Warning: ifaddr refcount use patch (svn commit: r194760 - in head/sys: contrib/rdma net net80211 netinet netinet6 netipx (fwd))

suraj sandhu surajsandhu.2005 at gmail.com
Thu Aug 2 15:17:03 UTC 2012


Hi Robert,

I am using Freebsd 8.2 and facing the Use-after-free issue because of the
possible reference release on ifaddr without it being acquired.
The issue is that ifa remains on the addr list of ifp but it is already
free which leads to the panic in the code trying to traverse through the
ifaddr list of ifp.

I am wondering if the patches you mentioned in the thread are still
available.

Thanks,
Suraj


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