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Date: Tue, 30 Aug 2022 13:21:18 -0400 From: Sasha Levin <sashal@...nel.org> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, Jean Delvare <jdelvare@...e.de>, Sasha Levin <sashal@...nel.org>, jdelvare@...e.com Subject: [PATCH AUTOSEL 5.15 01/23] firmware: dmi: Use the proper accessor for the version field From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com> [ Upstream commit d2139dfca361a1f5bfc4d4a23455b1a409a69cd4 ] The byte at offset 6 represents length. Don't take it and drop it immediately by using proper accessor, i.e. get_unaligned_be24(). [JD: Change the subject to something less frightening] Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com> Signed-off-by: Jean Delvare <jdelvare@...e.de> Signed-off-by: Sasha Levin <sashal@...nel.org> --- drivers/firmware/dmi_scan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c index f191a1f901ac7..0eb6b617f709a 100644 --- a/drivers/firmware/dmi_scan.c +++ b/drivers/firmware/dmi_scan.c @@ -630,7 +630,7 @@ static int __init dmi_smbios3_present(const u8 *buf) { if (memcmp(buf, "_SM3_", 5) == 0 && buf[6] < 32 && dmi_checksum(buf, buf[6])) { - dmi_ver = get_unaligned_be32(buf + 6) & 0xFFFFFF; + dmi_ver = get_unaligned_be24(buf + 7); dmi_num = 0; /* No longer specified */ dmi_len = get_unaligned_le32(buf + 12); dmi_base = get_unaligned_le64(buf + 16); -- 2.35.1
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