From: Francois Berder <fberder@outlook.fr>
Date: Sat, 22 Nov 2025 20:45:02 +0000 (+0100)
Subject: examples: Fix checking id parameter in thread_start
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=43ca62bf1943eb3e170cd408be0d2c2a2404b4c2;p=thirdparty%2Fu-boot.git

examples: Fix checking id parameter in thread_start

lthreads is of size MAX_THREADS, hence id must be lower than
MAX_THREADS to avoid any potential buffer overflow in
thread_start function.

Signed-off-by: Francois Berder <fberder@outlook.fr>
---

diff --git a/examples/standalone/sched.c b/examples/standalone/sched.c
index 57ae67e1a5b..64518c6890f 100644
--- a/examples/standalone/sched.c
+++ b/examples/standalone/sched.c
@@ -261,9 +261,8 @@ static void thread_launcher (void)
 static int thread_start (int id)
 {
 	PDEBUG ("thread_start: id=%d", id);
-	if (id <= MASTER_THREAD || id > MAX_THREADS) {
+	if (id <= MASTER_THREAD || id >= MAX_THREADS)
 		return RC_FAILURE;
-	}
 
 	if (lthreads[id].state != STATE_STOPPED)
 		return RC_FAILURE;