Linux Kernel up to 5.18.3 mips_cpc_default_phys_base reference count

Summaryinfo

A vulnerability described as critical has been identified in Linux Kernel up to 5.18.3. This vulnerability affects the function mips_cpc_default_phys_base. Such manipulation leads to reference count. This vulnerability is uniquely identified as CVE-2022-49324. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.18.3. It has been rated as critical. Affected by this issue is the function mips_cpc_default_phys_base. The manipulation with an unknown input leads to a reference count vulnerability. Using CWE to declare the problem leads to CWE-911. The product uses a reference count to manage a resource, but it does not update or incorrectly updates the reference count. Impacted is availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: mips: cpc: Fix refcount leak in mips_cpc_default_phys_base Add the missing of_node_put() to release the refcount incremented by of_find_compatible_node().

The advisory is available at git.kernel.org. This vulnerability is handled as CVE-2022-49324 since 02/26/2025. Technical details are known, but there is no available exploit.

Upgrading to version 4.14.283, 4.19.247, 5.4.198, 5.10.122, 5.15.47, 5.17.15 or 5.18.4 eliminates this vulnerability. Applying the patch bed702566dcdb6ebe300bc0c62bf3600cf4d5874/961ee8a6eeef4632a215d995d837b204f8c7c2d4/cc0aed22d33ced9e266c50bdf1cbe668c5acfdf8/c667b3872a4c435a3f29d4e15971cd8c378b0043/1699ec1bfb59304a788901474f6bb003f7831b61/8f843cdfc202caaa5d67db3395d893e56362e43a/aae6b4bb63c694bc91714412718f15468407fe51/4107fa700f314592850e2c64608f6ede4c077476 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

• 4.14.282
• 4.19.246
• 5.4.197
• 5.10.121
• 5.15.0
• 5.15.1
• 5.15.2
• 5.15.3
• 5.15.4
• 5.15.5
• 5.15.6
• 5.15.7
• 5.15.8
• 5.15.9
• 5.15.10
• 5.15.11
• 5.15.12
• 5.15.13
• 5.15.14
• 5.15.15
• 5.15.16
• 5.15.17
• 5.15.18
• 5.15.19
• 5.15.20
• 5.15.21
• 5.15.22
• 5.15.23
• 5.15.24
• 5.15.25
• 5.15.26
• 5.15.27
• 5.15.28
• 5.15.29
• 5.15.30
• 5.15.31
• 5.15.32
• 5.15.33
• 5.15.34
• 5.15.35
• 5.15.36
• 5.15.37
• 5.15.38
• 5.15.39
• 5.15.40
• 5.15.41
• 5.15.42
• 5.15.43
• 5.15.44
• 5.15.45
• 5.15.46
• 5.17.0
• 5.17.1
• 5.17.2
• 5.17.3
• 5.17.4
• 5.17.5
• 5.17.6
• 5.17.7
• 5.17.8
• 5.17.9
• 5.17.10
• 5.17.11
• 5.17.12
• 5.17.13
• 5.17.14
• 5.18.0
• 5.18.1
• 5.18.2
• 5.18.3

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

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CPE 2.2info

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CVSSv4info

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Exploitinginfo

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Sourcesinfo

Entryinfo

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