mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
24c20d188e
...and all their callers. With the upcoming switch from sizeof(time_t)==4 to sizeof(time_t)==8, sizeof(struct stat) is also increasing. A few newlib functions present in ROM allocate 'struct stat' on the stack and call _fstat_r on this structure. The implementation of fstat is provided in ESP-IDF. This implementation will often do memset(st, 0, sizeof(*st)), where st is 'struct stat*', before setting some fields of this structure. If IDF is built with sizeof(st) different from sizeof(st) which ROM was built with, this will lead to an out-of-bounds write and a stack corruption. This commit removes problematic ROM functions from the linker script. Here are the functions which allocate 'struct stat': * _isatty_r (in ROM) * __swhatbuf_r, called by __smakebuf_r, called by __swsetup_r and __srefill_r (in ROM) * _fseeko_r (not in ROM) * glob2 (not in ROM) * _gettemp (not in ROM) As a result, these functions are used from libc.a, and use correct size of 'stat' structure. Closes https://github.com/espressif/esp-idf/issues/7980 |
||
|---|---|---|
| .. | ||
| ld | ||
| esp_rom_caps.h | ||
| Kconfig.soc_caps.in | ||
| usb_descriptors.c | ||