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| author | Michael Niedermayer <michael@niedermayer.cc> | 2015-12-05 17:14:36 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2015-12-06 12:40:51 +0100 |
| commit | e5a2128ead24ccafaee1e0bcbe02257f1e123629 (patch) | |
| tree | 35b2f3e7b1be989562489d3f3930fe7dcbd78bb5 | |
| parent | 142f8308a121051c6e2d3531ea4892018ba67ef3 (diff) | |
| download | ffmpeg-e5a2128ead24ccafaee1e0bcbe02257f1e123629.tar.gz | |
avcodec/dirac_parser: Add basic validity checks for next_pu_offset and prev_pu_offset
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit c7d6ec947c053699950af90f695413a5640b3872)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/dirac_parser.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/libavcodec/dirac_parser.c b/libavcodec/dirac_parser.c index a481b266b3..8d93669292 100644 --- a/libavcodec/dirac_parser.c +++ b/libavcodec/dirac_parser.c @@ -114,6 +114,15 @@ static int unpack_parse_unit(DiracParseUnit *pu, DiracParseContext *pc, if (pu->pu_type == 0x10 && pu->next_pu_offset == 0) pu->next_pu_offset = 13; + if (pu->next_pu_offset && pu->next_pu_offset < 13) { + av_log(NULL, AV_LOG_ERROR, "next_pu_offset %d is invalid\n", pu->next_pu_offset); + return 0; + } + if (pu->prev_pu_offset && pu->prev_pu_offset < 13) { + av_log(NULL, AV_LOG_ERROR, "prev_pu_offset %d is invalid\n", pu->prev_pu_offset); + return 0; + } + return 1; } |