On Tue, Dec 21, 2021 at 5:50 PM Stephen Hemminger <stephen@xxxxxxxxxxxxxxxxxx> wrote: > > Looks like changes to SCTP events create kernel ABI breakage in applications. > > If application is compiled with new header but attempts to run on older kernel, it doesn't work: > > Reported here: https://osmocom.org/issues/5366 > > Looks like bad design assumptions about how setsockopt here: > static int sctp_setsockopt_events(struct sock *sk, __u8 *sn_type, > unsigned int optlen) > { > struct sctp_sock *sp = sctp_sk(sk); > struct sctp_association *asoc; > int i; > > if (optlen > sizeof(struct sctp_event_subscribe)) > return -EINVAL; > > Because of that the commits that add new events cause code built with the new > header to not run on older kernels. Hi, Stephen, This is a known issue, and we're sorry that this can not be fixed. please see: https://lore.kernel.org/netdev/20200501131607.GU1294372@nataraja/ Thanks.
