#VU91228 NULL pointer dereference in Linux kernel - CVE-2023-52788

Vulnerability identifier: #VU91228

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-2023-52788

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 i915_perf_open_ioctl(), i915_perf_add_config_ioctl() and i915_perf_remove_config_ioctl() functions in drivers/gpu/drm/i915/i915_perf.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/1566e8be73fd5fa424e88d2a4cffdc34f970f0e1
http://git.kernel.org/stable/c/55db76caa782baa4a1bf02296e2773c38a524a3e
http://git.kernel.org/stable/c/bf8e105030083e7b71591cdf437e464bcd8a0c09
http://git.kernel.org/stable/c/10f49cdfd5fb342a1a9641930dc040c570694e98
http://git.kernel.org/stable/c/471aa951bf1206d3c10d0daa67005b8e4db4ff83

---

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.