ffmpeg | branch: release/5.1 | Michael Niedermayer <mich...@niedermayer.cc> | 
Sun Apr 28 21:09:45 2024 +0200| [06cc1197e500b6bed8792c9d52b4dc88b8e4df3b] | 
committer: Michael Niedermayer

avcodec/ac3_parser: Check init_get_bits8() for failure

Fixes: CID1420393 Unchecked return value

Sponsored-by: Sovereign Tech Fund
Reviewed-by: Lynne <d...@lynne.ee>
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>
(cherry picked from commit 63415168dbd96475372e37ae0fd47bafe151e2f0)
Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=06cc1197e500b6bed8792c9d52b4dc88b8e4df3b
---

 libavcodec/ac3_parser.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libavcodec/ac3_parser.c b/libavcodec/ac3_parser.c
index 4f154bb7c4..9ca8992c2b 100644
--- a/libavcodec/ac3_parser.c
+++ b/libavcodec/ac3_parser.c
@@ -185,7 +185,9 @@ int av_ac3_parse_header(const uint8_t *buf, size_t size,
     AC3HeaderInfo hdr;
     int err;
 
-    init_get_bits8(&gb, buf, size);
+    err = init_get_bits8(&gb, buf, size);
+    if (err < 0)
+        return AVERROR_INVALIDDATA;
     err = ff_ac3_parse_header(&gb, &hdr);
     if (err < 0)
         return AVERROR_INVALIDDATA;

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