Bug 434614 – sys-devel/llvm-3.1-r2: Exception table generation does not retry on buffer overflow

• Status: RESOLVED UPSTREAM
• Product: Gentoo Linux

[Description wbrana 2012-09-10 17:19:14 UTC]

JITEmitter::finishFunction()  calls EmitDwarfTable() to generate the exception
tables for the function, but doesn't check for a buffer overflow afterwards. 
As a result of this, we can end up with a partial exception record for a
function which can result in a seg-fault during exception handling.
upstream bug: http://llvm.org/bugs/show_bug.cgi?id=13678

[Comment 1 Bernard Cafarelli 2012-09-20 08:11:37 UTC]

Thanks for the report! Do you have a link to the llvm-dev mailing discussion? Or if feedback was positive, we can add it to our patchs

[Comment 2 wbrana 2012-09-20 08:30:25 UTC]

http://lists.cs.uiuc.edu/pipermail/llvmdev/2012-September/053233.html