diff options
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/mm/init_64.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 44b93da18401..a2340ee02f0b 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -778,6 +778,7 @@ void mark_rodata_ro(void) unsigned long text_end = PAGE_ALIGN((unsigned long) &__stop___ex_table); unsigned long rodata_end = PAGE_ALIGN((unsigned long) &__end_rodata); unsigned long data_start = (unsigned long) &_sdata; + unsigned long all_end = PFN_ALIGN(&_end); printk(KERN_INFO "Write protecting the kernel read-only data: %luk\n", (end - start) >> 10); @@ -786,10 +787,10 @@ void mark_rodata_ro(void) kernel_set_to_readonly = 1; /* - * The rodata section (but not the kernel text!) should also be - * not-executable. + * The rodata/data/bss/brk section (but not the kernel text!) + * should also be not-executable. */ - set_memory_nx(rodata_start, (end - rodata_start) >> PAGE_SHIFT); + set_memory_nx(rodata_start, (all_end - rodata_start) >> PAGE_SHIFT); rodata_test(); |