{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "541afa10c126b6c22c2a805a559c70cc41fd156e"
            },
            {
              "fixed": "34bcf11cd2528ae00bb6d764d808083c66824277"
            },
            {
              "fixed": "0edcc4284392b28826b5d37532b366b291e6e0fa"
            },
            {
              "fixed": "00a59600ae72d24859d0ad1783a78bc921bc2599"
            },
            {
              "fixed": "3d35f069e1c119992000d51236dbe54da2d4e61e"
            },
            {
              "fixed": "3d65a2eb4449fc9658fb860dea893025d028d90e"
            },
            {
              "fixed": "a9b968e42690d784c241a0761c10253271f7df5d"
            },
            {
              "fixed": "61cb282fe97b3b0ba32ca09417a693162bf4ae3f"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.8.0"
            },
            {
              "fixed": "5.15.222"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.189"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.158"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.112"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.55"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98559.json"
  },
  "details": "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.",
  "id": "CVE-2026-98559",
  "modified": "2026-10-19T02:31:05.679961390Z",
  "published": "2026-10-18T15:18:26.349Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/00a59600ae72d24859d0ad1783a78bc921bc2599"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0edcc4284392b28826b5d37532b366b291e6e0fa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/34bcf11cd2528ae00bb6d764d808083c66824277"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3d35f069e1c119992000d51236dbe54da2d4e61e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3d65a2eb4449fc9658fb860dea893025d028d90e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/61cb282fe97b3b0ba32ca09417a693162bf4ae3f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a9b968e42690d784c241a0761c10253271f7df5d"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98559.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98559"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "net/smc: fix UAF on lgr list traversal in smcr_port_err()"
}