CVE-2022-49711

In the Linux kernel, the following vulnerability has been resolved: bus: fsl-mc-bus: fix KASAN use-after-free in fsl_mc_bus_remove() In fsl_mc_bus_remove(), mc->root_mc_bus_dev->mc_io is passed to fsl_destroy_mc_io(). However, mc->root_mc_bus_dev is already freed in fsl_mc_device_remove(). Then reference to mc->root_mc_bus_dev->mc_io triggers KASAN use-after-free. To avoid the use-after-free, keep the reference to mc->root_mc_bus_dev->mc_io in a local variable and pass to fsl_destroy_mc_io(). This patch needs rework to apply to kernels older than v5.15.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/161b68b0a728377aaa10a8e14c70e7734f3c9ff7	Patch
https://git.kernel.org/stable/c/720ab105df7bf3eee62d2bddd41526b29d07d045	Patch
https://git.kernel.org/stable/c/928ea98252ad75118950941683893cf904541da9	Patch
https://git.kernel.org/stable/c/ccd1751092341ac120a961835211f9f2e3735963	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:5.19:rc1::::::
	cpe:2.3:o:linux:linux_kernel:5.19:rc2::::::

History

No history.

Information

Published : 2025-02-26 07:01

Updated : 2026-01-21 16:07

NVD link : CVE-2022-49711

Mitre link : CVE-2022-49711

CVE.ORG link : CVE-2022-49711

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

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