1411115 - F_SETLK fcntl used by Nvidia GL drivers and sometimes fontconfig

Status: RESOLVED FIXED

(Core :: Security: Process Sandboxing, defect, P1)

Description

[Paul Bone [:pbone]]

This bug was filed from the Socorro interface and is 
report bp-977d65d7-a4c4-40b9-937b-328e00171023.
=============================================================

I'm using Linux Mint on a x86_64 system. I have NVidia graphics.

I'm noticing a crash in nightly whenever I open facebook.com or reddit.com.  The tab crashes everytime, without fail.  The crash reports seem to come from a thread executing within libc-2.23.so/libnvidia-glcore.so.375.66 updating my nvidia drivers didn't stop the crash.

This happens for multiple versions of nightly for a few days now.  It happens on my main profile but not a new "test" profile with the same plugins installed.

It does not happen on my laptop (without NVidia graphics) although the laptop also has a different profile.

How can I narrow down the differences between the main profile and the new test profile further.  Other than addons?  Where are good places to look?

Thanks.

Comment 1

[Paul Bone [:pbone]]

Beta and release are unaffected.

Comment 2

[Paul Bone [:pbone]]

Hrm, seems to have resolved itself.  All I really did was close and open the browser a bunch of times while figuring out which versions it affected.

Comment 3

[Jed Davis [:jld] ⟨⏰|UTC-8⟩ ⟦he/him⟧]

This is a regression caused by bug 1328896, and it has a few other signatures.  (I don't entirely understand the fontconfig -> libpthread one yet.)

Comment 4

[Jed Davis [:jld] ⟨⏰|UTC-8⟩ ⟦he/him⟧]

Attachment: Bug 1411115 - Allow F_SETLK fcntl in sandboxed content processes.

Review commit: https://reviewboard.mozilla.org/r/194236/diff/#index_header
See other reviews: https://reviewboard.mozilla.org/r/194236/

Comment 5

[Gian-Carlo Pascutto [:gcp]]

Comment on attachment 8923034 [details]
Bug 1411115 - Allow F_SETLK fcntl in sandboxed content processes.

https://reviewboard.mozilla.org/r/194236/#review199632

Comment 6

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/d1e920ac2d7c
Allow F_SETLK fcntl in sandboxed content processes. r=gcp

Comment 7

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

https://hg.mozilla.org/mozilla-central/rev/d1e920ac2d7c

Comment 8

[Paul Bone [:pbone]]

I can confirm that nightly is no-longer crashing due to this bug being fixed.  Thank you.