3.16.35-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Helge Deller <deller@xxxxxx> commit ef72f3110d8b19f4c098a0bff7ed7d11945e70c6 upstream. The kernel module testcase (lib/test_user_copy.c) exhibited a kernel crash on parisc if the parameters for copy_from_user were reversed ("illegal reversed copy_to_user" testcase). Fix this potential crash by checking the fault handler if the faulting address is in the exception table. Signed-off-by: Helge Deller <deller@xxxxxx> Cc: Kees Cook <keescook@xxxxxxxxxxxx> Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx> --- arch/parisc/kernel/traps.c | 3 +++ 1 file changed, 3 insertions(+) --- a/arch/parisc/kernel/traps.c +++ b/arch/parisc/kernel/traps.c @@ -802,6 +802,9 @@ void notrace handle_interruption(int cod if (fault_space == 0 && !in_atomic()) { + /* Clean up and return if in exception table. */ + if (fixup_exception(regs)) + return; pdc_chassis_send_status(PDC_CHASSIS_DIRECT_PANIC); parisc_terminate("Kernel Fault", regs, code, fault_address); } -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html