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x86/microcode/intel: Fix allocation size of struct ucode_patch
author
Junichi Nomura
<j-nomura@ce.jp.nec.com>
Mon, 9 Jan 2017 11:41:46 +0000
(12:41 +0100)
committer
Thomas Gleixner
<tglx@linutronix.de>
Mon, 9 Jan 2017 22:11:14 +0000
(23:11 +0100)
We allocate struct ucode_patch here. @size is the size of microcode data
and used for kmemdup() later in this function.
Fixes:
06b8534cb728
("x86/microcode: Rework microcode loading")
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link:
http://lkml.kernel.org/r/7a730dc9-ac17-35c4-fe76-dfc94e5ecd95@ce.jp.nec.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
arch/x86/kernel/cpu/microcode/intel.c
patch
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diff --git
a/arch/x86/kernel/cpu/microcode/intel.c
b/arch/x86/kernel/cpu/microcode/intel.c
index
faec8fa
..
9434865
100644
(file)
--- a/
arch/x86/kernel/cpu/microcode/intel.c
+++ b/
arch/x86/kernel/cpu/microcode/intel.c
@@
-150,7
+150,7
@@
static struct ucode_patch *__alloc_microcode_buf(void *data, unsigned int size)
{
struct ucode_patch *p;
- p = kzalloc(size, GFP_KERNEL);
+ p = kzalloc(size
of(struct ucode_patch)
, GFP_KERNEL);
if (!p)
return ERR_PTR(-ENOMEM);