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    Subject[PATCH 4.14 62/88] kernfs: deal with kernfs_fill_super() failures
    Date
    From: Al Viro <viro@zeniv.linux.org.uk>

    commit 82382acec0c97b91830fff7130d0acce4ac4f3f3 upstream.

    make sure that info->node is initialized early, so that kernfs_kill_sb()
    can list_del() it safely.

    Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
    Signed-off-by: Guilherme G. Piccoli <gpiccoli@canonical.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    fs/kernfs/mount.c | 1 +
    1 file changed, 1 insertion(+)

    diff --git a/fs/kernfs/mount.c b/fs/kernfs/mount.c
    index 5019058e0f6a..610267585f8f 100644
    --- a/fs/kernfs/mount.c
    +++ b/fs/kernfs/mount.c
    @@ -320,6 +320,7 @@ struct dentry *kernfs_mount_ns(struct file_system_type *fs_type, int flags,

    info->root = root;
    info->ns = ns;
    + INIT_LIST_HEAD(&info->node);

    sb = sget_userns(fs_type, kernfs_test_super, kernfs_set_super, flags,
    &init_user_ns, info);
    --
    2.30.2
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