1 files changed, 3 insertions, 0 deletions

diff --git a/include/asm-x86_64/desc.h b/include/asm-x86_64/desc.h
index b837820c9073..33764869387b 100644
--- a/include/asm-x86_64/desc.h
+++ b/include/asm-x86_64/desc.h
@@ -98,16 +98,19 @@ static inline void _set_gate(void *adr, unsigned type, unsigned long func, unsig
 
 static inline void set_intr_gate(int nr, void *func) 
 { 
+        BUG_ON((unsigned)nr > 0xFF);
         _set_gate(&idt_table[nr], GATE_INTERRUPT, (unsigned long) func, 0, 0); 
 } 
 
 static inline void set_intr_gate_ist(int nr, void *func, unsigned ist) 
 { 
+        BUG_ON((unsigned)nr > 0xFF);
         _set_gate(&idt_table[nr], GATE_INTERRUPT, (unsigned long) func, 0, ist); 
 } 
 
 static inline void set_system_gate(int nr, void *func) 
 { 
+        BUG_ON((unsigned)nr > 0xFF);
         _set_gate(&idt_table[nr], GATE_INTERRUPT, (unsigned long) func, 3, 0); 
 }