Hi Linus,
A single quite small patch that managed to get overlooked earlier, to
prevent a user space triggerable oops on systems without HPET.
The following changes since commit 4b660a7f5c8099d88d1a43d8ae138965112592c7:
Linux 3.15-rc6 (2014-05-22 06:42:02 +0900)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86-urgent-for-linus
for you to fetch changes up to 368b69a5b010cb00fc9ea04d588cff69af1a1359:
x86, vdso: Fix an OOPS accessing the HPET mapping w/o an HPET (2014-05-21
16:14:04 -0700)
----------------------------------------------------------------
Andy Lutomirski (1):
x86, vdso: Fix an OOPS accessing the HPET mapping w/o an HPET
arch/x86/vdso/vdso32-setup.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c
index e1f220e..310c5f0 100644
--- a/arch/x86/vdso/vdso32-setup.c
+++ b/arch/x86/vdso/vdso32-setup.c
@@ -155,6 +155,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm,
int uses_interp)
unsigned long addr;
int ret = 0;
struct vm_area_struct *vma;
+ static struct page *no_pages[] = {NULL};
#ifdef CONFIG_X86_X32_ABI
if (test_thread_flag(TIF_X32))
@@ -193,7 +194,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm,
int uses_interp)
addr - VDSO_OFFSET(VDSO_PREV_PAGES),
VDSO_OFFSET(VDSO_PREV_PAGES),
VM_READ,
- NULL);
+ no_pages);
if (IS_ERR(vma)) {
ret = PTR_ERR(vma);
--
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