What’s Vulnerable › Vulnerabilities

CVE-2023-52649: drm/vkms: Avoid reading beyond LUT array

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-01 · updated 2026-06-17
• Weakness: CWE-129

Description

In the Linux kernel, the following vulnerability has been resolved: drm/vkms: Avoid reading beyond LUT array When the floor LUT index (drm_fixp2int(lut_index) is the last index of the array the ceil LUT index will point to an entry beyond the array. Make sure we guard against it and use the value of the floor LUT index. v3: - Drop bits from commit description that didn't contribute anything of value

Affected products

• Linux kernel: from 6.6 before 6.6.23; from 6.7 before 6.7.11; from 6.8 before 6.8.2 — fixed in 6.6.23, 6.7.11, 6.8.2

How to fix

Upgrade to a fixed version: Linux kernel 6.6.23, 6.7.11, 6.8.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/046c1184ce60b0a37d48134f17ddbc1f32ce02bd
• https://git.kernel.org/stable/c/2fee84030d12d9fddfa874e4562d71761a129277
• https://git.kernel.org/stable/c/92800aaeff51b8358d1e0a7eb74daf8aa2d7ce9d
• https://git.kernel.org/stable/c/9556c167673057d48ce4a0da675026fe046654c1
• https://git.kernel.org/stable/c/046c1184ce60b0a37d48134f17ddbc1f32ce02bd
• https://git.kernel.org/stable/c/2fee84030d12d9fddfa874e4562d71761a129277
• https://git.kernel.org/stable/c/92800aaeff51b8358d1e0a7eb74daf8aa2d7ce9d
• https://git.kernel.org/stable/c/9556c167673057d48ce4a0da675026fe046654c1

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