[PATCH] MIPS: R6: memcpy bugfix - zero length overwrites memory

From: Leonid Yegoshin
Date: Mon Apr 27 2015 - 19:35:43 EST

MIPS R6 version of memcpy has bug - then length to copy is zero
and addresses are not aligned then it can overwrite a whole memory.

Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@xxxxxxxxxx>
arch/mips/lib/memcpy.S | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/mips/lib/memcpy.S b/arch/mips/lib/memcpy.S
index 9245e1705e69..7e0250f3aec8 100644
--- a/arch/mips/lib/memcpy.S
+++ b/arch/mips/lib/memcpy.S
@@ -514,6 +514,8 @@

+ beqz len, .Ldone\@
+ nop

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