diff options
Diffstat (limited to 'arch')
-rw-r--r-- | arch/sparc/kernel/sys_sparc.c | 10 | ||||
-rw-r--r-- | arch/sparc64/kernel/sys_sparc.c | 10 |
2 files changed, 12 insertions, 8 deletions
diff --git a/arch/sparc/kernel/sys_sparc.c b/arch/sparc/kernel/sys_sparc.c index 94ff58c9d4a9..896863fb208a 100644 --- a/arch/sparc/kernel/sys_sparc.c +++ b/arch/sparc/kernel/sys_sparc.c | |||
@@ -470,19 +470,21 @@ asmlinkage int sys_getdomainname(char __user *name, int len) | |||
470 | { | 470 | { |
471 | int nlen, err; | 471 | int nlen, err; |
472 | 472 | ||
473 | if (len < 0 || len > __NEW_UTS_LEN) | 473 | if (len < 0) |
474 | return -EINVAL; | 474 | return -EINVAL; |
475 | 475 | ||
476 | down_read(&uts_sem); | 476 | down_read(&uts_sem); |
477 | 477 | ||
478 | nlen = strlen(system_utsname.domainname) + 1; | 478 | nlen = strlen(system_utsname.domainname) + 1; |
479 | if (nlen < len) | 479 | err = -EINVAL; |
480 | len = nlen; | 480 | if (nlen > len) |
481 | goto out; | ||
481 | 482 | ||
482 | err = -EFAULT; | 483 | err = -EFAULT; |
483 | if (!copy_to_user(name, system_utsname.domainname, len)) | 484 | if (!copy_to_user(name, system_utsname.domainname, nlen)) |
484 | err = 0; | 485 | err = 0; |
485 | 486 | ||
487 | out: | ||
486 | up_read(&uts_sem); | 488 | up_read(&uts_sem); |
487 | return err; | 489 | return err; |
488 | } | 490 | } |
diff --git a/arch/sparc64/kernel/sys_sparc.c b/arch/sparc64/kernel/sys_sparc.c index bf5f14ee73de..c608c947e6c3 100644 --- a/arch/sparc64/kernel/sys_sparc.c +++ b/arch/sparc64/kernel/sys_sparc.c | |||
@@ -707,19 +707,21 @@ asmlinkage long sys_getdomainname(char __user *name, int len) | |||
707 | { | 707 | { |
708 | int nlen, err; | 708 | int nlen, err; |
709 | 709 | ||
710 | if (len < 0 || len > __NEW_UTS_LEN) | 710 | if (len < 0) |
711 | return -EINVAL; | 711 | return -EINVAL; |
712 | 712 | ||
713 | down_read(&uts_sem); | 713 | down_read(&uts_sem); |
714 | 714 | ||
715 | nlen = strlen(system_utsname.domainname) + 1; | 715 | nlen = strlen(system_utsname.domainname) + 1; |
716 | if (nlen < len) | 716 | err = -EINVAL; |
717 | len = nlen; | 717 | if (nlen > len) |
718 | goto out; | ||
718 | 719 | ||
719 | err = -EFAULT; | 720 | err = -EFAULT; |
720 | if (!copy_to_user(name, system_utsname.domainname, len)) | 721 | if (!copy_to_user(name, system_utsname.domainname, nlen)) |
721 | err = 0; | 722 | err = 0; |
722 | 723 | ||
724 | out: | ||
723 | up_read(&uts_sem); | 725 | up_read(&uts_sem); |
724 | return err; | 726 | return err; |
725 | } | 727 | } |