The attached crash information was submitted via the ASan Nightly Reporter on mozilla-central-asan-nightly revision 63.0a1-20180721100146-https://hg.mozilla.org/mozilla-central/rev/9daa53881b7ae80bf6b093dac5d7744cf7fd18b1. For detailed crash information, see attachment. Marking s-s because this could be a security problem, though the actual problem could be in Mesa/libglapi.

This is likely fairly safe, though probably bone-headed. I can take a closer look tomorrow.

...Monday it is!

I can't repro. It feels like this might be: https://bugs.freedesktop.org/show_bug.cgi?id=81992 Fixed by: https://cgit.freedesktop.org/mesa/mesa/commit/?id=1110113a7f0b6f9b21dd26dee8e95a021041c71c Do we have an about:support or driver version info for affected systems?

Forwarding needinfo to the original reporter. Can you provide information as requested in comment 5? Thanks!

Output of glxinfo

If you update Mesa, does this error go away? 10.5+ should be fixed.

I could reproduce the error reliably. I will upgrade Mesa and try again.

Also, does this cause any errors outside of the ASAN assert?

I got the "Your tab just crashed" error message. After upgrading Mesa to version 11.2.0, I can no longer reproduce the crash.

Ok, great! I'm hoping we can open this bug and expect ASAN build users to update Mesa if they run into this. Alternatively, is there a whitelist we can add this issue to? :decoder?

There is unfortunately no whitelist, but I can filter for this issue on the server that receives the reports so reports from users that haven't upgraded won't hurt.

NB: Mesa 10.5 was released in early 2015.

Since this was a bug in Mesa and not in Firefox, changing the status to INVALID.

decoder would prefer to leave sec-vector issues as FIXED.