{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "30a59cc79754fd9ff3f41b7ee2eb21da85988548"
            },
            {
              "fixed": "34b1bb33a025787e05f966e74de18cd36276f801"
            },
            {
              "fixed": "a6e11a81da3420fd37f1518d4f238c4d5784086e"
            },
            {
              "fixed": "52fb1756ea1d2759dfef2d86245be00b05dac3a2"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "fe5b68fdcec0f3d97a32f4c4acfef59cf90718f7"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.11.6"
            },
            {
              "fixed": "6.12"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.12.0"
            },
            {
              "fixed": "6.18.52"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92518.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv, bpf: Fix kernel stack corruption in tailcall with CFI\n\nWhen CONFIG_CFI_CLANG is enabled, prog-\u003ebpf_func already skips the kcfi\ninstruction during setup. Including it again in the tailcall jump offset\ncauses it to jump over an extra 4 bytes, skipping the stack pointer\nadjustment, which will result in kernel stack corruption.",
  "id": "CVE-2026-92518",
  "modified": "2026-09-18T03:31:04.668812544Z",
  "published": "2026-09-17T16:10:26.136Z",
  "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/34b1bb33a025787e05f966e74de18cd36276f801"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/52fb1756ea1d2759dfef2d86245be00b05dac3a2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a6e11a81da3420fd37f1518d4f238c4d5784086e"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92518.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-92518"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "riscv, bpf: Fix kernel stack corruption in tailcall with CFI"
}