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| author |   Thomas Gleixner <tglx@linutronix.de> | 2016-07-13 17:01:34 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2016-07-13 17:01:51 +0200 |
| commit | 54f54496779661678d906b57e4cba48239ab7c9b (patch) | |
| tree | feb06330bfa37391a5502e8dc6dfdd58b46b56fb /fs | |
| parent | Linux 4.7-rc7 (diff) | |
| parent | clocksource/drivers/time-armada-370-xp: Fix return value check (diff) | |
| download | linux-dev-54f54496779661678d906b57e4cba48239ab7c9b.tar.xz linux-dev-54f54496779661678d906b57e4cba48239ab7c9b.zip | |
Merge branch 'timers/core' into smp/hotplug to pick up dependencies
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/timerfd.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/timerfd.c b/fs/timerfd.c index 053818dd6c18..9ae4abb4110b 100644 --- a/fs/timerfd.c +++ b/fs/timerfd.c @@ -390,6 +390,11 @@ SYSCALL_DEFINE2(timerfd_create, int, clockid, int, flags) clockid != CLOCK_BOOTTIME_ALARM)) return -EINVAL; + if (!capable(CAP_WAKE_ALARM) && + (clockid == CLOCK_REALTIME_ALARM || + clockid == CLOCK_BOOTTIME_ALARM)) + return -EPERM; + ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); if (!ctx) return -ENOMEM; @@ -433,6 +438,11 @@ static int do_timerfd_settime(int ufd, int flags, return ret; ctx = f.file->private_data; + if (!capable(CAP_WAKE_ALARM) && isalarm(ctx)) { + fdput(f); + return -EPERM; + } + timerfd_setup_cancel(ctx, flags); /* |