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-rw-r--r--src/lib/openjp2/ht_dec.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/lib/openjp2/ht_dec.c b/src/lib/openjp2/ht_dec.c
index 120d7e49..9ea061f3 100644
--- a/src/lib/openjp2/ht_dec.c
+++ b/src/lib/openjp2/ht_dec.c
@@ -1210,6 +1210,9 @@ OPJ_BOOL opj_t1_ht_decode_cblk(opj_t1_t *t1,
/* Concatenate all chunks */
cblkdata = t1->cblkdatabuffer;
+ if (cblkdata == NULL) {
+ return OPJ_FALSE;
+ }
cblk_len = 0;
for (i = 0; i < cblk->numchunks; i++) {
memcpy(cblkdata + cblk_len, cblk->chunks[i].data, cblk->chunks[i].len);