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Commit b5c3bc4b authored by Trond Myklebust's avatar Trond Myklebust Committed by Greg Kroah-Hartman
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NFS: Fix a race in __nfs_list_for_each_server()


commit 9c07b75b upstream.

The struct nfs_server gets put on the cl_superblocks list before
the server->super field has been initialised, in which case the
call to nfs_sb_active() will Oops. Add a check to ensure that
we skip such a list entry.

Fixes: 3c9e502b ("NFS: Add a helper nfs_client_for_each_server()")
Signed-off-by: default avatarTrond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent f0ea421f
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