ffmpeg | branch: release/5.0 | Michael Niedermayer <mich...@niedermayer.cc> | Sat Sep 10 23:58:36 2022 +0200| [4dcc092a5a302349b653ad9eb123443d6a3ed365] | committer: Michael Niedermayer
avcodec/mobiclip: Check quantizer for overflow Fixes: signed integer overflow: 127 + 2147483536 cannot be represented in type 'int' Fixes: 48798/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MOBICLIP_fuzzer-6014034970804224 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 677e27a9afa7305a918336699b377fd5b42cc299) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=4dcc092a5a302349b653ad9eb123443d6a3ed365 --- libavcodec/mobiclip.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/mobiclip.c b/libavcodec/mobiclip.c index 23d64f76f6..281b63a0bc 100644 --- a/libavcodec/mobiclip.c +++ b/libavcodec/mobiclip.c @@ -329,7 +329,7 @@ static av_cold int mobiclip_init(AVCodecContext *avctx) return 0; } -static int setup_qtables(AVCodecContext *avctx, int quantizer) +static int setup_qtables(AVCodecContext *avctx, int64_t quantizer) { MobiClipContext *s = avctx->priv_data; int qx, qy; @@ -1255,7 +1255,7 @@ static int mobiclip_decode(AVCodecContext *avctx, void *data, frame->key_frame = 0; s->dct_tab_idx = 0; - ret = setup_qtables(avctx, s->quantizer + get_se_golomb(gb)); + ret = setup_qtables(avctx, s->quantizer + (int64_t)get_se_golomb(gb)); if (ret < 0) return ret; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
