[LinAGKar]

So basically to summarize, Google embargoes security patches for four months so OEMs can push out updates more slowly. And if those patches were immediately added to an open source project like GrapheneOS, attackers would gain info on the vulnerabilities before OEMs provide updates (the GrapheneOS project can see the patches, but they can't ship them). But a lot of patches end up being leaked anyway, so the delay ends up being pointless.

[lima]

The stupidest part is that, according to the thread, OEMs are allowed to provide binary only patches before the embargo ends, making the whole thing nonsensical since it's trivial to figure out the vulnerabilities from the binaries.

Fun fact: Google actually owns the most commonly used tool, BinDiff ;)

[nroets]

Unless the OEMs bundle numerous changes with the security patch(es).

(I'm not saying it happens. I just theorise how the policy could have been envisaged)

[tester89]

How does this work legally? If Android AOSP is open-source, once one OEM updates, surely the owner gets the legal right to request sources. IIRC the maximum delay is 30 days.

[bri3d]

Almost all of AOSP is under the Apache or BSD licenses, not the GPL. Very few GPL components remain (the kernel being the large and obvious one).

So, yes, making a GPL request will work for the very few components still under GPL, if a vendor releases a binary patch. But for most things outside of the kernel, patch diffing comes back into play, just like on every closed-source OS.

[immibis]

Have you ever tried requesting the source code for your phone?

They'll either ignore you, or give you something that is obviously not the source code (e.g. huge missing sections; often they'll only produce kernel code and not even a way to compile it). Law be damned. They don't follow it and nobody is forcing them to

[Hizonner]

Fuck, and I cannot emphasize this enough, the OEMs.

I am so sick of security being compromised so stupid, lazy people don't have to do their jobs efficiently. Not like this is even unusual.

[microtonal]

I don't think it is laziness per se. It's a combination of having far too many models (just look at Samsung's line-up, more than ten models per year if we don't count all the F and W variants), using many different SoCs from different vendors (just taking Samsung again as an example, using Qualcomm Snapdragon, Samsung Exynos, Mediatek Helio, Mediatek Dimensity, sometimes even a different chipset for the same phone model per region), each model supported for multiple years now on a monthly or quarterly update schedule (Samsung: recent A5x, Sxx, Sxx FE, Z Flip x, Z Flip 7 FE, Z fold x, Xcover x, etc. are on a monthly schedule). This across a multitude of kernel versions, AOSP versions (for older phones), OneUI versions (for phones that haven't been updated yet to the latest OneUI).

The must have literally over tens of different models to roll out security updates for, with many different SoCs and software versions to target.

And compared to other Android vendors, Samsung is actually pretty fast with updates.

It's true that other manufacturers have smaller line-ups, but they also tend to be smaller companies.

Compare that with Apple: every yearly phone uses the same SoC, only with variations in simpler things like CPU/GPU core counts.

[Zigurd]

Welcome to Android. It started out a bit undercooked and Google relied on OEMs to make finished polished products. Then the reality that OEMs suck at software hit them in the face. They spent years acquiring more control of their platform while trying not to piss off Samsung.

[egorfine]

> the delay ends up being pointless

Why though? It is pointless from the engineering and security standpoints, but for Google this may serve their goals very well.