3.6-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <[email protected]>

commit 5b3900cd409466c0070b234d941650685ad0c791 upstream.

We fixed a bunch of integer overflows in timekeeping code during the 3.6
cycle.  I did an audit based on that and found this potential overflow.

Signed-off-by: Dan Carpenter <[email protected]>
Acked-by: John Stultz <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 kernel/time/timekeeping.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -1111,7 +1111,7 @@ static cycle_t logarithmic_accumulation(
        accumulate_nsecs_to_secs(tk);
 
        /* Accumulate raw time */
-       raw_nsecs = tk->raw_interval << shift;
+       raw_nsecs = (u64)tk->raw_interval << shift;
        raw_nsecs += tk->raw_time.tv_nsec;
        if (raw_nsecs >= NSEC_PER_SEC) {
                u64 raw_secs = raw_nsecs;


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Reply via email to