UBUNTU-CVE-2026-53344

In the Linux kernel, the following vulnerability has been resolved: pinctrl: mcp23s08: Initialize mcp-dev and mcp-addr before regmap init Regmap initialization triggers regcachemaplepopulate which attempts SPI read to populate cache. SPI read requires mcp-dev and mcp-addr to be set, without them,...

CVE-2026-53344

A flaw was found in the Linux kernel's pinctrl: mcp23s08 driver. During the initialization of the regmap register map for the mcp23s08 component, an attempt to perform an SPI Serial Peripheral Interface read occurs before critical device parameters mcp-dev and mcp-addr are properly set. This...

Linux Distros Unpatched Vulnerability : CVE-2026-43087

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: pinctrl: mcp23s08: Disable all pin interrupts during probe A chip being probed may have the...

CVE-2026-43087

In the Linux kernel, the following vulnerability has been resolved: pinctrl: mcp23s08: Disable all pin interrupts during probe A chip being probed may have the interrupt-on-change feature enabled on some of its pins, for example after a reboot. This can cause the chip to generate interrupts for...

CVE-2026-43087

In the Linux kernel, the following vulnerability has been resolved: pinctrl: mcp23s08: Disable all pin interrupts during probe A chip being probed may have the interrupt-on-change feature enabled on some of its pins, for example after a reboot. This can cause the chip to generate interrupts for...

PT-2026-37397

In the Linux kernel, the following vulnerability has been resolved: pinctrl: mcp23s08: Disable all pin interrupts during probe A chip being probed may have the interrupt-on-change feature enabled on some of its pins, for example after a reboot. This can cause the chip to generate interrupts for...

OESA-2025-2410 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: pinctrl: mcp23s08: Fix sleeping in atomic context due to regmap locking If a device uses MCP23xxx IO expander to receive IRQs, the following bug can happen: BUG:...

OESA-2025-2409 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: pinctrl: mcp23s08: Fix sleeping in atomic context due to regmap locking If a device uses MCP23xxx IO expander to receive IRQs, the following bug can happen: BUG:...

The vulnerabilities of the functions mcp_pinconf_get() and mcp_pinconf_set() in the Linux kernel driver (drivers/pinctrl/pinctrl-mcp23s08.c), which allow a hacker to cause service failures.

The vulnerability of the mcppinconfget and mcppinconfset functions in the Linux kernel driver drivers/pinctrl/pinctrl-mcp23s08.c is related to insufficient resource locking. Exploiting this vulnerability could allow an attacker to cause a service failure...

UBUNTU-CVE-2024-57889

In the Linux kernel, the following vulnerability has been resolved: pinctrl: mcp23s08: Fix sleeping in atomic context due to regmap locking If a device uses MCP23xxx IO expander to receive IRQs, the following bug can happen: BUG: sleeping function called from invalid context at...

CVE-2024-57889 pinctrl: mcp23s08: Fix sleeping in atomic context due to regmap locking

In the Linux kernel, the following vulnerability has been resolved: pinctrl: mcp23s08: Fix sleeping in atomic context due to regmap locking If a device uses MCP23xxx IO expander to receive IRQs, the following bug can happen: BUG: sleeping function called from invalid context at...