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-rw-r--r--arch/x86/lib/usercopy_64.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/lib/usercopy_64.c b/arch/x86/lib/usercopy_64.c
index ec13cb5f17ed..b7c2849ffb66 100644
--- a/arch/x86/lib/usercopy_64.c
+++ b/arch/x86/lib/usercopy_64.c
@@ -127,7 +127,7 @@ EXPORT_SYMBOL(__strnlen_user);
long strnlen_user(const char __user *s, long n)
{
- if (!access_ok(VERIFY_READ, s, n))
+ if (!access_ok(VERIFY_READ, s, 1))
return 0;
return __strnlen_user(s, n);
}