Re: [PATCH] vsprintf: Do not break early boot with probing addresses
- From
- Steven Rostedt <rostedt@goodmis.org>
- Date
- 2019-05-10 16:24:07
- Also in
- linux-arch, linux-s390, lkml
- Reply to
- Petr Mladek, 2019-05-10
On Fri, 10 May 2019 10:42:13 +0200 Petr Mladek [off-list ref] wrote:
quoted hunk ↗ jump to hunk
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 ? -- Steve