#openbsd

What this server has with the tag: posts by people here, and posts from elsewhere that reached it. There's more of it on mastodon.social, ruby.social.

Steven Rosenberg@passthejoe@ruby.social

I'm writing this from my new GNOME-running laptop. Everything works so well.

I can't remember if I ever ran before in OpenBSD. I might have done it briefly a number of years ago.

Given the touchpad issue in where my cursor was jumping all over the place, highlighting and deleting text at random, in OpenBSD touchpad tapping is off by default.

I turned it on with wsconsctl and am testing how well I can type with it.

So far it's a lot less sensitive (in a good way).

Julian Oliver@JulianOliver@mastodon.social

Tis the year for kernel vulns, or at least discovering very old ones. Here's an overview of an exploit, its mitigations, atop a 37yr old bug in

No information disclosure needed. It leans on deterministic kernel memory allocations, scoping therein for function pointers with shared mem attachments to fork until the counter wraps, overflowing to negative integer. Chained w separate out-of-bounds kernel writes, it earns local priv esc to root.

calif.io/research/big-fish

CalifBig Fish: Exploiting a 37-Year-Old Kernel Bug in OpenBSDBig fish. Small counter. Root shell.