CVE-2022-49046: linux kernel Null Dereference — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: i2c: dev: check return value when calling dev_set_name() If dev_set_name() fails, the dev_name() is null, check the return value of dev_set_name() to avoid the null-ptr-deref.

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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	4.4.225 — 4.5
linux	linux_kernel	4.9.225 — 4.10
linux	linux_kernel	4.14.182 — 4.15
linux	linux_kernel	4.19.125 — 4.20
linux	linux_kernel	5.4.43 — 5.5
linux	linux_kernel	5.6.15 — 5.15.35
linux	linux_kernel	5.16 — 5.17.4
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/2f345bb14ad4744950499ff222e2899209297afa https://git.kernel.org/stable/c/993eb48fa199b5f476df8204e652eff63dd19361 https://git.kernel.org/stable/c/c74d77a2d07744147d734138acd6ce9dba715e5d

Other References

https://git.kernel.org/stable/c/2e539b17d4cbe5fb8b5152dd9a6e4a8828f97db2 https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html

Frequently Asked Questions

What is CVE-2022-49046? +

In the Linux kernel, the following vulnerability has been resolved: i2c: dev: check return value when calling dev_set_name() If dev_set_name() fails, the dev_name() is null, check the return value of dev_set_name() to avoid the null-ptr-deref. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-49046? +

CVE-2022-49046 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-2022-49046? +

CVE-2022-49046 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-2022-49046? +

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-2022-49046