Messages in this thread | | | Date | Fri, 9 Oct 2015 12:47:12 +0200 | From | Miroslav Lichvar <> | Subject | Re: [PATCH] timekeeping: Limit system time to prevent 32-bit time_t overflow |
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On Fri, Oct 09, 2015 at 12:38:32PM +0200, Thomas Gleixner wrote: > On Fri, 9 Oct 2015, Miroslav Lichvar wrote: > > Do you feel the same about preventing the time from reaching > > KTIME_MAX? > > That's going to happen in ~500 years from now.
At any time if you include accidents and attacks on services with the CAP_SYS_TIME capability (e.g. NTP/PTP implementations). Even with 32-bit time_t you are not safe, the time can be set forward by any amount with multiple adjtimex(ADJ_SETOFFSET) calls.
-- Miroslav Lichvar
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