RepoMirrors/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2024-12-25 08:42:39 +00:00
Code Issues Projects Releases Wiki Activity

avpacket: fix leak on realloc in av_packet_add_side_data()

Browse Source 
If realloc fails, the pointer is overwritten and the previously allocated buffer
is leaked, which goes against the expected functionality of keeping the packet
unchanged in case of error.

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
This commit is contained in:
James Almer 2016-11-19 15:33:58 -03:00 committed by Anton Khirnov
parent c7ab0eb305
commit aa498c3183
1 changed files with 4 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
libavcodec/avpacket.c
View File

@ -240,16 +240,17 @@ FF_ENABLE_DEPRECATION_WARNINGS
int av_packet_add_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
uint8_t *data, size_t size)
{
AVPacketSideData *tmp;
int elems = pkt->side_data_elems;
if ((unsigned)elems + 1 > INT_MAX / sizeof(*pkt->side_data))
return AVERROR(ERANGE);
pkt->side_data = av_realloc(pkt->side_data,
(elems + 1) * sizeof(*pkt->side_data));
if (!pkt->side_data)
tmp = av_realloc(pkt->side_data, (elems + 1) * sizeof(*tmp));
if (!tmp)
return AVERROR(ENOMEM);
pkt->side_data = tmp;
pkt->side_data[elems].data = data;
pkt->side_data[elems].size = size;
pkt->side_data[elems].type = type;