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Re: [PATCH v2] livepatch: Pass buffer size to list sysctl
- To: Roger Pau Monné <roger.pau@xxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Mon, 12 May 2025 12:58:43 +0200
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- Cc: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>, Kevin Lampis <kevin.lampis@xxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Mon, 12 May 2025 10:58:48 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 12.05.2025 12:54, Roger Pau Monné wrote:
> On Mon, May 12, 2025 at 11:51:35AM +0200, Jan Beulich wrote:
>> On 08.05.2025 19:01, Ross Lagerwall wrote:
>>> @@ -1328,10 +1327,15 @@ static int livepatch_list(struct
>>> xen_sysctl_livepatch_list *list)
>>> status.rc = data->rc;
>>>
>>> name_len = strlen(data->name) + 1;
>>> - list->name_total_size += name_len;
>>> -
>>> metadata_len = data->metadata.len;
>>> - list->metadata_total_size += metadata_len;
>>> +
>>> + if ( (name_total_copied + name_len) > list->name_total_size ||
>>> + (metadata_total_copied + metadata_len) >
>>> + list->metadata_total_size )
>>> + {
>>> + rc = -ENOMEM;
>>
>> -ENOBUFS or maybe -ENOSPC, but certainly not -ENOMEM.
>
> Jan, are you fine if I replace with -ENOBUFS on commit?
Yes.
Jan
|
