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authorLinus Torvalds <torvalds@linux-foundation.org>2009-12-19 09:47:34 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-19 09:47:34 -0800
commit10e5453ffa0d04a2eda3cda3f55b88cb9c04595f (patch)
treedef247dc399549bc1359fe9d1faa49c621f8890d /kernel/sys.c
parent3cd312c3e887b4bee2d94668a481b3d19c07732c (diff)
parentd4581a239a40319205762b76c01eb6363f277efa (diff)
Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sys: Fix missing rcu protection for __task_cred() access signals: Fix more rcu assumptions signal: Fix racy access to __task_cred in kill_pid_info_as_uid()
Diffstat (limited to 'kernel/sys.c')
-rw-r--r--kernel/sys.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/sys.c b/kernel/sys.c
index 20ccfb5da6a..26a6b73a6b8 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -162,6 +162,7 @@ SYSCALL_DEFINE3(setpriority, int, which, int, who, int, niceval)
if (niceval > 19)
niceval = 19;
+ rcu_read_lock();
read_lock(&tasklist_lock);
switch (which) {
case PRIO_PROCESS:
@@ -199,6 +200,7 @@ SYSCALL_DEFINE3(setpriority, int, which, int, who, int, niceval)
}
out_unlock:
read_unlock(&tasklist_lock);
+ rcu_read_unlock();
out:
return error;
}