On Fri, May 10, 2019 at 12:24:01PM -0400, Steven Rostedt wrote:
On Fri, 10 May 2019 10:42:13 +0200
Petr Mladek [off-list ref] wrote:
quoted
static const char *check_pointer_msg(const void *ptr)
{
- char byte;
-
if (!ptr)
return "(null)";
- if (probe_kernel_address(ptr, byte))
+ if ((unsigned long)ptr < PAGE_SIZE || IS_ERR_VALUE(ptr))
return "(efault)";
< PAGE_SIZE ?
do you mean: < TASK_SIZE ?
Original code used PAGE_SIZE. If it needs to be changed, that it might be a
separate explanation / patch.
--
With Best Regards,
Andy Shevchenko