wrapper/FFmpeg
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

lavf/id3v2: fail read_apic on EOF reading mimetype

Browse source 
avio_read may return EOF, leaving the mimetype array unitialized. fail
early when this occurs to avoid using the array in an unitialized state.

Reviewed-by: Tomas Härdin <tjoppen@acc.umu.se>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit ee1e39a576)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
chcunningham 2018-12-14 13:44:07 -08:00 • committed by Michael Niedermayer
parent 9925adcd68
commit 490a5253ca
1 changed files with 4 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

6
libavformat/id3v2.c
View file

@ -589,7 +589,7 @@ static void read_apic(AVFormatContext *s, AVIOContext *pb, int taglen,
int isv34)
{
int enc, pic_type;
char mimetype[64];
char mimetype[64] = {0};
const CodecMime *mime = ff_id3v2_mime_tags;
enum AVCodecID id = AV_CODEC_ID_NONE;
ID3v2ExtraMetaAPIC *apic = NULL;
@ -611,7 +611,9 @@ static void read_apic(AVFormatContext *s, AVIOContext *pb, int taglen,
if (isv34) {
taglen -= avio_get_str(pb, taglen, mimetype, sizeof(mimetype));
} else {
avio_read(pb, mimetype, 3);
if (avio_read(pb, mimetype, 3) < 0)
goto fail;
mimetype[3] = 0;
taglen -= 3;
}