Integrated: 8296496: Overzealous check in sizecalc.h prevents large memory allocation

Alexander Zuev kizune at openjdk.org
Thu Nov 10 22:45:41 UTC 2022


On Mon, 7 Nov 2022 22:04:55 GMT, Alexander Zuev <kizune at openjdk.org> wrote:

> Removed the additional multiplication overflow detection.
> Instead cast all the parameters to type_t just the way they are treated in the existing size check macro. 
> This way there is no possibility to accidentally provide parameters that will pass the size check macro while being cast to size_t there but then due to the missing cast cause the wrong size passed the actual allocation function.
> Since this checking macro was used in couple of different places all of them needs to be updated in the similar way.

This pull request has now been integrated.

Changeset: 84e12244
Author:    Alexander Zuev <kizune at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/84e12244a4ff82b3307a5ffe6fbe9dded7b08d86
Stats:     11 lines in 1 file changed: 0 ins; 4 del; 7 mod

8296496: Overzealous check in sizecalc.h prevents large memory allocation

Reviewed-by: aivanov, azvegint

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PR: https://git.openjdk.org/jdk/pull/11030



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