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Fix unsound behaviour with null characters in thread names (issue #32475) #32476

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merged 1 commit into from
Mar 26, 2016

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diwic
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@diwic diwic commented Mar 25, 2016

Previously, the thread name (&str) was converted to a CString in the
new thread, but outside unwind::try, causing a panic to continue into FFI.

This patch changes that behaviour, so that the panic instead happens
in the parent thread (where panic infrastructure is properly set up),
not the new thread.

This could potentially be a breaking change for architectures who don't
support thread names.

…t-lang#32475)

Previously, the thread name (&str) was converted to a CString in the
new thread, but outside unwind::try, causing a panic to continue into FFI.

This patch changes that behaviour, so that the panic instead happens
in the parent thread (where panic infrastructure is properly set up),
not the new thread.

This could potentially be a breaking change for architectures who don't
support thread names.

Signed-off-by: David Henningsson <[email protected]>
@rust-highfive
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Thanks for the pull request, and welcome! The Rust team is excited to review your changes, and you should hear from @brson (or someone else) soon.

If any changes to this PR are deemed necessary, please add them as extra commits. This ensures that the reviewer can see what has changed since they last reviewed the code. Due to the way GitHub handles out-of-date commits, this should also make it reasonably obvious what issues have or haven't been addressed. Large or tricky changes may require several passes of review and changes.

Please see the contribution instructions for more information.

@alexcrichton
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@bors: r+ 78495d5

Thanks!

Manishearth added a commit to Manishearth/rust that referenced this pull request Mar 26, 2016
…ichton

Fix unsound behaviour with null characters in thread names (issue rust-lang#32475)

Previously, the thread name (&str) was converted to a CString in the
new thread, but outside unwind::try, causing a panic to continue into FFI.

This patch changes that behaviour, so that the panic instead happens
in the parent thread (where panic infrastructure is properly set up),
not the new thread.

This could potentially be a breaking change for architectures who don't
support thread names.
bors added a commit that referenced this pull request Mar 26, 2016
Manishearth added a commit to Manishearth/rust that referenced this pull request Mar 26, 2016
…ichton

Fix unsound behaviour with null characters in thread names (issue rust-lang#32475)

Previously, the thread name (&str) was converted to a CString in the
new thread, but outside unwind::try, causing a panic to continue into FFI.

This patch changes that behaviour, so that the panic instead happens
in the parent thread (where panic infrastructure is properly set up),
not the new thread.

This could potentially be a breaking change for architectures who don't
support thread names.
Manishearth added a commit to Manishearth/rust that referenced this pull request Mar 26, 2016
bors added a commit that referenced this pull request Mar 26, 2016
Rollup of 11 pull requests

- Successful merges: #32131, #32199, #32257, #32325, #32435, #32447, #32448, #32456, #32469, #32476, #32482
- Failed merges: #32240
@bors bors merged commit 78495d5 into rust-lang:master Mar 26, 2016
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5 participants