What’s Vulnerable › Vulnerabilities

CVE-2020-36558

• Severity: medium (CVSS 5.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-07-21 · updated 2026-10-08
• Weakness: CWE-362

Description

A race condition in the Linux kernel before 5.5.7 involving VT_RESIZEX could lead to a NULL pointer dereference and general protection fault.

Affected products

• Linux kernel: before 5.5.7 — fixed in 5.5.7

How to fix

Upgrade to a fixed version: Linux kernel 5.5.7. Check the vendor advisory for mitigations.

References

• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5.7
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6cd1ed50efd88261298577cd92a14f2768eddeeb
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5.7
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6cd1ed50efd88261298577cd92a14f2768eddeeb

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