Module: libav Branch: release/9 Commit: eb1aa871d4ef9fc11484de436fa02c352b1b7cac
Author: Michael Niedermayer <[email protected]> Committer: Vittorio Giovara <[email protected]> Date: Thu Jan 31 04:20:24 2013 +0100 h264_cabac: Break infinite loops This fixes out of array reads and/or infinite loops. 30 is the maximum number of bits that can be read into coeff_abs below. CC: [email protected] Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Martin Storsjö <[email protected]> --- libavcodec/h264_cabac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/h264_cabac.c b/libavcodec/h264_cabac.c index 92c1c03..a8063bd 100644 --- a/libavcodec/h264_cabac.c +++ b/libavcodec/h264_cabac.c @@ -1713,7 +1713,7 @@ decode_cabac_residual_internal(H264Context *h, DCTELEM *block, \ if( coeff_abs >= 15 ) { \ int j = 0; \ - while( get_cabac_bypass( CC ) ) { \ + while (get_cabac_bypass(CC) && j < 30) { \ j++; \ } \ \ _______________________________________________ libav-commits mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-commits
