NULL pointer dereference in Linux kernel usb host driver

1) NULL pointer dereference

EUVDB-ID: #VU90561

Risk: Low

CVSSv3.1: 4.8 [AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-26964

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

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 xhci_map_temp_buffer() function in drivers/usb/host/xhci.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

External links

http://git.kernel.org/stable/c/4a49d24fdec0a802aa686a567a3989a9fdf4e5dd
http://git.kernel.org/stable/c/b2c898469dfc388f619c6c972a28466cbb1442ea
http://git.kernel.org/stable/c/620b6cf2f1a270f48d38e6b8ce199c1acb3e90f4
http://git.kernel.org/stable/c/962300a360d24c5be5a188cda48da58a37e4304d
http://git.kernel.org/stable/c/7b6cc33593d7ccfc3011b290849cfa899db46757
http://git.kernel.org/stable/c/be95cc6d71dfd0cba66e3621c65413321b398052

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.