{"cve":"CVE-2026-92481","nvd":{"published":"2026-09-17T17:17:50.153","modified":"2026-10-19T09:19:38.407","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\npinctrl: mediatek: free EINT resources on unbind\n\nmtk_eint_do_init() creates an IRQ domain, populates it with a mapping for\nevery EINT line and installs a chained handler on the parent interrupt,\nbut none of these are ever released. This was harmless while the drivers\nwere built-in, but now that they can be built as modules and\nunbound/rmmod'd it leaves behind a dangling IRQ domain, interrupt mappings\nwhose chip data points at freed memory, and a chained handler that keeps\nfiring into that freed data.\n\nThe plain allocations in mtk_eint_do_init() already use the device-managed\ndevm_*() helpers, so tear the remaining resources down the same way:\nregister a devm action that detaches the chained handler, waits for any\nin-flight handler to finish, disposes of the per-line mappings and removes\nthe IRQ domain. This mirrors the device-managed lifecycle adopted for the\nGPIO chip and keeps the whole EINT setup self-cleaning on unbind.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/23252bc1cd9a58a039c9b1ae77b22d2b33da48e9","https://git.kernel.org/stable/c/51552c8c60d3b1fecc062eab2d8cfeaa1cb339dd","https://git.kernel.org/stable/c/7f6d898179ca4771ee602bdad4246c3952af83eb","https://git.kernel.org/stable/c/88292b7103d260e3e606eb3bb2794060a5fde48e","https://git.kernel.org/stable/c/903a7cdf63a81d3738594c5bd1b5955f58fda427"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:55:23.253742848+00:00"},"epss":{"cve":"CVE-2026-92481","score":0.00205,"percentile":0.10438,"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."]}