linux-kernel - Re: [PATCH v1 1/2] kasan: free allocated shadow memory on MEM_CANCEL

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <781aad97-3fe7-cf78-ad27-464254a5da27@redhat.com>
Date:   Tue, 22 May 2018 11:58:13 +0200
From:   David Hildenbrand <david@...hat.com>
To:     linux-mm@...ck.org
Cc:     linux-kernel@...r.kernel.org,
        Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Alexander Potapenko <glider@...gle.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        "open list:KASAN" <kasan-dev@...glegroups.com>
Subject: Re: [PATCH v1 1/2] kasan: free allocated shadow memory on
 MEM_CANCEL_OFFLINE

On 22.05.2018 11:55, David Hildenbrand wrote:
> We have to free memory again when we cancel onlining, otherwise a later
> onlining attempt will fail.
> 
> Signed-off-by: David Hildenbrand <david@...hat.com>
> ---
>  mm/kasan/kasan.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/mm/kasan/kasan.c b/mm/kasan/kasan.c
> index 135ce2838c89..8baefe1a674b 100644
> --- a/mm/kasan/kasan.c
> +++ b/mm/kasan/kasan.c
> @@ -867,6 +867,7 @@ static int __meminit kasan_mem_notifier(struct notifier_block *nb,
>  		kmemleak_ignore(ret);
>  		return NOTIFY_OK;
>  	}
> +	case MEM_CANCEL_OFFLINE:

Typo, MEM_CANCEL_ONLINE

>  	case MEM_OFFLINE: {
>  		struct vm_struct *vm;
>  
> 


-- 

Thanks,

David / dhildenb