| commit | c68a027c05709330fe5b2f50c50d5fa02124b5d8 | [log] [tgz] |
|---|---|---|
| author | Benjamin Coddington <bcodding@redhat.com> | Fri Nov 20 09:56:20 2015 -0500 |
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | Mon Nov 23 21:59:42 2015 -0500 |
| tree | 42a72e774e63306c52ecd51d9c2314209a50bed0 | |
| parent | 91ab4b4d16e6649fbbf65f303c0c4e20ed680bd1 [diff] |
nfs4: start callback_ident at idr 1
If clp->cl_cb_ident is zero, then nfs_cb_idr_remove_locked() skips removing
it when the nfs_client is freed. A decoding or server bug can then find
and try to put that first nfs_client which would lead to a crash.
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Fixes: d6870312659d ("nfs4client: convert to idr_alloc()")
Cc: stable@vger.kernel.org
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>