CVE-2023-52649: linux kernel — Fix

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

Is your site exposed to CVE-2023-52649?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-129 CWE-129

Affected Products

Vendor	Product	Versions
linux	linux_kernel	6.6 — 6.6.23
linux	linux_kernel	6.7 — 6.7.11
linux	linux_kernel	6.8 — 6.8.2

References

Advisories & Patches

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

Frequently Asked Questions

What is CVE-2023-52649? +

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 It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2023-52649? +

CVE-2023-52649 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2023-52649? +

CVE-2023-52649 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-52649? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2025-0657

A weakness in Automated Logic and Carrier i-Vu Gen5 router on driver version drv_gen5_106-01-2380, allows malformed packets to be sent …

CVE-2025-66559

Taiko Alethia is an Ethereum-equivalent, permissionless, based rollup designed to scale Ethereum without compromising its fundamental properties. In 2.3.1 and …

CVE-2023-31309

Improper validation in Power Management Firmware (PMFW) may allow an attacker with privileges to pass malformed workload arguments when exporting …

CVE-2024-45569 9.8

Memory corruption while parsing the ML IE due to invalid frame content.

CVE-2024-24563 9.8

Vyper is a Pythonic Smart Contract Language for the Ethereum Virtual Machine. Arrays can be keyed by a signed integer, …

CVE-2024-31581 9.8

FFmpeg version n6.1 was discovered to contain an improper validation of array index vulnerability in libavcodec/cbs_h266_syntax_template.c. This vulnerability allows attackers …

CVE-2023-52649