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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-11-06 15:42:44 +0100 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-11-15 10:56:14 +0100 |
| commit | e0b4edbdcc3558d3f38af8398f995c2e9f019f07 (patch) | |
| tree | ea91a5fcfb9b6a66a8c0b74cf68ff8d450ce17e0 /freebsd/sys/netinet6/in6_ifattach.c | |
| parent | Disable or make static kern_* functions (diff) | |
| download | rtems-libbsd-e0b4edbdcc3558d3f38af8398f995c2e9f019f07.tar.bz2 | |
Update to FreeBSD head 2018-11-15
Git mirror commit a18b0830c4be01b39489a891b63d6023ada6358a.
Update #3472.
Diffstat (limited to 'freebsd/sys/netinet6/in6_ifattach.c')
| -rw-r--r-- | freebsd/sys/netinet6/in6_ifattach.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/freebsd/sys/netinet6/in6_ifattach.c b/freebsd/sys/netinet6/in6_ifattach.c index 1cab31d1..6af4b557 100644 --- a/freebsd/sys/netinet6/in6_ifattach.c +++ b/freebsd/sys/netinet6/in6_ifattach.c @@ -487,9 +487,16 @@ in6_ifattach_linklocal(struct ifnet *ifp, struct ifnet *altifp) return (-1); } - ia = in6ifa_ifpforlinklocal(ifp, 0); /* ia must not be NULL */ - KASSERT(ia != NULL, ("%s: ia == NULL, ifp=%p", __func__, ifp)); - + ia = in6ifa_ifpforlinklocal(ifp, 0); + if (ia == NULL) { + /* + * Another thread removed the address that we just added. + * This should be rare, but it happens. + */ + nd6log((LOG_NOTICE, "%s: %s: new link-local address " + "disappeared\n", __func__, if_name(ifp))); + return (-1); + } ifa_free(&ia->ia_ifa); /* |