[FFmpeg-devel] [PATCH] aacdec: set ac->output_elements upon channel element free

Lynne dev at lynne.ee
Mon Jul 22 04:22:31 EEST 2024


The issue is that ac->output_elements is populated from
ac->che, which may be freed, leaving dangling pointers in this
list.

Should fix clusterfuzz.
---
 libavcodec/aac/aacdec.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavcodec/aac/aacdec.c b/libavcodec/aac/aacdec.c
index ea2ba84a80..c37de2e003 100644
--- a/libavcodec/aac/aacdec.c
+++ b/libavcodec/aac/aacdec.c
@@ -166,6 +166,7 @@ static av_cold int che_configure(AACDecContext *ac,
             ac->proc.sbr_ctx_close(ac->che[type][id]);
         }
         av_freep(&ac->che[type][id]);
+        memset(ac->output_element, 0, sizeof(ac->output_element));
     }
     return 0;
 }
-- 
2.45.2.753.g447d99e1c3b


More information about the ffmpeg-devel mailing list