From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AD07F22307D; Wed, 4 Dec 2024 17:02:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733331766; cv=none; b=UXfOLiBl6KHSnYKx0Mkgm4G4CFed/Cemwg6VU/pNtFNbV34y1XDi6OZNN7AoQPAVL8DK469UG3xSS/tUEfxzwfOMtzm23H4VHeRVk0Feinx0YNHZOXckm2IEGP048zHkVEc/jzkU5dXa0g/AH4x1rG9/K/jXFSkAOe0uO2hP8os= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733331766; c=relaxed/simple; bh=sX2ifxhR1NkCXq8Qfn5BbG3f3qkL7/tt4eJWtxFyX8c=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=AwyBTnwTcwEfBtW/473eBqO+xTrNC07rnPJGekQLLa2hv+UuXxS73DZ35EG8U4IHs8wegmjGa4oP6Y5TZLvufIA+myA/cp/Oa92bh6qYS0R59ZPXKvHp3maIDi5Az74+kj4dglXJQdveMiPSXQPj9+sI62wfjEILawny1TK0Pew= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=QXM9D9zh; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="QXM9D9zh" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5D0D4C4CEE0; Wed, 4 Dec 2024 17:02:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1733331766; bh=sX2ifxhR1NkCXq8Qfn5BbG3f3qkL7/tt4eJWtxFyX8c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QXM9D9zhM6tJdX5MjsVGs/MvI1pPxsGuBI8Xev1wZzQAM5wYAxkzBfaMtbZwZItkA 7RjnpW/FGTniiiXiQcUIVdKu1BcXJYAeCE8x9iBWDpKsZuhQosdsLPekWF7vAUp0Lc yF0Ap0goFubW/S7NAKq7Hf4K9XVYVMgNmkwNgwxjpXAcG4BLjG7A83Z9wTvRu3GJVv 88zSr4OrSdfrPytBGmWFx32QDjJ+u1JK4mgNGonvo+lcymUwEFe6BeNwuiQXfmCSU+ t3r1IKHAWOsy+Lh6sQl9qEWm5le5m0a4nOgQUQgClEiGbh1QqOCQ7CnTHyVY/CR5Jl ZXMhnGN4OW/9g== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: =?UTF-8?q?Kai=20M=C3=A4kisara?= , John Meneghini , "Martin K . Petersen" , Sasha Levin , James.Bottomley@HansenPartnership.com, linux-scsi@vger.kernel.org Subject: [PATCH AUTOSEL 6.1 09/15] scsi: st: Don't modify unknown block number in MTIOCGET Date: Wed, 4 Dec 2024 10:50:48 -0500 Message-ID: <20241204155105.2214350-9-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241204155105.2214350-1-sashal@kernel.org> References: <20241204155105.2214350-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 6.1.119 Content-Transfer-Encoding: 8bit From: Kai Mäkisara [ Upstream commit 5bb2d6179d1a8039236237e1e94cfbda3be1ed9e ] Struct mtget field mt_blkno -1 means it is unknown. Don't add anything to it. Signed-off-by: Kai Mäkisara Link: https://bugzilla.kernel.org/show_bug.cgi?id=219419#c14 Link: https://lore.kernel.org/r/20241106095723.63254-2-Kai.Makisara@kolumbus.fi Reviewed-by: John Meneghini Tested-by: John Meneghini Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/scsi/st.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index b90a440e135dc..b91da7b51814a 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -3754,7 +3754,7 @@ static long st_ioctl(struct file *file, unsigned int cmd_in, unsigned long arg) ((STp->density << MT_ST_DENSITY_SHIFT) & MT_ST_DENSITY_MASK); mt_status.mt_blkno = STps->drv_block; mt_status.mt_fileno = STps->drv_file; - if (STp->block_size != 0) { + if (STp->block_size != 0 && mt_status.mt_blkno >= 0) { if (STps->rw == ST_WRITING) mt_status.mt_blkno += (STp->buffer)->buffer_bytes / STp->block_size; -- 2.43.0