{"cve":"CVE-2026-98086","nvd":{"published":"2026-09-25T11:17:38.200","modified":"2026-10-19T10:18:04.883","status":"Undergoing Analysis","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: ump: do not touch legacy_rmidi before it exists\n\nsnd_ump_parse_endpoint() sets ump->parsed on every exit, including\nerror, before the caller attaches the legacy rawmidi device.\nump_handle_ep_name_msg() then treats parsed as \"legacy_rmidi is live\"\nand calls ump_legacy_set_rawmidi_name(), which snprintf()s into\nump->legacy_rmidi->name. If a UMP packet arrives in that window\n(IRQ path from snd_ump_receive), legacy_rmidi is still NULL\n(KASAN null-ptr-deref in snprintf).\n\nGuard the legacy helpers. parsed only means endpoint info was\nparsed, not that legacy_rmidi exists.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/1c8e01792adf91879322f1ad752f1814de8b7e7d","https://git.kernel.org/stable/c/228075f31b141395233218712242913125ace4e0","https://git.kernel.org/stable/c/a4cef20cd473e0640fefd38094d4baac0ec76ae3","https://git.kernel.org/stable/c/adeee7187694719890aaffdc14b7e89cfd736f1d","https://git.kernel.org/stable/c/d6f9af093dc91dac8848a01e417b8109c651c0b2"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:56:02.509636177+00:00"},"epss":{"cve":"CVE-2026-98086","score":0.00206,"percentile":0.10464,"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."]}