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* [PATCH 1/1] Change the order of g_free(info) and tracepoint
@ 2020-11-06 13:39 Kirti Wankhede
  2020-11-06 15:59 ` David Edmondson
  2020-11-06 16:44 ` Alex Bennée
  0 siblings, 2 replies; 4+ messages in thread
From: Kirti Wankhede @ 2020-11-06 13:39 UTC (permalink / raw)
  To: alex.williamson, cjia; +Cc: mcrossley, Kirti Wankhede, qemu-devel, dnigam

Fixes Coverity issue:
CID 1436126:  Memory - illegal accesses  (USE_AFTER_FREE)

Fixes: a9e271ec9b36 ("vfio: Add migration region initialization and finalize
function")

Signed-off-by: Kirti Wankhede <kwankhede@nvidia.com>
---
 hw/vfio/migration.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/vfio/migration.c b/hw/vfio/migration.c
index 3ce285ea395d..55261562d4f3 100644
--- a/hw/vfio/migration.c
+++ b/hw/vfio/migration.c
@@ -897,8 +897,8 @@ int vfio_migration_probe(VFIODevice *vbasedev, Error **errp)
         goto add_blocker;
     }
 
-    g_free(info);
     trace_vfio_migration_probe(vbasedev->name, info->index);
+    g_free(info);
     return 0;
 
 add_blocker:
-- 
2.7.0



^ permalink raw reply related	[flat|nested] 4+ messages in thread

* Re: [PATCH 1/1] Change the order of g_free(info) and tracepoint
  2020-11-06 13:39 [PATCH 1/1] Change the order of g_free(info) and tracepoint Kirti Wankhede
@ 2020-11-06 15:59 ` David Edmondson
  2020-11-06 16:57   ` Philippe Mathieu-Daudé
  2020-11-06 16:44 ` Alex Bennée
  1 sibling, 1 reply; 4+ messages in thread
From: David Edmondson @ 2020-11-06 15:59 UTC (permalink / raw)
  To: Kirti Wankhede, alex.williamson, cjia
  Cc: mcrossley, Kirti Wankhede, qemu-devel, dnigam

On Friday, 2020-11-06 at 19:09:24 +0530, Kirti Wankhede wrote:

> Fixes Coverity issue:
> CID 1436126:  Memory - illegal accesses  (USE_AFTER_FREE)
>
> Fixes: a9e271ec9b36 ("vfio: Add migration region initialization and finalize
> function")
>
> Signed-off-by: Kirti Wankhede <kwankhede@nvidia.com>

Maybe "fix use after free in vfio_migration_probe" as a summary?

Reviewed-by: David Edmondson <dme@dme.org>

> ---
>  hw/vfio/migration.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/hw/vfio/migration.c b/hw/vfio/migration.c
> index 3ce285ea395d..55261562d4f3 100644
> --- a/hw/vfio/migration.c
> +++ b/hw/vfio/migration.c
> @@ -897,8 +897,8 @@ int vfio_migration_probe(VFIODevice *vbasedev, Error **errp)
>          goto add_blocker;
>      }
>  
> -    g_free(info);
>      trace_vfio_migration_probe(vbasedev->name, info->index);
> +    g_free(info);
>      return 0;
>  
>  add_blocker:
> -- 
> 2.7.0

dme.
-- 
I think I waited too long, I'm moving into the dollhouse.


^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [PATCH 1/1] Change the order of g_free(info) and tracepoint
  2020-11-06 13:39 [PATCH 1/1] Change the order of g_free(info) and tracepoint Kirti Wankhede
  2020-11-06 15:59 ` David Edmondson
@ 2020-11-06 16:44 ` Alex Bennée
  1 sibling, 0 replies; 4+ messages in thread
From: Alex Bennée @ 2020-11-06 16:44 UTC (permalink / raw)
  To: Kirti Wankhede; +Cc: mcrossley, alex.williamson, cjia, dnigam, qemu-devel


Kirti Wankhede <kwankhede@nvidia.com> writes:

> Fixes Coverity issue:
> CID 1436126:  Memory - illegal accesses  (USE_AFTER_FREE)
>
> Fixes: a9e271ec9b36 ("vfio: Add migration region initialization and finalize
> function")
>
> Signed-off-by: Kirti Wankhede <kwankhede@nvidia.com>

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

-- 
Alex Bennée


^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [PATCH 1/1] Change the order of g_free(info) and tracepoint
  2020-11-06 15:59 ` David Edmondson
@ 2020-11-06 16:57   ` Philippe Mathieu-Daudé
  0 siblings, 0 replies; 4+ messages in thread
From: Philippe Mathieu-Daudé @ 2020-11-06 16:57 UTC (permalink / raw)
  To: David Edmondson, Kirti Wankhede, alex.williamson, cjia
  Cc: mcrossley, qemu-devel, dnigam

On 11/6/20 4:59 PM, David Edmondson wrote:
> On Friday, 2020-11-06 at 19:09:24 +0530, Kirti Wankhede wrote:
> 
>> Fixes Coverity issue:
>> CID 1436126:  Memory - illegal accesses  (USE_AFTER_FREE)
>>
>> Fixes: a9e271ec9b36 ("vfio: Add migration region initialization and finalize
>> function")
>>
>> Signed-off-by: Kirti Wankhede <kwankhede@nvidia.com>
> 
> Maybe "fix use after free in vfio_migration_probe" as a summary?

Yes please :)

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

> 
> Reviewed-by: David Edmondson <dme@dme.org>
> 
>> ---
>>  hw/vfio/migration.c | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/hw/vfio/migration.c b/hw/vfio/migration.c
>> index 3ce285ea395d..55261562d4f3 100644
>> --- a/hw/vfio/migration.c
>> +++ b/hw/vfio/migration.c
>> @@ -897,8 +897,8 @@ int vfio_migration_probe(VFIODevice *vbasedev, Error **errp)
>>          goto add_blocker;
>>      }
>>  
>> -    g_free(info);
>>      trace_vfio_migration_probe(vbasedev->name, info->index);
>> +    g_free(info);
>>      return 0;
>>  
>>  add_blocker:
>> -- 
>> 2.7.0
> 
> dme.
> 



^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2020-11-06 16:58 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2020-11-06 13:39 [PATCH 1/1] Change the order of g_free(info) and tracepoint Kirti Wankhede
2020-11-06 15:59 ` David Edmondson
2020-11-06 16:57   ` Philippe Mathieu-Daudé
2020-11-06 16:44 ` Alex Bennée

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