[patch 1/3] x86/traps: Disable interrupts in exc_aligment_check()

[Thomas Gleixner]

exc_alignment_check() fails to disable interrupts before returning to the
entry code.

Fixes: ca4c6a9858c2 ("x86/traps: Make interrupt enable/disable symmetric in C 
code")
Reported-by: syzbot+0889df9502bc0f112...@syzkaller.appspotmail.com
Signed-off-by: Thomas Gleixner <t...@linutronix.de>
---
 arch/x86/kernel/traps.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -303,6 +303,8 @@ DEFINE_IDTENTRY_ERRORCODE(exc_alignment_
 
        do_trap(X86_TRAP_AC, SIGBUS, "alignment check", regs,
                error_code, BUS_ADRALN, NULL);
+
+       local_irq_disable();
 }
 
 #ifdef CONFIG_VMAP_STACK