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From d77e639ab3d037d8a309b107452491b7ec4b887c Mon Sep 17 00:00:00 2001
From: Hugh Dickins <hughd@google.com>
Date: Mon, 4 Dec 2017 20:13:35 -0800
Subject: [PATCH 026/102] kaiser: fix unlikely error in alloc_ldt_struct()
An error from kaiser_add_mapping() here is not at all likely, but
Eric Biggers rightly points out that __free_ldt_struct() relies on
new_ldt->size being initialized: move that up.
Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/x86/kernel/ldt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
index 8331bad..536e6ab 100644
--- a/arch/x86/kernel/ldt.c
+++ b/arch/x86/kernel/ldt.c
@@ -78,11 +78,11 @@ static struct ldt_struct *alloc_ldt_struct(int size)
ret = kaiser_add_mapping((unsigned long)new_ldt->entries, alloc_size,
__PAGE_KERNEL);
+ new_ldt->size = size;
if (ret) {
__free_ldt_struct(new_ldt);
return NULL;
}
- new_ldt->size = size;
return new_ldt;
}
--
2.7.4
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