{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "893f139b9a6c00c097b9082a90f3041cfb3a0d20"
            },
            {
              "fixed": "e248fb2e680deb2bd37bac551b72638fe4938a76"
            },
            {
              "fixed": "0bb5b2dc1b90aa7dd1473fc8c4d813a29255ff8d"
            },
            {
              "fixed": "971b1b37774f13acc5add0a2843f8598446b8598"
            },
            {
              "fixed": "25fdf53698535fe8790237f5a8a9626791429785"
            },
            {
              "fixed": "e3d509a1b71396e1452060dbf84a805fd1c3c549"
            },
            {
              "fixed": "ecc55aad3390129a87106841f4b68bf3d70c9264"
            },
            {
              "fixed": "895d1dd9057cde1687fa0f4286d47ceed0b82997"
            },
            {
              "fixed": "ee30dd2909d8b98619f4341c70ec8dc8e155ab02"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.16.0"
            },
            {
              "fixed": "5.10.259"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.210"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.176"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.143"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.94"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.36"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53227.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: openvswitch: fix possible kfree_skb of ERR_PTR\n\nAfter the patch in the \"Fixes\" tag, the allocation of the \"reply\" skb\ncan happen either before or after locking the ovs_mutex.\n\nHowever, error cleanups still follow the classical reversed order,\nassuming \"reply\" is allocated before locking: it is freed after unlocking.\n\nIf \"reply\" allocation happens after locking the mutex and it fails,\n\"reply\" is left with an ERR_PTR, and execution jumps to the correspondent\ncleanup stage which will try to free an invalid pointer.\n\nFix this by setting the pointer to NULL after having saved its error\nvalue.",
  "id": "CVE-2026-53227",
  "modified": "2026-07-08T05:37:23.125220445Z",
  "published": "2026-06-25T08:39:27.229Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0bb5b2dc1b90aa7dd1473fc8c4d813a29255ff8d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/25fdf53698535fe8790237f5a8a9626791429785"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/895d1dd9057cde1687fa0f4286d47ceed0b82997"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/971b1b37774f13acc5add0a2843f8598446b8598"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e248fb2e680deb2bd37bac551b72638fe4938a76"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e3d509a1b71396e1452060dbf84a805fd1c3c549"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ecc55aad3390129a87106841f4b68bf3d70c9264"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ee30dd2909d8b98619f4341c70ec8dc8e155ab02"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53227.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53227"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "net: openvswitch: fix possible kfree_skb of ERR_PTR"
}