diff options
Diffstat (limited to 'drivers/char/mem.c')
| -rw-r--r-- | drivers/char/mem.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/char/mem.c b/drivers/char/mem.c index 9eb564c002f6..43dd0891ca1e 100644 --- a/drivers/char/mem.c +++ b/drivers/char/mem.c @@ -29,8 +29,8 @@ #include <linux/export.h> #include <linux/io.h> #include <linux/uio.h> - #include <linux/uaccess.h> +#include <linux/security.h> #ifdef CONFIG_IA64 # include <linux/efi.h> @@ -807,7 +807,10 @@ static loff_t memory_lseek(struct file *file, loff_t offset, int orig) static int open_port(struct inode *inode, struct file *filp) { - return capable(CAP_SYS_RAWIO) ? 0 : -EPERM; + if (!capable(CAP_SYS_RAWIO)) + return -EPERM; + + return security_locked_down(LOCKDOWN_DEV_MEM); } #define zero_lseek null_lseek |