Closed Bug 803498 Opened 12 years ago Closed 12 years ago

Graphite2 crash [@graphite2::Silf::readGraphite]

Categories

(Core :: Graphics, defect)

x86_64
macOS
defect
Not set
critical

Tracking

()

VERIFIED FIXED
mozilla19
Tracking Status
firefox17 --- disabled
firefox18 --- disabled
firefox19 + fixed
firefox-esr10 --- unaffected
firefox-esr17 --- unaffected

People

(Reporter: posidron, Assigned: jfkthame)

References

(Blocks 1 open bug)

Details

(Keywords: crash, sec-critical, testcase, Whiteboard: [adv-main19-])

Attachments

(3 files)

Attached file testcase
Table: b'Sill'
Number of values: 2
Offset:          8/0x000008	Value: ['ff', 'ff', 'ff', 'fe']
Offset:         14/0x00000e	Value: ['20', '00']
Table: b'Silf'
Number of values: 4
Offset:         15/0x00000f	Value: ['40', '00']
Offset:         18/0x000012	Value: ['00', '00', '00', '00']
Offset:         42/0x00002a	Value: ['7f', 'fe']
Offset:         60/0x00003c	Value: ['7f', 'fe']
Attached file callstack
Is this consistently reproducible for you, or is it unpredictable how long it may run before it reports a problem?
Never mind, confirmed that this is readily reproducible using a current ASAN build (from https://people.mozilla.com/~choller/firefox/asan/20121019-mozilla-central-macosx64-debug-0ff60bfb3442+asan.html) with graphite enabled in about:config.
Assignee: nobody → jfkthame
I think this will be fixed by the library update in bug 803347 - we should re-test once we have ASAN builds with that patch.
(In reply to Jonathan Kew (:jfkthame) from comment #4)
> I think this will be fixed by the library update in bug 803347 - we should
> re-test once we have ASAN builds with that patch.

Nope, did not fix this problem.
Drat. OK, thanks for checking; will follow up with the graphite team.
See upstream changelog at http://hg.palaso.org/graphitedev for details.
Attachment #676115 - Flags: review?(jdaggett)
This will be superseded by bug 805760, which updates us to a more recent upstream commit and has just landed on m-i.
Target Milestone: --- → mozilla19
Attachment #676115 - Flags: review?(jdaggett)
Fixed by bug 805760.
Status: NEW → RESOLVED
Closed: 12 years ago
Resolution: --- → FIXED
Status: RESOLVED → VERIFIED
How is this "disabled" for 18 but bug 803347 is not when they are both graphite2 crashes?
All graphite2-related bugs are "disabled" for current branches, in the sense that the feature is preffed off by default, so the code is only reachable if a user has explicitly turned it on through about:config.
That's good to know. That changes the measure of how we discuss this for advisories as a security issue.
Whiteboard: [adv-main19-]
Group: core-security
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