From 2be51d14f278c1c207becafed0db20cbc4e89f55 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Fri, 16 Oct 2020 09:30:39 +0200 Subject: avformat/av1dec: Fix padding in obu_get_packet() Fixes: stack buffer overflow (read) Fixes: 26369/clusterfuzz-testcase-minimized-ffmpeg_dem_VIVIDAS_fuzzer-5721057325219840 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavformat/av1dec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'libavformat') diff --git a/libavformat/av1dec.c b/libavformat/av1dec.c index 10c4560968..395eef6522 100644 --- a/libavformat/av1dec.c +++ b/libavformat/av1dec.c @@ -382,7 +382,7 @@ static int obu_read_header(AVFormatContext *s) static int obu_get_packet(AVFormatContext *s, AVPacket *pkt) { ObuContext *c = s->priv_data; - uint8_t header[MAX_OBU_HEADER_SIZE]; + uint8_t header[MAX_OBU_HEADER_SIZE + AV_INPUT_BUFFER_PADDING_SIZE]; int64_t obu_size; int size = av_fifo_space(c->fifo); int ret, len, type; -- cgit v1.2.3