diff options
| -rw-r--r-- | arch/x86/mm/ioremap.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c index 62773abdf08..62def579573 100644 --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -87,6 +87,8 @@ bool __virt_addr_valid(unsigned long x) return false; if (__vmalloc_start_set && is_vmalloc_addr((void *) x)) return false; + if (x >= FIXADDR_START) + return false; return pfn_valid((x - PAGE_OFFSET) >> PAGE_SHIFT); } EXPORT_SYMBOL(__virt_addr_valid); |