CVE-2022-48656: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: dmaengine: ti: k3-udma-private: Fix refcount leak bug in of_xudma_dev_get() We should call of_node_put() for the reference returned by of_parse_phandle() in fail path or when it is not used anymore. Here we only need to move the of_node_put() before the check.

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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-401 CWE-401

Affected Products

Vendor	Product	Versions
linux	linux_kernel	5.6.0 — 5.10.146
linux	linux_kernel	5.11.0 — 5.15.71
linux	linux_kernel	5.16.0 — 5.19.12

References

Advisories & Patches

https://git.kernel.org/stable/c/a17df55bf6d536712da6902a83db82b82e67d5a2 https://git.kernel.org/stable/c/aa11dae059a439af82bae541b134f8f53ac177b5 https://git.kernel.org/stable/c/dd5a6c5a08752b613e83ad2cb5133e72a64b876d https://git.kernel.org/stable/c/f9fdb0b86f087c2b7f6c6168dd0985a3c1eda87e https://git.kernel.org/stable/c/a17df55bf6d536712da6902a83db82b82e67d5a2 https://git.kernel.org/stable/c/aa11dae059a439af82bae541b134f8f53ac177b5 https://git.kernel.org/stable/c/dd5a6c5a08752b613e83ad2cb5133e72a64b876d https://git.kernel.org/stable/c/f9fdb0b86f087c2b7f6c6168dd0985a3c1eda87e

Frequently Asked Questions

What is CVE-2022-48656? +

In the Linux kernel, the following vulnerability has been resolved: dmaengine: ti: k3-udma-private: Fix refcount leak bug in of_xudma_dev_get() We should call of_node_put() for the reference returned by of_parse_phandle() in fail path or when it is not used anymore. Here we only need to move the of_node_put() before the check. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-48656? +

CVE-2022-48656 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-2022-48656? +

CVE-2022-48656 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-2022-48656? +

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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CVE-2022-48656