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Diffstat (limited to 'kernel/sys.c')
-rw-r--r--kernel/sys.c25
1 files changed, 13 insertions, 12 deletions
diff --git a/kernel/sys.c b/kernel/sys.c
index 462d78d5589..f64e97cabe2 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -25,6 +25,7 @@
#include <linux/dcookies.h>
#include <linux/suspend.h>
#include <linux/tty.h>
+#include <linux/signal.h>
#include <linux/compat.h>
#include <linux/syscalls.h>
@@ -227,7 +228,7 @@ static int set_one_prio(struct task_struct *p, int niceval, int error)
error = -EPERM;
goto out;
}
- if (niceval < task_nice(p) && !capable(CAP_SYS_NICE)) {
+ if (niceval < task_nice(p) && !can_nice(p, niceval)) {
error = -EACCES;
goto out;
}
@@ -525,7 +526,7 @@ asmlinkage long sys_setregid(gid_t rgid, gid_t egid)
if (new_egid != old_egid)
{
current->mm->dumpable = 0;
- wmb();
+ smp_wmb();
}
if (rgid != (gid_t) -1 ||
(egid != (gid_t) -1 && egid != old_rgid))
@@ -556,7 +557,7 @@ asmlinkage long sys_setgid(gid_t gid)
if(old_egid != gid)
{
current->mm->dumpable=0;
- wmb();
+ smp_wmb();
}
current->gid = current->egid = current->sgid = current->fsgid = gid;
}
@@ -565,7 +566,7 @@ asmlinkage long sys_setgid(gid_t gid)
if(old_egid != gid)
{
current->mm->dumpable=0;
- wmb();
+ smp_wmb();
}
current->egid = current->fsgid = gid;
}
@@ -596,7 +597,7 @@ static int set_user(uid_t new_ruid, int dumpclear)
if(dumpclear)
{
current->mm->dumpable = 0;
- wmb();
+ smp_wmb();
}
current->uid = new_ruid;
return 0;
@@ -653,7 +654,7 @@ asmlinkage long sys_setreuid(uid_t ruid, uid_t euid)
if (new_euid != old_euid)
{
current->mm->dumpable=0;
- wmb();
+ smp_wmb();
}
current->fsuid = current->euid = new_euid;
if (ruid != (uid_t) -1 ||
@@ -703,7 +704,7 @@ asmlinkage long sys_setuid(uid_t uid)
if (old_euid != uid)
{
current->mm->dumpable = 0;
- wmb();
+ smp_wmb();
}
current->fsuid = current->euid = uid;
current->suid = new_suid;
@@ -748,7 +749,7 @@ asmlinkage long sys_setresuid(uid_t ruid, uid_t euid, uid_t suid)
if (euid != current->euid)
{
current->mm->dumpable = 0;
- wmb();
+ smp_wmb();
}
current->euid = euid;
}
@@ -798,7 +799,7 @@ asmlinkage long sys_setresgid(gid_t rgid, gid_t egid, gid_t sgid)
if (egid != current->egid)
{
current->mm->dumpable = 0;
- wmb();
+ smp_wmb();
}
current->egid = egid;
}
@@ -845,7 +846,7 @@ asmlinkage long sys_setfsuid(uid_t uid)
if (uid != old_fsuid)
{
current->mm->dumpable = 0;
- wmb();
+ smp_wmb();
}
current->fsuid = uid;
}
@@ -875,7 +876,7 @@ asmlinkage long sys_setfsgid(gid_t gid)
if (gid != old_fsgid)
{
current->mm->dumpable = 0;
- wmb();
+ smp_wmb();
}
current->fsgid = gid;
key_fsgid_changed(current);
@@ -1637,7 +1638,7 @@ asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
switch (option) {
case PR_SET_PDEATHSIG:
sig = arg2;
- if (sig < 0 || sig > _NSIG) {
+ if (!valid_signal(sig)) {
error = -EINVAL;
break;
}