diff options
| author | Jan Engelmohr <jan.engelmohr@mailbox.tu-dresden.de> | 2016-07-26 15:25:59 +0200 |
|---|---|---|
| committer | Moyster <oysterized@gmail.com> | 2016-08-26 15:52:24 +0200 |
| commit | 516480c70a5392533c2e3a81863ac02206a66e1b (patch) | |
| tree | c22efa9678c72859bd4f47c40d40e57139fa8131 /kernel | |
| parent | 08b83025dbff0cf59c6de550262999b3959067b2 (diff) | |
3.10.66 -> 3.10.67
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/time.c | 4 | ||||
| -rw-r--r-- | kernel/time/ntp.c | 7 |
2 files changed, 11 insertions, 0 deletions
diff --git a/kernel/time.c b/kernel/time.c index b0f7b1d49..5d4d9a024 100644 --- a/kernel/time.c +++ b/kernel/time.c @@ -198,6 +198,10 @@ 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; } diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c index af8d1d4f3..28db9bedc 100644 --- a/kernel/time/ntp.c +++ b/kernel/time/ntp.c @@ -631,6 +631,13 @@ 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; } |