CVE-2022-48899

medium

Description

In the Linux kernel, the following vulnerability has been resolved: drm/virtio: Fix GEM handle creation UAF Userspace can guess the handle value and try to race GEM object creation with handle close, resulting in a use-after-free if we dereference the object after dropping the handle's reference. For that reason, dropping the handle's reference must be done *after* we are done dereferencing the object.

References

https://git.kernel.org/stable/c/d01d6d2b06c0d8390adf8f3ba08aa60b5642ef73

https://git.kernel.org/stable/c/adc48e5e408afbb01d261bd303fd9fbbbaa3e317

https://git.kernel.org/stable/c/68bcd063857075d2f9edfed6024387ac377923e2

https://git.kernel.org/stable/c/52531258318ed59a2dc5a43df2eaf0eb1d65438e

https://git.kernel.org/stable/c/19ec87d06acfab2313ee82b2a689bf0c154e57ea

https://git.kernel.org/stable/c/011ecdbcd520c90c344b872ca6b4821f7783b2f8

Details

Source: Mitre, NVD

Published: 2024-08-21

Updated: 2024-09-11

Risk Information

CVSS v2

Base Score: 3.8

Vector: CVSS2#AV:L/AC:H/Au:S/C:N/I:N/A:C

Severity: Low

CVSS v3

Base Score: 4.7

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Severity: Medium