From b14ed2c273f8ab872ae4e6735fe5ab09cb14b8c3 Mon Sep 17 00:00:00 2001 From: Richard Weinberger Date: Mon, 2 Jun 2014 22:38:34 +0200 Subject: [PATCH] sched: Fix sched_policy < 0 comparison attr.sched_policy is u32, therefore a comparison against < 0 is never true. Fix this by casting sched_policy to int. This issue was reported by coverity CID 1219934. Fixes: dbdb22754fde ("sched: Disallow sched_attr::sched_policy < 0") Signed-off-by: Richard Weinberger Signed-off-by: Peter Zijlstra Cc: Michael Kerrisk Cc: Linus Torvalds Link: http://lkml.kernel.org/r/1401741514-7045-1-git-send-email-richard@nod.at Signed-off-by: Ingo Molnar --- kernel/sched/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 86f3890..540542b 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -3685,7 +3685,7 @@ SYSCALL_DEFINE3(sched_setattr, pid_t, pid, struct sched_attr __user *, uattr, if (retval) return retval; - if (attr.sched_policy < 0) + if ((int)attr.sched_policy < 0) return -EINVAL; rcu_read_lock(); -- 1.9.1