Closed
Bug 1285771
Opened 8 years ago
Closed 8 years ago
Seccomp sandbox violation: sys_mlock called in content process of Firefox desktop
Categories
(Core :: Security: Process Sandboxing, defect)
Core
Security: Process Sandboxing
Tracking
()
RESOLVED
FIXED
mozilla50
| Tracking | Status | |
|---|---|---|
| firefox50 | --- | fixed |
People
(Reporter: tedd, Assigned: tedd)
References
Details
Crash Data
Attachments
(1 file)
|
782 bytes,
patch
|
gcp
:
review+
|
Details | Diff | Splinter Review |
Crash reports show that sys_mlock is called from the content process: https://crash-stats.mozilla.com/search/?product=Firefox&reason=~SIGSYS&address=0x95&_sort=-date&_facets=signature&_columns=date&_columns=signature&_columns=product&_columns=version&_columns=build_id&_columns=platform#crash-reports
|
Assignee | |
Comment 1•8 years ago
|
||
sys_mlock doesn't look like a dangerous system call, it allows to lock a memory range into RAM preventing it from being swapped out (probably used by graphics). I don't see why we shouldn't whitelist it. Try push for build: https://treeherder.mozilla.org/#/jobs?repo=try&revision=6a26abbddbaf
Assignee: nobody → julian.r.hector
Attachment #8769776 -
Flags: review?(gpascutto)
|
||
Comment 2•8 years ago
|
||
Stack is a bit complicated but underlying caller is most likely the proprietary AMD gfx driver.
|
|
||
Updated•8 years ago
|
Attachment #8769776 -
Flags: review?(gpascutto) → review+
|
|
Assignee | |
Updated•8 years ago
|
Keywords: checkin-needed
Pushed by cbook@mozilla.com: https://hg.mozilla.org/integration/mozilla-inbound/rev/52763f9aca69 Add sys_mlock to seccomp whitelist. r=gcp
Keywords: checkin-needed
|
||
Comment 4•8 years ago
|
||
| bugherder | ||
https://hg.mozilla.org/mozilla-central/rev/52763f9aca69
Status: NEW → RESOLVED
Closed: 8 years ago
status-firefox50:
--- → fixed
Resolution: --- → FIXED
Target Milestone: --- → mozilla50
|
||
Updated•8 years ago
|
Crash Signature: [@ libc-2.20.so@0xf2027 ] [@ libc-2.19.so@0xe22c7 ] [@ libc-2.23.so@0xe3627 ]
You need to log in
before you can comment on or make changes to this bug.
Description
•