CVE-2022-34494: linux linux_kernel Double Free
Vulnerability summary
CVE-2022-34494 is a medium (CVSS 5.5) Double Free vulnerability in linux linux_kernel. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 21.4% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 11 · Related 11Timeline
- 26-06-2022PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
rpmsg_virtio_add_ctrl_dev in drivers/rpmsg/virtio_rpmsg_bus.c in the Linux kernel before 5.18.4 has a double free.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.29%
Chance of exploitation in the next 30 days
Percentile
21%
Versus all other CVEs
30-day change
Increase +0.01 pp
From 0.28% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu65 products
- linux< 5.15.0-48.54
- linux-aws< 5.15.0-1020.24
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
- linux-aws-5.13All versions (No fix recorded)
Debian1 product
- linux< 5.18.5-1
Linux1 product
- linux_kernel< 5.18.4
3 vendors · 67 products
References
18 links- github.com/torvalds/linux/commit/1680939e9ecf7764fba8689cfb3429c2fe2bb23cX Refsource MISCPatchThird Party Advisory
