ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Tue Sep 8 23:03:19 2020 +0200| [2749e20d044c5b014b1cb2749d97078df3a88ba1] | committer: Michael Niedermayer
avcodec/fastaudio: Fix invalid shift exponent Fixes: shift exponent 32 is too large for 32-bit type 'unsigned int' Fixes: 25434/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FASTAUDIO_fuzzer-6252363168612352 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=2749e20d044c5b014b1cb2749d97078df3a88ba1 --- libavcodec/fastaudio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/fastaudio.c b/libavcodec/fastaudio.c index 1dda310612..e50678cd3d 100644 --- a/libavcodec/fastaudio.c +++ b/libavcodec/fastaudio.c @@ -89,7 +89,7 @@ static int read_bits(int bits, int *ppos, unsigned *src) pos = *ppos; pos += bits; - r = src[(pos - 1) / 32] >> (32 - pos % 32); + r = src[(pos - 1) / 32] >> ((-pos) & 31); *ppos = pos; return r & ((1 << bits) - 1); _______________________________________________ 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".
