SB2025011785 - NULL pointer dereference in Linux kernel pinctrl driver

Description

This security bulletin contains information about 1 security vulnerability.

1) NULL pointer dereference (CVE-ID: CVE-2024-47141)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the pr_fmt(), pinmux_can_be_used_for_gpio(), pin_request(), pin_free(), pinmux_enable_setting(), pinmux_disable_setting() and pinmux_pins_show() functions in drivers/pinctrl/pinmux.c, within the pinctrl_register_one_pin() function in drivers/pinctrl/core.c. A local user can perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/2da32aed4a97ca1d70fb8b77926f72f30ce5fb4b
• https://git.kernel.org/stable/c/5a3e85c3c397c781393ea5fb2f45b1f60f8a4e6e
• https://git.kernel.org/stable/c/c11e2ec9a780f54982a187ee10ffd1b810715c85
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.5