TrustZone Intermezzo: Broken OP-TEE Memory Isolation on i.MX 8M https://lobste.rs/s/uz1fle #linux #security
https://sigma-star.at/blog/2026/06/trustzone-intermezzo/
linux
You are not expected to understand this https://en.wikipedia.org/wiki/A_Commentary_on_the_UNIX_Operating_System
![A screenshot from Wikpedia.
Title: You are not expected to understand this
Text read:
The infamous program comment "You are not expected to understand this" occurs on line 2238 of the source code (Lions' Commentary, p. 22) at the end of a comment explaining the process exchange mechanism. It refers to line 325 of the file slp.c.[9] The source code reads:[10][11]
The source code:
/*
* If the new process paused because it was
* swapped out, set the stack level to the last call
* to savu(u_ssav). This means that the return
* which is executed immediately after the call to aretu
* actually returns from the last routine which did
* the savu.
*
* You are not expected to understand this.
*/
if(rp->p_flag&SSWAP) {
rp->p_flag =& ~SSWAP;
aretu(u.u_ssav);
}
Taken from https://en.wikipedia.org/wiki/A_Commentary_on_the_UNIX_Operating_System](/proxy/post_attachment/1111351/c287bda5b6.png "A screenshot from Wikpedia.
Title: You are not expected to understand this
Text read:
The infamous program comment \"You are not expected to understand this\" occurs on line 2238 of the source code (Lions' Commentary, p. 22) at the end of a comment explaining the process exchange mechanism. It refers to line 325 of the file slp.c.[9] The source code reads:[10][11]
The source code:
/*
* If the new process paused because it was
* swapped out, set the stack level to the last call
* to savu(u_ssav). This means that the return
* which is executed immediately after the call to aretu
* actually returns from the last routine which did
* the savu.
*
* You are not expected to understand this.
*/
if(rp->p_flag&SSWAP) {
rp->p_flag =& ~SSWAP;
aretu(u.u_ssav);
}
Taken from https://en.wikipedia.org/wiki/A_Commentary_on_the_UNIX_Operating_System")
Bringing Swift through Distrobox on NixOS via @wezm https://lobste.rs/s/l4ziyp #linux #swift
https://carette.xyz/posts/distrobox_and_swift/
Hundreds of AUR packages attacked by infostealer via @vv https://lobste.rs/s/ta0sem #linux #security
https://lists.archlinux.org/archives/list/aur-general@lists.archlinux.org/thread/FGXPCB3ZVCJIV7FX323SBAX2JHYB7ZS4/
A daily #Linux command from #LinuxLexiconBot:
xman (1) - Manual page display program for the X Window System
I am a human, but my little bot posts a random Linux command daily. If you don't want to see it you can mute the LinuxLexiconBot hashtag.
xman (1) - Manual page display program for the X Window System
I am a human, but my little bot posts a random Linux command daily. If you don't want to see it you can mute the LinuxLexiconBot hashtag.
Happy hacking!
Core dump epidemiology: fixing an 18-year-old bug https://lobste.rs/s/qacs6u #debugging #linux
https://openai.com/index/core-dump-epidemiology-data-infrastructure-bug/
🍵 
Manche Essays altern.
Dieser scheint leider immer aktueller zu werden.
🖤 Cyberpunk ist keine Zukunft mehr.
https://ray-high.com/essays/cyberpunk-ist-keine-zukunft-mehr.html
#Cyberpunk #KI #Gesellschaft #Technologie #DigitaleSouveränität #OpenSource #Linux #essays #buchstodon #selfpublishing
A daily #Linux command from #LinuxLexiconBot:
dbus-update-activation-environment (1) - update environment used for D-Bus session services
I am a human, but my little bot posts a random Linux command daily. If you don't want to see it you can mute the LinuxLexiconBot hashtag.
dbus-update-activation-environment (1) - update environment used for D-Bus session services
I am a human, but my little bot posts a random Linux command daily. If you don't want to see it you can mute the LinuxLexiconBot hashtag.
Happy hacking!
Der 185. virtuelle #Linux-Treff Nord steht an:
Am Donnerstag, den 09.07. findet der virtuelle Linux-Treff Nord statt. Beginn ist wieder um 19:00 Uhr.
Themen werden u.a. diesmal sein:
- PQC Timeline der BigTechs wird verkürzt
- #endof10,
- wer sonst noch was mitbringt.
Wer mit dabei sein und z.B. eine Linuxfrage loswerden möchte, einfach eine Mail an kontakt[at]lug-noris.de senden.
Der nächste reale LTN findet am 16.07.2026 wieder beim Theo statt.
Fedora 45 Considering x86_64 Shadow Stack Usage By Default https://lobste.rs/s/pgxaog #linux #security
https://www.phoronix.com/news/Fedora-45-Consider-Shadow-Stack
Heroes of Might and Magic 2 project fheroes2 version 1.1.17 is out now https://www.gamingonlinux.com/2026/07/heroes-of-might-and-magic-2-project-fheroes2-version-1-1-17-is-out-now/
Bad Epoll (CVE-2026-46242) https://lobste.rs/s/drf6my #linux #security
https://github.com/J-jaeyoung/bad-epoll
A daily #Linux command from #LinuxLexiconBot:
xmessage (1) - display a message or query in a window (X-based /bin/echo)
I am a human, but my little bot posts a random Linux command daily. If you don't want to see it you can mute the LinuxLexiconBot hashtag.
xmessage (1) - display a message or query in a window (X-based /bin/echo)
I am a human, but my little bot posts a random Linux command daily. If you don't want to see it you can mute the LinuxLexiconBot hashtag.
Happy hacking!
Arch Linux AUR Hit By Another Wave Of Now More Sophisticated Malware Attack https://lobste.rs/s/jlavzd #linux #security
https://www.phoronix.com/news/Arch-Linux-AUR-More-Malware
How to call Linux code from a Wine process https://lobste.rs/s/1evikl #linux
https://arcanenibble.com/how-to-call-linux-code-from-a-wine-process.html
The security situation with the Arch Linux AUR got a lot worse https://www.gamingonlinux.com/2026/06/the-security-situation-with-the-arch-linux-aur-got-a-lot-worse/
ps5-linux-loader: Linux payload implementing HV exploits to run a custom bootloader https://lobste.rs/s/prfycy #hardware #linux #reversing
https://github.com/ps5-linux/ps5-linux-loader
Am 02.07. findet der Linux-Treff Nord beim Theo in der Schnepfenreuther Hauptstraße 19 statt.
Hier gibt es ab 18:00 Uhr gutes Essen und dann ab ca. 19:30 Uhr geht es mit #Linux und freier Software weiter.
Es steht u.a. folgendes an:
- wir installieren Linux,
- Sie Fragen - Wir Antworten,
- wieder #endof10 (Ende nun 12.10.2027),
- und wer sonst noch etwas mitbringt.
Großer Saal oder Terrasse.
Wenn Dich freie Software und Linux interessiert komm doch vorbei.
#ltn #nürnberg #lug
Vollmondtreffen der ALIGN:
Am Dienstag, den 07.07.2026 findet in Nürnberg wieder um 17:00 Uhr das Treffen der #ALIGN im Delphi, Innere Laufer Gasse 22 statt.
#Linux, freie Software und andere Themen stehen auf der Agenda.
Diese Info findet sich auch auf unserer Webseite unter Termine.
Einfach vorbeischauen, auch "Neue" sind gerne gesehen. Wir freuen uns auf eine rege Teilnahme.
Wegen der Tischreservierung bitte vorab eine Info an rqxzbader[at]gmx.de senden.
Vielen Dank.
kernel asynchronous reads in PostgreSQL 19 (io_uring) https://lobste.rs/s/omfy64 #databases #linux
https://dev.to/franckpachot/iouring-buffered-reads-in-postgresql-19-iouring-mcn
GNOME Foundation: Announcing Our First Fellows via @fossdd https://lobste.rs/s/agyyes #linux
https://blogs.gnome.org/foundation/2026/06/11/announcing-our-first-fellows/
yserver: A modern X11 server written from scratch in Rust https://lobste.rs/s/yy8je0 #linux
https://github.com/joske/yserver