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worker: fix nullptr deref after MessagePort deser failure #25076

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worker: fix nullptr deref after MessagePort deser failure #25076

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addaleax
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This would previously always have crashed when deserializing
a MessagePort fails, because there was always at least one
nullptr entry in the vector.

(Caught by @gireeshpunathil in #25061)

Checklist
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • tests and/or benchmarks are included
  • commit message follows commit guidelines

@addaleax
worker: fix nullptr deref after MessagePort deser failure
d0476f4 
This would previously always have crashed when deserializing
a `MessagePort` fails, because there was always at least one
`nullptr` entry in the vector.
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@addaleax build started: https://ci.nodejs.org/blue/organizations/jenkins/node-test-pull-request-lite-pipeline/detail/node-test-pull-request-lite-pipeline/1970/pipeline

@nodejs-github-bot nodejs-github-bot added the c++ Issues and PRs that require attention from people who are familiar with C++. label Dec 16, 2018
@addaleax addaleax added the worker Issues and PRs related to Worker support. label Dec 16, 2018
richardlau
richardlau reviewed Dec 16, 2018
View reviewed changes
src/node_messaging.cc
@@ -90,7 +90,8 @@ MaybeLocal<Value> Message::Deserialize(Environment* env,
if (ports[i] == nullptr) {
for (MessagePort* port : ports) {
// This will eventually release the MessagePort object itself.
port->Close();
if (port != nullptr)
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Does the enclosing for loop need to loop through all ports or just up to (but not including since ports[i] == nullptr) i?

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@richardlau Yes, I think that should work too … should we optimize here? This effectively only occurs during .terminate(), and I don’t think it’s a typical case to pass more than one MessagePort per Message anyway?

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¯\_(ツ)_/¯ I'll leave it to your judgement.

This was referenced Dec 17, 2018
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Trott commented Dec 17, 2018 •
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CI: https://ci.nodejs.org/job/node-test-pull-request/19625/ ✔️

@Trott Trott added the author ready PRs that have at least one approval, no pending requests for changes, and a CI started. label Dec 17, 2018
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danbev commented Dec 19, 2018

Landed in e1ab457.

@danbev danbev closed this Dec 19, 2018
danbev pushed a commit that referenced this pull request Dec 19, 2018
@addaleax @danbev
worker: fix nullptr deref after MessagePort deser failure
e1ab457 
This would previously always have crashed when deserializing
a `MessagePort` fails, because there was always at least one
`nullptr` entry in the vector.

PR-URL: #25076
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
@joyeecheung joyeecheung mentioned this pull request Dec 19, 2018
Closed
@addaleax addaleax deleted the messageport-deserialize-nullptr branch December 19, 2018 16:25
MylesBorins pushed a commit that referenced this pull request Dec 25, 2018
@addaleax @MylesBorins
worker: fix nullptr deref after MessagePort deser failure
4f28da8 
This would previously always have crashed when deserializing
a `MessagePort` fails, because there was always at least one
`nullptr` entry in the vector.

PR-URL: #25076
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
@MylesBorins MylesBorins mentioned this pull request Dec 25, 2018
Merged
refack pushed a commit to refack/node that referenced this pull request Jan 14, 2019
@refack
worker: fix nullptr deref after MessagePort deser failure
2fdb78c 
This would previously always have crashed when deserializing
a `MessagePort` fails, because there was always at least one
`nullptr` entry in the vector.

PR-URL: nodejs#25076
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
BethGriggs pushed a commit that referenced this pull request Apr 17, 2019
@addaleax @BethGriggs
worker: fix nullptr deref after MessagePort deser failure
a7e1daf 
This would previously always have crashed when deserializing
a `MessagePort` fails, because there was always at least one
`nullptr` entry in the vector.

PR-URL: #25076
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
BethGriggs pushed a commit that referenced this pull request Apr 28, 2019
@addaleax @BethGriggs
worker: fix nullptr deref after MessagePort deser failure
d6b7caf 
This would previously always have crashed when deserializing
a `MessagePort` fails, because there was always at least one
`nullptr` entry in the vector.

PR-URL: #25076
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
@BethGriggs BethGriggs mentioned this pull request May 1, 2019
Merged
BethGriggs pushed a commit that referenced this pull request Jul 2, 2019
@addaleax @BethGriggs
worker: fix nullptr deref after MessagePort deser failure
6d39161 
This would previously always have crashed when deserializing
a `MessagePort` fails, because there was always at least one
`nullptr` entry in the vector.

PR-URL: #25076
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
BethGriggs pushed a commit that referenced this pull request Jul 17, 2019
@addaleax @BethGriggs
worker: fix nullptr deref after MessagePort deser failure
14090b5 
This would previously always have crashed when deserializing
a `MessagePort` fails, because there was always at least one
`nullptr` entry in the vector.

PR-URL: #25076
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
BethGriggs added a commit that referenced this pull request Jul 17, 2019
@BethGriggs
2019-05-28, Version 10.16.1 'Dubnium' (LTS)
4d0e87c 
Notable changes:

- **stream**: do not unconditionally call `\_read()` on `resume()` (Anna Henningsen) [#26965](#26965)
- **worker**: fix nullptr deref after MessagePort deser failure (Anna Henningsen) [#25076](#25076)
@BethGriggs BethGriggs mentioned this pull request Jul 17, 2019
Merged
BethGriggs added a commit that referenced this pull request Jul 26, 2019
@BethGriggs
2019-07-30, Version 10.16.1 'Dubnium' (LTS)
2d18f84 
Notable changes:

- **deps**: upgrade openssl sources to 1.1.1c (Sam Roberts) [#28212](#28212)
- **stream**: do not unconditionally call `\_read()` on `resume()` (Anna Henningsen) [#26965](#26965)
- **worker**: fix nullptr deref after MessagePort deser failure (Anna Henningsen) [#25076](#25076)

PR-URL: #28731
BethGriggs added a commit that referenced this pull request Jul 30, 2019
@BethGriggs
2019-07-30, Version 10.16.1 'Dubnium' (LTS)
fe32fe8 
Notable changes:

- **deps**: upgrade openssl sources to 1.1.1c (Sam Roberts) [#28212](#28212)
- **stream**: do not unconditionally call `\_read()` on `resume()` (Anna Henningsen) [#26965](#26965)
- **worker**: fix nullptr deref after MessagePort deser failure (Anna Henningsen) [#25076](#25076)

PR-URL: #28731
BethGriggs added a commit that referenced this pull request Jul 31, 2019
@BethGriggs
2019-07-31, Version 10.16.1 'Dubnium' (LTS)
a395299 
Notable changes:

- **deps**: upgrade openssl sources to 1.1.1c (Sam Roberts) [#28212](#28212)
- **stream**: do not unconditionally call `\_read()` on `resume()` (Anna Henningsen) [#26965](#26965)
- **worker**: fix nullptr deref after MessagePort deser failure (Anna Henningsen) [#25076](#25076)

PR-URL: #28731
BethGriggs added a commit that referenced this pull request Jul 31, 2019
@BethGriggs
2019-07-31, Version 10.16.1 'Dubnium' (LTS)
9d37013 
Notable changes:

- **deps**: upgrade openssl sources to 1.1.1c (Sam Roberts) [#28212](#28212)
- **stream**: do not unconditionally call `\_read()` on `resume()` (Anna Henningsen) [#26965](#26965)
- **worker**: fix nullptr deref after MessagePort deser failure (Anna Henningsen) [#25076](#25076)

PR-URL: #28731
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@gireeshpunathil gireeshpunathil gireeshpunathil approved these changes

@richardlau richardlau richardlau approved these changes

@jasnell jasnell jasnell approved these changes

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@addaleax @nodejs-github-bot @Trott @danbev @jasnell @richardlau @gireeshpunathil