CVE-2026-43295

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.

CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploit Prediction

0.0001

Probability of exploitation

0.02%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Affected Products

Vendor	Product	Versions
linux	linux_kernel	4.6 — 5.10.252
linux	linux_kernel	5.11 — 5.15.202
linux	linux_kernel	5.16 — 6.1.165
linux	linux_kernel	6.2 — 6.6.128
linux	linux_kernel	6.7 — 6.12.75
linux	linux_kernel	6.13 — 6.18.16
linux	linux_kernel	6.19 — 6.19.6

References

Advisories & Patches

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

Frequently Asked Questions

What is CVE-2026-43295? +

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. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-43295? +

CVE-2026-43295 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0001, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-43295? +

CVE-2026-43295 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-43295? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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