Linux Kernel up to 6.6.32/6.9.3 of_property of_pci_prop_intr_map null pointer dereference

Summaryinfo

A vulnerability has been found in Linux Kernel up to 6.6.32/6.9.3 and classified as critical. The affected element is the function of_pci_prop_intr_map of the component of_property. Performing a manipulation results in null pointer dereference. This vulnerability is reported as CVE-2024-34030. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel up to 6.6.32/6.9.3. This affects the function of_pci_prop_intr_map of the component of_property. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: PCI: of_property: Return error for int_map allocation failure Return -ENOMEM from of_pci_prop_intr_map() if kcalloc() fails to prevent a NULL pointer dereference in this case. [bhelgaas: commit log]

The advisory is shared at git.kernel.org. This vulnerability is uniquely identified as CVE-2024-34030. Technical details are known, but no exploit is available.

Upgrading to version 6.6.33 or 6.9.4 eliminates this vulnerability. Applying the patch b5f31d1470c4/598e4a37a2f8/e6f7d27df5d2 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.

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Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 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
• 6.9.0
• 6.9.1
• 6.9.2
• 6.9.3

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

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CPE 2.2info

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