Use After Free in Linux
CVE-2022-48899
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.
Vulnerability class: Use-After-Free
EPSS: 0.002 (14.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux — versions 62fb7a5e10962ac6ae2a2d2dbd3aedcb2a3e3257, 4.4, 0
- Linux Linux_kernel — versions 6.2
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2022-48899?
- CVE-2022-48899 is a high-severity vulnerability in Linux, classified under Use After Free. CVSS score: 7.8/10. Published 2024-08-21.
- How severe is CVE-2022-48899?
- High severity. CVSS v3 base score is 7.8 out of 10.