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authorKees Cook <keescook@chromium.org>2013-07-03 15:04:58 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-03 16:07:41 -0700
commitf170168b9a0b61ea1e647b082b38f605f1d3de3e (patch)
tree4381c129ee9af108e368e6c8255df53cbe233257 /kernel
parentd8537548c924db3c44afde7646b6e220c7beb79d (diff)
drivers: avoid parsing names as kthread_run() format strings
Calling kthread_run with a single name parameter causes it to be handled as a format string. Many callers are passing potentially dynamic string content, so use "%s" in those cases to avoid any potential accidents. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/rcutree.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index cf3adc6fe001..e08abb9461ac 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -3026,7 +3026,7 @@ static int __init rcu_spawn_gp_kthread(void)
struct task_struct *t;
for_each_rcu_flavor(rsp) {
- t = kthread_run(rcu_gp_kthread, rsp, rsp->name);
+ t = kthread_run(rcu_gp_kthread, rsp, "%s", rsp->name);
BUG_ON(IS_ERR(t));
rnp = rcu_get_root(rsp);
raw_spin_lock_irqsave(&rnp->lock, flags);