Similarly to r301505 protect the removal of the ifa from the if_addrhead
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
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commit
d117fd8003
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=301514
@ -1007,11 +1007,14 @@ if_detach_internal(struct ifnet *ifp, int vmove, struct if_clone **ifcp)
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ifp->if_addr = NULL;
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/* We can now free link ifaddr. */
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IF_ADDR_WLOCK(ifp);
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if (!TAILQ_EMPTY(&ifp->if_addrhead)) {
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ifa = TAILQ_FIRST(&ifp->if_addrhead);
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TAILQ_REMOVE(&ifp->if_addrhead, ifa, ifa_link);
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IF_ADDR_WUNLOCK(ifp);
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ifa_free(ifa);
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}
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} else
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IF_ADDR_WUNLOCK(ifp);
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}
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rt_flushifroutes(ifp);
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