finit_module+0x44/0x58
el0_svc_common+0x100/0x264
do_el0_svc+0x38/0xa4
el0_svc+0x20/0x30
el0_sync_handler+0x68/0xac
el0_sync+0x160/0x180
Fix this by setting dev->iommu to NULL first and
then freeing dev_iommu structure in dev_iommu_free
function.
Suggested-by: Robin Murphy
Signed-off-by: V
On 1/22/2022 12:50 AM, Robin Murphy wrote:
> On 2022-01-21 07:16, Vijayanand Jitta wrote:
>>
>>
>> On 1/18/2022 9:27 PM, Vijayanand Jitta wrote:
>>>
>>>
>>> On 1/18/2022 7:19 PM, Robin Murphy wrote:
>>>> On 2022-01-12 13:13, Vijaya
On 1/18/2022 9:27 PM, Vijayanand Jitta wrote:
>
>
> On 1/18/2022 7:19 PM, Robin Murphy wrote:
>> On 2022-01-12 13:13, Vijayanand Jitta wrote:
>>> Kasan has reported the following use after free on dev->iommu.
>>> when a device probe fails and it
On 1/18/2022 7:19 PM, Robin Murphy wrote:
> On 2022-01-12 13:13, Vijayanand Jitta wrote:
>> Kasan has reported the following use after free on dev->iommu.
>> when a device probe fails and it is in process of freeing dev->iommu
>> in dev_iommu_free function, a de
finit_module+0x44/0x58
el0_svc_common+0x100/0x264
do_el0_svc+0x38/0xa4
el0_svc+0x20/0x30
el0_sync_handler+0x68/0xac
el0_sync+0x160/0x180
Fix this by taking device_lock during probe_iommu_group.
Signed-off-by: Vijayanand Jitta
---
drivers/iommu/iommu.c | 12
1 file changed, 8 inse
On 9/30/2020 1:14 PM, vji...@codeaurora.org wrote:
> From: Vijayanand Jitta
>
> When ever an iova alloc request fails we free the iova
> ranges present in the percpu iova rcaches and then retry
> but the global iova rcache is not freed as a result we could
> still see iova
On 9/30/2020 1:14 PM, vji...@codeaurora.org wrote:
> From: Vijayanand Jitta
>
> When ever a new iova alloc request comes iova is always searched
> from the cached node and the nodes which are previous to cached
> node. So, even if there is free iova space available in th
On 9/28/2020 6:11 PM, Vijayanand Jitta wrote:
>
>
> On 9/18/2020 8:11 PM, Robin Murphy wrote:
>> On 2020-08-20 13:49, vji...@codeaurora.org wrote:
>>> From: Vijayanand Jitta
>>>
>>> When ever an iova alloc request fails we free the iova
>
On 9/18/2020 7:48 PM, Robin Murphy wrote:
> On 2020-08-20 13:49, vji...@codeaurora.org wrote:
>> From: Vijayanand Jitta
>>
>> When ever a new iova alloc request comes iova is always searched
>> from the cached node and the nodes which are previous to cached
>>
On 9/18/2020 8:11 PM, Robin Murphy wrote:
> On 2020-08-20 13:49, vji...@codeaurora.org wrote:
>> From: Vijayanand Jitta
>>
>> When ever an iova alloc request fails we free the iova
>> ranges present in the percpu iova rcaches and then retry
>> but the global iov
On 8/28/2020 1:01 PM, Vijayanand Jitta wrote:
>
>
> On 8/20/2020 6:19 PM, vji...@codeaurora.org wrote:
>> From: Vijayanand Jitta
>>
>> When ever a new iova alloc request comes iova is always searched
>> from the cached node and the nodes which are pre
On 8/20/2020 6:19 PM, vji...@codeaurora.org wrote:
> From: Vijayanand Jitta
>
> When ever a new iova alloc request comes iova is always searched
> from the cached node and the nodes which are previous to cached
> node. So, even if there is free iova space available in th
On 8/12/2020 8:46 PM, Joerg Roedel wrote:
> On Mon, Aug 03, 2020 at 03:30:48PM +0530, Vijayanand Jitta wrote:
>> ping?
>
> Please repost when v5.9-rc1 is released and add
>
> Robin Murphy
>
> on your Cc list.
>
> Thanks,
>
> Joerg
>
On 7/3/2020 7:47 PM, vji...@codeaurora.org wrote:
> From: Vijayanand Jitta
>
> When ever an iova alloc request fails we free the iova
> ranges present in the percpu iova rcaches and then retry
> but the global iova rcache is not freed as a result we could
> still see iova
On 7/3/2020 7:47 PM, vji...@codeaurora.org wrote:
> From: Vijayanand Jitta
>
> When ever a new iova alloc request comes iova is always searched
> from the cached node and the nodes which are previous to cached
> node. So, even if there is free iova space available in th
On 5/11/2020 4:34 PM, vji...@codeaurora.org wrote:
> From: Vijayanand Jitta
>
> When ever a new iova alloc request comes iova is always searched
> from the cached node and the nodes which are previous to cached
> node. So, even if there is free iova space available in th
On 5/9/2020 12:25 AM, Vijayanand Jitta wrote:
>
>
> On 5/7/2020 6:54 PM, Robin Murphy wrote:
>> On 2020-05-06 9:01 pm, vji...@codeaurora.org wrote:
>>> From: Vijayanand Jitta
>>>
>>> When ever a new iova alloc request comes iova is always searched
&g
On 5/7/2020 6:54 PM, Robin Murphy wrote:
> On 2020-05-06 9:01 pm, vji...@codeaurora.org wrote:
>> From: Vijayanand Jitta
>>
>> When ever a new iova alloc request comes iova is always searched
>> from the cached node and the nodes which are previous to cached
>>
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