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| author | Bram Moolenaar <Bram@vim.org> | 2020-08-28 23:27:20 +0200 |
|---|---|---|
| committer | Bram Moolenaar <Bram@vim.org> | 2020-08-28 23:27:20 +0200 |
| commit | b06a6d59d12dbd67d55b3c46f6e5547e9103c931 (patch) | |
| tree | ab63210e60efda976b41b4486905cdc3da0b30ae /src/mbyte.c | |
| parent | 4e4473c927167fd24e5c8df90e0e8035080cf2da (diff) | |
| download | vim-git-b06a6d59d12dbd67d55b3c46f6e5547e9103c931.tar.gz | |
patch 8.2.1537: memory acccess error when using setcellwidths()v8.2.1537
Problem: Memory acccess error when using setcellwidths().
Solution: Use array and pointers correctly.
Diffstat (limited to 'src/mbyte.c')
| -rw-r--r-- | src/mbyte.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/src/mbyte.c b/src/mbyte.c index 3faefa6af..46d039248 100644 --- a/src/mbyte.c +++ b/src/mbyte.c @@ -5421,8 +5421,8 @@ cw_value(int c) static int tv_nr_compare(const void *a1, const void *a2) { - listitem_T *li1 = (listitem_T *)a1; - listitem_T *li2 = (listitem_T *)a2; + listitem_T *li1 = *(listitem_T **)a1; + listitem_T *li2 = *(listitem_T **)a2; return li1->li_tv.vval.v_number - li2->li_tv.vval.v_number; } @@ -5470,8 +5470,10 @@ f_setcellwidths(typval_T *argvars, typval_T *rettv UNUSED) vim_free(ptrs); return; } - for (lili = li->li_tv.vval.v_list->lv_first, i = 0; lili != NULL; - lili = lili->li_next, ++i) + + lili = li->li_tv.vval.v_list->lv_first; + ptrs[item] = lili; + for (i = 0; lili != NULL; lili = lili->li_next, ++i) { if (lili->li_tv.v_type != VAR_NUMBER) break; @@ -5505,7 +5507,7 @@ f_setcellwidths(typval_T *argvars, typval_T *rettv UNUSED) vim_free(ptrs); return; } - ptrs[item++] = lili; + ++item; } // Sort the list on the first number. @@ -5520,9 +5522,9 @@ f_setcellwidths(typval_T *argvars, typval_T *rettv UNUSED) // Store the items in the new table. item = 0; - for (li = l->lv_first; li != NULL; li = li->li_next) + for (item = 0; item < l->lv_len; ++item) { - listitem_T *lili = li->li_tv.vval.v_list->lv_first; + listitem_T *lili = ptrs[item]; varnumber_T n1; n1 = lili->li_tv.vval.v_number; @@ -5538,7 +5540,6 @@ f_setcellwidths(typval_T *argvars, typval_T *rettv UNUSED) table[item].last = lili->li_tv.vval.v_number; lili = lili->li_next; table[item].width = lili->li_tv.vval.v_number; - ++item; } vim_free(ptrs); |