gpio_intel0: <Intel Cherry Trail GPIO Controller> iomem 0xd0000-0xd7fff irq 5 on acpi0
gfree2: gpio_intel0 dev=0xfffff8008bb7fbc0 sc=0xfffff8008dd4e080 mem_res=0xfffff800895d2fc8 KVA=0xffffffff800d0000 size=0x8000
gfree2: stale-cookie OOB target KVA+0x448800 (CTL0) / KVA+0x448804 (CTL1)  [pin -1 -> uint16_t 65535]
gfree2: planted pin8 CTL0=50008000 CTL1=00000002
gfree2: map5 before: pin=-1 intidx=0
gpio_intel0: pin=8 trigger=1 polarity=0 ctrl0=0x50008000 ctrl1=0x00000002
gfree2[CONTROL]: GPIO_ALLOC_INTR(pin8 line5) = 0 cookie=0xfffff8008dd4e190
gfree2[CONTROL]: documented order done; map5 now: pin=-1 intidx=-1 (freed cleanly)
gfree2[DEFECT]: calling GPIO_FREE_INTR on the stale cookie again (map->pin == -1)...
gpio_intel0: gpio_intel_free_intr: stale cookie (pin -1 not mapped)
gfree2[DEFECT]: SURVIVED -- OOB access at KVA+0x448800 / KVA+0x448804 was silent; kernel memory past the 32KB mapdev mapping was read (and bits 0..2 / 8..10 conditionally cleared) by the stale-cookie unmap
gfree2: guest still running; check dmesg for corruption side-effects
gpio_intel0: Failed to alloc GpioIo pin 8 on ResourceSource "\_SB.GPO0"