From 05e9cfb408b24debb3a85fd98edbfd09dd148881 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 27 Mar 2012 18:13:02 -0400 Subject: [PATCH] NFSv4: Fix two infinite loops in the mount code We can currently loop forever in nfs4_lookup_root() and in nfs41_proc_secinfo_no_name(), if the first iteration returns a NFS4ERR_DELAY or something else that causes exception.retry to get set. Reported-by: Weston Andros Adamson Signed-off-by: Trond Myklebust Cc: stable@vger.kernel.org --- fs/nfs/nfs4proc.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 45df7d4..ee9ca19 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -2290,11 +2290,12 @@ static int nfs4_lookup_root(struct nfs_server *server, struct nfs_fh *fhandle, switch (err) { case 0: case -NFS4ERR_WRONGSEC: - break; + goto out; default: err = nfs4_handle_exception(server, err, &exception); } } while (exception.retry); +out: return err; } @@ -6229,11 +6230,12 @@ nfs41_proc_secinfo_no_name(struct nfs_server *server, struct nfs_fh *fhandle, case 0: case -NFS4ERR_WRONGSEC: case -NFS4ERR_NOTSUPP: - break; + goto out; default: err = nfs4_handle_exception(server, err, &exception); } } while (exception.retry); +out: return err; } -- 2.7.4