ffmpeg | branch: release/4.0 | Michael Niedermayer <mich...@niedermayer.cc> | Sun Jul 29 13:16:37 2018 +0200| [07255282d0ba9db78ceb6f8db8770204e7db381e] | committer: Michael Niedermayer
avcodec/mlp_parser: Check if synccode is within buffer Fixes: undefined shift Fixes: 9216/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TRUEHD_fuzzer-6281404575907840 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit 51ac3f43b8bf3b7f2af555af319cd240bb8b4ebf) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=07255282d0ba9db78ceb6f8db8770204e7db381e --- libavcodec/mlp_parser.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/mlp_parser.c b/libavcodec/mlp_parser.c index 185bd4d667..eb3435b6cb 100644 --- a/libavcodec/mlp_parser.c +++ b/libavcodec/mlp_parser.c @@ -320,7 +320,7 @@ static int mlp_parse(AVCodecParserContext *s, mp->bytes_left = 0; } - sync_present = (AV_RB32(buf + 4) & 0xfffffffe) == 0xf8726fba; + sync_present = buf_size >= 8 && (AV_RB32(buf + 4) & 0xfffffffe) == 0xf8726fba; if (!sync_present) { /* The first nibble of a frame is a parity check of the 4-byte _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
