1diff --git a/third_party/libopenjpeg20/j2k.c b/third_party/libopenjpeg20/j2k.c 2index 9056feb..c7aa8db 100644 3--- a/third_party/libopenjpeg20/j2k.c 4+++ b/third_party/libopenjpeg20/j2k.c 5@@ -8744,7 +8744,9 @@ static OPJ_BOOL opj_j2k_read_SPCod_SPCoc( opj_j2k_t *p_j2k, 6 p_j2k->m_specific_param.m_decoder.m_default_tcp; 7 8 /* precondition again */ 9- assert(compno < p_j2k->m_private_image->numcomps); 10+ if (compno >= p_j2k->m_private_image->numcomps) { 11+ return OPJ_FALSE; 12+ } 13 14 l_tccp = &l_tcp->tccps[compno]; 15 l_current_ptr = p_header_data; 16