CVE-2022-38457: There is an UAF vulnerability in vmwgfx driver

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-09-09 · updated 2026-06-17
Weakness: CWE-416

Description

A use-after-free(UAF) vulnerability was found in function 'vmw_cmd_res_check' in drivers/gpu/vmxgfx/vmxgfx_execbuf.c in Linux kernel's vmwgfx driver with device file '/dev/dri/renderD128 (or Dxxx)'. This flaw allows a local attacker with a user account on the system to gain privilege, causing a denial of service(DoS).

Affected products

Linux kernel: from 4.20 before 6.1.7; 6.2-rc1, 6.2-rc2, 6.2-rc3, 6.2-rc4 — fixed in 6.1.7

How to fix

Upgrade to a fixed version: Linux kernel 6.1.7. Check the vendor advisory for mitigations.

References

https://bugzilla.openanolis.cn/show_bug.cgi?id=2074
https://bugzilla.openanolis.cn/show_bug.cgi?id=2074

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