What’s Vulnerable › Vulnerabilities

CVE-2026-43283: net: ethernet: ec_bhf: Fix dma_free_coherent() dma handle

• Severity: high (CVSS 8.8 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: 2026-05-06 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: ec_bhf: Fix dma_free_coherent() dma handle dma_free_coherent() in error path takes priv->rx_buf.alloc_len as the dma handle. This would lead to improper unmapping of the buffer. Change the dma handle to priv->rx_buf.alloc_phys.

Affected products

• Linux kernel: from 3.15.1 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/0f589ee54fd6d76d3f75e745f7f12c64cbd749e5
• https://git.kernel.org/stable/c/1b1371cd4032ae859838ebc74215f569987bb197
• https://git.kernel.org/stable/c/1b1d3c5d58a80a19d017a409aa2308162bab5bbf
• https://git.kernel.org/stable/c/1e300c33ef3cc544c2b9c693778fe9490cfe9184
• https://git.kernel.org/stable/c/7e54ff938bebb173822b4c38b33fc164c1cabf92
• https://git.kernel.org/stable/c/8320727be7ff704e07c87624efc2a4a75f54b3ce
• https://git.kernel.org/stable/c/accd0599bc8e73b962247c6c6c70ca7aa1f8e8d0
• https://git.kernel.org/stable/c/ffe68c3766997d82e9ccaf1cdbd47eba269c4aa2

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