ffmpeg | branch: release/4.2 | Michael Niedermayer <mich...@niedermayer.cc> | Sat May 16 00:31:23 2020 +0200| [989a2788c094fc78e0fd209d691eae1c8ba8b2f4] | committer: Michael Niedermayer
avcodec/pnmdec: Use unsigned for maxval rescaling Fixes: signed integer overflow: 65535 * 55335 cannot be represented in type 'int' Fixes: 21955/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PGMYUV_fuzzer-5669206981083136 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 49459aca47d4803b2188fbf12b758bd2b01e91d7) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=989a2788c094fc78e0fd209d691eae1c8ba8b2f4 --- libavcodec/pnmdec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/pnmdec.c b/libavcodec/pnmdec.c index 958c5e43b0..2c98e26934 100644 --- a/libavcodec/pnmdec.c +++ b/libavcodec/pnmdec.c @@ -132,7 +132,7 @@ static int pnm_decode_frame(AVCodecContext *avctx, void *data, init_put_bits(&pb, ptr, linesize); for(j=0; j<avctx->width * components; j++){ unsigned int c=0; - int v=0; + unsigned v=0; if(s->type < 4) while(s->bytestream < s->bytestream_end && (*s->bytestream < '0' || *s->bytestream > '9' )) s->bytestream++; _______________________________________________ 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".
