#VU102924 NULL pointer dereference in Linux kernel - CVE-2024-47141

Vulnerability identifier: #VU102924

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-47141

CWE-ID: CWE-476

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

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.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/2da32aed4a97ca1d70fb8b77926f72f30ce5fb4b
https://git.kernel.org/stable/c/5a3e85c3c397c781393ea5fb2f45b1f60f8a4e6e
https://git.kernel.org/stable/c/c11e2ec9a780f54982a187ee10ffd1b810715c85

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.