Re: [EXT] [PATCH v2] net: atlantic: Avoid out-of-bounds indexing

From: Igor Russkikh
Date: Fri Apr 08 2022 - 10:39:23 EST




> UBSAN warnings are observed on atlantic driver:
> [ 294.432996] UBSAN: array-index-out-of-bounds in
> /build/linux-Qow4fL/linux-5.15.0/drivers/net/ethernet/aquantia/atlantic/aq
> _nic.c:484:48
> [ 294.433695] index 8 is out of range for type 'aq_vec_s *[8]'
>
> The ring is dereferenced right before breaking out the loop, to prevent
> that from happening, only use the index in the loop to fix the issue.

Thanks,

Reviewed-by: Igor Russkikh <irusskikh@xxxxxxxxxxx>

Igor