{"cve":"CVE-2026-98754","nvd":{"published":"2026-10-18T16:17:29.203","modified":"2026-10-26T07:17:11.167","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ntty: vcc: hold port lock when clearing tty pointer in vcc_cleanup\n\nvcc_cleanup() sets port->tty to NULL without holding port->lock, racing\nwith vcc_event() LDC callbacks that read port->tty under port->lock and\nthen use tty->port. This can cause a use-after-free when the callback\ndereferences tty->port after cleanup has already destroyed and freed it.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/03b49c991abb8d021ca6fe51cd173447236b0552","https://git.kernel.org/stable/c/1a9fb9eaeb69b1f6c00bed09289a33d9fe1e7ae4","https://git.kernel.org/stable/c/57753441ef84bee3bf0e9ee1e3778d119c44aa32","https://git.kernel.org/stable/c/821050631750e982007c0856c119346edba51cae","https://git.kernel.org/stable/c/88f6ecb058801e9ce7b9aabc966530118d7cd53c"],"products":[],"source":"nvd","synced_at":"2026-10-26T07:33:01.631659812+00:00"},"epss":{"cve":"CVE-2026-98754","score":0.00168,"percentile":0.05982,"date":"2026-10-25"},"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."]}