1286413 - Seccomp sandbox violation: sys_fchown32 called in content process of Firefox desktop

Status: RESOLVED FIXED

(Core :: Security: Process Sandboxing, defect)

Description

[Julian Hector [:tedd] [:jhector]]

Crash reports show that sys_fchown32 is called in the content process:

https://crash-stats.mozilla.com/search/?product=Firefox&reason=~SIGSYS&address=0xcf&_sort=-date&_facets=cpu_arch&_facets=address&_columns=date&_columns=signature&_columns=product&_columns=version&_columns=build_id&_columns=platform#crash-reports

Comment 1

[Julian Hector [:tedd] [:jhector]]

Attachment: Add proper macro for fchown. r=gcp

We already had sys_fchown whitelisted, this just properly covers the case for all variants on 32 bit as well as 64 bit.

Try push for build: https://treeherder.mozilla.org/#/jobs?repo=try&revision=150fcf52afbd

Comment 2

[Julian Hector [:tedd] [:jhector]]

Attachment: Add CASES_FOR_fchown and use it. r=gcp

Fixed the bug number in the patch.

Carry over r+ from :gcp.

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/mozilla-inbound/rev/9e2b738c7966
Add CASES_FOR_fchown and use it. r=gcp

Comment 4

[Carsten Book [:Tomcat]]

https://hg.mozilla.org/mozilla-central/rev/9e2b738c7966