Re: [PATCH v2 0/2] ata: pata_parport: fix UAF on protocol module unload

[Niklas Cassel <cassel@kernel.org>]

On Wed, Sep 09, 2026 at 12:52:47PM +0200, Niklas Cassel wrote:
> On Tue, 08 Sep 2026 19:47:26 +0800, Pei Xiao wrote:
> > This series fixes use-after-free issues in pata_parport when a protocol
> > module goes away while pi_adapter devices created by it are still
> > attached.
> > 
> > Patch 1 pins the protocol module before the device becomes visible.
> > Previously try_module_get() ran after device_register(), so a forced
> > module unload in between left pi->proto dangling from the moment the
> > device appeared on the bus.
> > 
> > [...]
> 
> Applied to libata/linux.git (for-7.4), thanks!
> 
> [1/2] ata: pata_parport: pin the protocol module before device_register()
>       https://git.kernel.org/libata/linux/c/5d3355c7
> [2/2] ata: pata_parport: unregister devices on protocol unregister
>       https://git.kernel.org/libata/linux/c/d82c5cf6

This series was dropped because of kernel test robot reporting
build error.

(Interestingly, Sashiko did only reported an unrelated pre-existing issue,
but did not report the build error.)


Kind regards,
Niklas