diff --git a/third_party/libopenjpeg20/j2k.c b/third_party/libopenjpeg20/j2k.c | |
index 8e35b33ee..d95963a5c 100644 | |
--- a/third_party/libopenjpeg20/j2k.c | |
+++ b/third_party/libopenjpeg20/j2k.c | |
@@ -9527,6 +9527,10 @@ static OPJ_BOOL opj_j2k_read_SPCod_SPCoc(opj_j2k_t *p_j2k, | |
p_j2k->m_specific_param.m_decoder.m_default_tcp; | |
/* precondition again */ | |
+ if (compno >= p_j2k->m_private_image->numcomps) { | |
+ return OPJ_FALSE; | |
+ } | |
+ | |
assert(compno < p_j2k->m_private_image->numcomps); | |
l_tccp = &l_tcp->tccps[compno]; |