From: Greg KH on
2.6.34-stable review patch. If anyone has any objections, please let me know.


From: Anfei <anfei.zhou(a)>

commit 5e27fb78df95e027723af2c90ecc9b4527ae59e9 upstream.

Instruction faults on pre-ARMv6 CPUs are interpreted as
a 'translation fault', but do_translation_fault doesn't
handle well if user mode trying to run instruction above
TASK_SIZE, and result in the infinite retry of that

Signed-off-by: Anfei Zhou <anfei.zhou(a)>
Signed-off-by: Russell King <rmk+kernel(a)>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)>

arch/arm/mm/fault.c | 3 +++
1 file changed, 3 insertions(+)

--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -393,6 +393,9 @@ do_translation_fault(unsigned long addr,
if (addr < TASK_SIZE)
return do_page_fault(addr, fsr, regs);

+ if (user_mode(regs))
+ goto bad_area;
index = pgd_index(addr);


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