#VU90545 NULL pointer dereference in Linux kernel - CVE-2024-35946

Vulnerability identifier: #VU90545

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-2024-35946

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 rtw89_ops_bss_info_changed() and rtw89_ops_remain_on_channel() functions in drivers/net/wireless/realtek/rtw89/mac80211.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/b34d64e9aa5505e3c84570aed5c757f1839573e8
https://git.kernel.org/stable/c/4f11c741908dab7dd48fa5a986b210d4fc74ca8d
https://git.kernel.org/stable/c/7e11a2966f51695c0af0b1f976a32d64dee243b2

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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.