CVE-2024-49871: linux kernel Null Dereference — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: Input: adp5589-keys - fix NULL pointer dereference We register a devm action to call adp5589_clear_config() and then pass the i2c client as argument so that we can call i2c_get_clientdata() in order to get our device object. However, i2c_set_clientdata() is only being set at the end of the probe function which means that we'll get a NULL pointer dereference in case the probe function fails early.

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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	5.11 — 5.15.168
linux	linux_kernel	5.16 — 6.1.113
linux	linux_kernel	6.2 — 6.6.55
linux	linux_kernel	6.7 — 6.10.14
linux	linux_kernel	6.11 — 6.11.3
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/122b160561f6429701a0559a0f39b0ae309488c6 https://git.kernel.org/stable/c/34e304cc53ae5d3c8e3f08b41dd11e0d4f3e01ed https://git.kernel.org/stable/c/4449fedb8a710043fc0925409eba844c192d4337 https://git.kernel.org/stable/c/7c3f04223aaf82489472d614c6decee5a1ce8d7f https://git.kernel.org/stable/c/9a38791ee79bd17d225c15a6d1479448be127a59 https://git.kernel.org/stable/c/fb5cc65f973661241e4a2b7390b429aa7b330c69

Other References

https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Frequently Asked Questions

What is CVE-2024-49871? +

In the Linux kernel, the following vulnerability has been resolved: Input: adp5589-keys - fix NULL pointer dereference We register a devm action to call adp5589_clear_config() and then pass the i2c client as argument so that we can call i2c_get_clientdata() in order to get our device object. However, i2c_set_clientdata() is only being set at the end of the probe function which means that we'll get a NULL pointer dereference in case the probe function fails early. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-49871? +

CVE-2024-49871 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-2024-49871? +

CVE-2024-49871 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-2024-49871? +

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-2024-49871