Closed Bug 1401515 Opened 2 years ago Closed 2 years ago

Fix "member call on null pointer of type" errors from UBSan

Categories

(Core :: JavaScript Engine, defect, P3)

defect

Tracking

()

RESOLVED FIXED
mozilla58
Tracking Status
firefox57 --- wontfix
firefox58 --- fixed

People

(Reporter: anba, Assigned: anba)

References

(Blocks 2 open bugs)

Details

Attachments

(1 file)

No description provided.
Attached patch bug1401515.patchSplinter Review
The |PropertyName* n| argument can be a null pointer, so let's just move the assertion after the test that |n| is not a null pointer. 

The other remaining member access on null pointer error when running jstests/jit-tests with UBSan was in JSScript::sizeOfTypeScript, so I folded that fix into this patch as well.
Attachment #8910235 - Flags: review?(luke)
Comment on attachment 8910235 [details] [diff] [review]
bug1401515.patch

Review of attachment 8910235 [details] [diff] [review]:
-----------------------------------------------------------------

Thanks!
Attachment #8910235 - Flags: review?(luke) → review+
Priority: -- → P3
Pushed by ryanvm@gmail.com:
https://hg.mozilla.org/integration/mozilla-inbound/rev/02a2f71d54a1
Avoid accessing members on null pointers. r=luke
Keywords: checkin-needed
https://hg.mozilla.org/mozilla-central/rev/02a2f71d54a1
Status: ASSIGNED → RESOLVED
Closed: 2 years ago
Resolution: --- → FIXED
Target Milestone: --- → mozilla58
We can probably let this rides the trains.
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