* [PATCH] vfio-pci/nvlink2: Fix potential VMA leak
@ 2019-04-19 15:37 Greg Kurz
2019-04-26 7:50 ` Alexey Kardashevskiy
2019-05-06 21:58 ` Alex Williamson
0 siblings, 2 replies; 6+ messages in thread
From: Greg Kurz @ 2019-04-19 15:37 UTC (permalink / raw)
To: linux-kernel
Cc: linuxppc-dev, Michael Ellerman, Alexey Kardashevskiy, Alex Williamson
If vfio_pci_register_dev_region() fails then we should rollback
previous changes, ie. unmap the ATSD registers.
Signed-off-by: Greg Kurz <groug@kaod.org>
---
drivers/vfio/pci/vfio_pci_nvlink2.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/vfio/pci/vfio_pci_nvlink2.c b/drivers/vfio/pci/vfio_pci_nvlink2.c
index 32f695ffe128..50fe3c4f7feb 100644
--- a/drivers/vfio/pci/vfio_pci_nvlink2.c
+++ b/drivers/vfio/pci/vfio_pci_nvlink2.c
@@ -472,6 +472,8 @@ int vfio_pci_ibm_npu2_init(struct vfio_pci_device *vdev)
return 0;
free_exit:
+ if (data->base)
+ memunmap(data->base);
kfree(data);
return ret;
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH] vfio-pci/nvlink2: Fix potential VMA leak
2019-04-19 15:37 [PATCH] vfio-pci/nvlink2: Fix potential VMA leak Greg Kurz
@ 2019-04-26 7:50 ` Alexey Kardashevskiy
2019-05-06 21:58 ` Alex Williamson
1 sibling, 0 replies; 6+ messages in thread
From: Alexey Kardashevskiy @ 2019-04-26 7:50 UTC (permalink / raw)
To: Greg Kurz, linux-kernel; +Cc: linuxppc-dev, Michael Ellerman, Alex Williamson
On 20/04/2019 01:37, Greg Kurz wrote:
> If vfio_pci_register_dev_region() fails then we should rollback
> previous changes, ie. unmap the ATSD registers.
>
> Signed-off-by: Greg Kurz <groug@kaod.org>
> ---
> drivers/vfio/pci/vfio_pci_nvlink2.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/vfio/pci/vfio_pci_nvlink2.c b/drivers/vfio/pci/vfio_pci_nvlink2.c
> index 32f695ffe128..50fe3c4f7feb 100644
> --- a/drivers/vfio/pci/vfio_pci_nvlink2.c
> +++ b/drivers/vfio/pci/vfio_pci_nvlink2.c
> @@ -472,6 +472,8 @@ int vfio_pci_ibm_npu2_init(struct vfio_pci_device *vdev)
> return 0;
>
> free_exit:
> + if (data->base)
> + memunmap(data->base);
> kfree(data);
>
> return ret;
>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
--
Alexey
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] vfio-pci/nvlink2: Fix potential VMA leak
2019-04-19 15:37 [PATCH] vfio-pci/nvlink2: Fix potential VMA leak Greg Kurz
2019-04-26 7:50 ` Alexey Kardashevskiy
@ 2019-05-06 21:58 ` Alex Williamson
2019-05-07 1:52 ` Sam Bobroff
1 sibling, 1 reply; 6+ messages in thread
From: Alex Williamson @ 2019-05-06 21:58 UTC (permalink / raw)
To: Greg Kurz
Cc: linux-kernel, linuxppc-dev, Michael Ellerman, Alexey Kardashevskiy
On Fri, 19 Apr 2019 17:37:17 +0200
Greg Kurz <groug@kaod.org> wrote:
> If vfio_pci_register_dev_region() fails then we should rollback
> previous changes, ie. unmap the ATSD registers.
>
> Signed-off-by: Greg Kurz <groug@kaod.org>
> ---
Applied to vfio next branch for v5.2 with Alexey's R-b. Thanks!
Alex
> drivers/vfio/pci/vfio_pci_nvlink2.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/vfio/pci/vfio_pci_nvlink2.c b/drivers/vfio/pci/vfio_pci_nvlink2.c
> index 32f695ffe128..50fe3c4f7feb 100644
> --- a/drivers/vfio/pci/vfio_pci_nvlink2.c
> +++ b/drivers/vfio/pci/vfio_pci_nvlink2.c
> @@ -472,6 +472,8 @@ int vfio_pci_ibm_npu2_init(struct vfio_pci_device *vdev)
> return 0;
>
> free_exit:
> + if (data->base)
> + memunmap(data->base);
> kfree(data);
>
> return ret;
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] vfio-pci/nvlink2: Fix potential VMA leak
2019-05-06 21:58 ` Alex Williamson
@ 2019-05-07 1:52 ` Sam Bobroff
2019-05-07 7:01 ` Greg Kurz
0 siblings, 1 reply; 6+ messages in thread
From: Sam Bobroff @ 2019-05-07 1:52 UTC (permalink / raw)
To: Alex Williamson
Cc: Greg Kurz, Alexey Kardashevskiy, linuxppc-dev, linux-kernel
[-- Attachment #1: Type: text/plain, Size: 1095 bytes --]
On Mon, May 06, 2019 at 03:58:45PM -0600, Alex Williamson wrote:
> On Fri, 19 Apr 2019 17:37:17 +0200
> Greg Kurz <groug@kaod.org> wrote:
>
> > If vfio_pci_register_dev_region() fails then we should rollback
> > previous changes, ie. unmap the ATSD registers.
> >
> > Signed-off-by: Greg Kurz <groug@kaod.org>
> > ---
>
> Applied to vfio next branch for v5.2 with Alexey's R-b. Thanks!
>
> Alex
Should this have a fixes tag? e.g.:
Fixes: 7f92891778df ("vfio_pci: Add NVIDIA GV100GL [Tesla V100 SXM2] subdriver")
> > drivers/vfio/pci/vfio_pci_nvlink2.c | 2 ++
> > 1 file changed, 2 insertions(+)
> >
> > diff --git a/drivers/vfio/pci/vfio_pci_nvlink2.c b/drivers/vfio/pci/vfio_pci_nvlink2.c
> > index 32f695ffe128..50fe3c4f7feb 100644
> > --- a/drivers/vfio/pci/vfio_pci_nvlink2.c
> > +++ b/drivers/vfio/pci/vfio_pci_nvlink2.c
> > @@ -472,6 +472,8 @@ int vfio_pci_ibm_npu2_init(struct vfio_pci_device *vdev)
> > return 0;
> >
> > free_exit:
> > + if (data->base)
> > + memunmap(data->base);
> > kfree(data);
> >
> > return ret;
> >
>
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^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [PATCH] vfio-pci/nvlink2: Fix potential VMA leak
2019-05-07 1:52 ` Sam Bobroff
@ 2019-05-07 7:01 ` Greg Kurz
2019-05-07 17:25 ` Alex Williamson
0 siblings, 1 reply; 6+ messages in thread
From: Greg Kurz @ 2019-05-07 7:01 UTC (permalink / raw)
To: Sam Bobroff
Cc: Alex Williamson, Alexey Kardashevskiy, linuxppc-dev, linux-kernel
[-- Attachment #1: Type: text/plain, Size: 1323 bytes --]
On Tue, 7 May 2019 11:52:44 +1000
Sam Bobroff <sbobroff@linux.ibm.com> wrote:
> On Mon, May 06, 2019 at 03:58:45PM -0600, Alex Williamson wrote:
> > On Fri, 19 Apr 2019 17:37:17 +0200
> > Greg Kurz <groug@kaod.org> wrote:
> >
> > > If vfio_pci_register_dev_region() fails then we should rollback
> > > previous changes, ie. unmap the ATSD registers.
> > >
> > > Signed-off-by: Greg Kurz <groug@kaod.org>
> > > ---
> >
> > Applied to vfio next branch for v5.2 with Alexey's R-b. Thanks!
> >
> > Alex
>
> Should this have a fixes tag? e.g.:
> Fixes: 7f92891778df ("vfio_pci: Add NVIDIA GV100GL [Tesla V100 SXM2] subdriver")
>
Oops... you're right.
Alex, can you add the above tag ?
> > > drivers/vfio/pci/vfio_pci_nvlink2.c | 2 ++
> > > 1 file changed, 2 insertions(+)
> > >
> > > diff --git a/drivers/vfio/pci/vfio_pci_nvlink2.c b/drivers/vfio/pci/vfio_pci_nvlink2.c
> > > index 32f695ffe128..50fe3c4f7feb 100644
> > > --- a/drivers/vfio/pci/vfio_pci_nvlink2.c
> > > +++ b/drivers/vfio/pci/vfio_pci_nvlink2.c
> > > @@ -472,6 +472,8 @@ int vfio_pci_ibm_npu2_init(struct vfio_pci_device *vdev)
> > > return 0;
> > >
> > > free_exit:
> > > + if (data->base)
> > > + memunmap(data->base);
> > > kfree(data);
> > >
> > > return ret;
> > >
> >
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^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [PATCH] vfio-pci/nvlink2: Fix potential VMA leak
2019-05-07 7:01 ` Greg Kurz
@ 2019-05-07 17:25 ` Alex Williamson
0 siblings, 0 replies; 6+ messages in thread
From: Alex Williamson @ 2019-05-07 17:25 UTC (permalink / raw)
To: Greg Kurz; +Cc: Sam Bobroff, Alexey Kardashevskiy, linuxppc-dev, linux-kernel
On Tue, 7 May 2019 09:01:45 +0200
Greg Kurz <groug@kaod.org> wrote:
> On Tue, 7 May 2019 11:52:44 +1000
> Sam Bobroff <sbobroff@linux.ibm.com> wrote:
>
> > On Mon, May 06, 2019 at 03:58:45PM -0600, Alex Williamson wrote:
> > > On Fri, 19 Apr 2019 17:37:17 +0200
> > > Greg Kurz <groug@kaod.org> wrote:
> > >
> > > > If vfio_pci_register_dev_region() fails then we should rollback
> > > > previous changes, ie. unmap the ATSD registers.
> > > >
> > > > Signed-off-by: Greg Kurz <groug@kaod.org>
> > > > ---
> > >
> > > Applied to vfio next branch for v5.2 with Alexey's R-b. Thanks!
> > >
> > > Alex
> >
> > Should this have a fixes tag? e.g.:
> > Fixes: 7f92891778df ("vfio_pci: Add NVIDIA GV100GL [Tesla V100 SXM2] subdriver")
> >
>
> Oops... you're right.
>
> Alex, can you add the above tag ?
Added. Thanks,
Alex
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2019-05-07 17:26 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2019-04-19 15:37 [PATCH] vfio-pci/nvlink2: Fix potential VMA leak Greg Kurz
2019-04-26 7:50 ` Alexey Kardashevskiy
2019-05-06 21:58 ` Alex Williamson
2019-05-07 1:52 ` Sam Bobroff
2019-05-07 7:01 ` Greg Kurz
2019-05-07 17:25 ` Alex Williamson
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