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| author | Michael Niedermayer <michael@niedermayer.cc> | 2015-12-05 17:14:36 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2015-12-14 16:51:01 +0100 |
| commit | ece3912daf656651b092f2362f62203594418a3a (patch) | |
| tree | cc1b5f2e9b304927154798f5b8a81ae84d724b77 | |
| parent | d092b7f04ca8dfb977343aa12289b6b6123260ea (diff) | |
| download | ffmpeg-ece3912daf656651b092f2362f62203594418a3a.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 12f1a60145..c7c4b697c8 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; } |