Re: [PATCH v2 19/33] lib/zlib: Unpoison DFLTCC output buffers

[Alexander Potapenko]

On Tue, Nov 21, 2023 at 11:07 PM Ilya Leoshkevich <iii@xxxxxxxxxxxxx> wrote:
>
> The constraints of the DFLTCC inline assembly are not precise: they
> do not communicate the size of the output buffers to the compiler, so
> it cannot automatically instrument it.

KMSAN usually does a poor job instrumenting inline assembly.
Wouldn't be it better to switch to pure C ZLIB implementation, making
ZLIB_DFLTCC depend on !KMSAN?