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dns: fix TTL value for AAAA replies to resolveAny() #25187

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dns: fix TTL value for AAAA replies to resolveAny() #25187

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addaleax
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We were previously reading from the wrong offset, namely
the one into the final results array, not the one for the
AAAA results itself, which could have lead to reading
uninitialized or out-of-bounds data.

Also, adjust the test accordingly; TTL values are not
modified by c-ares, but are only exposed for a subset
of all DNS record types.

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

@addaleax
dns: fix TTL value for AAAA replies to resolveAny()
78d3ccf 
We were previously reading from the wrong offset, namely
the one into the final results array, not the one for the
AAAA results itself, which could have lead to reading
uninitialized or out-of-bounds data.

Also, adjust the test accordingly; TTL values are not
modified by c-ares, but are only exposed for a subset
of all DNS record types.
@addaleax addaleax requested a review from XadillaX December 22, 2018 20:42
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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/2043/pipeline

@nodejs-github-bot nodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. cares Issues and PRs related to the c-ares dependency or the cares_wrap binding. labels Dec 22, 2018
@addaleax addaleax added the dns Issues and PRs related to the dns subsystem. label Dec 22, 2018
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CI: https://ci.nodejs.org/job/node-test-pull-request/19754/

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Trott commented Dec 23, 2018 •
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Resume Build CI: https://ci.nodejs.org/job/node-test-pull-request/19757/ ✔️

@Trott Trott added the author ready PRs that have at least one approval, no pending requests for changes, and a CI started. label Dec 23, 2018
XadillaX
XadillaX approved these changes Dec 24, 2018
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Wow! Well done!

bnoordhuis
bnoordhuis approved these changes Dec 24, 2018
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LGTM, good catch.

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Landed in d93f93a

@addaleax addaleax closed this Dec 26, 2018
@addaleax addaleax deleted the dns-fix branch December 26, 2018 13:45
addaleax added a commit that referenced this pull request Dec 26, 2018
@addaleax
dns: fix TTL value for AAAA replies to resolveAny()
d93f93a 
We were previously reading from the wrong offset, namely
the one into the final results array, not the one for the
AAAA results itself, which could have lead to reading
uninitialized or out-of-bounds data.

Also, adjust the test accordingly; TTL values are not
modified by c-ares, but are only exposed for a subset
of all DNS record types.

PR-URL: #25187
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Khaidi Chu <i@2333.moe>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
targos pushed a commit that referenced this pull request Jan 1, 2019
@addaleax @targos
dns: fix TTL value for AAAA replies to resolveAny()
5b4fab1 
We were previously reading from the wrong offset, namely
the one into the final results array, not the one for the
AAAA results itself, which could have lead to reading
uninitialized or out-of-bounds data.

Also, adjust the test accordingly; TTL values are not
modified by c-ares, but are only exposed for a subset
of all DNS record types.

PR-URL: #25187
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Khaidi Chu <i@2333.moe>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
refack pushed a commit to refack/node that referenced this pull request Jan 14, 2019
@refack
dns: fix TTL value for AAAA replies to resolveAny()
3611f13 
We were previously reading from the wrong offset, namely
the one into the final results array, not the one for the
AAAA results itself, which could have lead to reading
uninitialized or out-of-bounds data.

Also, adjust the test accordingly; TTL values are not
modified by c-ares, but are only exposed for a subset
of all DNS record types.

PR-URL: nodejs#25187
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Khaidi Chu <i@2333.moe>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
@BridgeAR BridgeAR mentioned this pull request Jan 16, 2019
Merged
@MylesBorins MylesBorins mentioned this pull request Jan 24, 2019
Merged
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Wow! Well done!

但觉厉 lol

BethGriggs pushed a commit that referenced this pull request Apr 17, 2019
@addaleax @BethGriggs
dns: fix TTL value for AAAA replies to resolveAny()
6ef988a 
We were previously reading from the wrong offset, namely
the one into the final results array, not the one for the
AAAA results itself, which could have lead to reading
uninitialized or out-of-bounds data.

Also, adjust the test accordingly; TTL values are not
modified by c-ares, but are only exposed for a subset
of all DNS record types.

PR-URL: #25187
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Khaidi Chu <i@2333.moe>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
BethGriggs pushed a commit that referenced this pull request Apr 28, 2019
@addaleax @BethGriggs
dns: fix TTL value for AAAA replies to resolveAny()
5cc39b8 
We were previously reading from the wrong offset, namely
the one into the final results array, not the one for the
AAAA results itself, which could have lead to reading
uninitialized or out-of-bounds data.

Also, adjust the test accordingly; TTL values are not
modified by c-ares, but are only exposed for a subset
of all DNS record types.

PR-URL: #25187
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Khaidi Chu <i@2333.moe>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
@BethGriggs BethGriggs mentioned this pull request May 1, 2019
Merged
BethGriggs pushed a commit that referenced this pull request May 10, 2019
@addaleax @BethGriggs
dns: fix TTL value for AAAA replies to resolveAny()
48bdb19 
We were previously reading from the wrong offset, namely
the one into the final results array, not the one for the
AAAA results itself, which could have lead to reading
uninitialized or out-of-bounds data.

Also, adjust the test accordingly; TTL values are not
modified by c-ares, but are only exposed for a subset
of all DNS record types.

PR-URL: #25187
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Khaidi Chu <i@2333.moe>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
MylesBorins pushed a commit that referenced this pull request May 16, 2019
@addaleax @MylesBorins
dns: fix TTL value for AAAA replies to resolveAny()
4fcfa5a 
We were previously reading from the wrong offset, namely
the one into the final results array, not the one for the
AAAA results itself, which could have lead to reading
uninitialized or out-of-bounds data.

Also, adjust the test accordingly; TTL values are not
modified by c-ares, but are only exposed for a subset
of all DNS record types.

PR-URL: #25187
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Khaidi Chu <i@2333.moe>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
This was referenced May 29, 2019
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@BridgeAR BridgeAR BridgeAR approved these changes

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@bnoordhuis bnoordhuis bnoordhuis approved these changes

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@addaleax @nodejs-github-bot @Trott @zzz6519003 @bnoordhuis @jasnell @lpinca @XadillaX @BridgeAR @BethGriggs