Re: [linus:master] [kasan, fortify] 2e577732e8: BUG:KASAN:global-out-of-bounds_in_usb_copy_descriptors

[Andrey Konovalov]

On Tue, Jul 23, 2024 at 10:51 AM kernel test robot
<oliver.sang@xxxxxxxxx> wrote:
>
> Hello,
>
> we noticed this is a fix commit, however, we don't have enough knowledge to
> determine if new KASAN issue is expected actually after this fix.
> so we just made this report FYI what we observed in our tests.
>
>
> kernel test robot noticed "BUG:KASAN:global-out-of-bounds_in_usb_copy_descriptors" on:
>
> commit: 2e577732e8d28b9183df701fb90cb7943aa4ed16 ("kasan, fortify: properly rename memintrinsics")
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

Hi,

Yes, that patch might uncover new bugs that previously were not
detectable. There's still a chance that something is wrong with KASAN
and it reports a false positive, but most likely, this report is a
real issue.

Thank you!