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.yegos...@imgtec.com>
---
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 @@
#ifdef CONFIG_CPU_MIPSR6
.Lcopy_unaligned_bytes\@:
+ beqz len, .Ldone\@
+ nop
1:
COPY_BYTE(0)
COPY_BYTE(1)
--
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