Hi As various GPS module designs done over the last decade or so have shown, you *can* fix this at the module level. Yes, each of those fixes has its drawbacks. However, the modern designs are a lot less likely to “die” 10 or 20 years from now.
….. and to address the inevitable follow up question: The receiver can “save” the last date it saw. That becomes the “never before” date. If this is enabled and the receiver gets a spoofed date, that’s a problem. You can manually enter a “never before” date. That works fine, except for the “manual” part…. Anything that can be done manually could also be done under the control of the driver. That opens a hacking path. There are a *lot* of things that could brick a receiver if the driver is hacked so this is hardly unique in that regard. Bob > On Oct 22, 2021, at 1:22 PM, Magnus Danielson via time-nuts > <time-nuts@lists.febo.com> wrote: > > Hi, > > On 2021-10-22 17:58, Kevin Rowett wrote: >> For those using GPSD (https://gpsd.gitlab.io/gpsd/index.html >> <https://gpsd.gitlab.io/gpsd/index.html>) to read GPS receivers, and get the >> GPS time, there is a bug that could cause problems on Oct 24th. >> >> >> https://us-cert.cisa.gov/ncas/current-activity/2021/10/21/gps-daemon-gpsd-rollover-bug >> >> <https://us-cert.cisa.gov/ncas/current-activity/2021/10/21/gps-daemon-gpsd-rollover-bug> > > I find it amusing, as this was discussed on ntp-questions email-list in mid > August 2013, and clearly explained with due references. It seems that people > did not act. There was a misconception that this was a "receiver error" for > which they should not do any fixes. It's actually a systemflaw that never was > fixed in L1 C/A code. It would have been good if they added additional > GPS-weeks bits in that signal, but it never materialized. It did for other > newer signals. > > It seems nothing happen in those 8 years until the patching this year. > > Cheers, > Magnus > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an > email to time-nuts-le...@lists.febo.com > To unsubscribe, go to and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.
