Re: [PATCH 0/3] misc: sgi-gru: Remove broken page-table walks

[Muhammad Usama Anjum]

On 30/07/2026 1:22 pm, Dimitri Sivanich wrote:
> Muhammad,
> 
> I should let you know that we're currently and actively working on a
> forthcoming patch to remove the sgi-gru driver, due to security concerns.  We
> hope to submit this patch soon.
Didn't know. Thank you.

> 
> On Thu, Jul 30, 2026 at 12:12:49PM +0100, Muhammad Usama Anjum wrote:
>> While working on MM page-table changes, I found that the SGI GRU driver
>> walks user page tables unsafely from interrupt context. This series
>> removes that path, uses the existing process-context fallback, and
>> cleans up the resulting dead code.
>>
>> Muhammad Usama Anjum (3):
>>   misc: sgi-gru: remove interrupt-context page-table walks
>>   misc: sgi-gru: remove obsolete atomic fault-handling state
>>   misc: sgi-gru: inline the user CBR status update
>>
>>  drivers/misc/sgi-gru/grufault.c  | 185 +++++++------------------------
>>  drivers/misc/sgi-gru/gruprocfs.c |   1 -
>>  drivers/misc/sgi-gru/grutables.h |   1 -
>>  3 files changed, 41 insertions(+), 146 deletions(-)
>>
>> -- 
>> 2.47.3

-- 
Thanks,
Usama