linux-kernel - [PATCH AUTOSEL 6.12 288/486] wifi: rtw89: fw: get sb_sel_ver via get_unaligned

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Message-Id: <20250505223922.2682012-288-sashal@kernel.org>
Date: Mon,  5 May 2025 18:36:04 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Ping-Ke Shih <pkshih@...ltek.com>,
	Sasha Levin <sashal@...nel.org>,
	linux-wireless@...r.kernel.org
Subject: [PATCH AUTOSEL 6.12 288/486] wifi: rtw89: fw: get sb_sel_ver via get_unaligned_le32()

From: Ping-Ke Shih <pkshih@...ltek.com>

[ Upstream commit 2f9da853f4d848d23bade4c22931ea0f5a011674 ]

The sb_sel_ver is selection version for secure boot recorded in firmware
binary data, and its size is 4 and offset is 58 (not natural alignment).
Use get_unaligned_le32() to get this value safely. Find this by reviewing.

Signed-off-by: Ping-Ke Shih <pkshih@...ltek.com>
Link: https://patch.msgid.link/20250217064308.43559-3-pkshih@realtek.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/wireless/realtek/rtw89/fw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/realtek/rtw89/fw.c b/drivers/net/wireless/realtek/rtw89/fw.c
index 9d26502a2885a..f0e87af68d8cb 100644
--- a/drivers/net/wireless/realtek/rtw89/fw.c
+++ b/drivers/net/wireless/realtek/rtw89/fw.c
@@ -285,7 +285,7 @@ static int __parse_formatted_mssc(struct rtw89_dev *rtwdev,
 	if (!sec->secure_boot)
 		goto out;
 
-	sb_sel_ver = le32_to_cpu(section_content->sb_sel_ver.v);
+	sb_sel_ver = get_unaligned_le32(&section_content->sb_sel_ver.v);
 	if (sb_sel_ver && sb_sel_ver != sec->sb_sel_mgn)
 		goto ignore;
 
-- 
2.39.5