{"cve":"CVE-2026-64234","nvd":{"published":"2026-07-24T16:16:52.610","modified":"2026-08-12T19:13:20.623","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ntty: serial: pch_uart: add check for dma_alloc_coherent()\n\nAdd a check for dma_alloc_coherent() failure to prevent a potential\nNULL pointer dereference in dma_handle_rx(). Properly release DMA\nchannels and the PCI device reference using a goto ladder if the\nallocation fails.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-476"],"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"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:46:40.600842820+00:00"},"epss":{"cve":"CVE-2026-64234","score":0.00115,"percentile":0.01506,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}