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src: fix null deref in AllocatedBuffer::clear#32893

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fowles wants to merge 1 commit intonodejs:v12.xfrom
fowles:v12.x
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src: fix null deref in AllocatedBuffer::clear#32893
fowles wants to merge 1 commit intonodejs:v12.xfrom
fowles:v12.x

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@fowles
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@fowles fowles commented Apr 16, 2020

An empty buffer can have a null environment. Previously, we were
getting away with with this, but -fsanitize=null in clang caught it.

Cherry-pick of #32892 to
v12.x branch.

Ref: #32892

Checklist
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • commit message follows [commit guidelines]

@fowles
src: fix null deref in AllocatedBuffer::clear
41fe422 
An empty buffer can have a null environment.  Previously, we were
getting away with with this, but -fsanitize=null in clang caught it.
@nodejs-github-bot nodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. v12.x labels Apr 16, 2020
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fowles commented Apr 16, 2020

@soldair FYI

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himself65 commented Apr 17, 2020

I think you shouldn't pr to v12 branch, only master branch is ok

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addaleax commented Apr 17, 2020

Yes, unless the change only applies to v12.x, PRs go into master first. Unless there is a reason not to, they will be backported to LTS release lines, too. I’ll close this, as #32892 already takes care of everything here.

@addaleax addaleax closed this Apr 17, 2020
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@fowles @himself65 @addaleax @nodejs-github-bot