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-rw-r--r--libavcodec/dirac_parser.c9
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;
}