Linux Kernel Vulnerability in Serial Driver by Intel

CVE-2026-64234

What is CVE-2026-64234?

In the Linux kernel, a vulnerability in the Intel serial driver has been identified where a failure in the dma_alloc_coherent() function can lead to a NULL pointer dereference in dma_handle_rx(). This oversight can result in improper management of DMA channels and PCI device references, potentially leading to system instability. The issue has been addressed by adding a thorough check to prevent such failures and ensure proper resource cleanup during error handling.

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