What’s Vulnerable › Vulnerabilities

CVE-2026-43295: rapidio: replace rio_free_net() with kfree() in rio_scan_alloc_net()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-08 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: rapidio: replace rio_free_net() with kfree() in rio_scan_alloc_net() When idtab allocation fails, net is not registered with rio_add_net() yet, so kfree(net) is sufficient to release the memory. Set mport->net to NULL to avoid dangling pointer.

Affected products

• Linux kernel: from 4.6 before 5.10.252; from 5.11 before 5.15.202; from 5.16 before 6.1.165; from 6.2 before 6.6.128; from 6.7 before 6.12.75; from 6.13 before 6.18.16 — fixed in 5.10.252, 5.15.202, 6.1.165, 6.12.75, 6.18.16, 6.19.6

How to fix

Upgrade to a fixed version: Linux kernel 5.10.252, 5.15.202, 6.1.165, 6.12.75. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/34a4f233df5eef5f1f113b2196142c0568b387f8
• https://git.kernel.org/stable/c/649c2e853608cad0b0cba545555d168e67f094b3
• https://git.kernel.org/stable/c/666183dcdd9ad3b8156a1df7f204f728f720380f
• https://git.kernel.org/stable/c/78812c4fb7ed242d5961bf1337a49070d6487c94
• https://git.kernel.org/stable/c/83e579c2f7f6b1706323d744833b26470049dcc2
• https://git.kernel.org/stable/c/87272e3e70ec4b666885bd520ff77463c11444ef
• https://git.kernel.org/stable/c/e5a732bfe29451e16abf9c6f07ce5948b22f3d59
• https://git.kernel.org/stable/c/fecf292c6691970897396190855aa38826b7104e

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