CVE-2023-52850: linux kernel Null Dereference — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: media: hantro: Check whether reset op is defined before use The i.MX8MM/N/P does not define the .reset op since reset of the VPU is done by genpd. Check whether the .reset op is defined before calling it to avoid NULL pointer dereference. Note that the Fixes tag is set to the commit which removed the reset op from i.MX8M Hantro G2 implementation, this is because before this commit all the implementations did define the .reset op.

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CVSS v3.1 Score

5.5

MEDIUM

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

Weakness Type (CWE)

CWE-476 CWE-476

Affected Products

Vendor	Product	Versions
linux	linux_kernel	5.18 — 6.1.63
linux	linux_kernel	6.2 — 6.5.12
linux	linux_kernel	6.6 — 6.6.2

References

Advisories & Patches

https://git.kernel.org/stable/c/24c06295f28335ced3aad53dd4b0a0bae7b9b100 https://git.kernel.org/stable/c/64f55cebb4339ae771e9e7f3f42bee2489e2fa00 https://git.kernel.org/stable/c/66b4c5f980d741f3a47e4b65eeaf2797f2d59294 https://git.kernel.org/stable/c/88d4b23a629ebd34f682f770cb6c2116c851f7b8 https://git.kernel.org/stable/c/24c06295f28335ced3aad53dd4b0a0bae7b9b100 https://git.kernel.org/stable/c/64f55cebb4339ae771e9e7f3f42bee2489e2fa00 https://git.kernel.org/stable/c/66b4c5f980d741f3a47e4b65eeaf2797f2d59294 https://git.kernel.org/stable/c/88d4b23a629ebd34f682f770cb6c2116c851f7b8

Frequently Asked Questions

What is CVE-2023-52850? +

In the Linux kernel, the following vulnerability has been resolved: media: hantro: Check whether reset op is defined before use The i.MX8MM/N/P does not define the .reset op since reset of the VPU is done by genpd. Check whether the .reset op is defined before calling it to avoid NULL pointer dereference. Note that the Fixes tag is set to the commit which removed the reset op from i.MX8M Hantro G2 implementation, this is because before this commit all the implementations did define the .reset op. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-52850? +

CVE-2023-52850 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2023-52850? +

CVE-2023-52850 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-2023-52850? +

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.

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