ACK: [SRU][Jammy][Focal][PATCH 0/1] CVE-2023-4134

[Tim Gardner]

On 1/9/24 7:16 AM, Bethany Jamison wrote:
> [Impact]
> 
> It was discovered that a race condition existed in the Cypress touchscreen
> driver in the Linux kernel during device removal, leading to a use-after-
> free vulnerability. A physically proximate attacker could use this to cause
> a denial of service (system crash) or possibly execute arbitrary code.
> 
> [Fix]
> 
> Clean cherry-pick.
> 
> [Test Case]
> 
> Compile and boot test.
> 
> [Where problems could occur]
> 
> Issues could happen when a Cypress touchscreen device or driver is removed.
> 
> Duoming Zhou (1):
>    Input: cyttsp4_core - change del_timer_sync() to timer_shutdown_sync()
> 
>   drivers/input/touchscreen/cyttsp4_core.c | 3 +--
>   1 file changed, 1 insertion(+), 2 deletions(-)
> 
Acked-by: Tim Gardner <tim.gardner at canonical.com>
-- 
-----------
Tim Gardner
Canonical, Inc