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authorLimin Wang <lance.lmwang@gmail.com>2020-03-25 18:45:47 +0800
committerMichael Niedermayer <michael@niedermayer.cc>2020-03-27 01:42:16 +0100
commitaa822007a4bb7a8855fee66af25d99bf5bddac23 (patch)
tree7081c0a856a0400edc17799a2762f5d0dfe6220b /libavfilter
parent9f1d2f47db0112d41dbc423c9215ff886512efd3 (diff)
downloadffmpeg-aa822007a4bb7a8855fee66af25d99bf5bddac23.tar.gz
avfilter/vf_showinfo: check if the s12m data size is valid
Signed-off-by: Limin Wang <lance.lmwang@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavfilter')
-rw-r--r--libavfilter/vf_showinfo.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/libavfilter/vf_showinfo.c b/libavfilter/vf_showinfo.c
index 79b79db2d3..71534d1fa8 100644
--- a/libavfilter/vf_showinfo.c
+++ b/libavfilter/vf_showinfo.c
@@ -318,6 +318,10 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
break;
case AV_FRAME_DATA_S12M_TIMECODE: {
uint32_t *tc = (uint32_t*)sd->data;
+ if (sd->size != 16) {
+ av_log(ctx, AV_LOG_ERROR, "invalid data");
+ break;
+ }
for (int j = 1; j <= tc[0]; j++) {
char tcbuf[AV_TIMECODE_STR_SIZE];
av_timecode_make_smpte_tc_string(tcbuf, tc[j], 0);