ffmpeg | branch: master | Michael Niedermayer <[email protected]> | Thu Jan 14 21:29:01 2021 +0100| [d82ee907d6caafbc1212c4b63ecac2dcd30f23b0] | committer: Michael Niedermayer
avformat/utils: Check dts - (1<<pts_wrap_bits) overflow Fixes: signed integer overflow: -9223372036842389247 - 2147483648 cannot be represented in type 'long long' Fixes: 26910/clusterfuzz-testcase-minimized-ffmpeg_dem_FLV_fuzzer-4845007531671552 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <[email protected]> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=d82ee907d6caafbc1212c4b63ecac2dcd30f23b0 --- libavformat/utils.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/utils.c b/libavformat/utils.c index f534b6e5b5..6f100294a1 100644 --- a/libavformat/utils.c +++ b/libavformat/utils.c @@ -1254,7 +1254,7 @@ static void compute_pkt_fields(AVFormatContext *s, AVStream *st, presentation_delayed = 1; if (pkt->pts != AV_NOPTS_VALUE && pkt->dts != AV_NOPTS_VALUE && - st->pts_wrap_bits < 63 && + st->pts_wrap_bits < 63 && pkt->dts > INT64_MIN + (1LL << (st->pts_wrap_bits - 1)) && pkt->dts - (1LL << (st->pts_wrap_bits - 1)) > pkt->pts) { if (is_relative(st->cur_dts) || pkt->dts - (1LL<<(st->pts_wrap_bits - 1)) > st->cur_dts) { pkt->dts -= 1LL << st->pts_wrap_bits; _______________________________________________ ffmpeg-cvslog mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
