Linux Kernel up to 5.18.10 ti_dra7_xbar_route_allocate of_parse_phandle reference count

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.18.10. It has been classified as problematic. Affected by this vulnerability is the function of_parse_phandle of the component ti_dra7_xbar_route_allocate. This manipulation causes reference count. This vulnerability appears as CVE-2022-49652. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic was found in Linux Kernel up to 5.18.10. Affected by this vulnerability is the function of_parse_phandle of the component ti_dra7_xbar_route_allocate. The manipulation with an unknown input leads to a reference count vulnerability. The CWE definition for the vulnerability is CWE-911. The product uses a reference count to manage a resource, but it does not update or incorrectly updates the reference count. As an impact it is known to affect availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: dmaengine: ti: Fix refcount leak in ti_dra7_xbar_route_allocate of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not needed anymore. Add missing of_node_put() in to fix this.

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2022-49652 since 02/26/2025. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 240793 (SUSE SLES12 Security Update : kernel (SUSE-SU-2025:01983-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.9.323, 4.14.288, 4.19.252, 5.4.205, 5.10.130, 5.15.54 or 5.18.11 eliminates this vulnerability. Applying the patch 452b9dfd7aca96befce22634fadb111737f22bbe/61b4ef19c346dc21ab1d4f39f5c412e3037b2bdc/3bd66010398871807c1cebacee07d60ded1b1402/b31ab132561c7f1b6459039152b8d09e44eb3565/37147e22cd8dfc0412495cb361708836157a4486/cb9813d7eae917acd34436160a278b8b5d48ca53/b5a817f8d62e9e13280928f3756e54854ae4962e/c132fe78ad7b4ce8b5d49a501a15c29d08eeb23a 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 vulnerability database at Tenable (240793). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 4.9.322
• 4.14.287
• 4.19.251
• 5.4.204
• 5.10.129
• 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
• 5.15.47
• 5.15.48
• 5.15.49
• 5.15.50
• 5.15.51
• 5.15.52
• 5.15.53
• 5.18.0
• 5.18.1
• 5.18.2
• 5.18.3
• 5.18.4
• 5.18.5
• 5.18.6
• 5.18.7
• 5.18.8
• 5.18.9
• 5.18.10

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

Threat Intelligenceinfo

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Timelineinfo

Sourcesinfo

Entryinfo

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