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tls: do not leak WriteWrap objects #1090

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@indutny indutny commented Mar 7, 2015

Kill WriteWrap instances that are allocated in tls_wrap.cc internally.

Fix: #1075

cc @iojs/crypto @bnoordhuis

This should fix it once and forever :) (hopefully)

Kill WriteWrap instances that are allocated in `tls_wrap.cc` internally.

Fix: nodejs#1075
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indutny commented Mar 7, 2015

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Odd, looks like there were a lot of git fetch failures..

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indutny commented Mar 7, 2015

Yeah :(

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rvagg commented Mar 7, 2015

Weird. Can someone try again and double check that the branch actually exists?

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indutny commented Mar 7, 2015

@rvagg:

/tmp $ git clone --depth=1 git://github.com/indutny/io.js -b fix/paypal-leak-for-sure
Cloning into 'io.js'...
remote: Counting objects: 12288, done.
remote: Compressing objects: 100% (10161/10161), done.
remote: Total 12288 (delta 3046), reused 7068 (delta 1593), pack-reused 0
Receiving objects: 100% (12288/12288), 30.36 MiB | 2.65 MiB/s, done.
Resolving deltas: 100% (3046/3046), done.
Checking connectivity... done.
/tmp $

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It probably gets confused by the slash in the branch name.

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indutny commented Mar 7, 2015

@bnoordhuis I always do them in branches, seems to be very unlikely

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rvagg commented Mar 7, 2015

I did change the way it grabs branches recently so the slash thing is possible. Perhaps try without and see.

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rvagg commented Mar 7, 2015

I take that back .. I only changed it on the nightly and release jobs, the pr-multi one just checks out $branch

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rvagg commented Mar 7, 2015

cleaned out the existing workspaces on most of the build machines and it seems happy now https://jenkins-iojs.nodesource.com/job/iojs+any-pr+multi/260/

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indutny commented Mar 7, 2015

@rvagg : seems to be mostly green, except aborted ubuntu1410 build.

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indutny commented Mar 7, 2015

LGTY @bnoordhuis ?

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rvagg commented Mar 7, 2015

14.10 slave back online and running

@@ -314,6 +315,8 @@ void TLSWrap::EncOut() {

void TLSWrap::EncOutCb(WriteWrap* req_wrap, int status) {
TLSWrap* wrap = req_wrap->wrap()->Cast<TLSWrap>();
req_wrap->~WriteWrap();
delete[] reinterpret_cast<char*>(req_wrap);
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I would suggest moving the placement new and delete logic into New and Dispose methods, like I did just now with FSReqWrap in src/node_file.cc. Having the same logic repeated five times throughout the file is not good software engineering.

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@@ -308,11 +303,9 @@ int StreamBase::WriteString(const FunctionCallbackInfo<Value>& args) {
CHECK_EQ(count, 1);
}

storage = new char[sizeof(WriteWrap) + storage_size + 15];
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@bnoordhuis do you think this is still relevant?

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If not - we may want to skip this 15 byte thing above too.

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I think it is no relevant anymore. PTAL at follow-up commit.

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indutny commented Mar 7, 2015

@bnoordhuis and one more patch for your fun :)

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LGTM, the only thing I would perhaps change is the use of int instead of size_t.

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indutny commented Mar 7, 2015

Thanks, will do. One more build, just to be sure: https://jenkins-iojs.nodesource.com/job/iojs+any-pr+multi/261/

indutny added a commit that referenced this pull request Mar 7, 2015
Kill WriteWrap instances that are allocated in `tls_wrap.cc` internally.

Fix: #1075
PR-URL: #1090
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
indutny added a commit that referenced this pull request Mar 7, 2015
Encapsulate allocation/disposal of `WriteWrap` instances into the
`WriteWrap` class itself.

PR-URL: #1090
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
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indutny commented Mar 7, 2015

Landed in 7f4c95e, fe36076 .

@indutny indutny closed this Mar 7, 2015
@indutny indutny deleted the fix/paypal-leak-for-sure branch March 7, 2015 23:51
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indutny commented Mar 7, 2015

Thank you, everyone!

@rvagg rvagg mentioned this pull request Mar 8, 2015
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4 participants