#VU90598 NULL pointer dereference in Linux kernel - CVE-2024-26747

Vulnerability identifier: #VU90598

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-2024-26747

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 usb_role_switch_get(), fwnode_usb_role_switch_get(), EXPORT_SYMBOL_GPL(), usb_role_switch_find_by_fwnode() and usb_role_switch_register() functions in drivers/usb/roles/class.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/e279bf8e51893e1fe160b3d8126ef2dd00f661e1
https://git.kernel.org/stable/c/ef982fc41055fcebb361a92288d3225783d12913
https://git.kernel.org/stable/c/0158216805ca7e498d07de38840d2732166ae5fa
https://git.kernel.org/stable/c/4b45829440b1b208948b39cc71f77a37a2536734
https://git.kernel.org/stable/c/01f82de440f2ab07c259b7573371e1c42e5565db
https://git.kernel.org/stable/c/1c9be13846c0b2abc2480602f8ef421360e1ad9e

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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.