#VU102149 NULL pointer dereference in Linux kernel - CVE-2024-56540

Vulnerability identifier: #VU102149

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-2024-56540

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 ivpu_jsm_pwr_d0i3_enter(), ivpu_jsm_hws_setup_priority_bands(), ivpu_jsm_dct_enable() and ivpu_jsm_dct_disable() functions in drivers/accel/ivpu/ivpu_jsm_msg.c, within the ivpu_ipc_receive() and ivpu_ipc_send_receive_active() functions in drivers/accel/ivpu/ivpu_ipc.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
https://git.kernel.org/stable/c/362ef76020ea6219a4df4ac5b738672b59527239
https://git.kernel.org/stable/c/5eaa497411197c41b0813d61ba3fbd6267049082
https://git.kernel.org/stable/c/cac822772c4dc27a285f09caf30072ab76d2bf38

---

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.