CVE-2026-64234
Published Jul 24, 2026
Modified Jul 30, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: tty: serial: pch_uart: add check for dma_alloc_coherent() Add a check for dma_alloc_coherent() failure to prevent a potential NULL pointer dereference in dma_handle_rx(). Properly release DMA channels and the PCI device reference using a goto ladder if the allocation fails.
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EPSS — Exploit Prediction
0.0017
Probability of exploitation
0.06%
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.
References
Other References
https://git.kernel.org/stable/c/5f2e2a240dc1846e049bc67e9c3cdf5b031d08bf
https://git.kernel.org/stable/c/66f8bfea055b23719b4fd6ce207c44de37d82a59
https://git.kernel.org/stable/c/6dd5c0ea139b586ad5a091677056dafd405cfe82
https://git.kernel.org/stable/c/6fe472c1bbbe238e91141f7cabc1226e96a60d43
https://git.kernel.org/stable/c/760df81763b391bb5f0dcb0b7597b736da753ae4
https://git.kernel.org/stable/c/d846df2dfbc2469a688833b4cc4f8aa80672bde8
https://git.kernel.org/stable/c/d8d53a343ebe74274ca17b1e1993042e99f8c863
https://git.kernel.org/stable/c/daea997bb244aeb50cbb2e5e075fb446a6cf068f
Frequently Asked Questions
What is CVE-2026-64234? +
In the Linux kernel, the following vulnerability has been resolved:
tty: serial: pch_uart: add check for dma_alloc_coherent()
Add a check for dma_alloc_coherent() failure to prevent a potential
NULL pointer dereference in dma_handle_rx(). Properly release DMA
channels and the PCI device reference using a goto ladder if the
allocation fails.
How do I check if I'm vulnerable to CVE-2026-64234? +
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.