What is CVE-2022-2327?

CVE-2022-2327 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.5/10. Published 2022-07-22.

How severe is CVE-2022-2327?

High severity. CVSS v3 base score is 7.5 out of 10.

Use After Free in Linux Kernel

CVE-2022-2327

io_uring use work_flags to determine which identity need to grab from the calling process to make sure it is consistent with the calling process when executing IORING_OP. Some operations are missing some types, which can lead to incorrect reference counts which can then lead to a double free. We recommend upgrading the kernel past commit df3f3bb5059d20ef094d6b2f0256c4bf4127a859

Vulnerability class: Use-After-Free

Published 2022-07-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.003 (17.8th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 17.8% 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
Linux Kernel — versions unspecified

Weakness classification (CWE)

References

git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/ (Patch, Mailing List, Vendor Advisory)
kernel.dance/ (Patch, Third Party Advisory)
security.netapp.com/advisory/ntap-20230203-0009/

Frequently asked questions

What is CVE-2022-2327?: CVE-2022-2327 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.5/10. Published 2022-07-22.
How severe is CVE-2022-2327?: High severity. CVSS v3 base score is 7.5 out of 10.