[PATCH 4.1 61/65] x86/ldt: fix crash in ldt freeing.

[Pavel Tatashin]

From: Jamie Iles <jamie.iles@xxxxxxxxxx>

94b1f3e2c4b7 (kaiser: merged update) factored out __free_ldt_struct() to
use vfree/free_page, but in the page allocation case it is actually
allocated with kmalloc so needs to be freed with kfree and not
free_page().

Reported-by: Vegard Nossum <vegard.nossum@xxxxxxxxxx>
Signed-off-by: Jamie Iles <jamie.iles@xxxxxxxxxx>
Signed-off-by: Pavel Tatashin <pasha.tatashin@xxxxxxxxxx>
---
 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 5797d437710d..5de9fbc4ab50 100644
--- a/arch/x86/kernel/ldt.c
+++ b/arch/x86/kernel/ldt.c
@@ -39,7 +39,7 @@ static void __free_ldt_struct(struct ldt_struct *ldt)
 	if (ldt->size * LDT_ENTRY_SIZE > PAGE_SIZE)
 		vfree(ldt->entries);
 	else
-		free_page((unsigned long)ldt->entries);
+		kfree(ldt->entries);
 	kfree(ldt);
 }
 
-- 
2.16.2