diff options
| author | Trond Myklebust <trondmy@gmail.com> | 2018-10-09 15:54:15 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-13 11:17:01 -0800 |
| commit | 5727dbcd2628f30b7063c89f6b1eb028e9fef540 (patch) | |
| tree | 1cdd1011e00fd1cde9543f021019bcd3804151e8 /net/sunrpc/svc_xprt.c | |
| parent | 65f27a3fac4c1c43cd334df47c70a7ca4658d40c (diff) | |
nfsd: Fix an Oops in free_session()
commit bb6ad5572c0022e17e846b382d7413cdcf8055be upstream.
In call_xpt_users(), we delete the entry from the list, but we
do not reinitialise it. This triggers the list poisoning when
we later call unregister_xpt_user() in nfsd4_del_conns().
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Cc: stable@vger.kernel.org
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/sunrpc/svc_xprt.c')
| -rw-r--r-- | net/sunrpc/svc_xprt.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c index 9c9db55a0c1e..064f20bb845a 100644 --- a/net/sunrpc/svc_xprt.c +++ b/net/sunrpc/svc_xprt.c @@ -1038,7 +1038,7 @@ static void call_xpt_users(struct svc_xprt *xprt) spin_lock(&xprt->xpt_lock); while (!list_empty(&xprt->xpt_users)) { u = list_first_entry(&xprt->xpt_users, struct svc_xpt_user, list); - list_del(&u->list); + list_del_init(&u->list); u->callback(u); } spin_unlock(&xprt->xpt_lock); |