{"cve":"CVE-2026-74502","nvd":{"published":"2026-08-15T13:17:55.197","modified":"2026-08-17T06:19:46.693","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: ump: fix double free of out_cvts on rawmidi error\n\nsnd_ump_attach_legacy_rawmidi() allocates the legacy conversion array\nump->out_cvts and, on the snd_rawmidi_new() error path, frees it with\nkfree() but leaves ump->out_cvts pointing at the freed memory.  When the\nendpoint is later torn down, snd_ump_endpoint_free() frees ump->out_cvts\na second time, resulting in a double free.\n\nThe host snd-usb-audio driver attaches the legacy rawmidi for any USB\nMIDI 2.0 (UMP) device, so a device that makes snd_rawmidi_new() fail\nreaches this path on enumeration.\n\nClear ump->out_cvts after freeing it on the error path so it is not\nfreed again during teardown.\n\nDiscovered by XBOW, triaged by Baul Lee <baul.lee@xbow.com>","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/032746c2dd9a4ea0774b04ac8a29e2ea628f106e","https://git.kernel.org/stable/c/3302aaeac4f7ee6b775850db21d5f61064ce70ad","https://git.kernel.org/stable/c/70c977815af0d997feb2d0c5d284d55689bf7051","https://git.kernel.org/stable/c/c57001f55f97ef856fb6527e376c5c4a056a53a4","https://git.kernel.org/stable/c/e84d2e53a05c78a04d1343eeb0f31a79456e79fc"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:49:10.689564601+00:00"},"epss":{"cve":"CVE-2026-74502","score":0.00168,"percentile":0.0608,"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."]}