{"cve":"CVE-2026-98748","nvd":{"published":"2026-10-18T16:17:28.557","modified":"2026-10-21T13:21:42.810","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nserial: 8250_bcm7271: fix use-after-free in brcmuart_remove()\n\nbrcmuart_handle_irq() starts priv->hrt to work around a receive-timeout\nquirk of the 8250 core when hardware flow control is enabled; the timer\ncallback brcmuart_hrtimer_func() dereferences priv.\n\nbrcmuart_remove() cancels the hrtimer before it unregisters the port, so\na receive-timeout interrupt that arrives in between re-arms the timer.\nAfter devm frees priv, the callback runs on freed memory.\n\nUnregister the port before cancelling the hrtimer.\nserial8250_unregister_port() shuts the port down and frees its IRQ, so\nbrcmuart_handle_irq() can no longer restart the timer, and the final\nhrtimer_cancel() drains any timer that was armed before or during the\nunregister.\n\nThis issue was found by an in-house static analysis tool.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/0794ba5332754866b2f1c0cca668775be3ffcf0a","https://git.kernel.org/stable/c/189b9dc8c96ec9486482f27c1372b04a7152175e","https://git.kernel.org/stable/c/dd81650bec58ac70e5dfde2ec390acc1f0d1ed76","https://git.kernel.org/stable/c/e32440fa536af96bdbc61d933a7c3a920b965edc","https://git.kernel.org/stable/c/f5ce06e648d775cc1ccf66f4f594bb8b559a7d8e"],"products":[],"source":"nvd","synced_at":"2026-10-22T16:41:11.231219466+00:00"},"epss":{"cve":"CVE-2026-98748","score":0.00168,"percentile":0.05974,"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."]}