Re: [PATCH v2 0/2] ATA port deferred qc fixes

[Damien Le Moal <dlemoal@kernel.org>]

On 2/21/26 7:14 AM, Damien Le Moal wrote:
> The first patch addresses a use-after-free issue when a deferred qc
> times out. The second patch avoids a call to a potentially sleeping
> function while a port spinlock is held.
> 
> Changes from v1:
>  - Corrected typo in patch 1 message, improved comment in code and added
>    a WARN_ON_ONCE() call to verify that a timed out qc is not active.
>  - Fixed patch 2 to not call ata_scsi_requeue_deferred_qc() without the
>    port lock held. This call is in fact removed: it is not needed as
>    ata_scsi_requeue_deferred_qc() is called in EH, which is always run
>    when removing a port.
> 
> Damien Le Moal (2):
>   ata: libata-eh: correctly handle deferred qc timeouts
>   ata: libata-core: fix cancellation of a port deferred qc work
> 
>  drivers/ata/libata-core.c |  8 +++-----
>  drivers/ata/libata-eh.c   | 22 +++++++++++++++++++---
>  2 files changed, 22 insertions(+), 8 deletions(-)

Applied to for-7.0-fixes.


-- 
Damien Le Moal
Western Digital Research