Tootfinder

I'll be running a hands-on two-hour workstop on #firmware analysis at #DO_BYTE: https://fahrplan.do-byte.de/do-byte-20

Meanwhile, almost 50 years ago. Byte, May 1978. When Apple was still Apple.
#byte

Noch ein paar der zuletzt hier besonders häufig geteilten #News:
„Copy Fail“: Linux-root in allen großen Distributionen mit 732 Byte Python

„Copy Fail“: Linux-root in allen großen Distributionen mit 732 Byte Python
Die Entdecker haben die root-Lücke im Linux-Kernel „Copy Fail“ getauft. Alle größeren Distributionen seit 2017 sind betroffen.

On Website Technicals (2018-02) - Tech updates: Bing head, a saved byte, boxed cols and rounded corners, Google AdSense Auto Ads. - https://www.earth.org.uk/note-on-site-technicals-9.html

On Website Technicals (2018-02)
Tech updates: Bing head, a saved byte, boxed cols and rounded corners, Google AdSense Auto Ads.

Einige der zuletzt hier besonders häufig geteilten #News:
„Copy Fail“: Linux-root in allen großen Distributionen mit 732 Byte Python

„Copy Fail“: Linux-root in allen großen Distributionen mit 732 Byte Python
Die Entdecker haben die root-Lücke im Linux-Kernel „Copy Fail“ getauft. Alle größeren Distributionen seit 2017 sind betroffen.

Celebrating Vappu by updating some servers. So that public holiday doesn't feel too different from a working day. https://cyberinsider.com/copy-fail-gives-root-access-to-all-linux-systems-via-732-byte-exploit/

Paris-based Tsuga, whose observability software runs in customers' own clouds to help them skip per-byte ingestion costs, raised a $35M Series A led by Singular (Ana Maria Constantin/The Next Web)
https://thenextweb.com/news/tsuga-35-million-series-a-observability

Making progress on the FPGA debug platform.
The 8b10b ILA is at minimum-functional status now although I still need to add more configuration for triggers. But it does *work* (currently it triggers on any character other than a K28.5 in the low byte lane) and you can adjust trigger position etc.
The VIO is pretty much done, I might tweak the ngscopeclient side UI a bit but I see no reason for fundamental changes elsewhere in the stack.
The regular ILA core was a pretty stra…

RE: https://infosec.exchange/@lcamtuf/116517194178120536
It's also fucking hilarious when you have an environment variable with a non-UTF-8 byte in it.

winner winner chicken dinner - I found the part dealing with page indices for the ME Gen 2 file system :)
The 0x78 is a fixed value appearing as the second byte for every page I see in my samples, and the one bit masked here besides the highest byte is never set.

Ugh this morning the Android support on my #SailfishOS phone entered a crash/restart loop, rendering all Android apps unusable 😩
Apparently the Android VM runs out of memory and there's no fix.
UPDATE: It seems I have found a solution/workaround¹ 🥳

Android App Support crashes after starting because VM runs out of heap
This morning my Xperia 10iii (SFOS 5.0.0.77) entered the Android restart loop as well. After several attempts, I managed to extract these logs: 05-05 08:08:43.223 310 338 W system_server: Throwing OutOfMemoryError "Failed to allocate a 104 byte allocation with 438952 free bytes and 428KB until OOM, target footprint 268435456, growth limit 268435456; giving up on allocation because <1% of heap free after GC." (VmSize 17406728 kB) 05-05 08:08:43.223 310 338 E AndroidRuntime: *** FATAL EX…

from my link log —
Consistent overhead byte stuffing for binary logs.
https://www.pvk.ca/Blog/2021/01/11/stuff-your-logs/
saved 2021-03-19 https:/…

Gut gewürzt in die Nacht #do_byte #GrenzenÜberwürzen

🇺🇦 #NowPlaying on KEXP's #AfternoonShow
Janelle Monše:
🎵 Take a Byte
#JanelleMonáe
https://open.spotify.com/track/5Fw17rh1qEC6YoT32BijNI

This is a fun one. I have a Debian box with a FTDI USB-UART dongle on it that is connected to an FPGA board that runs a UART receiver which displays
When I open the UART in "screen" and press keys, everything works as intended.
But when I try to send a few bytes manually by doing "echo -ne \xaa > /dev/ttyUSB7", this also works... but a few hundred ms after the "echo" command finishes, a mysterious 0x13 byte appears. Any idea WTF is happening?

Let me introduce you to the rabbit hole of the month. What a superb publication! Number one: advertising in mags was still a big thing.
Number two: it brought back that rush of enthousiasm and curiosity, like when i opened my first Toshiba 8088 laptop, at home, on my kitchentable. When Windows was still fun. OS/2!
Number three: The Chaos Manor, with dr. Jerry Pournelle. I don't need to say anything else.

We have successfully restored a laptop's #firmware today at DO_BYTE.
The flash part is a WSON, so a pogo pin adapter was necessary, and I had one and brought it today.
Within less than 10 minutes, the procedure was done.
Happy to see another #laptop boot again! 🥳