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[PATCH] x86_64: Remove unprotected iret
authorJan Beulich <jbeulich@novell.com>
Wed, 11 Jan 2006 21:42:20 +0000 (22:42 +0100)
committerLinus Torvalds <torvalds@g5.osdl.org>
Thu, 12 Jan 2006 03:01:10 +0000 (19:01 -0800)
Make sure no iret can fault without attached recovery code.
Cannot happen in the normal case, but might be useful
with kernel debuggers

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
arch/x86_64/kernel/entry.S patch | blob | history

diff --git a/arch/x86_64/kernel/entry.S b/arch/x86_64/kernel/entry.S
index 9ff4204..bd21eba 100644 (file)
--- a/arch/x86_64/kernel/entry.S
+++ b/arch/x86_64/kernel/entry.S
@@ -754,7 +754,7 @@ error_exit:
        jnz  retint_careful
        swapgs 
        RESTORE_ARGS 0,8,0                                              
-       iretq
+       jmp iret_label
        CFI_ENDPROC
 
 error_kernelspace:
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