ffmpeg | branch: master | Michael Niedermayer <[email protected]> | Sat Oct 5 18:39:05 2019 +0200| [7b94b22261c216f2eeaaa089e6a003d46f6a3458] | committer: Michael Niedermayer
avcodec/apedec: Check remaining space in decode_array_0000() Fixes: Timeout (? -> 2sec) Fixes: 17886/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5728165124636672 Fixes: 18131/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_APE_fuzzer-5710803432374272 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <[email protected]> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=7b94b22261c216f2eeaaa089e6a003d46f6a3458 --- libavcodec/apedec.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libavcodec/apedec.c b/libavcodec/apedec.c index 9713735574..c6754a5ee6 100644 --- a/libavcodec/apedec.c +++ b/libavcodec/apedec.c @@ -609,6 +609,10 @@ static void decode_array_0000(APEContext *ctx, GetBitContext *gb, ksummax = 1 << rice->k + 7; ksummin = rice->k ? (1 << rice->k + 6) : 0; for (; i < blockstodecode; i++) { + if (get_bits_left(&ctx->gb) < 1) { + ctx->error = 1; + return ; + } out[i] = get_rice_ook(&ctx->gb, rice->k); rice->ksum += out[i] - out[i - 64]; while (rice->ksum < ksummin) { _______________________________________________ ffmpeg-cvslog mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
