ghash-x86_64.pl: fix length handling bug.

Thanks to Shay Gueron & Vlad Krasnov for report.

ghash-x86_64.pl: fix length handling bug.
Thanks to Shay Gueron & Vlad Krasnov for report.
28997596 · Andy Polyakov · bcb157f0 · 28997596
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Showing with 2 addition and 1 deletion

crypto/modes/asm/ghash-x86_64.pl crypto/modes/asm/ghash-x86_64.pl +2 -1

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--- a/crypto/modes/asm/ghash-x86_64.pl
+++ b/crypto/modes/asm/ghash-x86_64.pl
@@ -754,8 +754,9 @@ ___
 $code.=<<___;
 	add	\$0x40,$len
 	jz	.Ldone
-	sub	\$0x10,$len
 	movdqu	0x20($Htbl),$HK
+	sub	\$0x10,$len
+	jz	.Lodd_tail
 .Lskip4x:
 ___
 }