Re: [PATCH 14/19] fs: Permit FIBMAP for users with CAP_SYS_RAWIO in s_user_ns

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Quoting Seth Forshee (seth.forshee@xxxxxxxxxxxxx):
> Signed-off-by: Seth Forshee <seth.forshee@xxxxxxxxxxxxx>

Acked-by: Serge Hallyn <serge.hallyn@xxxxxxxxxxxxx>

> ---
>  fs/ioctl.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/ioctl.c b/fs/ioctl.c
> index 5d01d2638ca5..45c371bed7ee 100644
> --- a/fs/ioctl.c
> +++ b/fs/ioctl.c
> @@ -55,7 +55,7 @@ static int ioctl_fibmap(struct file *filp, int __user *p)
>  	/* do we support this mess? */
>  	if (!mapping->a_ops->bmap)
>  		return -EINVAL;
> -	if (!capable(CAP_SYS_RAWIO))
> +	if (!ns_capable(filp->f_inode->i_sb->s_user_ns, CAP_SYS_RAWIO))
>  		return -EPERM;
>  	res = get_user(block, p);
>  	if (res)
> -- 
> 1.9.1
> 
> --
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