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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2007-09-28 12:27:41 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-09-28 15:36:42 -0700 |
| commit | 54af3bb543c071769141387a42deaaab5074da55 (patch) | |
| tree | d24e5b23462a51a4e932b14feb5ae943b0dbba1e /fs/nfs/dir.c | |
| parent | bd8936632475665bfd90c1180c9c1301ee838db8 (diff) | |
| download | linux-stable-54af3bb543c071769141387a42deaaab5074da55.tar.gz linux-stable-54af3bb543c071769141387a42deaaab5074da55.tar.bz2 linux-stable-54af3bb543c071769141387a42deaaab5074da55.zip | |
NFS: Fix an Oops in encode_lookup()
It doesn't look as if the NFS file name limit is being initialised correctly
in the struct nfs_server. Make sure that we limit whatever is being set in
nfs_probe_fsinfo() and nfs_init_server().
Also ensure that readdirplus and nfs4_path_walk respect our file name
limits.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/nfs/dir.c')
| -rw-r--r-- | fs/nfs/dir.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index ea97408e423e..e4a04d16b8b0 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -1162,6 +1162,8 @@ static struct dentry *nfs_readdir_lookup(nfs_readdir_descriptor_t *desc) } if (!desc->plus || !(entry->fattr->valid & NFS_ATTR_FATTR)) return NULL; + if (name.len > NFS_SERVER(dir)->namelen) + return NULL; /* Note: caller is already holding the dir->i_mutex! */ dentry = d_alloc(parent, &name); if (dentry == NULL) |