ffmpeg | branch: release/3.3 | Michael Niedermayer <mich...@niedermayer.cc> | Fri Aug 18 16:42:59 2017 +0200| [736ef73f9c04e8c614e56c15d192dd1f194fe721] | committer: Michael Niedermayer
avcodec/pixlet: Fixes: undefined shift in av_mod_uintp2() Fixes: runtime error: shift exponent 4294967289 is too large for 32-bit type 'int' Fixes: 3030/clusterfuzz-testcase-minimized-4649809254285312 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 8754ccd3b319fdf4e2beed5657a3e327999c64ce) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=736ef73f9c04e8c614e56c15d192dd1f194fe721 --- libavcodec/pixlet.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/pixlet.c b/libavcodec/pixlet.c index 088226bdda..a9cfe085c9 100644 --- a/libavcodec/pixlet.c +++ b/libavcodec/pixlet.c @@ -262,7 +262,7 @@ static int read_high_coeffs(AVCodecContext *avctx, uint8_t *src, int16_t *dst, i flag = 0; - if (state * 4ULL > 0xFF || i >= size) + if ((uint64_t)state > 0xFF / 4 || i >= size) continue; pfx = ((state + 8) >> 5) + (state ? ff_clz(state): 32) - 24; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
