diff --git a/modules/rtp_rtcp/source/rtp_generic_frame_descriptor.cc b/modules/rtp_rtcp/source/rtp_generic_frame_descriptor.cc
index ab70b0da77..080cac7a8d 100644
--- a/modules/rtp_rtcp/source/rtp_generic_frame_descriptor.cc
+++ b/modules/rtp_rtcp/source/rtp_generic_frame_descriptor.cc
@@ -60,6 +60,8 @@ bool RtpGenericFrameDescriptor::AddFrameDependencyDiff(uint16_t fdiff) {
   RTC_DCHECK(FirstPacketInSubFrame());
   if (num_frame_deps_ == kMaxNumFrameDependencies)
     return false;
+  if (fdiff == 0)
+    return false;
   RTC_DCHECK_LT(fdiff, 1 << 14);
   RTC_DCHECK_GT(fdiff, 0);
   frame_deps_id_diffs_[num_frame_deps_] = fdiff;
diff --git a/test/fuzzers/corpora/rtp-corpus/rtp-7 b/test/fuzzers/corpora/rtp-corpus/rtp-7
new file mode 100644
index 0000000000..6c4a9feb52
Binary files /dev/null and b/test/fuzzers/corpora/rtp-corpus/rtp-7 differ