diff options
| -rw-r--r-- | libpthread/nptl/allocatestack.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libpthread/nptl/allocatestack.c b/libpthread/nptl/allocatestack.c index 9399c2a63..3f0586d28 100644 --- a/libpthread/nptl/allocatestack.c +++ b/libpthread/nptl/allocatestack.c @@ -645,7 +645,7 @@ allocate_stack (const struct pthread_attr *attr, struct pthread **pdp, prot) != 0) goto mprot_error; #elif defined _STACK_GROWS_UP - if (mprotect ((char *) pd - pd->guardsize, + if (mprotect ((char *) (((uintptr_t) pd - pd->guardsize) & ~pagesize_m1), pd->guardsize - guardsize, prot) != 0) goto mprot_error; #endif |