Linux Kernel up to 5.15.46/5.17.14/5.18.3 xillybus cleanup_dev reference count

Summaryinfo

A vulnerability has been found in Linux Kernel up to 5.15.46/5.17.14/5.18.3 and classified as critical. Impacted is the function cleanup_dev of the component xillybus. The manipulation leads to reference count. This vulnerability is listed as CVE-2022-49310. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.15.46/5.17.14/5.18.3. It has been rated as critical. This issue affects the function cleanup_dev of the component xillybus. 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. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: char: xillybus: fix a refcount leak in cleanup_dev() usb_get_dev is called in xillyusb_probe. So it is better to call usb_put_dev before xdev is released.

The advisory is shared at git.kernel.org. The identification of this vulnerability is CVE-2022-49310 since 02/26/2025. Technical details are known, but no exploit is available.

Upgrading to version 5.15.47, 5.17.15 or 5.18.4 eliminates this vulnerability. Applying the patch bc8fceda3b89006e8a7dda8a097d36045d044c25/21f1f167d727f3f857e26d509ef5a6d47fd31bc3/e277b95acdab84cd5d2f8d537a37aef6d21e988b/b67d19662fdee275c479d21853bc1239600a798f 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.

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

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 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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Exploitinginfo

Threat Intelligenceinfo

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Entryinfo

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

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