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path: root/drivers/input/serio/libps2.c
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Diffstat (limited to 'drivers/input/serio/libps2.c')
-rw-r--r--drivers/input/serio/libps2.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/input/serio/libps2.c b/drivers/input/serio/libps2.c
index 250e213cc80c..3e19344eda93 100644
--- a/drivers/input/serio/libps2.c
+++ b/drivers/input/serio/libps2.c
@@ -12,6 +12,7 @@
#include <linux/sched.h>
#include <linux/interrupt.h>
#include <linux/input.h>
+#include <linux/kmsan-checks.h>
#include <linux/serio.h>
#include <linux/i8042.h>
#include <linux/libps2.h>
@@ -294,9 +295,11 @@ int __ps2_command(struct ps2dev *ps2dev, u8 *param, unsigned int command)
serio_pause_rx(ps2dev->serio);
- if (param)
+ if (param) {
for (i = 0; i < receive; i++)
param[i] = ps2dev->cmdbuf[(receive - 1) - i];
+ kmsan_unpoison_memory(param, receive);
+ }
if (ps2dev->cmdcnt &&
(command != PS2_CMD_RESET_BAT || ps2dev->cmdcnt != 1)) {