diff options
| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-02-01 19:59:55 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-04-22 16:22:22 +0200 |
| commit | f7c3484b2659063043100e8194d5790d2aa1a73c (patch) | |
| tree | dd71ecec3e045786647cd56025d4cac1b5901d03 /libavformat/mxfdec.c | |
| parent | f8ec1da8ac8e3daf2403e744f166ea9557b2d333 (diff) | |
avformat/mxfdec: Fix file position addition
Fixes: signed integer overflow: 9223372036854775805 + 4 cannot be represented in type 'long'
Fixes: 29927/clusterfuzz-testcase-minimized-ffmpeg_dem_MXF_fuzzer-5579985228267520
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavformat/mxfdec.c')
| -rw-r--r-- | libavformat/mxfdec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c index 1f372affcb..840484b37e 100644 --- a/libavformat/mxfdec.c +++ b/libavformat/mxfdec.c @@ -2903,7 +2903,7 @@ static int mxf_read_local_tags(MXFContext *mxf, KLVPacket *klv, MXFMetadataReadF meta = NULL; ctx = mxf; } - while (avio_tell(pb) + 4 < klv_end && !avio_feof(pb)) { + while (avio_tell(pb) + 4ULL < klv_end && !avio_feof(pb)) { int ret; int tag = avio_rb16(pb); int size = avio_rb16(pb); /* KLV specified by 0x53 */ |