Quoting Marc-André Lureau (2015-07-05 09:28:58)
> It's possible to set system time with dates after 2070, however, it's
> not possible to set the RTC. It has limitation to up to year
> 2070 (1970+100). In order to keep both clock in sync and before the
> kernel complains on invalid values, bail out early.
>
> Signed-off-by: Marc-André Lureau <marcandre.lur...@redhat.com>
Applied, thanks.
> ---
> qga/commands-posix.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/qga/commands-posix.c b/qga/commands-posix.c
> index befd00b..d8847be 100644
> --- a/qga/commands-posix.c
> +++ b/qga/commands-posix.c
> @@ -154,6 +154,8 @@ void qmp_guest_set_time(bool has_time, int64_t time_ns,
> Error **errp)
>
> /* If user has passed a time, validate and set it. */
> if (has_time) {
> + GDate date = { 0, };
> +
> /* year-2038 will overflow in case time_t is 32bit */
> if (time_ns / 1000000000 != (time_t)(time_ns / 1000000000)) {
> error_setg(errp, "Time %" PRId64 " is too large", time_ns);
> @@ -162,6 +164,11 @@ void qmp_guest_set_time(bool has_time, int64_t time_ns,
> Error **errp)
>
> tv.tv_sec = time_ns / 1000000000;
> tv.tv_usec = (time_ns % 1000000000) / 1000;
> + g_date_set_time_t(&date, tv.tv_sec);
> + if (date.year < 1970 || date.year >= 2070) {
> + error_setg_errno(errp, errno, "Invalid time");
> + return;
> + }
>
> ret = settimeofday(&tv, NULL);
> if (ret < 0) {
> --
> 2.4.3
>
