diff options
| author | Alex Shi <alex.shi@linaro.org> | 2016-09-20 10:17:00 +0800 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2016-09-20 10:17:00 +0800 |
| commit | d2d693d1ba7d93ec7c5db8aca2da29a4c91f6782 (patch) | |
| tree | 41920dcc166c491e7192eb1e3ba3861dff479abf /kernel/time/ntp.c | |
| parent | 573787341e57a73bf027c2ea3bdf18dc298ae0a0 (diff) | |
| parent | 1d074db69c46d62ce82b331c2080e2fcb710bf4a (diff) | |
Merge remote-tracking branch 'lts/linux-4.4.y' into linux-linaro-lsk-v4.4
Conflicts:
set ARM64_WORKAROUND_CAVIUM_27456 to 12 in
arch/arm64/include/asm/cpufeature.h
and add asm/memory.h in arch/arm64/kernel/entry.S
Diffstat (limited to 'kernel/time/ntp.c')
| -rw-r--r-- | kernel/time/ntp.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c index 149cc8086aea..ab861771e37f 100644 --- a/kernel/time/ntp.c +++ b/kernel/time/ntp.c @@ -674,8 +674,24 @@ int ntp_validate_timex(struct timex *txc) return -EINVAL; } - if ((txc->modes & ADJ_SETOFFSET) && (!capable(CAP_SYS_TIME))) - return -EPERM; + if (txc->modes & ADJ_SETOFFSET) { + /* In order to inject time, you gotta be super-user! */ + if (!capable(CAP_SYS_TIME)) + return -EPERM; + + if (txc->modes & ADJ_NANO) { + struct timespec ts; + + ts.tv_sec = txc->time.tv_sec; + ts.tv_nsec = txc->time.tv_usec; + if (!timespec_inject_offset_valid(&ts)) + return -EINVAL; + + } else { + if (!timeval_inject_offset_valid(&txc->time)) + return -EINVAL; + } + } /* * Check for potential multiplication overflows that can |