{"cve":"CVE-2026-98559","nvd":{"published":"2026-10-18T16:17:08.033","modified":"2026-10-19T10:19:12.447","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: fix UAF on lgr list traversal in smcr_port_err()\n\nsmcr_port_err() traverses smc_lgr_list.list without holding\nsmc_lgr_list.lock, allowing a concurrent smc_lgr_terminate_sched()\nto free an lgr while it is still being dereferenced.\n\nHold smc_lgr_list.lock across the traversal. Update\nsmc_ib_gid_check() to call smcr_port_err() after releasing the lock.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/00a59600ae72d24859d0ad1783a78bc921bc2599","https://git.kernel.org/stable/c/0edcc4284392b28826b5d37532b366b291e6e0fa","https://git.kernel.org/stable/c/34bcf11cd2528ae00bb6d764d808083c66824277","https://git.kernel.org/stable/c/3d35f069e1c119992000d51236dbe54da2d4e61e","https://git.kernel.org/stable/c/3d65a2eb4449fc9658fb860dea893025d028d90e"],"products":[],"source":"nvd","synced_at":"2026-10-19T23:00:53.604569364+00:00"},"epss":{"cve":"CVE-2026-98559","score":0.00211,"percentile":0.11297,"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."]}