CVE-2025-39960

HIGH

Linux Kernel 6.16-6.16.9 - Uninitialized Memory Exposure in gpiolib ACPI GPIO Handling

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: gpiolib: acpi: initialize acpi_gpio_info struct Since commit 7c010d463372 ("gpiolib: acpi: Make sure we fill struct acpi_gpio_info"), uninitialized acpi_gpio_info struct are passed to __acpi_find_gpio() and later in the call stack info->quirks is used in acpi_populate_gpio_lookup. This breaks the i2c_hid_cpi driver: [ 58.122916] i2c_hid_acpi i2c-UNIW0001:00: HID over i2c has not been provided an Int IRQ [ 58.123097] i2c_hid_acpi i2c-UNIW0001:00: probe with driver i2c_hid_acpi failed with error -22 Fix this by initializing the acpi_gpio_info pass to __acpi_find_gpio()

Scores

CVSS v3 7.8
EPSS 0.0014
EPSS Percentile 4.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

Status published
Products (9)
linux/Kernel 6.16.0 - 6.16.9linux
Linux/Linux < 6.16
Linux/Linux 6.16
Linux/Linux 6.16.9 - 6.16.*
Linux/Linux 6.17
Linux/Linux 7c010d463372140006bf96985a306d6cbfc6e118 - 19c839a98c731169f06d32e7c9e00c78a0086ebe
Linux/Linux 7c010d463372140006bf96985a306d6cbfc6e118 - 27d94a2a52cbb54927c0140bd5b978c56e9a283a
linux/linux_kernel 6.17 rc1 (6 CPE variants)
linux/linux_kernel 6.16 - 6.16.9
Published Oct 09, 2025
Tracked Since Feb 18, 2026