{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "cd39d9e6b7e4c58fa77783e7aedf7ada51d02ea3"
            },
            {
              "fixed": "882b8912b7e92341fdb115ba0e2e5142a28684ff"
            },
            {
              "fixed": "96f44d493c280ea161569c43d7ed0f3b0815803a"
            },
            {
              "fixed": "37d545d12f21c4d50612ecaebd7ae1e5bf91b2d8"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "1a782fa32e644aa9fbae6c8488f3e61221ac96e1"
            },
            {
              "last_affected": "17c010fe45def335fe03a0718935416b04c7f349"
            },
            {
              "last_affected": "f83d469e16bb1f75991ca67c56786fb2aaa42bea"
            },
            {
              "last_affected": "f2b5e50cc04d7a049b385bc1c93b9cbf5f10c94f"
            },
            {
              "last_affected": "9262e3e04621558e875eb5afb5e726b648cd5949"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.1.149"
            },
            {
              "fixed": "6.2"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.6.103"
            },
            {
              "fixed": "6.7"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.12.43"
            },
            {
              "fixed": "6.13"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.15.11"
            },
            {
              "fixed": "6.16"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.16.2"
            },
            {
              "fixed": "6.17"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.17.0"
            },
            {
              "fixed": "6.18.51"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89906.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: BPF: Refactor jump offset calculation in tail call\n\nThe old macro-based jmp_offset calculation derives the jump distance\nfrom a stale prior-pass code stride, which can lead to wrong branch\noffsets and soft lockups under extra JIT passes.\n\nFix this by calculating the offset directly on the absolute target:\n\"ctx-\u003eoffset[insn + 1] - ctx-\u003eidx\".\n\nTo avoid a false 16-bit range check abort during size estimation, add\na \"ctx-\u003eimage == NULL\" guard to inject a safe dummy offset.",
  "id": "CVE-2026-89906",
  "modified": "2026-09-18T03:30:57.437022891Z",
  "published": "2026-09-16T10:32:05.157Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/37d545d12f21c4d50612ecaebd7ae1e5bf91b2d8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/882b8912b7e92341fdb115ba0e2e5142a28684ff"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/96f44d493c280ea161569c43d7ed0f3b0815803a"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89906.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89906"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "LoongArch: BPF: Refactor jump offset calculation in tail call"
}