On Mon, Sep 25, 2017 at 9:09 PM, Hirofumi Nakagawa <nklabs@xxxxxxxxx> wrote:
> This was detected by fault injection test
>
> Signed-off-by: Hirofumi Nakagawa <nklabs@xxxxxxxxx>
Fixes: 13cf199d0088 ("ovl: allocate an ovl_inode struct")
Cc: <stable@xxxxxxxxxxxxxxx> # v4.13
> ---
> fs/overlayfs/super.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
> index fd5ea4facc62..701aa2f3536d 100644
> --- a/fs/overlayfs/super.c
> +++ b/fs/overlayfs/super.c
> @@ -174,6 +174,9 @@ static struct inode *ovl_alloc_inode(struct super_block *sb)
> {
> struct ovl_inode *oi = kmem_cache_alloc(ovl_inode_cachep, GFP_KERNEL);
>
> + if (!oi)
> + return NULL;
> +
> oi->cache = NULL;
> oi->redirect = NULL;
> oi->version = 0;
> --
> 2.14.1
>
> --
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