#VU102486 NULL pointer dereference in Linux kernel - CVE-2024-56778

Vulnerability identifier: #VU102486

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-2024-56778

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 sti_hqvdp_atomic_check() function in drivers/gpu/drm/sti/sti_hqvdp.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/31c857e7496d34e5a32a6f75bc024d0b06fd646a
https://git.kernel.org/stable/c/6b0d0d6e9d3c26697230bf7dc9e6b52bdb24086f
https://git.kernel.org/stable/c/82a5312f874fb18f045d9658e9bd290e3b0621c0
https://git.kernel.org/stable/c/837eb99ad3340c7a9febf454f41c8e3edb68ac1e
https://git.kernel.org/stable/c/c1ab40a1fdfee732c7e6ff2fb8253760293e47e8

---

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.