From ac6ab77741f5e57c8c1d3980bfaf3690eb1cd8c0 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sat, 14 Nov 2015 17:59:56 +0100 Subject: avcodec/rscc: Check input size for raw mode Fixes out of array read Fixes: 7fcd09eadd046e326d8ea0af66f166c8/asan_heap-oob_4a52e5_2273_fa6078a10dd575df266fb1e0b4114cd5.avi Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer --- libavcodec/rscc.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'libavcodec/rscc.c') diff --git a/libavcodec/rscc.c b/libavcodec/rscc.c index 9e7887da9a..a5bb7d3102 100644 --- a/libavcodec/rscc.c +++ b/libavcodec/rscc.c @@ -221,6 +221,11 @@ static int rscc_decode_frame(AVCodecContext *avctx, void *data, /* Get pixels buffer, it may be deflated or just raw */ if (pixel_size == packed_size) { + if (bytestream2_get_bytes_left(gbc) < pixel_size) { + av_log(avctx, AV_LOG_ERROR, "Insufficient input for %d\n", pixel_size); + ret = AVERROR_INVALIDDATA; + goto end; + } pixels = gbc->buffer; } else { uLongf len = ctx->inflated_size; -- cgit v1.2.3