diff options
| -rw-r--r-- | include/asm-x86/desc.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/asm-x86/desc.h b/include/asm-x86/desc.h index 24a524f5e1a2..06f786f4b4fb 100644 --- a/include/asm-x86/desc.h +++ b/include/asm-x86/desc.h @@ -24,6 +24,11 @@ static inline void fill_ldt(struct desc_struct *desc, desc->d = info->seg_32bit; desc->g = info->limit_in_pages; desc->base2 = (info->base_addr & 0xff000000) >> 24; + /* + * Don't allow setting of the lm bit. It is useless anyway + * because 64bit system calls require __USER_CS: + */ + desc->l = 0; } extern struct desc_ptr idt_descr; |