What’s Vulnerable › Vulnerabilities

CVE-2026-68333: dpaa2-switch: put MAC endpoint device on disconnect

• 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: 2026-08-10 · updated 2026-08-19

Description

In the Linux kernel, the following vulnerability has been resolved: dpaa2-switch: put MAC endpoint device on disconnect fsl_mc_get_endpoint() returns the MAC endpoint device with a reference taken through device_find_child(). The switch port connect path stores that device in mac->mc_dev and keeps it for the lifetime of the connected MAC object. However, the disconnect path only closes the MAC and frees the dpaa2_mac object. It does not drop the endpoint device reference stored in mac->mc_dev, so every successful connect leaks that device reference when the MAC is later disconnected. Drop the endpoint device reference before freeing the dpaa2_mac object.

Affected products

• Linux kernel: 5.15 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0e9a6811eb6198ab17538cd01fa155d133b238ed
• https://git.kernel.org/stable/c/196f7301537814bef0f5915f87cd73d6d1235c19
• https://git.kernel.org/stable/c/1f4ca61b7a93de3dfa5161bcd38ecb99bb091c38
• https://git.kernel.org/stable/c/26ac2d3602347f0377fbcd5214bc28a9d735ae68
• https://git.kernel.org/stable/c/4c1eabbef7a1707635652e956e39db1269c3af2b
• https://git.kernel.org/stable/c/680eecc850d36a280df9780496bc603fec17b2d6
• https://git.kernel.org/stable/c/c27694ff6748e08fcd2fdba89018439d75b8198f

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