From: sashiko-bot@kernel.org
To: "Yong Liu" <pkfxxxing@gmail.com>
Cc: linux-rdma@vger.kernel.org
Subject: Re: [PATCH v5 2/3] scsi: target: Clear all control read scatterlist entries
Date: Fri, 13 Nov 2026 08:46:11 +0000 [thread overview]
Message-ID: <sashiko-outbox-212459@kernel.org> (raw)
In-Reply-To: <20261113083848.1517595-3-pkfxxxing@gmail.com>
> __target_submit() only clears the first scatterlist entry of a control
> read buffer supplied by a fabric driver. Control CDB handlers can leave
> response bytes untouched, so later entries can retain stale kernel data
> that is returned to the initiator.
>
> Clear every supplied scatterlist entry before command execution. Use
> sg_zero_buffer() so entries spanning multiple pages are handled as well.
> Keep clearing the full entries, including any part beyond data_length,
> as the existing code does for the first entry.
>
> Fixes: 944981c7e106 ("target: Add control CDB READ payload zero work-around")
> Cc: stable@vger.kernel.org
> Suggested-by: Bart Van Assche <bvanassche@acm.org>
> Signed-off-by: Yong Liu <pkfxxxing@gmail.com>
Sashiko has reviewed this patch and found no issues.
--
Sashiko AI review · https://sashiko.dev/#/patchset/20261113083848.1517595-1-pkfxxxing@gmail.com?part=2
next prev parent reply other threads:[~2026-11-13 8:46 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-10 3:08 [PATCH 0/1] RDMA/srpt: Fix read underflow information disclosure liuyong
2026-11-10 3:08 ` [PATCH 1/1] RDMA/srpt: Limit read data transfers to the command length liuyong
2026-11-10 3:33 ` sashiko-bot
2026-11-10 5:28 ` [PATCH v2] " liuyong
2026-11-10 5:48 ` sashiko-bot
2026-11-11 0:54 ` Bart Van Assche
2026-11-11 6:28 ` liuyong
2026-11-11 6:53 ` [PATCH v3] RDMA/srpt: Prevent uninitialized read buffer disclosure liuyong
2026-11-11 7:27 ` sashiko-bot
2026-11-12 9:41 ` [PATCH v4] " liuyong
2026-11-12 10:07 ` sashiko-bot
2026-11-12 21:33 ` Bart Van Assche
2026-11-13 8:38 ` [PATCH v5 0/3] RDMA/srpt: Fix command initialization and " Yong Liu
2026-11-13 8:38 ` [PATCH v5 1/3] RDMA/srpt: Initialize commands before returning BUSY Yong Liu
2026-11-13 8:38 ` [PATCH v5 2/3] scsi: target: Clear all control read scatterlist entries Yong Liu
2026-11-13 8:46 ` sashiko-bot [this message]
2026-11-13 8:38 ` [PATCH v5 3/3] RDMA/srpt: Prevent uninitialized read buffer disclosure Yong Liu
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