#kernel — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #kernel, aggregated by home.social.
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Understanding the Linux Kernel: The Linux Kernel Startup
https://internals-for-interns.com/posts/linux-kernel-startup/
#HackerNews #Linux #Kernel #Kernel #Startup #Open #Source #Technology #Development
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[$] Buffered atomic writes, writethrough, and more
In back-to-back sessions at the start of the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit (which spilled over into a third slot), the atomic-buffered-writes fe [...]
https://lwn.net/Articles/1072019/ #LWN #Linux #kernel #PostgreSQL #BPF #io_uring
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[$] Buffered atomic writes, writethrough, and more
In back-to-back sessions at the start of the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit (which spilled over into a third slot), the atomic-buffered-writes fe [...]
https://lwn.net/Articles/1072019/ #LWN #Linux #kernel #PostgreSQL #BPF #io_uring
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[$] Buffered atomic writes, writethrough, and more
In back-to-back sessions at the start of the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit (which spilled over into a third slot), the atomic-buffered-writes fe [...]
https://lwn.net/Articles/1072019/ #LWN #Linux #kernel #PostgreSQL #BPF #io_uring
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[$] Buffered atomic writes, writethrough, and more
In back-to-back sessions at the start of the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit (which spilled over into a third slot), the atomic-buffered-writes fe [...]
https://lwn.net/Articles/1072019/ #LWN #Linux #kernel #PostgreSQL #BPF #io_uring
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[$] Buffered atomic writes, writethrough, and more
In back-to-back sessions at the start of the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit (which spilled over into a third slot), the atomic-buffered-writes fe [...]
https://lwn.net/Articles/1072019/ #LWN #Linux #kernel #PostgreSQL #BPF #io_uring
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Three stable kernels for Thursday
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[$] Keeping COWs in context (a.k.a. anonymous reverse mapping)
The kernel's reverse-mapping machinery is charged with locating the page-table entries that refer to a given page in memory. The reverse mapping of anonymous pages is handled diff [...]
https://lwn.net/Articles/1072378/ #LWN #Linux #kernel #Git #BPF
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[$] Keeping COWs in context (a.k.a. anonymous reverse mapping)
The kernel's reverse-mapping machinery is charged with locating the page-table entries that refer to a given page in memory. The reverse mapping of anonymous pages is handled diff [...]
https://lwn.net/Articles/1072378/ #LWN #Linux #kernel #Git #BPF
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[$] Keeping COWs in context (a.k.a. anonymous reverse mapping)
The kernel's reverse-mapping machinery is charged with locating the page-table entries that refer to a given page in memory. The reverse mapping of anonymous pages is handled diff [...]
https://lwn.net/Articles/1072378/ #LWN #Linux #kernel #Git #BPF
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[$] Keeping COWs in context (a.k.a. anonymous reverse mapping)
The kernel's reverse-mapping machinery is charged with locating the page-table entries that refer to a given page in memory. The reverse mapping of anonymous pages is handled diff [...]
https://lwn.net/Articles/1072378/ #LWN #Linux #kernel #Git #BPF
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Falha Fragnasia no kernel Linux permite acesso root através de erro no subsistema TCP
🔗 https://tugatech.com.pt/t83491-falha-fragnasia-no-kernel-linux-permite-acesso-root-atraves-de-erro-no-subsistema-tcp -
Whenever i boot ubuntu from usb and select 'Try or Install Ubuntu' it gives the following errors: #boot #systeminstallation #usb #kernel
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Whenever i boot ubuntu from usb and select 'Try or Install Ubuntu' it gives the following errors: #boot #systeminstallation #usb #kernel
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Whenever i boot ubuntu from usb and select 'Try or Install Ubuntu' it gives the following errors: #boot #systeminstallation #usb #kernel
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Passwort - der Podcast von heise security: KI Fail, Copy Fail, S/MIME Fail
( XXL Folge 2,4 Stunden, leider ohne Kapitelmarker und Folgennummer, aber interessant wie immer. :-* O:-) )
#CopyFail zieht weite Kreise und geht auch am #Podcast nicht vorüber:
Die #Sicherheitslücke in #Linux ist technisch interessant, was Christopher und Sylvester allerdings an die Grenze ihres Wissens um #Kernel-Innereien bringt. Darüber hinaus wirft Copy Fail diverse grundsätzliche Fragen zur #Sicherheit von Linux und zur Handhabung von @Sicherheitslücken auf, die die Hosts diskutieren.
Außerdem geht in dieser Episode um eine löschwütige KI und natürlich um PKI, zumindest ein bisschen. #DNS #Mail
Webseite der Episode: https://passwort.podigee.io/57-ki-fail-copy-fail-s-mime-fail
Mediendatei: https://audio.podigee-cdn.net/2485319-m-32db6ba0613c9c3319703a63e31139a4.mp3?source=feed
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Passwort - der Podcast von heise security: KI Fail, Copy Fail, S/MIME Fail
( XXL Folge 2,4 Stunden, leider ohne Kapitelmarker und Folgennummer, aber interessant wie immer. :-* O:-) )
#CopyFail zieht weite Kreise und geht auch am #Podcast nicht vorüber:
Die #Sicherheitslücke in #Linux ist technisch interessant, was Christopher und Sylvester allerdings an die Grenze ihres Wissens um #Kernel-Innereien bringt. Darüber hinaus wirft Copy Fail diverse grundsätzliche Fragen zur #Sicherheit von Linux und zur Handhabung von @Sicherheitslücken auf, die die Hosts diskutieren.
Außerdem geht in dieser Episode um eine löschwütige KI und natürlich um PKI, zumindest ein bisschen. #DNS #Mail
Webseite der Episode: https://passwort.podigee.io/57-ki-fail-copy-fail-s-mime-fail
Mediendatei: https://audio.podigee-cdn.net/2485319-m-32db6ba0613c9c3319703a63e31139a4.mp3?source=feed
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Passwort - der Podcast von heise security: KI Fail, Copy Fail, S/MIME Fail
( XXL Folge 2,4 Stunden, leider ohne Kapitelmarker und Folgennummer, aber interessant wie immer. :-* O:-) )
#CopyFail zieht weite Kreise und geht auch am #Podcast nicht vorüber:
Die #Sicherheitslücke in #Linux ist technisch interessant, was Christopher und Sylvester allerdings an die Grenze ihres Wissens um #Kernel-Innereien bringt. Darüber hinaus wirft Copy Fail diverse grundsätzliche Fragen zur #Sicherheit von Linux und zur Handhabung von @Sicherheitslücken auf, die die Hosts diskutieren.
Außerdem geht in dieser Episode um eine löschwütige KI und natürlich um PKI, zumindest ein bisschen. #DNS #Mail
Webseite der Episode: https://passwort.podigee.io/57-ki-fail-copy-fail-s-mime-fail
Mediendatei: https://audio.podigee-cdn.net/2485319-m-32db6ba0613c9c3319703a63e31139a4.mp3?source=feed
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#Fragnesia Made Public As Latest #Linux Local #PrivilegeEscalation #Vulnerability
A new Linux local privilege escalation flaw called Fragnesia has been disclosed as a Dirty Frag-like vulnerability, allowing arbitrary byte writes into the #kernel page cache of read-only files through a separate ESP/XFRM logic bug.
#dirtyfrag #security -
#Fragnesia Made Public As Latest #Linux Local #PrivilegeEscalation #Vulnerability
A new Linux local privilege escalation flaw called Fragnesia has been disclosed as a Dirty Frag-like vulnerability, allowing arbitrary byte writes into the #kernel page cache of read-only files through a separate ESP/XFRM logic bug.
#dirtyfrag #security -
#Fragnesia Made Public As Latest #Linux Local #PrivilegeEscalation #Vulnerability
A new Linux local privilege escalation flaw called Fragnesia has been disclosed as a Dirty Frag-like vulnerability, allowing arbitrary byte writes into the #kernel page cache of read-only files through a separate ESP/XFRM logic bug.
#dirtyfrag #security -
#Fragnesia Made Public As Latest #Linux Local #PrivilegeEscalation #Vulnerability
A new Linux local privilege escalation flaw called Fragnesia has been disclosed as a Dirty Frag-like vulnerability, allowing arbitrary byte writes into the #kernel page cache of read-only files through a separate ESP/XFRM logic bug.
#dirtyfrag #security -
#Fragnesia Made Public As Latest #Linux Local #PrivilegeEscalation #Vulnerability
A new Linux local privilege escalation flaw called Fragnesia has been disclosed as a Dirty Frag-like vulnerability, allowing arbitrary byte writes into the #kernel page cache of read-only files through a separate ESP/XFRM logic bug.
#dirtyfrag #security -
Passwort - der Podcast von heise security: KI Fail, Copy Fail, S/MIME Fail
( XXL Folge 2,4 Stunden, leider ohne Kapitelmarker und Folgennummer aber interessant wie immer. :-* O:-) )
#CopyFail zieht weite Kreise und geht auch am #Podcast nicht vorüber:
Die #Sicherheitslücke in #Linux ist technisch interessant, was Christopher und Sylvester allerdings an die Grenze ihres Wissens um #Kernel-Innereien bringt. Darüber hinaus wirft Copy Fail diverse grundsätzliche Fragen zur #Sicherheit von Linux und zur Handhabung von @Sicherheitslücken auf, die die Hosts diskutieren.
Außerdem geht in dieser Episode um eine löschwütige KI und natürlich um PKI, zumindest ein bisschen. #DNS #Mail
Webseite der Episode: https://passwort.podigee.io/57-ki-fail-copy-fail-s-mime-fail
Mediendatei: https://audio.podigee-cdn.net/2485319-m-32db6ba0613c9c3319703a63e31139a4.mp3?source=feed
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Looks like the kernel version 5.10.255 has been patched for both copyFail and dirtyFrag.
That may be a safer bet going from a 5.4.* kernel version than a jump all the way up to a 7.1.* kernel. For context, this would be a manual kernel upgrade on an Ubuntu 20.04 virtual machine.
https://kernel.ubuntu.com/mainline/v5.10.255/
what do you think?
#Linux #copyFail #dirtyFrag #kernel #ubuntu -
Looks like the kernel version 5.10.255 has been patched for both copyFail and dirtyFrag.
That may be a safer bet going from a 5.4.* kernel version than a jump all the way up to a 7.1.* kernel. For context, this would be a manual kernel upgrade on an Ubuntu 20.04 virtual machine.
https://kernel.ubuntu.com/mainline/v5.10.255/
what do you think?
#Linux #copyFail #dirtyFrag #kernel #ubuntu -
Looks like the kernel version 5.10.255 has been patched for both copyFail and dirtyFrag.
That may be a safer bet going from a 5.4.* kernel version than a jump all the way up to a 7.1.* kernel. For context, this would be a manual kernel upgrade on an Ubuntu 20.04 virtual machine.
https://kernel.ubuntu.com/mainline/v5.10.255/
what do you think?
#Linux #copyFail #dirtyFrag #kernel #ubuntu -
Looks like the kernel version 5.10.255 has been patched for both copyFail and dirtyFrag.
That may be a safer bet going from a 5.4.* kernel version than a jump all the way up to a 7.1.* kernel. For context, this would be a manual kernel upgrade on an Ubuntu 20.04 virtual machine.
https://kernel.ubuntu.com/mainline/v5.10.255/
what do you think?
#Linux #copyFail #dirtyFrag #kernel #ubuntu -
Linux kernel question:
I manually upgraded a cloud virtual machine (test) running on Ubuntu 20.04 with a 5.4** kernel version to the latest 7.1 kernel available today:
https://kernel.ubuntu.com/mainline/daily/2026-05-13/
I rebooted and it seemed to work fine. Apache web server is running. Doesn't seem to have any problems, but no load is on it.
Do you think it would be fine to run such an old 20.04 Ubuntu version with such a recent kernel? Or should I find a more recently released 5.** series kernel and try that instead?
I am testing getting kernels patched for the recent Linux vulnerabilities, but need to run older Ubuntu 20.04 for a while yet until web applications are manually ported to run on newer versions.
#Linux #ubuntu #kernel -
An attempt on my world. . .
They used the nukes.
The future is regression. You know the exact version number (post ^0.2.1) when they broke the back of the arch of history, the day when the Project sacked socks.
#Arti @torprojectAgent Kaczynski strikes again. #EndCiv
No PVH? Just HVM to ROP for an audio assault. Got 'em! We know who the Wacos are. They are an unaccountable hate group.
#QubesOS @whonix
@QubesOSAnyway, qvm-firewall is still run by Dom0, even if fire tries to rob your vault. ICMP probes held back. They never get to the other side of the @ past dom0 hostname. Delusionals. Cheats. Liars. The bastards!
#SOCKSpocalypse #Exfiltration #CyberAttack #infosec #AgentKaczynski #DualCoreLes #StreamIsolation #Linux #Kernel #TorProject #Montana #War
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An attempt on my world. . .
They used the nukes.
The future is regression. You know the exact version number (post ^0.2.1) when they broke the back of the arch of history, the day when the Project sacked socks.
#Arti @torprojectAgent Kaczynski strikes again. #EndCiv
No PVH? Just HVM to ROP for an audio assault. Got 'em! We know who the Wacos are. They are an unaccountable hate group.
#QubesOS @whonix
@QubesOSAnyway, qvm-firewall is still run by Dom0, even if fire tries to rob your vault. ICMP probes held back. They never get to the other side of the @ past dom0 hostname. Delusionals. Cheats. Liars. The bastards!
#SOCKSpocalypse #Exfiltration #CyberAttack #infosec #AgentKaczynski #DualCoreLes #StreamIsolation #Linux #Kernel #TorProject #Montana #War
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An attempt on my world. . .
They used the nukes.
The future is regression. You know the exact version number (post ^0.2.1) when they broke the back of the arch of history, the day when the Project sacked socks.
#Arti @torprojectAgent Kaczynski strikes again. #EndCiv
No PVH? Just HVM to ROP for an audio assault. Got 'em! We know who the Wacos are. They are an unaccountable hate group.
#QubesOS @whonix
@QubesOSAnyway, qvm-firewall is still run by Dom0, even if fire tries to rob your vault. ICMP probes held back. They never get to the other side of the @ past dom0 hostname. Delusionals. Cheats. Liars. The bastards!
#SOCKSpocalypse #Exfiltration #CyberAttack #infosec #AgentKaczynski #DualCoreLes #StreamIsolation #Linux #Kernel #TorProject #Montana #War
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[$] Managing pages outside of the direct map
When Brendan Jackman proposed a session for the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit, his topic was "a pagetable library for the kernel". During the a [...]
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[$] Managing pages outside of the direct map
When Brendan Jackman proposed a session for the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit, his topic was "a pagetable library for the kernel". During the a [...]
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[$] Managing pages outside of the direct map
When Brendan Jackman proposed a session for the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit, his topic was "a pagetable library for the kernel". During the a [...]
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[$] Managing pages outside of the direct map
When Brendan Jackman proposed a session for the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit, his topic was "a pagetable library for the kernel". During the a [...]
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#Fragnesia #Linux #Kernel
"All versions affected by dirtyfrag are affected."
"Any versions without this patch: https://lists.openwall.net/netdev/2026/05/13/79 , so any Linux kernel before May 13 2026." -
🦀 IBM s390 Is The Latest Architecture Seeing Rust Linux Kernel Support
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Linux kernel maintainers proposed “Killswitch,” letting admins disable vulnerable kernel functions at runtime while patches are built and deployed. 🛡️
The proposal follows CopyFail and Dirty Frag privilege-escalation flaws, allowing vulnerable subsystems to fail safely instead of remaining exploitable in production. 🐧#TechNews #Linux #Kernel #Cybersecurity #OpenSource #FOSS #Privacy #SysAdmin #Infosec #Security #Unix #Servers #Technology #CopyFail #DirtyFrag
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Linux kernel maintainers proposed “Killswitch,” letting admins disable vulnerable kernel functions at runtime while patches are built and deployed. 🛡️
The proposal follows CopyFail and Dirty Frag privilege-escalation flaws, allowing vulnerable subsystems to fail safely instead of remaining exploitable in production. 🐧#TechNews #Linux #Kernel #Cybersecurity #OpenSource #FOSS #Privacy #SysAdmin #Infosec #Security #Unix #Servers #Technology #CopyFail #DirtyFrag
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Linux kernel maintainers proposed “Killswitch,” letting admins disable vulnerable kernel functions at runtime while patches are built and deployed. 🛡️
The proposal follows CopyFail and Dirty Frag privilege-escalation flaws, allowing vulnerable subsystems to fail safely instead of remaining exploitable in production. 🐧#TechNews #Linux #Kernel #Cybersecurity #OpenSource #FOSS #Privacy #SysAdmin #Infosec #Security #Unix #Servers #Technology #CopyFail #DirtyFrag
