mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2025-01-19 05:49:09 +02:00
avformat/iff: check size against INT64_MAX
Bigger sizes are misinterpreted as negative numbers by the API Fixes: infinite loop Fixes: 26611/clusterfuzz-testcase-minimized-ffmpeg_dem_IFF_fuzzer-4890614975692800 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> (cherry picked from commit f291cd681b1235e150464ad83974d60d6879b492) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
parent
774b06e252
commit
992fd3262d
@ -223,6 +223,9 @@ static int parse_dsd_diin(AVFormatContext *s, AVStream *st, uint64_t eof)
|
||||
uint64_t orig_pos = avio_tell(pb);
|
||||
const char * metadata_tag = NULL;
|
||||
|
||||
if (size >= INT64_MAX)
|
||||
return AVERROR_INVALIDDATA;
|
||||
|
||||
switch(tag) {
|
||||
case MKTAG('D','I','A','R'): metadata_tag = "artist"; break;
|
||||
case MKTAG('D','I','T','I'): metadata_tag = "title"; break;
|
||||
|
Loading…
x
Reference in New Issue
Block a user