| gst-ffmpeg: qdm2: check array index before use, fix out of array |
| accesses |
| |
| Upstream-Status: Backport |
| |
| Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind |
| Signed-off-by: Michael Niedermayer <michaelni@gmx.at> |
| --- |
| libavcodec/qdm2.c | 5 +++++ |
| 1 files changed, 5 insertions(+), 0 deletions(-) |
| |
| diff --git a/libavcodec/qdm2.c b/libavcodec/qdm2.c |
| index 4cf4b2f..1dfb8d5 100644 |
| --- a/gst-libs/ext/libav/libavcodec/qdm2.c |
| +++ b/gst-libs/ext/libav/libavcodec/qdm2.c |
| @@ -1257,6 +1257,11 @@ static void qdm2_decode_super_block (QDM2Context *q) |
| for (i = 0; packet_bytes > 0; i++) { |
| int j; |
| |
| + if (i>=FF_ARRAY_ELEMS(q->sub_packet_list_A)) { |
| + SAMPLES_NEEDED_2("too many packet bytes"); |
| + return; |
| + } |
| + |
| q->sub_packet_list_A[i].next = NULL; |
| |
| if (i > 0) { |
| -- |
| 1.7.5.4 |
| |