| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 1 | /* From: Denis Vlasenko <vda.linux@googlemail.com> |
| 2 | * With certain combination of .config options fclose() does not |
| 3 | * remove FILE* pointer from _stdio_openlist. As a result, subsequent |
| 4 | * fopen() may allocate new FILE structure exactly in place of one |
| 5 | * freed by previous fclose(), which then makes _stdio_openlist |
| 6 | * circularlt looped. The following program will enter infinite loop |
| 7 | * trying to walk _stdio_openlist in exit(): |
| 8 | */ |
| 9 | |
| 10 | #include <stdlib.h> |
| 11 | #include <stdio.h> |
| 12 | |
| 13 | int main(int argc, char *argv[]) |
| 14 | { |
| 15 | FILE* fp; |
| 16 | fp = fopen("/dev/null", "r"); |
| 17 | fclose(fp); |
| 18 | fp = fopen("/dev/zero", "r"); |
| 19 | fclose(fp); |
| 20 | return 0; |
| 21 | } |