What’s Vulnerable › Vulnerabilities

CVE-2020-36766

• Severity: low (CVSS 3.3 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: 2023-09-18 · updated 2026-06-17

Description

An issue was discovered in the Linux kernel before 5.8.6. drivers/media/cec/core/cec-api.c leaks one byte of kernel memory on specific hardware to unprivileged users, because of directly assigning log_addrs with a hole in the struct.

Affected products

• Linux kernel: before 5.8.6 — fixed in 5.8.6

How to fix

Upgrade to a fixed version: Linux kernel 5.8.6. Check the vendor advisory for mitigations.

References

• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.6
• https://github.com/torvalds/linux/commit/6c42227c3467549ddc65efe99c869021d2f4a570
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.6
• https://github.com/torvalds/linux/commit/6c42227c3467549ddc65efe99c869021d2f4a570

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