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NFS: readdir shouldn't read beyond the reply returned by the server

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Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust
2010-11-15 20:26:22 -05:00
parent 8cd51a0ccd
commit ac39612824
5 changed files with 11 additions and 7 deletions
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4
fs/nfs/nfs4proc.c
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@@ -2852,8 +2852,10 @@ static int _nfs4_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
nfs4_setup_readdir(cookie, NFS_COOKIEVERF(dir), dentry, &args);
res.pgbase = args.pgbase;
status = nfs4_call_sync(NFS_SERVER(dir), &msg, &args, &res, 0);
if (status == 0)
if (status >= 0) {
memcpy(NFS_COOKIEVERF(dir), res.verifier.data, NFS4_VERIFIER_SIZE);
status += args.pgbase;
}
nfs_invalidate_atime(dir);