The branch main has been updated by afedorov:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=b27e6e91d0ad1f87b296f7583d4f5d938d7a997c

commit b27e6e91d0ad1f87b296f7583d4f5d938d7a997c
Author:     Aleksandr Fedorov <afedo...@freebsd.org>
AuthorDate: 2022-02-09 19:00:50 +0000
Commit:     Aleksandr Fedorov <afedo...@freebsd.org>
CommitDate: 2022-02-09 19:00:50 +0000

    ng pppoe(4): Add the required NET_EPOCH section to the hook
    disconnection function.
    
    Disconnecting hooks are called outside of NET_EPOCH, but
    ng_pppoe_disconnect() calls NG_SEND_DATA_ONLY() which should be called
    in NET_EPOCH.
    
    PR:     257067
    Reported by:    niels=free...@bakker.net
    Reviewed by:    vmaffione (mentor), glebius, donner
    Approved by:    vmaffione (mentor), glebius, donner
    Sponsored by:   vstack.com
    Differential Revision:  https://reviews.freebsd.org/D34185
---
 sys/netgraph/ng_pppoe.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sys/netgraph/ng_pppoe.c b/sys/netgraph/ng_pppoe.c
index a18d6a0498a7..8bc44e160044 100644
--- a/sys/netgraph/ng_pppoe.c
+++ b/sys/netgraph/ng_pppoe.c
@@ -2031,6 +2031,7 @@ ng_pppoe_disconnect(hook_p hook)
                                log(LOG_NOTICE, "ng_pppoe[%x]: session out of "
                                    "mbufs\n", node->nd_ID);
                        else {
+                               struct epoch_tracker et;
                                struct pppoe_full_hdr *wh;
                                struct pppoe_tag *tag;
                                int     msglen = strlen(SIGNOFF);
@@ -2061,8 +2062,11 @@ ng_pppoe_disconnect(hook_p hook)
                                m->m_pkthdr.len = m->m_len = sizeof(*wh) + 
sizeof(*tag) +
                                    msglen;
                                wh->ph.length = htons(sizeof(*tag) + msglen);
+
+                               NET_EPOCH_ENTER(et);
                                NG_SEND_DATA_ONLY(error,
                                        privp->ethernet_hook, m);
+                               NET_EPOCH_EXIT(et);
                        }
                }
                if (sp->state == PPPOE_LISTENING)

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