PR #22472 opened by michaelni
URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/22472
Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/22472.patch

Fixes: out of array access
Fixes: vvc_poc_subpic_wh_bug.h266

Signed-off-by: Michael Niedermayer <[email protected]>


>From f83273b464f841aee89aa6687bceddadff0a0705 Mon Sep 17 00:00:00 2001
From: Gil Portnoy <[email protected]>
Date: Wed, 11 Mar 2026 04:39:06 +0100
Subject: [PATCH] avcodec/cbs_h266_syntax_template: Fix w/h typo

Fixes: out of array access
Fixes: vvc_poc_subpic_wh_bug.h266

Signed-off-by: Michael Niedermayer <[email protected]>
---
 libavcodec/cbs_h266_syntax_template.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/cbs_h266_syntax_template.c 
b/libavcodec/cbs_h266_syntax_template.c
index 0ff7459f5c..51e1948d0e 100644
--- a/libavcodec/cbs_h266_syntax_template.c
+++ b/libavcodec/cbs_h266_syntax_template.c
@@ -1216,7 +1216,7 @@ static int FUNC(sps)(CodedBitstreamContext *ctx, 
RWContext *rw,
                     int num_subpic_cols = tmp_width_val /
                                      (current->sps_subpic_width_minus1[0] + 1);
                     if (tmp_width_val % (current->sps_subpic_width_minus1[0] + 
1) ||
-                        tmp_height_val % (current->sps_subpic_width_minus1[0] 
+ 1) ||
+                        tmp_height_val % (current->sps_subpic_height_minus1[0] 
+ 1) ||
                         current->sps_num_subpics_minus1 !=
                         (num_subpic_cols * tmp_height_val /
                          (current->sps_subpic_height_minus1[0] + 1) - 1))
-- 
2.52.0

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