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LibC: Use 64-bit stack smash value for 64-bit mode

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Otherwise it'll use the first 32 bits that happen to come after,
leading to very weird bugs. Fixes #8601
This commit is contained in:
Peter Bindels 2021-07-16 23:30:01 +02:00 • committed by Gunnar Beutner
commit a5a62f99c5
Notes: sideshowbarker 2024-07-18 08:53:50 +09:00
3 changed files with 7 additions and 7 deletions
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4
Userland/Libraries/LibC/crt0.cpp
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@ -14,7 +14,7 @@
#ifndef _DYNAMIC_LOADER
extern "C" {
extern u32 __stack_chk_guard;
extern size_t __stack_chk_guard;
int main(int, char**, char**);
@ -31,7 +31,7 @@ NAKED void _start(int, char**, char**)
int _entry(int argc, char** argv, char** env)
{
u32 original_stack_chk = __stack_chk_guard;
size_t original_stack_chk = __stack_chk_guard;
arc4random_buf(&__stack_chk_guard, sizeof(__stack_chk_guard));
if (__stack_chk_guard == 0)