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 7B37A289811; Fri, 17 Oct 2025 15:18:50 +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=1760714330; cv=none; b=K4LLiW4LZNBkbOM4Ktc/35shx8ysB2Th0hWSUfpfRciGqzFQWQW7u3fI89RhAYW9pkRlKqlPM1c98yG/aoq4olgnGoTA7kb32YCfwaa4raEjHPZzuTujzGk0xffMT32iA8igrVUvE+cLB2DafJ5B1ZwTUqYxEAH8xrdfP9ZA4uw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760714330; c=relaxed/simple; bh=e1n7RHUGjCxsmTD+j7ySOQQSJgJfzww+VeaU0ySrng0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=UXYVXA7VACjGJfH3rT3N0fHIegpA5S79IAZSKNT3MycuBieGDayeiPrpr+QyylFdI0WOizG7LevzzpgHfZ/jU67yHPntW8RAt2bBqTiIf9hd4g0QhBm6BE7Gd6qONZBBRtI07XCdlVffewPEl6HyOXIFeq7LXZrm0u9AomsSjuA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=AvTVYyu7; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="AvTVYyu7" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 03364C4CEE7; Fri, 17 Oct 2025 15:18:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1760714330; bh=e1n7RHUGjCxsmTD+j7ySOQQSJgJfzww+VeaU0ySrng0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AvTVYyu7SljubqSFQbUYQdwwvwyNnlPnSk9ZlWK9zJAH6YRIrab3jNkOD4rms3I72 LsU1Pop57Eki5KOFpc7pwlc66vAWd/F+4FRu7QbBPHw1kRZjbs6eurW+NQfa0dNHo7 1aVyYKZv51X1vElnwjDpXB3a5SFoZwdjbfQ+z3tc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, David Lechner , Jonathan Cameron , Hans Verkuil Subject: [PATCH 6.12 108/277] media: pci: mg4b: fix uninitialized iio scan data Date: Fri, 17 Oct 2025 16:51:55 +0200 Message-ID: <20251017145151.071963563@linuxfoundation.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251017145147.138822285@linuxfoundation.org> References: <20251017145147.138822285@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: David Lechner commit c0d3f6969bb4d72476cfe7ea9263831f1c283704 upstream. Fix potential leak of uninitialized stack data to userspace by ensuring that the `scan` structure is zeroed before use. Fixes: 0ab13674a9bd ("media: pci: mgb4: Added Digiteq Automotive MGB4 driver") Cc: stable@vger.kernel.org Signed-off-by: David Lechner Reviewed-by: Jonathan Cameron Signed-off-by: Hans Verkuil Signed-off-by: Greg Kroah-Hartman --- drivers/media/pci/mgb4/mgb4_trigger.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/media/pci/mgb4/mgb4_trigger.c +++ b/drivers/media/pci/mgb4/mgb4_trigger.c @@ -91,7 +91,7 @@ static irqreturn_t trigger_handler(int i struct { u32 data; s64 ts __aligned(8); - } scan; + } scan = { }; scan.data = mgb4_read_reg(&st->mgbdev->video, 0xA0); mgb4_write_reg(&st->mgbdev->video, 0xA0, scan.data);