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authorJ. Bruce Fields <bfields@citi.umich.edu>2007-07-23 18:43:52 -0700
committerWilly Tarreau <w@1wt.eu>2007-08-25 17:24:14 +0200
commitf83801d9974cda3172c4ca9c72ca39940df30f47 (patch)
tree3f5efa67f759f367ede0c193920004fbabde9de2
parentf1c3689f3b8d8b97ac1653545b038b4551fc4443 (diff)
[PATCH] nfsd: fix possible oops on re-insertion of rpcsec_gss modules
The handling of the re-registration case is wrong here; the "test" that was returned from auth_domain_lookup will not be used again, so that reference should be put. And auth_domain_lookup never did anything with "new" in this case, so we should just clean it up ourself. Thanks to Akinobu Mita for bug report, analysis, and testing. Cc: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Cc: Neil Brown <neilb@suse.de> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Willy Tarreau <w@1wt.eu>
-rw-r--r--net/sunrpc/auth_gss/svcauth_gss.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c
index 066c64a97fd8..6179767c36c7 100644
--- a/net/sunrpc/auth_gss/svcauth_gss.c
+++ b/net/sunrpc/auth_gss/svcauth_gss.c
@@ -760,11 +760,12 @@ svcauth_gss_register_pseudoflavor(u32 pseudoflavor, char * name)
new->h.flavour = &svcauthops_gss;
new->pseudoflavor = pseudoflavor;
+ stat = 0;
test = auth_domain_lookup(name, &new->h);
- if (test != &new->h) { /* XXX Duplicate registration? */
- auth_domain_put(&new->h);
- /* dangling ref-count... */
- goto out;
+ if (test != &new->h) { /* Duplicate registration */
+ auth_domain_put(test);
+ kfree(new->h.name);
+ goto out_free_dom;
}
return 0;