ffmpeg | branch: release/2.8 | Michael Niedermayer <mich...@niedermayer.cc> | Thu Jun 14 15:41:33 2018 +0200| [c1121e7ec29b78bf96a4411ca378e2336a32dbcd] | committer: Michael Niedermayer
avutil/common: Fix undefined behavior in av_clip_uintp2_c() Fixes: negation of -2147483648 cannot be represented in type 'int'; cast to an unsigned type to negate this value to itself Fixes: 8521/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DIRAC_fuzzer-5639024952737792 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 aa41d322be71106ce147445f2b42bb763f1eff86) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c1121e7ec29b78bf96a4411ca378e2336a32dbcd --- libavutil/common.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavutil/common.h b/libavutil/common.h index 81f5fedf29..ee7028e1fb 100644 --- a/libavutil/common.h +++ b/libavutil/common.h @@ -232,7 +232,7 @@ static av_always_inline av_const int av_clip_intp2_c(int a, int p) */ static av_always_inline av_const unsigned av_clip_uintp2_c(int a, int p) { - if (a & ~((1<<p) - 1)) return -a >> 31 & ((1<<p) - 1); + if (a & ~((1<<p) - 1)) return (~a) >> 31 & ((1<<p) - 1); else return a; } _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog