{"cve":"CVE-2026-90210","nvd":{"published":"2026-09-17T17:17:16.217","modified":"2026-10-19T09:19:11.170","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix UAF in bpf_trampoline_multi_attach_free on update failure\n\nWhen bpf_trampoline_update() fails before modify_fentry_multi()/\nunregister_fentry_multi() is called, cur_image is unchanged\n(cur_image == old_image) and ftrace still calls into it.  Freeing\nold_image in that case causes a UAF.\n\nOnly free old_image when it differs from cur_image.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":[],"references":["https://git.kernel.org/stable/c/0253073fb7d79a2dd2eae9581ea16db2aef395a6","https://git.kernel.org/stable/c/65c3939656fd7848e9274faa07c26748b5bf049c"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:55:23.253742848+00:00"},"epss":{"cve":"CVE-2026-90210","score":0.00165,"percentile":0.05664,"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."]}