d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Similarly to r301505 protect the removal of the ifa from the if_addrhead

Browse Source 
by a lock (as well as the check that the list is not empty).

Obtained from:	projects/vnet
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
This commit is contained in:
Bjoern A. Zeeb 2016-06-06 16:23:02 +00:00
parent b67565942b
commit d117fd8003
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=301514
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
sys/net/if.c
View File

@ -1007,11 +1007,14 @@ if_detach_internal(struct ifnet *ifp, int vmove, struct if_clone **ifcp)
ifp->if_addr = NULL;
/* We can now free link ifaddr. */
IF_ADDR_WLOCK(ifp);
if (!TAILQ_EMPTY(&ifp->if_addrhead)) {
ifa = TAILQ_FIRST(&ifp->if_addrhead);
TAILQ_REMOVE(&ifp->if_addrhead, ifa, ifa_link);
IF_ADDR_WUNLOCK(ifp);
ifa_free(ifa);
}
} else
IF_ADDR_WUNLOCK(ifp);
}
rt_flushifroutes(ifp);