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[v8.x] tls,http2: handle writes after SSL destroy more gracefully #22924

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Backport of #18987 with only neighbouring-lines conflicts.

The test part was already backported in 8053474, and passes on v8.x even without the src/ changes; however, #22923 seems to be a related issue that exists on v8.x currently, so backporting the rest probably makes sense.

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

This might otherwise result in a hard crash when trying
to write to a socket after a sudden disconnect.

Note that the test here uses an aborted `h2load` run to create
the failing requests; That’s far from ideal, but it provides
a reasonably reliably reproduction at this point.

PR-URL: nodejs#18987
Fixes: nodejs#18973
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
@nodejs-github-bot nodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. tls Issues and PRs related to the tls subsystem. v8.x labels Sep 18, 2018
MylesBorins pushed a commit that referenced this pull request Sep 25, 2018
This might otherwise result in a hard crash when trying
to write to a socket after a sudden disconnect.

Note that the test here uses an aborted `h2load` run to create
the failing requests; That’s far from ideal, but it provides
a reasonably reliably reproduction at this point.

Backport-PR-URL: #22924
PR-URL: #18987
Fixes: #18973
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
@MylesBorins
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landed in f5985c7

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