diff options
| author | Mike Travis <travis@sgi.com> | 2009-01-01 02:34:16 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-01-03 18:53:31 +0100 |
| commit | 7eb19553369c46cc1fa64caf120cbcab1b597f7c (patch) | |
| tree | ef1a3beae706b9497c845d0a2557ceb4d2754998 /mm/migrate.c | |
| parent | x86: mark get_cpu_leaves() with __cpuinit annotation (diff) | |
| parent | cpumask: CONFIG_DISABLE_OBSOLETE_CPUMASK_FUNCTIONS (diff) | |
| download | linux-7eb19553369c46cc1fa64caf120cbcab1b597f7c.tar.xz linux-7eb19553369c46cc1fa64caf120cbcab1b597f7c.zip | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask into merge-rr-cpumask
Conflicts:
arch/x86/kernel/io_apic.c
kernel/rcuclassic.c
kernel/sched.c
kernel/time/tick-sched.c
Signed-off-by: Mike Travis <travis@sgi.com>
[ mingo@elte.hu: backmerged typo fix for io_apic.c ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'mm/migrate.c')
| -rw-r--r-- | mm/migrate.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/mm/migrate.c b/mm/migrate.c index 037b0967c1e3..21631ab8c08b 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -1075,6 +1075,7 @@ asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages, const int __user *nodes, int __user *status, int flags) { + const struct cred *cred = current_cred(), *tcred; struct task_struct *task; struct mm_struct *mm; int err; @@ -1105,12 +1106,16 @@ asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages, * capabilities, superuser privileges or the same * userid as the target process. */ - if ((current->euid != task->suid) && (current->euid != task->uid) && - (current->uid != task->suid) && (current->uid != task->uid) && + rcu_read_lock(); + tcred = __task_cred(task); + if (cred->euid != tcred->suid && cred->euid != tcred->uid && + cred->uid != tcred->suid && cred->uid != tcred->uid && !capable(CAP_SYS_NICE)) { + rcu_read_unlock(); err = -EPERM; goto out; } + rcu_read_unlock(); err = security_task_movememory(task); if (err) |