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authorMichael Niedermayer <michaelni@gmx.at>2011-12-23 03:00:12 +0100
committerMichael Niedermayer <michaelni@gmx.at>2011-12-23 03:25:51 +0100
commitd1c28e35300130f0ee28a3e5bbeb2cea403fad57 (patch)
treea18d0b0989962e2e2cab201fbf6128ae8332d8a4 /libavcodec/4xm.c
parent9f50dafe9025555f11e66e3b09cf3db2cd53cfb2 (diff)
parent4e8d6218c3cb8b9feffb70f8a53859540b975b36 (diff)
Merge remote-tracking branch 'qatar/master'
* qatar/master: build: fix standalone compilation of OMA muxer build: fix standalone compilation of Microsoft XMV demuxer build: fix standalone compilation of Core Audio Format demuxer kvmc: fix invalid reads 4xm: Add a check in decode_i_frame to prevent buffer overreads adpcm: fix IMA SMJPEG decoding options: set minimum for "threads" to zero bsd: use number of logical CPUs as automatic thread count windows: use number of CPUs as automatic thread count linux: use number of CPUs as automatic thread count pthreads: reset active_thread_type when slice thread_init returrns early v410dec: include correct headers Drop ALT_ prefix from BITSTREAM_READER_LE name. lavfi: always build vsrc_buffer. ra144enc: zero the reflection coeffs if the filter is unstable sws: readd PAL8 to isPacked() mov: Don't stick the QuickTime field ordering atom in extradata. truespeech: fix invalid reads in truespeech_apply_twopoint_filter() Conflicts: configure libavcodec/4xm.c libavcodec/avcodec.h libavfilter/Makefile libavfilter/allfilters.c libavformat/Makefile libswscale/swscale_internal.h Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/4xm.c')
-rw-r--r--libavcodec/4xm.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/libavcodec/4xm.c b/libavcodec/4xm.c
index 370fe6df47..5dcb6d8276 100644
--- a/libavcodec/4xm.c
+++ b/libavcodec/4xm.c
@@ -688,10 +688,13 @@ static int decode_i_frame(FourXContext *f, const uint8_t *buf, int length){
unsigned int prestream_size;
const uint8_t *prestream;
- if (bitstream_size > (1<<26) || length < bitstream_size + 12)
- return -1;
- prestream_size = 4*AV_RL32(buf + bitstream_size + 4);
- prestream = buf + bitstream_size + 12;
+ if (bitstream_size > (1<<26) || length < bitstream_size + 12) {
+ av_log(f->avctx, AV_LOG_ERROR, "packet size too small\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ prestream_size = 4 * AV_RL32(buf + bitstream_size + 4);
+ prestream = buf + bitstream_size + 12;
if (prestream_size > (1<<26) ||
prestream_size != length - (bitstream_size + 12)){