From: Sergey Senozhatsky <senozhatsky@chromium.org>
To: Cunlong Li <shenxiaogll@gmail.com>
Cc: Minchan Kim <minchan@kernel.org>,
Sergey Senozhatsky <senozhatsky@chromium.org>,
Jens Axboe <axboe@kernel.dk>,
Andrew Morton <akpm@linux-foundation.org>,
Christoph Hellwig <hch@lst.de>,
linux-block@vger.kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, stable@vger.kernel.org
Subject: Re: [PATCH v2 0/2] zram: fix UAF in zram_bvec_write_partial() and drop dead bio plumbing
Date: Wed, 27 May 2026 16:21:53 +0900 [thread overview]
Message-ID: <ahabSU6QcGJ4T4ZP@google.com> (raw)
In-Reply-To: <20260527-zram-v2-0-2fb84b054b5c@gmail.com>
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?
Looks reasonable (unless I'm missing something):
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
next prev parent reply other threads:[~2026-05-27 7:21 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-27 4:49 [PATCH v2 0/2] zram: fix UAF in zram_bvec_write_partial() and drop dead bio plumbing Cunlong Li
2026-05-27 4:49 ` [PATCH v2 1/2] zram: fix use-after-free in zram_bvec_write_partial() Cunlong Li
2026-05-27 7:24 ` Christoph Hellwig
2026-05-27 14:13 ` Cunlong Li
2026-05-27 4:49 ` [PATCH v2 2/2] zram: drop unused bio parameter from write helpers Cunlong Li
2026-05-27 7:24 ` Christoph Hellwig
2026-05-27 7:21 ` Sergey Senozhatsky [this message]
2026-05-27 14:15 ` [PATCH v2 0/2] zram: fix UAF in zram_bvec_write_partial() and drop dead bio plumbing Cunlong Li
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