Open
Bug 1483938
Opened 7 years ago
Updated 3 years ago
Investigate a11y vtable stuff
Categories
(Firefox Build System :: General, defect)
Firefox Build System
General
Tracking
(Not tracked)
NEW
People
(Reporter: tjr, Unassigned)
References
(Blocks 1 open bug)
Details
Aaron mentioned that a11y does some vtable stuff that might trigger this as well. Current thinking is to use an existing vcall build I have locally to trigger the weird vtable stuff and then see if I see it in the vcall trap output (which looks like this):
> path/obj-x86_64-pc-linux-gnu/dist/include/mozilla/Bootstrap.h:84:7: runtime error: control flow integrity check for type 'mozilla::Bootstrap' failed during virtual call (vtable address 0x7fa9947bc520)
> 0x7fa9947bc520: note: invalid vtable
> 00 00 00 00 e0 e8 23 93 a9 7f 00 00 30 e9 23 93 a9 7f 00 00 90 e9 23 93 a9 7f 00 00 00 ea 23 93
> ^
> path/obj-x86_64-pc-linux-gnu/dist/include/mozilla/Bootstrap.h:84:7: note: check failed in path/obj-x86_64-pc-linux-gnu/dist/bin/firefox, vtable located in path/obj-x86_64-pc-linux-gnu/dist/bin/libxul.so
This bug is on file to avoid forgetting it, but this is very not-urgent right now.
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Updated•3 years ago
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Severity: normal → S3
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Description
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