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authorDavid S. Miller <davem@davemloft.net>2015-01-27 16:59:56 -0800
committerDavid S. Miller <davem@davemloft.net>2015-01-27 16:59:56 -0800
commit95f873f2fff96c592c5d863e2a39825bd8bf0500 (patch)
tree0d2dd664964ba2c701aefea5b4d1e85b481045e1 /kernel/time
parent8ea65f4a2dfaaf494ef42a16cbf2fea39b07450f (diff)
parent59343cd7c4809cf7598789e1cd14563780ae4239 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts: arch/arm/boot/dts/imx6sx-sdb.dts net/sched/cls_bpf.c Two simple sets of overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'kernel/time')
-rw-r--r--kernel/time/ntp.c7
-rw-r--r--kernel/time/time.c4
2 files changed, 11 insertions, 0 deletions
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index 87a346fd6d6..28bf91c60a0 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -633,6 +633,13 @@ int ntp_validate_timex(struct timex *txc)
if ((txc->modes & ADJ_SETOFFSET) && (!capable(CAP_SYS_TIME)))
return -EPERM;
+ if (txc->modes & ADJ_FREQUENCY) {
+ if (LONG_MIN / PPM_SCALE > txc->freq)
+ return -EINVAL;
+ if (LONG_MAX / PPM_SCALE < txc->freq)
+ return -EINVAL;
+ }
+
return 0;
}
diff --git a/kernel/time/time.c b/kernel/time/time.c
index 6390517e77d..2c85b7724af 100644
--- a/kernel/time/time.c
+++ b/kernel/time/time.c
@@ -196,6 +196,10 @@ SYSCALL_DEFINE2(settimeofday, struct timeval __user *, tv,
if (tv) {
if (copy_from_user(&user_tv, tv, sizeof(*tv)))
return -EFAULT;
+
+ if (!timeval_valid(&user_tv))
+ return -EINVAL;
+
new_ts.tv_sec = user_tv.tv_sec;
new_ts.tv_nsec = user_tv.tv_usec * NSEC_PER_USEC;
}