diff --git a/tests/fate/h264.mak b/tests/fate/h264.mak
index 7f3fe69946..c1bb69ba26 100644
--- a/tests/fate/h264.mak
+++ b/tests/fate/h264.mak
@@ -196,6 +196,14 @@ FATE_H264  := $(FATE_H264:%=fate-h264-conformance-%)                    \
 FATE_H264-$(call DEMDEC, H264, H264) += $(FATE_H264)
 FATE_H264-$(call DEMDEC,  MOV, H264) += fate-h264-crop-to-container
 FATE_H264-$(call DEMDEC,  MOV, H264) += fate-h264-interlace-crop
+
+# this sample has invalid reference list modification, but decodes fine
+# by using a previous ref frame instead of a missing one
+FATE_H264-$(call DEMDEC,  MOV, H264) += fate-h264-invalid-ref-mod
+
+# this sample has invalid extradata that is not escaped
+FATE_H264-$(call DEMDEC,  MOV, H264) += fate-h264-unescaped-extradata
+
 FATE_H264-$(call ALLYES, MOV_DEMUXER H264_MP4TOANNEXB_BSF) += fate-h264-bsf-mp4toannexb
 FATE_H264-$(call DEMDEC, MATROSKA, H264) += fate-h264-direct-bff
 FATE_H264-$(call DEMDEC, FLV, H264) += fate-h264-brokensps-2580
@@ -400,6 +408,8 @@ fate-h264-interlace-crop:                         CMD = framecrc -i $(TARGET_SAM
 fate-h264-lossless:                               CMD = framecrc -i $(TARGET_SAMPLES)/h264/lossless.h264
 fate-h264-direct-bff:                             CMD = framecrc -i $(TARGET_SAMPLES)/h264/direct-bff.mkv
 fate-h264-brokensps-2580:                         CMD = framecrc -i $(TARGET_SAMPLES)/h264/brokensps.flv -vf format=yuv420p,scale=w=192:h=144 -sws_flags bitexact+bilinear
+fate-h264-invalid-ref-mod:                        CMD = framecrc -i $(TARGET_SAMPLES)/h264/h264refframeregression.mp4 -an -frames 10 -pix_fmt yuv420p10le
+fate-h264-unescaped-extradata:                    CMD = framecrc -i $(TARGET_SAMPLES)/h264/unescaped_extradata.mp4 -an -frames 10
 
 fate-h264-reinit-%:                               CMD = framecrc -i $(TARGET_SAMPLES)/h264/$(@:fate-h264-%=%).h264 -vf format=yuv444p10le,scale=w=352:h=288
 
diff --git a/tests/ref/fate/h264-invalid-ref-mod b/tests/ref/fate/h264-invalid-ref-mod
new file mode 100644
index 0000000000..09271fe134
--- /dev/null
+++ b/tests/ref/fate/h264-invalid-ref-mod
@@ -0,0 +1,15 @@
+#tb 0: 1001/24000
+#media_type 0: video
+#codec_id 0: rawvideo
+#dimensions 0: 1920x1080
+#sar 0: 1/1
+0,          1,          1,        1,  6220800, 0x89daa15e
+0,          2,          2,        1,  6220800, 0xcf52e254
+0,          3,          3,        1,  6220800, 0x91132c13
+0,          4,          4,        1,  6220800, 0x37b8be91
+0,          5,          5,        1,  6220800, 0x2b09bafa
+0,          6,          6,        1,  6220800, 0x06d79d8d
+0,          7,          7,        1,  6220800, 0x8e793c1d
+0,          8,          8,        1,  6220800, 0xea0fd885
+0,          9,          9,        1,  6220800, 0x7786a2ad
+0,         10,         10,        1,  6220800, 0xed4f9dd9
diff --git a/tests/ref/fate/h264-unescaped-extradata b/tests/ref/fate/h264-unescaped-extradata
new file mode 100644
index 0000000000..5e44bc255d
--- /dev/null
+++ b/tests/ref/fate/h264-unescaped-extradata
@@ -0,0 +1,15 @@
+#tb 0: 1/25
+#media_type 0: video
+#codec_id 0: rawvideo
+#dimensions 0: 320x176
+#sar 0: 0/1
+0,          0,          0,        1,    84480, 0x0699eb38
+0,          1,          1,        1,    84480, 0xce902c32
+0,          2,          2,        1,    84480, 0xb6d125f7
+0,          3,          3,        1,    84480, 0x2555e93b
+0,          4,          4,        1,    84480, 0xaea5c08c
+0,          5,          5,        1,    84480, 0x848eb3da
+0,          6,          6,        1,    84480, 0x6cfabe90
+0,          7,          7,        1,    84480, 0xed16cc5e
+0,          8,          8,        1,    84480, 0xda8df8f8
+0,          9,          9,        1,    84480, 0x83fa054b