Re: [PATCH] kvm: irqchip: fix memory leak

[Paolo Bonzini <pbonzini@redhat.com>]

On 03/11/2015 22:17, William Dauchy wrote:
> Hi Paolo,
> 
> I was wondering it this could be a valid candidate for -stable, don't you think?
> (commit ba60c41)

Certainly, feel free to propose it to stable@vger.kernel.org!

Paolo

> Best regards,
> 
> On Sep02 12:33, Sudip Mukherjee wrote:
>> We were taking the exit path after checking ue->flags and return value
>> of setup_routing_entry(), but 'e' was not freed incase of a failure.
>>
>> Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
>> ---
>>  virt/kvm/irqchip.c | 8 ++++++--
>>  1 file changed, 6 insertions(+), 2 deletions(-)
>>
>> diff --git a/virt/kvm/irqchip.c b/virt/kvm/irqchip.c
>> index 21c1424..c63e54f 100644
>> --- a/virt/kvm/irqchip.c
>> +++ b/virt/kvm/irqchip.c
>> @@ -213,11 +213,15 @@ int kvm_set_irq_routing(struct kvm *kvm,
>>  			goto out;
>>  
>>  		r = -EINVAL;
>> -		if (ue->flags)
>> +		if (ue->flags) {
>> +			kfree(e);
>>  			goto out;
>> +		}
>>  		r = setup_routing_entry(new, e, ue);
>> -		if (r)
>> +		if (r) {
>> +			kfree(e);
>>  			goto out;
>> +		}
>>  		++ue;
>>  	}
>>  
>> -- 
>> 1.9.1
>>
>> --
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>