Re: [PATCH] block/vpc: Avoid dynamic stack allocation

[Kevin Wolf]

Am 11.08.2023 um 19:52 hat Peter Maydell geschrieben:
> From: Philippe Mathieu-Daudé <phi...@redhat.com>
> 
> Use autofree heap allocation instead of variable-length array on the
> stack. Here we don't expect the bitmap size to be enormous, and
> since we're about to read/write it to disk the overhead of the
> allocation should be fine.
> 
> The codebase has very few VLAs, and if we can get rid of them all we
> can make the compiler error on new additions.  This is a defensive
> measure against security bugs where an on-stack dynamic allocation
> isn't correctly size-checked (e.g.  CVE-2021-3527).
> 
> Signed-off-by: Philippe Mathieu-Daudé <phi...@redhat.com>
> [PMM: expanded commit message]
> Signed-off-by: Peter Maydell <peter.mayd...@linaro.org>

Thanks, applied to the block branch.

Kevin