What is CVE-2022-34494?

CVE-2022-34494 is a medium-severity vulnerability in Linux Kernel, classified under Double Free. CVSS score: 5.5/10. Published 2022-06-26.

How severe is CVE-2022-34494?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Double Free in Linux Kernel

CVE-2022-34494

rpmsg_virtio_add_ctrl_dev in drivers/rpmsg/virtio_rpmsg_bus.c in the Linux kernel before 5.18.4 has a double free.

Vulnerability class: Double Free

Published 2022-06-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.003 (18.6th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 18.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Linux Kernel

Weakness classification (CWE)

CWE-415 — Double Free

References

github.com/torvalds/linux/commit/1680939e9ecf7764fba8689cfb3429c2fe2bb23c (Patch, Third Party Advisory)
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.4 (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2022-34494?: CVE-2022-34494 is a medium-severity vulnerability in Linux Kernel, classified under Double Free. CVSS score: 5.5/10. Published 2022-06-26.
How severe is CVE-2022-34494?: Medium severity. CVSS v3 base score is 5.5 out of 10.