From 55d234b4330d1588eb127cf2283a442ee341f2c2 Mon Sep 17 00:00:00 2001
From: Jiasheng Jiang <jiashengjiangcool@gmail.com>
Date: Sun, 3 Aug 2025 20:32:23 +0000
Subject: [PATCH] libavcodec/tests/motion: Add check for
 avcodec_alloc_context3()

Add check for the return value of avcodec_alloc_context3() to avoid potential NULL pointer dereference.

Fixes: 5d48e4eafa ("Merge commit 'a6a750c7ef240b72ce01e9653343a0ddf247d196'")
Signed-off-by: Jiasheng Jiang <jiashengjiangcool@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 libavcodec/tests/motion.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libavcodec/tests/motion.c b/libavcodec/tests/motion.c
index c37fc551c3..719fba537d 100644
--- a/libavcodec/tests/motion.c
+++ b/libavcodec/tests/motion.c
@@ -129,6 +129,10 @@ int main(int argc, char **argv)
     printf("ffmpeg motion test\n");
 
     ctx = avcodec_alloc_context3(NULL);
+    if (!ctx) {
+        return 1;
+    }
+
     ctx->flags |= AV_CODEC_FLAG_BITEXACT;
     av_force_cpu_flags(0);
     ff_me_cmp_init(&cctx, ctx);