RFR: 8252997: Null-proofing for linker_md.c

Serguei Spitsyn sspitsyn at openjdk.java.net
Fri Sep 18 21:59:57 UTC 2020


On Fri, 18 Sep 2020 11:09:19 GMT, Adam Farley <afarley at openjdk.org> wrote:

> In the platform-specific implementations of linker_md.c, we see the dll_build_name methods begin with a call to
> jvmtiAllocate.
> We then appear to rush ahead and try to use that variable without checking for a null.
> 
> I propose moving the null check to the point *before* we try to use that variable, to avoid any possible SEGV.
> 
> Bug link: https://bugs.openjdk.java.net/browse/JDK-8252997

Marked as reviewed by sspitsyn (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/246


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