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-rw-r--r--kernel/time/timekeeping.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 8e4b3c32fcf9..f72b9f1de178 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -23,6 +23,7 @@
#include <linux/pvclock_gtod.h>
#include <linux/compiler.h>
#include <linux/audit.h>
+#include <linux/random.h>
#include "tick-internal.h"
#include "ntp_internal.h"
@@ -1343,8 +1344,10 @@ out:
/* Signal hrtimers about time change */
clock_was_set(CLOCK_SET_WALL);
- if (!ret)
+ if (!ret) {
audit_tk_injoffset(ts_delta);
+ add_device_randomness(ts, sizeof(*ts));
+ }
return ret;
}
@@ -2430,6 +2433,7 @@ int do_adjtimex(struct __kernel_timex *txc)
ret = timekeeping_validate_timex(txc);
if (ret)
return ret;
+ add_device_randomness(txc, sizeof(*txc));
if (txc->modes & ADJ_SETOFFSET) {
struct timespec64 delta;
@@ -2447,6 +2451,7 @@ int do_adjtimex(struct __kernel_timex *txc)
audit_ntp_init(&ad);
ktime_get_real_ts64(&ts);
+ add_device_randomness(&ts, sizeof(ts));
raw_spin_lock_irqsave(&timekeeper_lock, flags);
write_seqcount_begin(&tk_core.seq);