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Diffstat (limited to 'arch/sparc/mm/fault_32.c')
-rw-r--r--arch/sparc/mm/fault_32.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c
index bd8601601af..5b836f5aea9 100644
--- a/arch/sparc/mm/fault_32.c
+++ b/arch/sparc/mm/fault_32.c
@@ -539,6 +539,12 @@ do_sigbus:
__do_fault_siginfo(BUS_ADRERR, SIGBUS, tsk->thread.kregs, address);
}
+static void check_stack_aligned(unsigned long sp)
+{
+ if (sp & 0x7UL)
+ force_sig(SIGILL, current);
+}
+
void window_overflow_fault(void)
{
unsigned long sp;
@@ -547,6 +553,8 @@ void window_overflow_fault(void)
if(((sp + 0x38) & PAGE_MASK) != (sp & PAGE_MASK))
force_user_fault(sp + 0x38, 1);
force_user_fault(sp, 1);
+
+ check_stack_aligned(sp);
}
void window_underflow_fault(unsigned long sp)
@@ -554,6 +562,8 @@ void window_underflow_fault(unsigned long sp)
if(((sp + 0x38) & PAGE_MASK) != (sp & PAGE_MASK))
force_user_fault(sp + 0x38, 0);
force_user_fault(sp, 0);
+
+ check_stack_aligned(sp);
}
void window_ret_fault(struct pt_regs *regs)
@@ -564,4 +574,6 @@ void window_ret_fault(struct pt_regs *regs)
if(((sp + 0x38) & PAGE_MASK) != (sp & PAGE_MASK))
force_user_fault(sp + 0x38, 0);
force_user_fault(sp, 0);
+
+ check_stack_aligned(sp);
}