Linux Kernel up to 6.1.113/6.6.57/6.11.4 pinctrl devm_kasprintf returned null pointer dereference

Summaryinfo

A vulnerability marked as critical has been reported in Linux Kernel up to 6.1.113/6.6.57/6.11.4. Impacted is the function devm_kasprintf of the component pinctrl. This manipulation of the argument returned causes null pointer dereference. This vulnerability is registered as CVE-2024-50069. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.1.113/6.6.57/6.11.4. It has been declared as critical. Affected by this vulnerability is the function devm_kasprintf of the component pinctrl. The manipulation of the argument returned with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: pinctrl: apple: check devm_kasprintf() returned value devm_kasprintf() can return a NULL pointer on failure but this returned value is not checked. Fix this lack and check the returned value. Found by code review.

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2024-50069 since 10/21/2024. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 213470 (Debian dla-4008 : linux-config-6.1 - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.1.114, 6.6.58 or 6.11.5 eliminates this vulnerability. Applying the patch 0a4d4dbef622/fad940e2dd78/4d2296fb7c80/665a58fe663a is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (213470), EUVD (EUVD-2024-44744) and CERT Bund (WID-SEC-2024-3289). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

• Debian Linux
• Amazon Linux 2
• Red Hat Enterprise Linux
• Ubuntu Linux
• SUSE Linux
• Oracle Linux
• Open Source eCryptfs
• NetApp ActiveIQ Unified Manager
• SUSE openSUSE
• RESF Rocky Linux
• IBM QRadar SIEM

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 6.1.113
• 6.6.0
• 6.6.1
• 6.6.2
• 6.6.3
• 6.6.4
• 6.6.5
• 6.6.6
• 6.6.7
• 6.6.8
• 6.6.9
• 6.6.10
• 6.6.11
• 6.6.12
• 6.6.13
• 6.6.14
• 6.6.15
• 6.6.16
• 6.6.17
• 6.6.18
• 6.6.19
• 6.6.20
• 6.6.21
• 6.6.22
• 6.6.23
• 6.6.24
• 6.6.25
• 6.6.26
• 6.6.27
• 6.6.28
• 6.6.29
• 6.6.30
• 6.6.31
• 6.6.32
• 6.6.33
• 6.6.34
• 6.6.35
• 6.6.36
• 6.6.37
• 6.6.38
• 6.6.39
• 6.6.40
• 6.6.41
• 6.6.42
• 6.6.43
• 6.6.44
• 6.6.45
• 6.6.46
• 6.6.47
• 6.6.48
• 6.6.49
• 6.6.50
• 6.6.51
• 6.6.52
• 6.6.53
• 6.6.54
• 6.6.55
• 6.6.56
• 6.6.57
• 6.11.0
• 6.11.1
• 6.11.2
• 6.11.3
• 6.11.4

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

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CPE 2.2info

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Exploitinginfo

Threat Intelligenceinfo

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Sourcesinfo

Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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