What’s Vulnerable › Vulnerabilities

CVE-2023-54273: xfrm: Fix leak of dev tracker

• 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: 2025-12-30 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: xfrm: Fix leak of dev tracker At the stage of direction checks, the netdev reference tracker is already initialized, but released with wrong *_put() call.

Affected products

• Linux kernel: 6.2 — fixed in 6.4

How to fix

Upgrade to a fixed version: Linux kernel 6.4. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/7d16c515059b3746f2d6a24a74c3ba786a68c2a1
• https://git.kernel.org/stable/c/ec8f32ad9a65a8cbb465b69e154aaec9d2fe45c4

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