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Filtering by user: mlu

Saturday, May 9, 2026

[06:40:33] + mlu woah, that just triggered a memory hole

[06:40:54] + mlu I remember being tasked to explore the suitability of AFS for the network share at my first job

[06:41:54] + mlu iirc, squashfs on top of regular ol' NFS worked quite well

[06:43:33] + mlu I ask for fault-tolerant users :)

[06:44:04] + mlu brothchild: fun fact, there was the great outage of 2009 when nobody in the dorms had internet for 72hr

[06:44:32] + mlu was caused when a NFS_mounted music server got decomissioned and none of the systems booted

[06:45:50] + mlu don't make your boot dependent on network drives, people!

[06:46:05] + mlu and if it's dependent on network to work, then you better just make sure your network works

[06:46:46] + mlu these days, NFSv4 is usually fine :)

[06:47:16] + mlu I use NFS for my day-to-day NAS

[06:47:35] + mlu internally, it's actually just running ext4 -- I don't have much data

[06:49:15] + mlu I'd imagine ZFS would be a good option

[06:49:31] + mlu FreeBSD is a *NIX, you're cool :)

[06:54:07] + mlu virtual machine, real workload, real problems

[11:00:16] + mlu I wonder how many people blindly applied the mitigation and ended up turning off their ipsec tunnels

[11:01:40] @ mlu so the particular vulnerabilty was in the esp4/esp6 kernel modules and the rxudp module

[11:02:04] @ mlu ESP is part of ipsec (along with IKE) -- it's negotiated with IKE and the actual data is sent via ESP

[11:02:11] @ mlu thanks weasel :)

[11:02:45] @ mlu anyways, the suggested mitigation, until a patch is in is to turn off the modules that were introducing it

[11:02:51] @ mlu grungy: does introduced 24hr ago count as new?

[11:03:32] @ mlu grungy: https://nvd.nist.gov/vuln/detail/CVE-2026-43284

[11:03:52] @ mlu and the not-yet-in-nvd CVE-206-43500

[11:04:24] @ mlu but yes indeed, the rampage has already begun: I spent the past day verifying that almost all my systems were indeed affected

[11:04:54] @ mlu grungy: https://github.com/V4bel/dirtyfrag/tree/master -- this is the POC

[11:06:06] @ mlu and that's how I know my systems were affected: I skimmed the code, tested it, and sure enough, rooted

[11:06:18] @ mlu and this was before the CVE was assigned

[11:06:27] @ mlu indeed -- affects both arm and x86_64

[11:07:34] @ mlu turns out the patch didn't actually address the bug

[11:08:04] @ mlu which is part of the story: the security researchers were like: hey wait, this doesn't work

[11:08:22] @ mlu and before anyone had time to respond, someoen with a LLM noticed that based on the patch notes

[11:08:47] @ mlu and that's when the origianl researcher was like: oh well, here goes the POC

[11:09:31] @ mlu yup, and this is probably the textbook example of it

[11:10:02] @ mlu it's only gonna get more interesting from here

[11:10:29] @ mlu not too sure actually

[11:10:52] @ mlu but even if it wasn't opus 6.7, seeing how powerful these models are, you probably don't need 6.7 for everything

[11:11:24] @ mlu all the LLM really has to do is analyze the code in detail and pick out the leaks

[11:11:38] @ mlu in fact, I'd argue that's the prime function of an LLM

[11:12:25] @ mlu it's really good at churning through the gruntwork, even if imperfectly -- but throw enough at it, and boom, there's your results

[11:13:36] @ mlu to keep me fed

[11:13:54] @ mlu or at least, provide conditions that allow me to easily keep myself fed

[11:16:38] @ mlu is it just me, or is that image on the dirtyfrag POC really cute and funny?

[17:55:04] @ mlu End3r: good morning :)

[18:06:04] @ mlu an anti-dog :)

[18:06:43] @ mlu hehe, had to google up where Lynn Haven was

[18:07:47] @ mlu past the edge of south Georgia :P

[18:08:49] @ mlu glitchy: hello, I'm from San Francisco -- can you explain where that is?

[18:10:00] @ mlu or good at pretending to be ;)

[18:11:07] @ mlu thanks: anything in particular I should be aware of?

[18:12:41] @ mlu cool

[18:13:45] @ mlu lool

[18:15:17] @ mlu mmmm $peyote

[18:16:56] @ mlu tehehehe

[18:22:01] @ mlu $w San Fransokyo

[18:22:23] @ mlu mmm boiling

[18:23:24] @ mlu well, not quite, lool, but it is close to as warm as it gets here

[18:23:30] @ mlu we're colder than Alaska during the summer

[18:23:38] @ mlu hehe "summer" loool

[18:24:15] @ mlu there's an economy of selling overpriced sweaters to tourists who think it's ever appropriate to wear shorts and t-shirts here

[18:24:58] @ mlu yup -- because this is as warm as it gets, outside of the occasional heat waves

[18:25:40] @ mlu the heat waves are 80-85degF btw

[18:26:10] @ mlu it is importnat to note that most residences here don't have AC

[18:26:50] @ mlu mmm, lots of changed

[18:27:05] @ mlu there's like an entirely new section of the skyline ever since I moved here in 2013

[18:28:50] @ mlu you from there / lived there a long time?

[18:29:09] @ mlu I think I may have driven past there during a few road trips as a kid

[18:31:26] @ mlu :(

[18:31:56] @ mlu people being people

[18:33:00] @ mlu loool

[18:33:48] @ mlu neat

[18:37:09] @ mlu hmm, how to keep it boring :D

[18:40:32] @ mlu general_kornwallace: how is it?

[18:42:29] @ mlu hmm

[18:42:46] @ mlu uh, installed your graphics drivers?

[18:43:11] @ mlu surprising how well vesafb works

[18:43:33] @ mlu yes, but it's still very important!

[18:43:52] @ mlu 2D acceleration is a critical speedup

[18:44:21] @ mlu once oyu learn exactly what the GPU does and how inefficient it is to even clear a screen via CPU -- it's scary how big the difference is

[18:44:54] @ mlu even if all the graphics driver does is support a bit block transfer (and not the other basics such as clear screen, draw lines, etc.), it's still a 3x speedup

[18:45:40] @ mlu namely: you don't waste cycles calculating memory addresses for every pixel

[18:45:57] @ mlu being able to say: here's a block of pixels, draw it

[18:46:38] @ mlu evne if oyu run nvidia, at least install the open source graphics drivers -- much better to have some basics

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