ffmpeg | branch: release/2.8 | Michael Niedermayer <mich...@niedermayer.cc> | Sun Aug 12 22:55:59 2018 +0200| [bb070fc4684dd80a82983469ccf685dfeb3e1c4e] | committer: Michael Niedermayer
avcodec/shorten: Fix integer overflow in residual/LPC combination Fixes: signed integer overflow: -540538872 + -2012739576 cannot be represented in type 'int' Fixes: 9255/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SHORTEN_fuzzer-5758630052757504 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 db7e9082e1a1479c6a8844f7adf77eae03cc2aa7) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=bb070fc4684dd80a82983469ccf685dfeb3e1c4e --- libavcodec/shorten.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/shorten.c b/libavcodec/shorten.c index 047fb05a9b..de2be90e77 100644 --- a/libavcodec/shorten.c +++ b/libavcodec/shorten.c @@ -315,7 +315,7 @@ static int decode_subframe_lpc(ShortenContext *s, int command, int channel, for (j = 0; j < pred_order; j++) sum += coeffs[j] * (unsigned)s->decoded[channel][i - j - 1]; s->decoded[channel][i] = get_sr_golomb_shorten(&s->gb, residual_size) + - (sum >> qshift); + (unsigned)(sum >> qshift); } /* add offset to current samples */ _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
