{"cve":"CVE-2026-90116","nvd":{"published":"2026-09-17T17:17:03.747","modified":"2026-10-21T13:20:38.210","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: mtpav: shut down output timer before card teardown\n\nsnd_mtpav_output_timer() rearms chip->timer while holding\nchip->spinlock and accesses the card-private mtpav state.\n\nsnd_mtpav_free() currently takes the same lock and calls\ntimer_delete() when the timer is active. This only removes a\npending timer; it does not wait for a callback that is already\nrunning and does not prevent the callback from rearming the timer.\n\nA callback running on another CPU can therefore continue after\nsnd_mtpav_free() releases the lock and access the card-private\nstate while the card is being torn down. It can also rearm the\ntimer after timer_delete() has returned.\n\nCall timer_shutdown_sync() without holding chip->spinlock. This\nwaits for any running callback to finish and prevents further\nrearming before the card-private mtpav state is released.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/1e16e82581521a2fe20eda29bdc9e75286f7c950","https://git.kernel.org/stable/c/392c985c6b03dfdf4904c0d464f18735ca3c4df8","https://git.kernel.org/stable/c/793163e134028e7136c9dd9e30f7f656de1eabba","https://git.kernel.org/stable/c/c73cb5b7c159246dd572277c668851a56e516019","https://git.kernel.org/stable/c/de75857ce374671712e1d9528844e3c0543dcef6"],"products":[],"source":"nvd","synced_at":"2026-10-22T16:41:11.231219466+00:00"},"epss":{"cve":"CVE-2026-90116","score":0.00209,"percentile":0.10918,"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."]}