Kernel: Replace usages of SIGSTKFLT with SIGSEGV

SIGSTKFLT is a signal that signifies a stack fault in a x87 coprocessor,
this signal is not POSIX and also unused by Linux and the BSDs, so let's
use SIGSEGV so programs that setup signal handlers for the common
signals could still handle them in serenity.

1 files changed, 1 insertions, 1 deletions

diff --git a/Kernel/Memory/MemoryManager.cpp b/Kernel/Memory/MemoryManager.cpp
index 9d915078a1..42cd4e34f3 100644
--- a/Kernel/Memory/MemoryManager.cpp
+++ b/Kernel/Memory/MemoryManager.cpp
@@ -654,7 +654,7 @@ void MemoryManager::validate_syscall_preconditions(AddressSpace& space, Register
         VirtualAddress userspace_sp = VirtualAddress { regs.userspace_sp() };
         if (!MM.validate_user_stack_no_lock(space, userspace_sp)) {
             dbgln("Invalid stack pointer: {}", userspace_sp);
-            unlock_and_handle_crash("Bad stack on syscall entry", SIGSTKFLT);
+            unlock_and_handle_crash("Bad stack on syscall entry", SIGSEGV);
         }
     }