Re: [PATCH v2 0/2] zram: fix UAF in zram_bvec_write_partial() and drop dead bio plumbing

[Cunlong Li]

On Wed, May 27, 2026 at 04:21:53PM +0900, Sergey Senozhatsky wrote:
> On (26/05/27 12:49), Cunlong Li wrote:
> > Patch 1 fixes a use-after-free in zram_bvec_write_partial() that
> > happens on PAGE_SIZE > 4K configurations when a partial write hits a
> > ZRAM_WB slot.
> > 
> > Patch 2 is a follow-up cleanup that drops the now-unused bio parameter
> > from zram_bvec_write_partial() and zram_bvec_write(), no functional
> > change.
> 
> Did you test it?

Compile-tested only so far; I haven't had a chance to run a
PAGE_SIZE > 4K reproducer yet.

Thanks for the review.

> 
> Looks reasonable (unless I'm missing something):
> Reviewed-by: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>