In the Linux kernel, the following vulnerability has been resolved: vfio/fsl-mc: Block calling interrupt handler without trigger The eventfd_ctx trigger pointer of the vfio_fsl_mc_irq object is initially NULL and may become NULL if the user sets the trigger eventfd to -1. The interrupt handler itself is guaranteed that trigger is always valid between request_irq() and free_irq(), but the loopback testing mechanisms to invoke the handler function need to test the trigger. The triggering and setting ioctl paths both make use of igate and are therefore mutually exclusive. The vfio-fsl-mc driver does not make use of irqfds, nor does it support any sort of masking operations, therefore unlike vfio-pci and vfio-platform, the flow can remain essentially unchanged.
History

Wed, 11 Sep 2024 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-04-05T08:24:43.916Z

Updated: 2024-09-11T17:33:43.653Z

Reserved: 2024-02-19T14:20:24.180Z

Link: CVE-2024-26814

cve-icon Vulnrichment

Updated: 2024-09-11T12:42:18.366Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-04-05T09:15:09.393

Modified: 2024-06-25T22:15:23.410

Link: CVE-2024-26814

cve-icon Redhat

Severity : Low

Publid Date: 2024-04-05T00:00:00Z

Links: CVE-2024-26814 - Bugzilla