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[PATCH 4/5] x86/microcode/intel: Fix allocation size of struct ucode_patch

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  [PATCH 4/5] x86/microcode/intel: Fix allocation size of struct ucode_patch Borislav Petkov <bp@alien8.de> - 2017-01-09 12:50 +0100

#1554241 — [PATCH 4/5] x86/microcode/intel: Fix allocation size of struct ucode_patch

From: Junichi Nomura <j-nomura@ce.jp.nec.com>

We allocate struct ucode_patch here. @size is the size of microcode data
and used for kmemdup() later in this function.

Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Fixes: 06b8534cb728 ("x86/microcode: Rework microcode loading")
Link: http://lkml.kernel.org/r/7a730dc9-ac17-35c4-fe76-dfc94e5ecd95@ce.jp.nec.com
Signed-off-by: Borislav Petkov <bp@suse.de>
---
 arch/x86/kernel/cpu/microcode/intel.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/microcode/intel.c b/arch/x86/kernel/cpu/microcode/intel.c
index faec8fa68ffd..943486589757 100644
--- 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(sizeof(struct ucode_patch), GFP_KERNEL);
 	if (!p)
 		return ERR_PTR(-ENOMEM);
 
-- 
2.11.0

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