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Date:   Thu, 5 Jan 2023 13:18:38 +0100
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Subject: Re: [PATCH v2 1/1] mm: fix vma->anon_name memory leak for anonymous
 shmem VMAs
To:     =?UTF-8?Q?Holger_Hoffst=c3=a4tte?= <holger@applied-asynchrony.com>,
        Suren Baghdasaryan <surenb@google.com>,
        Andrew Morton <akpm@linux-foundation.org>
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From:   David Hildenbrand <david@redhat.com>
Organization: Red Hat
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On 05.01.23 13:07, Holger Hoffstätte wrote:
> On 2023-01-05 10:03, David Hildenbrand wrote:
>> On 05.01.23 03:39, Suren Baghdasaryan wrote:
>>> On Wed, Jan 4, 2023 at 5:38 PM Andrew Morton <akpm@linux-foundation.org> wrote:
>>>>
>>>> On Wed,  4 Jan 2023 16:02:40 -0800 Suren Baghdasaryan <surenb@google.com> wrote:
>>>>
>>>>> free_anon_vma_name() is missing a check for anonymous shmem VMA which
>>>>> leads to a memory leak due to refcount not being dropped.  Fix this by
>>>>> calling anon_vma_name_put() unconditionally. It will free vma->anon_name
>>>>> whenever it's non-NULL.
>>>>>
>>>>> Fixes: d09e8ca6cb93 ("mm: anonymous shared memory naming")
>>>>
>>>> A cc:stable is appropriate here, yes?
>>>
>>> Hmm. The patch we are fixing here was merged in 6.2-rc1. Should I CC
>>> stable to fix the previous -rc branch?
>>>
>>
>> No need for stable if it's not in a release kernel yet.
> 
> Commit d09e8ca6cb93 is in 6.1. The fix applies cleanly.

$ git tag --contains d09e8ca6cb93 | grep "^v"
v6.2-rc1
v6.2-rc2

Doesn't look like 6.1 to me.

-- 
Thanks,

David / dhildenb