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Fix use-after-free issue with the global 'default_material' (issue 1483) #1583

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merged 3 commits into from
Jun 3, 2021

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kkg4theweb
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@kkg4theweb kkg4theweb commented Jun 1, 2021

Signed-off-by: Krishna Gadepalli [email protected]

Closes #1483.

@stevengj stevengj marked this pull request as ready for review June 3, 2021 19:04
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user_func = from.user_func;
// NOTE: the user_data field here opaque/void - so this is the best we can do.
user_data = from.user_data;
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This may be problematic — we may need to increment a Python reference count.

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Not a regression, however — filed as #1589

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@stevengj stevengj merged commit cf14e30 into NanoComp:master Jun 3, 2021
bencbartlett pushed a commit to bencbartlett/meep that referenced this pull request Sep 9, 2021
…83) (NanoComp#1583)

* Fix use-after-free issue with the global 'default_material' (issue 1483)

Signed-off-by: Krishna Gadepalli <[email protected]>

* Make all copy_from methods take const ref.

* use size_t instead of 'int' when computing size for memcpy (update existing update_weights too)
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segmentation fault in _default_material argument of create_structure_and_set_materials
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