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Merge tag 'nds32-for-linus-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux-2.6-microblaze.git]
/
arch
/
x86
/
kernel
/
cpu
/
mtrr
/
if.c
diff --git
a/arch/x86/kernel/cpu/mtrr/if.c
b/arch/x86/kernel/cpu/mtrr/if.c
index
4021d38
..
40eee6c
100644
(file)
--- a/
arch/x86/kernel/cpu/mtrr/if.c
+++ b/
arch/x86/kernel/cpu/mtrr/if.c
@@
-106,7
+106,8
@@
mtrr_write(struct file *file, const char __user *buf, size_t len, loff_t * ppos)
memset(line, 0, LINE_SIZE);
- length = strncpy_from_user(line, buf, LINE_SIZE - 1);
+ len = min_t(size_t, len, LINE_SIZE - 1);
+ length = strncpy_from_user(line, buf, len);
if (length < 0)
return length;