From 75b3c8e2a463cbe28a2449eb37c77e71701b2aa1 Mon Sep 17 00:00:00 2001
From: aineoae86-sys <ai.neo.ae86@gmail.com>
Date: Mon, 6 Jul 2026 03:04:37 +0800
Subject: [PATCH] drivers: leds: Fix LP503X bank mode LED bounds

PWMIOC_ENABLE_LED_BANK_MODE uses the provided LED number to index the LP503X led_mode array. Reject values outside the RGB LED range before writing that array.

Generated-by: OpenAI Codex
Signed-off-by: aineoae86-sys <ai.neo.ae86@gmail.com>
---
 drivers/leds/lp503x.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/leds/lp503x.c b/drivers/leds/lp503x.c
index 384bf9ed7ad..5e33e762be4 100644
--- a/drivers/leds/lp503x.c
+++ b/drivers/leds/lp503x.c
@@ -829,6 +829,12 @@ static int lp503x_ioctl(struct file *filep, int cmd,
         break;
 
       case PWMIOC_ENABLE_LED_BANK_MODE: /* led(0..11), mode required */
+        if (lp503x_ioctl_args->lednum > MAX_RGB_LEDS)
+          {
+            ret = -EINVAL;
+            break;
+          }
+
         ledinfo("INFO: setting LED %d mode to %" PRIx32 "\n",
                 lp503x_ioctl_args->lednum,
                 lp503x_ioctl_args->param);