ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sun Dec 18 17:55:09 2022 +0100| [8374a747af247d45eb466fcb4aee90f3ae798aad] | committer: Michael Niedermayer
avcodec/wavpack: Avoid undefined shift in get_tail() Fixes: left shift of 1208485947 by 1 places cannot be represented in type 'int' Fixes: 54058/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WAVPACK_fuzzer-5827521084260352 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=8374a747af247d45eb466fcb4aee90f3ae798aad --- libavcodec/wavpack.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c index 3cb4077550..4346304f54 100644 --- a/libavcodec/wavpack.c +++ b/libavcodec/wavpack.c @@ -129,7 +129,7 @@ static av_always_inline unsigned get_tail(GetBitContext *gb, unsigned k) e = (1LL << (p + 1)) - k - 1; res = get_bits_long(gb, p); if (res >= e) - res = (res << 1) - e + get_bits1(gb); + res = res * 2U - e + get_bits1(gb); return res; } _______________________________________________ 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".
