What’s Vulnerable › Vulnerabilities

CVE-2021-47524: serial: liteuart: fix minor-number leak on probe errors

• Severity: medium (CVSS 5.5 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: 2024-05-24 · updated 2026-06-17
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: serial: liteuart: fix minor-number leak on probe errors Make sure to release the allocated minor number before returning on probe errors.

Affected products

• Linux kernel: from 5.11 before 5.15.7; 5.16-rc1, 5.16-rc2, 5.16-rc3 — fixed in 5.15.7

How to fix

Upgrade to a fixed version: Linux kernel 5.15.7. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/888fc81107cacd2a4f681bac7bb785cef868214f
• https://git.kernel.org/stable/c/dd5e90b16cca8a697cbe17b72e2a5f49291cabb2
• https://git.kernel.org/stable/c/888fc81107cacd2a4f681bac7bb785cef868214f
• https://git.kernel.org/stable/c/dd5e90b16cca8a697cbe17b72e2a5f49291cabb2

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