What’s Vulnerable › Vulnerabilities

CVE-2026-23133: wifi: ath10k: fix dma_free_coherent() pointer

• 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: 2026-02-14 · updated 2026-10-19
• Weakness: CWE-416

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: ath10k: fix dma_free_coherent() pointer dma_alloc_coherent() allocates a DMA mapped buffer and stores the addresses in XXX_unaligned fields. Those should be reused when freeing the buffer rather than the aligned addresses.

Affected products

• Linux kernel: from 4.16 before 5.10.249; from 5.11 before 5.15.199; from 5.16 before 6.1.162; from 6.2 before 6.6.122; from 6.7 before 6.12.68; from 6.13 before 6.18.8 — fixed in 5.10.249, 5.15.199, 6.1.162, 6.12.68, 6.18.8, 6.6.122

How to fix

Upgrade to a fixed version: Linux kernel 5.10.249, 5.15.199, 6.1.162, 6.12.68. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/07f363f305793baecad41816f73056252f3df61e
• https://git.kernel.org/stable/c/1928851334ecfd6e0d663121ab69ac639d4217a6
• https://git.kernel.org/stable/c/5d6fa4d2c9799c09389588da5118a72d97d87e92
• https://git.kernel.org/stable/c/9282a1e171ad8d2205067e8ec3bbe4e3cef4f29f
• https://git.kernel.org/stable/c/b0ad924332a96550a84b8c0ae5483e7042d65fa9
• https://git.kernel.org/stable/c/e2dda298ef809aa201ea7c0904c4d064f6c497cb
• https://git.kernel.org/stable/c/fc8da65f9fe1bc6802f8240b342cfff4f5c7e841

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