{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "e2a7420df2e01370b40e4cf7b85ab9a885c6d755"
            },
            {
              "fixed": "1b7558c85493467b2ea20738866b822db6442034"
            },
            {
              "fixed": "b02b2e3e876c18733b868a29064abd11cdbf8feb"
            },
            {
              "fixed": "66693957bacd1c9dae6188a7312d6be69a221f2d"
            },
            {
              "fixed": "a629418d463fb50d132a1aa063b0105857311e5f"
            },
            {
              "fixed": "c2cfe290fdb1c32a4f4eb2b8ca3f363b305d21ba"
            },
            {
              "fixed": "bcb8fad90f27300add583a8371db504b766d95c7"
            },
            {
              "fixed": "b0878106ddc486375084145848ff255dedfff46a"
            },
            {
              "fixed": "a764b0e8317a863006e05732e1aefe821b9d8c2d"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.3.0"
            },
            {
              "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-2026-53337.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bonding: fix NULL pointer dereference in bond_do_ioctl()\n\nIn bond_do_ioctl(), slave_dev is obtained via __dev_get_by_name() which\ncan return NULL if the requested interface name does not exist. However,\nthe subsequent slave_dbg() call is placed before the NULL check:\n\n    slave_dev = __dev_get_by_name(net, ifr-\u003eifr_slave);\n    slave_dbg(bond_dev, slave_dev, \"slave_dev=%p:\\n\", slave_dev); //here\n    if (!slave_dev)\n        return -ENODEV;\n\nThe slave_dbg() macro expands to netdev_dbg(bond_dev, \"(slave %s): \" fmt,\n(slave_dev)-\u003ename, ...) which unconditionally dereferences slave_dev-\u003ename\nbefore the NULL check is performed. This results in a NULL pointer\ndereference kernel oops when a user calls bonding ioctl (e.g.\nSIOCBONDENSLAVE, SIOCBONDRELEASE, etc.) with a non-existent slave\ninterface name.\n\nThis is reachable from userspace via the bonding ioctl interface with\nCAP_NET_ADMIN capability, making it a potential local denial-of-service\nvector.\n\nFix by moving the slave_dbg() call after the NULL check.",
  "id": "CVE-2026-53337",
  "modified": "2026-07-08T05:37:57.459437626Z",
  "published": "2026-07-01T13:32:19.046Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1b7558c85493467b2ea20738866b822db6442034"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/66693957bacd1c9dae6188a7312d6be69a221f2d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a629418d463fb50d132a1aa063b0105857311e5f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a764b0e8317a863006e05732e1aefe821b9d8c2d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b02b2e3e876c18733b868a29064abd11cdbf8feb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b0878106ddc486375084145848ff255dedfff46a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bcb8fad90f27300add583a8371db504b766d95c7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c2cfe290fdb1c32a4f4eb2b8ca3f363b305d21ba"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53337.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53337"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "net: bonding: fix NULL pointer dereference in bond_do_ioctl()"
}