What’s Vulnerable › Vulnerabilities

CVE-2022-1976

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-08-31 · updated 2026-06-17
• Weakness: CWE-416

Description

A flaw was found in the Linux kernel’s implementation of IO-URING. This flaw allows an attacker with local executable permission to create a string of requests that can cause a use-after-free flaw within the kernel. This issue leads to memory corruption and possible privilege escalation.

Affected products

• Linux kernel: from 5.17.3 before 5.18.6 — fixed in 5.18.6

How to fix

Upgrade to a fixed version: Linux kernel 5.18.6. Check the vendor advisory for mitigations.

References

• https://bugzilla.redhat.com/show_bug.cgi?id=2092549
• https://security.netapp.com/advisory/ntap-20230214-0005/
• https://bugzilla.redhat.com/show_bug.cgi?id=2092549
• https://security.netapp.com/advisory/ntap-20230214-0005/

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