Linux Kernel up to 5.18.5 kernel/irq/manage.c free_irq information disclosure

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.18.5. It has been declared as problematic. This affects the function free_irq of the file kernel/irq/manage.c. Executing a manipulation can lead to information disclosure. This vulnerability is registered as CVE-2022-49724. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 5.18.5 and classified as problematic. This vulnerability affects the function free_irq of the file kernel/irq/manage.c. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: tty: goldfish: Fix free_irq() on remove Pass the correct dev_id to free_irq() to fix this splat when the driver is unbound: WARNING: CPU: 0 PID: 30 at kernel/irq/manage.c:1895 free_irq Trying to free already-free IRQ 65 Call Trace: warn_slowpath_fmt free_irq goldfish_tty_remove platform_remove device_remove device_release_driver_internal device_driver_detach unbind_store drv_attr_store ...

The advisory is available at git.kernel.org. This vulnerability was named CVE-2022-49724 since 02/26/2025. The exploitation appears to be difficult. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

Upgrading to version 4.14.285, 4.19.249, 5.4.200, 5.10.124, 5.15.49 or 5.18.6 eliminates this vulnerability. Applying the patch c4b0b8edccb0cfb15a8cecf4161e0571d3daac64/c83a1d40dc624070a203eb383ef9fb60eb634136/f7183c76d500324b8b5bd0af5e663cfa57b7b836/65ca4db68b6819244df9024aea4be55edf8af1ef/fb15e79cacddfbc62264e6e807bde50ad688e988/a6fcd7ffd76a9c1d998a2d02d518c78a55c5bed8/499e13aac6c762e1e828172b0f0f5275651d6512 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

• 4.14.284
• 4.19.248
• 5.4.199
• 5.10.123
• 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
• 5.18.0
• 5.18.1
• 5.18.2
• 5.18.3
• 5.18.4
• 5.18.5

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

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