NULL pointer dereference in Linux kernel drm vmwgfx driver

1) NULL pointer dereference

EUVDB-ID: #VU90558

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-2024-26979

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 vmw_resource_context_res_add(), vmw_cmd_dx_define_query(), vmw_cmd_dx_view_define(), vmw_cmd_dx_so_define(), vmw_cmd_dx_define_shader() and vmw_cmd_dx_define_streamoutput() functions in drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.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

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/c560327d900bab968c2e1b4cd7fa2d46cd429e3d
https://git.kernel.org/stable/c/899e154f9546fcae18065d74064889d08fff62c2
https://git.kernel.org/stable/c/07c3fe923ff7eccf684fb4f8c953d0a7cc8ded73
https://git.kernel.org/stable/c/ff41e0d4f3fa10d7cdd7d40f8026bea9fcc8b000
https://git.kernel.org/stable/c/9cb3755b1e3680b720b74dbedfac889e904605c7
https://git.kernel.org/stable/c/585fec7361e7850bead21fada49a7fcde2f2e791
https://git.kernel.org/stable/c/517621b7060096e48e42f545fa6646fc00252eac

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.