{"cve":"CVE-2026-90135","nvd":{"published":"2026-09-17T17:17:06.053","modified":"2026-10-21T13:20:38.460","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: add missing ref_tracker_dir_exit() to alloc_netdev_mqs()\n\nsashiko is reporting that trying to read /sys/kernel/debug/ref_tracker/*\ncauses use-afer-free crash when either alloc_percpu() or dev_addr_init()\nin alloc_netdev_mqs() failed, for commit 4d92b95ff2f9 (\"net: add net device\nrefcount tracker infrastructure\") added ref_tracker_dir_exit() to only\nfree_netdev() path.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/0b1c2af8a22c35cb099c735c2f63ea3ba757557d","https://git.kernel.org/stable/c/2775bf36be7872834a7f8c0a0d9681a1a3e1cd4c","https://git.kernel.org/stable/c/45be87c5195f34c0a51598bc91186f600be5c4c9","https://git.kernel.org/stable/c/5fe03b5257095e2beef0bc79e1f068fbd09a24c7","https://git.kernel.org/stable/c/63ab05e8f9654aa100d366c0236399fda6ffaab1"],"products":[],"source":"nvd","synced_at":"2026-10-22T16:41:11.231219466+00:00"},"epss":{"cve":"CVE-2026-90135","score":0.00201,"percentile":0.09853,"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."]}