In the Linux kernel, the following vulnerability has been resolved:
gpio: mpsse: ensure worker is torn down
When an IRQ worker is running, unplugging the device would cause a crash. The sealevel hardware this driver was written for was not hotpluggable, so I never realized it.
This change uses a spinlock to protect a list of workers, which it tears down on disconnect.
Exploitability
AV:LAC:LPR:LUI:NScope
S:UImpact
C:NI:NA:H5.5/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H