From cea05864e65db9a2dc8af82b2c63fb8f03c5f876 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Mon, 21 Jun 2021 22:59:04 +0200 Subject: avcodec/cpia: Fix missing src_size update Fixes: out of array read Fixes: 35210/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CPIA_fuzzer-5669199688105984 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/cpia.c | 1 + 1 file changed, 1 insertion(+) (limited to 'libavcodec') diff --git a/libavcodec/cpia.c b/libavcodec/cpia.c index d88bd1aae7..a2ae16ec2c 100644 --- a/libavcodec/cpia.c +++ b/libavcodec/cpia.c @@ -111,6 +111,7 @@ static int cpia_decode_frame(AVCodecContext *avctx, // Read line length, two byte little endian linelength = AV_RL16(src); src += 2; + src_size -= 2; if (src_size < linelength) { frame->decode_error_flags = FF_DECODE_ERROR_INVALID_BITSTREAM; -- cgit v1.2.3