1 diff --git a/third_party/libjpeg/jdmarker.c b/third_party/libjpeg/jdmarker.c 2 index f4cca8c..c9325af 100644 3 --- a/third_party/libjpeg/jdmarker.c 4 +++ b/third_party/libjpeg/jdmarker.c 5 @@ -342,6 +342,12 @@ get_sos (j_decompress_ptr cinfo) 6 7 TRACEMS3(cinfo, 1, JTRC_SOS_COMPONENT, cc, 8 compptr->dc_tbl_no, compptr->ac_tbl_no); 9 + 10 + /* This CSi (cc) should differ from the previous CSi */ 11 + for (ci = 0; ci < i; ci++) { 12 + if (cinfo->cur_comp_info[ci] == compptr) 13 + ERREXIT1(cinfo, JERR_BAD_COMPONENT_ID, cc); 14 + } 15 } 16 17 /* Collect the additional scan parameters Ss, Se, Ah/Al. */ 18
