diff options
| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-03-19 12:36:53 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-04-05 10:16:38 -0700 |
| commit | 01b140abad66f022ff6dff7cc1307b07281035fa (patch) | |
| tree | 0bcc23968e52a00d9cbdc8e729946938f644a7c1 /include | |
| parent | c938c22b48302eeb9a6f3cc83f223f37d98ba6f7 (diff) | |
NFSv4: Fix an Oops in the NFSv4 getacl code
commit 331818f1c468a24e581aedcbe52af799366a9dfe upstream.
Commit bf118a342f10dafe44b14451a1392c3254629a1f (NFSv4: include bitmap
in nfsv4 get acl data) introduces the 'acl_scratch' page for the case
where we may need to decode multi-page data. However it fails to take
into account the fact that the variable may be NULL (for the case where
we're not doing multi-page decode), and it also attaches it to the
encoding xdr_stream rather than the decoding one.
The immediate result is an Oops in nfs4_xdr_enc_getacl due to the
call to page_address() with a NULL page pointer.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Andy Adamson <andros@netapp.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/nfs_xdr.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 2b254943ac1..9733df5c60f 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -588,7 +588,6 @@ struct nfs_getaclargs { size_t acl_len; unsigned int acl_pgbase; struct page ** acl_pages; - struct page * acl_scratch; struct nfs4_sequence_args seq_args; }; @@ -598,6 +597,7 @@ struct nfs_getaclres { size_t acl_len; size_t acl_data_offset; int acl_flags; + struct page * acl_scratch; struct nfs4_sequence_res seq_res; }; |