Fixes: use of uninitilaized data Fixes: 385167047/clusterfuzz-testcase-minimized-ffmpeg_dem_IPMOVIE_fuzzer-5941477505564672
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavformat/ipmovie.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/libavformat/ipmovie.c b/libavformat/ipmovie.c index 5d1748953ab..3701be276f3 100644 --- a/libavformat/ipmovie.c +++ b/libavformat/ipmovie.c @@ -614,7 +614,8 @@ static int ipmovie_read_header(AVFormatContext *s) ipmovie->avf = s; - avio_read(pb, signature_buffer, sizeof(signature_buffer)); + if (avio_read(pb, signature_buffer, sizeof(signature_buffer)) != sizeof(signature_buffer)) + return AVERROR_INVALIDDATA; while (memcmp(signature_buffer, signature, sizeof(signature))) { memmove(signature_buffer, signature_buffer + 1, sizeof(signature_buffer) - 1); signature_buffer[sizeof(signature_buffer) - 1] = avio_r8(pb); -- 2.47.0 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
