From: Michael Niedermayer <[email protected]> Avoid buffer overread.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Luca Barbato <[email protected]> --- libavcodec/jpeg2k.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/libavcodec/jpeg2k.c b/libavcodec/jpeg2k.c index a13e392..4ce121a 100644 --- a/libavcodec/jpeg2k.c +++ b/libavcodec/jpeg2k.c @@ -206,6 +206,11 @@ int ff_jpeg2k_init_component(Jpeg2KComponent *comp, int reslevelno, bandno, gbandno = 0, ret, i, j; uint32_t csize = 1; + if (!codsty->nreslevels2decode) { + av_log(avctx, AV_LOG_ERROR, "nreslevels2decode uninitialized\n"); + return AVERROR_INVALIDDATA; + } + if (ret = ff_jpeg2k_dwt_init(&comp->dwt, comp->coord, codsty->nreslevels2decode - 1, codsty->transform)) -- 1.7.9.5 _______________________________________________ libav-devel mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-devel
