What’s Vulnerable › Vulnerabilities

CVE-2021-47570: staging: r8188eu: fix a memory leak in rtw_wx_read32()

• 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: staging: r8188eu: fix a memory leak in rtw_wx_read32() Free "ptmp" before returning -EINVAL.

Affected products

• Linux kernel: from 5.15 before 5.15.6 — fixed in 5.15.6

How to fix

Upgrade to a fixed version: Linux kernel 5.15.6. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/be4ea8f383551b9dae11b8dfff1f38b3b5436e9a
• https://git.kernel.org/stable/c/c8d3775745adacf9784a7a80a82d047051752573
• https://git.kernel.org/stable/c/be4ea8f383551b9dae11b8dfff1f38b3b5436e9a
• https://git.kernel.org/stable/c/c8d3775745adacf9784a7a80a82d047051752573

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