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- --- a/libbb/lineedit.c
- +++ b/libbb/lineedit.c
- @@ -632,6 +632,19 @@ static void free_tab_completion_data(voi
-
- static void add_match(char *matched)
- {
- + unsigned char *p = (unsigned char*)matched;
- + while (*p) {
- + /* ESC attack fix: drop any string with control chars */
- + if (*p < ' '
- + || (!ENABLE_UNICODE_SUPPORT && *p >= 0x7f)
- + || (ENABLE_UNICODE_SUPPORT && *p == 0x7f)
- + ) {
- + free(matched);
- + return;
- + }
- + p++;
- + }
- +
- matches = xrealloc_vector(matches, 4, num_matches);
- matches[num_matches] = matched;
- num_matches++;
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