What’s Vulnerable › Vulnerabilities

CVE-2022-50663: net: stmmac: fix possible memory leak in stmmac_dvr_probe()

• Severity: unknown
• 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: 2025-12-09 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: fix possible memory leak in stmmac_dvr_probe() The bitmap_free() should be called to free priv->af_xdp_zc_qps when create_singlethread_workqueue() fails, otherwise there will be a memory leak, so we add the err path error_wq_init to fix it.

Affected products

• Linux kernel: 5.13 — fixed in 6.2

How to fix

Upgrade to a fixed version: Linux kernel 6.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/446757787baf99b7db15cb347783c45a37bfe21f
• https://git.kernel.org/stable/c/96e50897029f65222ef76cfe9bc802321fcea33b
• https://git.kernel.org/stable/c/a137f3f27f9290933fe7e40e6dc8a445781c31a2
• https://git.kernel.org/stable/c/b59253e32c203a20bce15dca80890b7d268bacd7

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