#VU98961 NULL pointer dereference in Linux kernel - CVE-2024-49898

Vulnerability identifier: #VU98961

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-2024-49898

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 subvp_drr_schedulable() and subvp_vblank_schedulable() functions in drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.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/3fc70ae048fe0936761b73b50700a810ff61e853
https://git.kernel.org/stable/c/115b1a3b0944b4d8ef0b4b0c5a625bdd9474131f
https://git.kernel.org/stable/c/367cd9ceba1933b63bc1d87d967baf6d9fd241d2

---

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.