From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH 2/2] avcodec/vvc/refs: Check content_ref in set_pict_type()
Date: Sun, 2 Feb 2025 22:17:21 +0100
Message-ID: <20250202211721.1469377-2-michael@niedermayer.cc> (raw)
In-Reply-To: <20250202211721.1469377-1-michael@niedermayer.cc>
Fixes: 390565846/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VVC_fuzzer-4990028521996288
Fixes: Null pointer dereference
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
libavcodec/vvc/refs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/vvc/refs.c b/libavcodec/vvc/refs.c
index 486515d06db..1cfca482047 100644
--- a/libavcodec/vvc/refs.c
+++ b/libavcodec/vvc/refs.c
@@ -186,7 +186,7 @@ static void set_pict_type(AVFrame *frame, const VVCContext *s, const VVCFrameCon
const CodedBitstreamFragment *current = &s->current_frame;
for (int i = 0; i < current->nb_units && !has_b; i++) {
const CodedBitstreamUnit *unit = current->units + i;
- if (unit->type <= VVC_RSV_IRAP_11) {
+ if (unit->content_ref && unit->type <= VVC_RSV_IRAP_11) {
const H266RawSliceHeader *rsh = unit->content_ref;
has_inter |= !IS_I(rsh);
has_b |= IS_B(rsh);
--
2.48.1
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next prev parent reply other threads:[~2025-02-02 21:17 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-02 21:17 [FFmpeg-devel] [PATCH 1/2] avcodec/vvc/refs: fix negative pps_scaling_win offsets Michael Niedermayer
2025-02-02 21:17 ` Michael Niedermayer [this message]
2025-02-03 8:05 ` Frank Plowman
2025-02-03 23:24 ` Michael Niedermayer
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