linux-kernel - Re: [PATCH] KVM: fix memoryleak in kvm

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Message-ID: <5f15a3a0-446f-59a4-6bef-8be0e5630f5b@redhat.com>
Date:   Fri, 2 Sep 2022 01:17:21 +0200
From:   Paolo Bonzini <pbonzini@...hat.com>
To:     Sean Christopherson <seanjc@...gle.com>,
        Miaohe Lin <linmiaohe@...wei.com>
Cc:     vkuznets@...hat.com, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] KVM: fix memoryleak in kvm_init()

On 8/30/22 23:36, Sean Christopherson wrote:
> On Tue, Aug 23, 2022, Miaohe Lin wrote:
>> When alloc_cpumask_var_node() fails for a certain cpu, there might be some
>> allocated cpumasks for percpu cpu_kick_mask. We should free these cpumasks
>> or memoryleak will occur.
>>
>> Fixes: baff59ccdc65 ("KVM: Pre-allocate cpumasks for kvm_make_all_cpus_request_except()")
>> Signed-off-by: Miaohe Lin <linmiaohe@...wei.com>
>> ---
> 
> Pushed to branch `for_paolo/6.1` at:
> 
>      https://github.com/sean-jc/linux.git
> 
> Unless you hear otherwise, it will make its way to kvm/queue "soon".
> 
> Note, the commit IDs are not guaranteed to be stable.

Hmm, I was going to merge these memory leak fixes for 6.0, but no big 
deal since they're mostly theoretical anyway.

Paolo