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src: prevent crash in TTYWrap::Initialize #26832

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src: prevent crash in TTYWrap::Initialize #26832

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Hakerh400
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@Hakerh400 Hakerh400 commented Mar 21, 2019 •
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When console.log is called for the first time it initializes
TTYWrap object. However, if there is not enough space on the
V8 stack, creating function template fails and triggers
empty maybe local exception.

Fixes #26829

Checklist
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • tests and/or benchmarks are included
  • 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++. tty Issues and PRs related to the tty subsystem. labels Mar 21, 2019
@Hakerh400 Hakerh400 mentioned this pull request Mar 21, 2019
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bnoordhuis
bnoordhuis reviewed Mar 21, 2019
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BTW, Environment::SetMethod() and Environment::SetMethodNoSideEffect() also does ToLocalChecked() on the maybe returned by FunctionTemplate::GetFunction() and also does FromJust() on the Maybe returned by Object::Set(), I wonder why this only crashes in the non-heplers here.

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CI: https://ci.nodejs.org/job/node-test-pull-request/21822/ (though it's rather flaky now)

BridgeAR
BridgeAR approved these changes Mar 25, 2019
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@BridgeAR BridgeAR added the author ready PRs that have at least one approval, no pending requests for changes, and a CI started. label Mar 25, 2019
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bnoordhuis approved these changes Mar 28, 2019
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LGTM with a suggestion.

src/tty_wrap.cc Outdated Show resolved Hide resolved
@Hakerh400
src: prevent crash in TTYWrap::Initialize
9bb61ba 
When console.log is called for the first time it initializes
TTYWrap object. However, if there is not enough space on the
V8 stack, creating function template fails and triggers
empty maybe local exception.
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CI was failing due to flaky test-worker-prof and the last run timed out for some reason. The failure seems unrelated to this PR.

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CI: https://ci.nodejs.org/job/node-test-pull-request/22030/

BridgeAR pushed a commit to BridgeAR/node that referenced this pull request Apr 4, 2019
@Hakerh400 @BridgeAR
src: prevent crash in TTYWrap::Initialize
6fb32ac 
When console.log is called for the first time it initializes
TTYWrap object. However, if there is not enough space on the
V8 stack, creating function template fails and triggers
empty maybe local exception.

PR-URL: nodejs#26832
Reviewed-By: Ruben Bridgewater <[email protected]>
Reviewed-By: Joyee Cheung <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Ben Noordhuis <[email protected]>
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BridgeAR commented Apr 4, 2019

Landed in 6fb32ac 🎉

@BridgeAR BridgeAR closed this Apr 4, 2019
@Hakerh400 Hakerh400 deleted the tty branch April 4, 2019 17:15
BethGriggs pushed a commit that referenced this pull request Apr 9, 2019
@Hakerh400 @BethGriggs
src: prevent crash in TTYWrap::Initialize
755609c 
When console.log is called for the first time it initializes
TTYWrap object. However, if there is not enough space on the
V8 stack, creating function template fails and triggers
empty maybe local exception.

PR-URL: #26832
Reviewed-By: Ruben Bridgewater <[email protected]>
Reviewed-By: Joyee Cheung <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Ben Noordhuis <[email protected]>
Signed-off-by: Beth Griggs <[email protected]>
@BethGriggs BethGriggs mentioned this pull request Apr 9, 2019
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BethGriggs pushed a commit that referenced this pull request Apr 10, 2019
@Hakerh400 @BethGriggs
src: prevent crash in TTYWrap::Initialize
70d9f32 
When console.log is called for the first time it initializes
TTYWrap object. However, if there is not enough space on the
V8 stack, creating function template fails and triggers
empty maybe local exception.

PR-URL: #26832
Reviewed-By: Ruben Bridgewater <[email protected]>
Reviewed-By: Joyee Cheung <[email protected]>
Reviewed-By: Anna Henningsen <[email protected]>
Reviewed-By: Ben Noordhuis <[email protected]>
Signed-off-by: Beth Griggs <[email protected]>
@Hakerh400 Hakerh400 mentioned this pull request Apr 26, 2019
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@gireeshpunathil gireeshpunathil mentioned this pull request Jan 2, 2020
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@BridgeAR BridgeAR BridgeAR approved these changes

@joyeecheung joyeecheung joyeecheung approved these changes

@addaleax addaleax addaleax approved these changes

@bnoordhuis bnoordhuis bnoordhuis approved these changes

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