6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Mark Pearson <mpearson-lenovo@xxxxxxxxx>
[ Upstream commit 6f7d0f5fd8e440c3446560100ac4ff9a55eec340 ]
The Lenovo workstations require the password opcode to be run before
the attribute value is changed (if Admin password is enabled).
Tested on some Thinkpads to confirm they are OK with this order too.
Signed-off-by: Mark Pearson <mpearson-lenovo@xxxxxxxxx>
Fixes: 640a5fa50a42 ("platform/x86: think-lmi: Opcode support")
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240209152359.528919-1-mpearson-lenovo@xxxxxxxxx
Reviewed-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
(cherry picked from commit 6f7d0f5fd8e440c3446560100ac4ff9a55eec340)
[Harshit: CVE-2024-26836; Resolve conflicts due to missing commit:
318d97849fc2 ("platform/x86: think-lmi: Add bulk save feature") which is
not in 6.6.y]
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@xxxxxxxxxx>
Signed-off-by: Vegard Nossum <vegard.nossum@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/platform/x86/think-lmi.c | 16 +++++++++-------
1 file changed, 9 insertions(+), 7 deletions(-)
--- a/drivers/platform/x86/think-lmi.c
+++ b/drivers/platform/x86/think-lmi.c
@@ -1021,7 +1021,16 @@ static ssize_t current_value_store(struc
* Note - this sets the variable and then the password as separate
* WMI calls. Function tlmi_save_bios_settings will error if the
* password is incorrect.
+ * Workstation's require the opcode to be set before changing the
+ * attribute.
*/
+ if (tlmi_priv.pwd_admin->valid && tlmi_priv.pwd_admin->password[0]) {
+ ret = tlmi_opcode_setting("WmiOpcodePasswordAdmin",
+ tlmi_priv.pwd_admin->password);
+ if (ret)
+ goto out;
+ }
+
set_str = kasprintf(GFP_KERNEL, "%s,%s;", setting->display_name,
new_setting);
if (!set_str) {
@@ -1033,13 +1042,6 @@ static ssize_t current_value_store(struc
if (ret)
goto out;
- if (tlmi_priv.pwd_admin->valid && tlmi_priv.pwd_admin->password[0]) {
- ret = tlmi_opcode_setting("WmiOpcodePasswordAdmin",
- tlmi_priv.pwd_admin->password);
- if (ret)
- goto out;
- }
-
ret = tlmi_save_bios_settings("");
} else { /* old non-opcode based authentication method (deprecated) */
if (tlmi_priv.pwd_admin->valid && tlmi_priv.pwd_admin->password[0]) {
