{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "859051dd165ec6cc915f0f2114699021144fd249"
            },
            {
              "fixed": "61769b9c882a964af3a6ebd9a8e43615f8713234"
            },
            {
              "fixed": "fe91c3f64a738dd97e8542ad5bdfbe5ac430edf6"
            },
            {
              "fixed": "daeb74f5f398e847d1d42906aec6610406a34fdc"
            },
            {
              "fixed": "84473a7e1813a2da7b759ab1d098a84998c8d3f5"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "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/2026/90xxx/CVE-2026-90159.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Disallow bpf_{g,s}etsockopt() in cgroup UNIX getname hooks\n\n_bpf_setsockopt() and _bpf_getsockopt() call sock_owned_by_me() for\nfull sockets, so these helpers expect the socket lock to be held.\n\nBPF_CGROUP_UNIX_GETPEERNAME and BPF_CGROUP_UNIX_GETSOCKNAME run BPF\nprograms without acquiring the socket lock. A program attached to\neither hook can therefore trigger the sock_owned_by_me() warning by\ncalling bpf_setsockopt() or bpf_getsockopt().\n\nDisallow bpf_setsockopt() and bpf_getsockopt() for CGROUP_UNIX_GETPEERNAME\nand CGROUP_UNIX_GETSOCKNAME.",
  "id": "CVE-2026-90159",
  "modified": "2026-09-19T03:30:38.023422727Z",
  "published": "2026-09-17T16:06:51.151Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/61769b9c882a964af3a6ebd9a8e43615f8713234"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/84473a7e1813a2da7b759ab1d098a84998c8d3f5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/daeb74f5f398e847d1d42906aec6610406a34fdc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fe91c3f64a738dd97e8542ad5bdfbe5ac430edf6"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90159.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90159"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "bpf: Disallow bpf_{g,s}etsockopt() in cgroup UNIX getname hooks"
}