diff options
| -rw-r--r-- | Modules/faulthandler.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/Modules/faulthandler.c b/Modules/faulthandler.c index d45b866..63a9b91 100644 --- a/Modules/faulthandler.c +++ b/Modules/faulthandler.c @@ -1121,13 +1121,26 @@ faulthandler_stack_overflow(PyObject *self, PyObject *Py_UNUSED(ignored)) { size_t depth, size; uintptr_t sp = (uintptr_t)&depth; - uintptr_t stop; + uintptr_t stop, lower_limit, upper_limit; faulthandler_suppress_crash_report(); depth = 0; - stop = stack_overflow(sp - STACK_OVERFLOW_MAX_SIZE, - sp + STACK_OVERFLOW_MAX_SIZE, - &depth); + + if (STACK_OVERFLOW_MAX_SIZE <= sp) { + lower_limit = sp - STACK_OVERFLOW_MAX_SIZE; + } + else { + lower_limit = 0; + } + + if (UINTPTR_MAX - STACK_OVERFLOW_MAX_SIZE >= sp) { + upper_limit = sp + STACK_OVERFLOW_MAX_SIZE; + } + else { + upper_limit = UINTPTR_MAX; + } + + stop = stack_overflow(lower_limit, upper_limit, &depth); if (sp < stop) size = stop - sp; else |