Re: [PATCH v1 0/2] MPAM Fixes for UAF and NPE on unbind

[Will Deacon]

On Thu, Aug 06, 2026 at 03:46:29PM +0100, Ben Horgan wrote:
> The MPAM driver expects to manage all the MSC in a system. At boot it
> delays its initialization until it has probed all of them but once
> running it is unprepared to have the MSC taken away and that can trigger
> UAF and NPE. Workaround this by ensuring it never relinquishes the MSC.
> 
> Ben Horgan (2):
>   arm_mpam: Fix a NULL pointer dereference on unbinding after an error
>     interrupt
>   arm_mpam: Disable driver unbind to avoid UAF
> 
>  drivers/resctrl/mpam_devices.c | 4 ++++
>  1 file changed, 4 insertions(+)

Thanks, I've applied these but you got Catalin's email address wrong
(I've fixed it for this reply) so the thank you email failed to go out.

Will