Messages in this thread | | | Date | Tue, 22 Mar 2016 17:35:24 -0400 | Subject | Re: [PATCH] selinux: fix memory leak on node_ptr on error return path | From | Paul Moore <> |
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On Tue, Mar 22, 2016 at 4:28 PM, Serge E. Hallyn <serge@hallyn.com> wrote: > Quoting Colin King (colin.king@canonical.com): >> From: Colin Ian King <colin.king@canonical.com> >> >> node_ptr is not being free'd if the list allocation fails, fix >> this by kfree'ing it before exiting on the error path. >> >> Signed-off-by: Colin Ian King <colin.king@canonical.com> > > Hi, > > I'm not very familiar with this code any more, but are you sure > this is needed and doesn't cause a new bug? It *looks* like > the avtab_insert_nonunique() actually inserts the node_ptr > into the policydb, and the policydb is the one that should > eventually free it.
Exactly. cond_insertf() calls avtab_insert_nonunique() which calls avtab_insert_node() which adds the node to the avtab. The avtab will get cleaned up later by the error handling code in the cond_insertf() call chain.
-- paul moore www.paul-moore.com
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