 1/4)Luca Cavallin writes:"[…] I recently revisited my old operating systems coursework and realized how much of it felt too abstract […] That's when I decided to pick up Robert Love's <a href="https://fosstodon.org/tags/LinuxKernel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#LinuxKernel</a> Development book. […] still offer good insights into the fundamental ideas behind <a href="https://fosstodon.org/tags/Linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Linux</a> internals. […][…] In this blog post, I'll walk you through some of the biggest takeaways from my <a href="https://fosstodon.org/tags/kernel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#kernel</a> deep dive, with some personal commentary alongside the factual details. […]"<a href="https://www.lucavall.in/blog/a-quick-journey-into-the-linux-kernel" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.lucavall.in/blog/a-quick-journey-into-the-linux-kernel</a>

Thorsten Leemhuis (acct. 1/4)<a href="https://fosstodon.org/tags/Linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Linux</a> 6.14-rc6 is out:<a href="https://lore.kernel.org/lkml/CAHk-=whWKLW6k4NSCDq2SzfAKm4NM2fPj=+dgNwrceozd_cc9Q@mail.gmail.com/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://lore.kernel.org/lkml/CAHk-=whWKLW6k4NSCDq2SzfAKm4NM2fPj=+dgNwrceozd_cc9Q@mail.gmail.com/</a>"'This release remains on track, nothing special to report. The biggest patch here is for the AMD microcode signing snafu[1], other than that it all looks entirely regular with small fixes spread fairly normally across the board.Shortlog appended for people who want to get a flavor of the details, Linus'"[1] see <a href="https://git.kernel.org/torvalds/c/bb2281fb05e50108ce95c43ab7e701ee564565c8" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://git.kernel.org/torvalds/c/bb2281fb05e50108ce95c43ab7e701ee564565c8</a> and its changes like <a href="https://git.kernel.org/torvalds/c/50cef76d5cb0e199cda19f026842560f6eedc4f7" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://git.kernel.org/torvalds/c/50cef76d5cb0e199cda19f026842560f6eedc4f7</a><a href="https://fosstodon.org/tags/kernel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#kernel</a> <a href="https://fosstodon.org/tags/LinuxKernel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#LinuxKernel</a>

Pyrzout :vm:Kernel saunters – How Apple rearranged its XNU kernel with exclaves – Source: go.theregister.com <a href="https://ciso2ciso.com/kernel-saunters-how-apple-rearranged-its-xnu-kernel-with-exclaves-source-go-theregister-com/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://ciso2ciso.com/kernel-saunters-how-apple-rearranged-its-xnu-kernel-with-exclaves-source-go-theregister-com/</a> <a href="https://social.skynetcloud.site/tags/rssfeedpostgeneratorecho" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#rssfeedpostgeneratorecho</a> <a href="https://social.skynetcloud.site/tags/TheRegisterSecurity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#TheRegisterSecurity</a> <a href="https://social.skynetcloud.site/tags/CyberSecurityNews" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#CyberSecurityNews</a> <a href="https://social.skynetcloud.site/tags/TheRegister" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#TheRegister</a> <a href="https://social.skynetcloud.site/tags/kernel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#kernel</a>

Ethan Carter EdwardsCheckout my latest blog post on learning Kernel Hacking through the Kernel Self Protection Project! <a href="https://ethancedwards.com/blog/kernel-hacking-with-kspp" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://ethancedwards.com/blog/kernel-hacking-with-kspp</a> In it, I explore ways for beginners to contribute to the kernel and why the KSPP's efforts are so important.<a href="https://fosstodon.org/tags/linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#linux</a> <a href="https://fosstodon.org/tags/security" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#security</a> <a href="https://fosstodon.org/tags/kspp" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#kspp</a> <a href="https://fosstodon.org/tags/hardening" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#hardening</a> <a href="https://fosstodon.org/tags/foss" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#foss</a> <a href="https://fosstodon.org/tags/upstreamfirst" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#upstreamfirst</a> <a href="https://fosstodon.org/tags/linuxkernel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#linuxkernel</a> <a href="https://fosstodon.org/tags/kernel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#kernel</a> <a href="https://fosstodon.org/tags/programming" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#programming</a> <a href="https://fosstodon.org/tags/c" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#c</a> <a href="https://fosstodon.org/tags/development" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#development</a> <a href="https://fosstodon.org/tags/oss" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#oss</a> <a href="https://fosstodon.org/tags/freesoftware" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#freesoftware</a> <a href="https://fosstodon.org/tags/lowlevel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#lowlevel</a>

Jarkko SakkinenWould it be fair judgement to drop the use of write() system call from a video driver? I.e. rely on QBUF/DQBUF ioctls only... I'd figure that v4l2-loopback has read/write for the sake of legacy right? <a class="hashtag" href="https://social.kernel.org/tag/linux" rel="nofollow noopener noreferrer" target="_blank">#linux</a> <a class="hashtag" href="https://social.kernel.org/tag/kernel" rel="nofollow noopener noreferrer" target="_blank">#kernel</a> <a class="hashtag" href="https://social.kernel.org/tag/media" rel="nofollow noopener noreferrer" target="_blank">#media</a>

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