Backport 9815 & 10161 to v6.x #11176
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As per ecma-262 2015's #sec-%typedarray%-buffer-byteoffset-length, `offset` would be an integer, not a 32 bit unsigned integer. Also, `length` would be an integer with the maximum value of 2^53 - 1, not a 32 bit unsigned integer. This would be a problem because, if we create a buffer from an arraybuffer, from an offset which is greater than 2^32, it would be actually pointing to a different location in arraybuffer. For example, if we use 2^40 as offset, then the actual value used will be 0, because `byteOffset >>>= 0` will convert `byteOffset` to a 32 bit unsigned int, which is based on 2^32 modulo. This is a redo, as the ca37fa5 broke CI. Refer: nodejs#9814 Refer: nodejs#9492 PR-URL: nodejs#9815 Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Trevor Norris <trev.norris@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
test-buffer-creation-regression is flaky on some SmartOS hosts in CI, timing out. Move to sequential so it does not compete with other tests for resources. Reduce three test cases to just the one needed to identify the regression. PR-URL: nodejs#10161 Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Italo A. Casas <me@italoacasas.com>
nodejs-github-bot
added
buffer
This was referenced Feb 5, 2017
jasnell
approved these changes
Feb 6, 2017
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@thefourtheye looks like failures in CI |
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One more CI run, as the old jobs are not found now. https://ci.nodejs.org/job/node-test-pull-request/6538/ |
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yet another ci: https://ci.nodejs.org/job/node-test-pull-request/6673/ |
jasnell
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Mar 3, 2017
As per ecma-262 2015's #sec-%typedarray%-buffer-byteoffset-length, `offset` would be an integer, not a 32 bit unsigned integer. Also, `length` would be an integer with the maximum value of 2^53 - 1, not a 32 bit unsigned integer. This would be a problem because, if we create a buffer from an arraybuffer, from an offset which is greater than 2^32, it would be actually pointing to a different location in arraybuffer. For example, if we use 2^40 as offset, then the actual value used will be 0, because `byteOffset >>>= 0` will convert `byteOffset` to a 32 bit unsigned int, which is based on 2^32 modulo. This is a redo, as the ca37fa5 broke CI. Refer: #9814 Refer: #9492 PR-URL: #9815 Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Trevor Norris <trev.norris@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Backport-Of: #9815 PR-URL: #11176 Reviewed-By: James M Snell <jasnell@gmail.com>
jasnell
pushed a commit
that referenced
this pull request
Mar 3, 2017
test-buffer-creation-regression is flaky on some SmartOS hosts in CI, timing out. Move to sequential so it does not compete with other tests for resources. Reduce three test cases to just the one needed to identify the regression. PR-URL: #10161 Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Italo A. Casas <me@italoacasas.com> Backport-Of: #10161 PR-URL: #11176 Reviewed-By: James M Snell <jasnell@gmail.com>
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Landed in 82a008b...4e90a13 |
MylesBorins
pushed a commit
that referenced
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Mar 9, 2017
As per ecma-262 2015's #sec-%typedarray%-buffer-byteoffset-length, `offset` would be an integer, not a 32 bit unsigned integer. Also, `length` would be an integer with the maximum value of 2^53 - 1, not a 32 bit unsigned integer. This would be a problem because, if we create a buffer from an arraybuffer, from an offset which is greater than 2^32, it would be actually pointing to a different location in arraybuffer. For example, if we use 2^40 as offset, then the actual value used will be 0, because `byteOffset >>>= 0` will convert `byteOffset` to a 32 bit unsigned int, which is based on 2^32 modulo. This is a redo, as the ca37fa5 broke CI. Refer: #9814 Refer: #9492 PR-URL: #9815 Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Trevor Norris <trev.norris@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Backport-Of: #9815 PR-URL: #11176 Reviewed-By: James M Snell <jasnell@gmail.com>
MylesBorins
pushed a commit
that referenced
this pull request
Mar 9, 2017
test-buffer-creation-regression is flaky on some SmartOS hosts in CI, timing out. Move to sequential so it does not compete with other tests for resources. Reduce three test cases to just the one needed to identify the regression. PR-URL: #10161 Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Italo A. Casas <me@italoacasas.com> Backport-Of: #10161 PR-URL: #11176 Reviewed-By: James M Snell <jasnell@gmail.com>
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Backport of #9815 & #10161
As per ecma-262 2015's #sec-%typedarray%-buffer-byteoffset-length,
offsetwould be an integer, not a 32 bit unsigned integer. Also,lengthwould be an integer with the maximum value of 2^53 - 1, not a32 bit unsigned integer.
This would be a problem because, if we create a buffer from an
arraybuffer, from an offset which is greater than 2^32, it would be
actually pointing to a different location in arraybuffer. For example,
if we use 2^40 as offset, then the actual value used will be 0,
because
byteOffset >>>= 0will convertbyteOffsetto a 32 bitunsigned int, which is based on 2^32 modulo.
This is a redo, as the ca37fa5 broke
CI.
Refer: #9814
Refer: #9492
PR-URL: #9815
Reviewed-By: Michaël Zasso targos@protonmail.com
Reviewed-By: Trevor Norris trev.norris@gmail.com
Reviewed-By: James M Snell jasnell@gmail.com
Reviewed-By: Colin Ihrig cjihrig@gmail.com
Reviewed-By: Matteo Collina matteo.collina@gmail.com
Checklist
make -j4 test(UNIX), orvcbuild test(Windows) passesAffected core subsystem(s)
buffer
CI Run: https://ci.nodejs.org/job/node-test-pull-request/6221/