CVE Database›CVE-2024-46738

CVE-2024-46738

kernel: VMCI: Fix use-after-free when removing resource in vmci_resource_remove()

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · September 18, 2024

Updated · October 29, 2026

Description

A use-after-free vulnerability was found in the Linux kernel. When removing a resource from vmci_resource_table in vmci_resource_remove(), the search is performed using the resource handle by comparing context and resource fields. However, it is possible to create two resources with different types but the same handle, for example, the same context and resource fields. When trying to remove one of the resources, vmci_resource_remove() may not remove the intended one, but the object will still be freed as in the case of the datagram type in vmci_datagram_destroy_handle().vmci_resource_table will still hold a pointer to this freed resource, leading to a use-after-free issue.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-416 · Use After Free