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os: fix memory leak in userInfo() #23893

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addaleax
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This previously leaked memory in the ‘success’ case.

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

@nodejs-github-bot nodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. os Issues and PRs related to the os subsystem. labels Oct 26, 2018
This previously leaked memory in the ‘success’ case.
@addaleax
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src/node_os.cc Outdated
@@ -360,6 +360,7 @@ static void GetUserInfo(const FunctionCallbackInfo<Value>& args) {
}

const int err = uv_os_get_passwd(&pwd);
OnScopeLeave free_passwd([&]() { uv_os_free_passwd(&pwd); });
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is it safe to call it if uv_os_get_passwd returned an error?

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Yeah, I think you’re right, we shouldn’t do that. I’ve moved it below the conditional 👍

@danbev
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danbev commented Oct 31, 2018

Landed in d690a87.

@danbev danbev closed this Oct 31, 2018
danbev pushed a commit that referenced this pull request Oct 31, 2018
This previously leaked memory in the ‘success’ case.

PR-URL: #23893
Reviewed-By: Michaël Zasso <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Richard Lau <[email protected]>
Reviewed-By: James M Snell <[email protected]>
targos pushed a commit that referenced this pull request Nov 1, 2018
This previously leaked memory in the ‘success’ case.

PR-URL: #23893
Reviewed-By: Michaël Zasso <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Richard Lau <[email protected]>
Reviewed-By: James M Snell <[email protected]>
@MylesBorins
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Lands cleanly on 10 but not on 8

It would appear the leak actually doesn't exist on 8 so I'm marking as don't land

@addaleax addaleax deleted the os-mem-leak branch November 27, 2018 00:57
MylesBorins pushed a commit that referenced this pull request Nov 27, 2018
This previously leaked memory in the ‘success’ case.

PR-URL: #23893
Reviewed-By: Michaël Zasso <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Richard Lau <[email protected]>
Reviewed-By: James M Snell <[email protected]>
@codebytere codebytere mentioned this pull request Nov 27, 2018
rvagg pushed a commit that referenced this pull request Nov 28, 2018
This previously leaked memory in the ‘success’ case.

PR-URL: #23893
Reviewed-By: Michaël Zasso <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Richard Lau <[email protected]>
Reviewed-By: James M Snell <[email protected]>
MylesBorins pushed a commit that referenced this pull request Nov 29, 2018
This previously leaked memory in the ‘success’ case.

PR-URL: #23893
Reviewed-By: Michaël Zasso <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Richard Lau <[email protected]>
Reviewed-By: James M Snell <[email protected]>
@codebytere codebytere mentioned this pull request Nov 29, 2018
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8 participants