What’s Vulnerable › Vulnerabilities

CVE-2022-2590

• Severity: high (CVSS 7.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% 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-362

Description

A race condition was found in the way the Linux kernel's memory subsystem handled the copy-on-write (COW) breakage of private read-only shared memory mappings. This flaw allows an unprivileged, local user to gain write access to read-only memory mappings, increasing their privileges on the system.

Affected products

• Linux kernel: from 5.16 before 5.19.6 — fixed in 5.19.6

How to fix

Upgrade to a fixed version: Linux kernel 5.19.6. Check the vendor advisory for mitigations.

References

• https://lore.kernel.org/linux-mm/20220808073232.8808-1-david%40redhat.com/
• https://www.openwall.com/lists/oss-security/2022/08/08/1
• https://lore.kernel.org/linux-mm/20220808073232.8808-1-david%40redhat.com/
• https://www.openwall.com/lists/oss-security/2022/08/08/1

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