{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "4211742f0f9e083188f4f0ada00d6eeeef31b7c7"
            },
            {
              "fixed": "606cc45e871e34b80a2f63874f069387a5b44176"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "b7fb4d78a6ade6026d9e5cf438c2a46ab962e032"
            },
            {
              "fixed": "c462e15497dc40abe369b3be7a2c91ac5d1be6f9"
            },
            {
              "fixed": "b5f92cc4e24a298bf390b0b189a4b888c0900161"
            },
            {
              "fixed": "6ad6954492697681ebcfc1beb0eb384406cd4b65"
            },
            {
              "fixed": "eadd0c2c76aee6a738f17f251434c77db3c606c8"
            },
            {
              "fixed": "d5b2752a17efc165793ae38f2c24b5ed9c04ffde"
            },
            {
              "fixed": "81bbcff0c053c4f5c711c31a9b72fc492bd96c3f"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "3ca8a07f141fd8eec347a82bdfa4b94164f2bb97"
            },
            {
              "last_affected": "3ba83e46b591381e718007f55c9f831fd0cd7ee8"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "5.15.47"
            },
            {
              "fixed": "5.15.212"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "5.17.15"
            },
            {
              "fixed": "5.18"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "5.18.4"
            },
            {
              "fixed": "5.19"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.15.212"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.178"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.19.0"
            },
            {
              "fixed": "6.6.145"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.12.97"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.18.40"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72013.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: Prevent NULL pointer dereference in machine_kexec_prepare()\n\nA NULL pointer dereference issue is noticed in riscv's\nmachine_kexec_prepare(), where image-\u003esegment[i].buf might be NULL and\ncopied unchecked.\n\nThe NULL buf comes from ima_add_kexec_buffer(), where kbuf is added by\nkexec_add_buffer(), but kbuf.buffer is NULL, then it is copied without\na check in machine_kexec_prepare():\n\n  kexec_file_load\n    -\u003e kimage_file_alloc_init()\n       -\u003e kimage_file_prepare_segments()\n          -\u003e ima_add_kexec_buffer()\n             -\u003e kexec_add_buffer()\n    -\u003e machine_kexec_prepare()\n       -\u003e memcpy()\n\nAddress this by adding a check before the data copy attempt.",
  "id": "CVE-2026-72013",
  "modified": "2026-08-18T03:31:06.905623948Z",
  "published": "2026-08-15T05:51:41.982Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/606cc45e871e34b80a2f63874f069387a5b44176"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6ad6954492697681ebcfc1beb0eb384406cd4b65"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/81bbcff0c053c4f5c711c31a9b72fc492bd96c3f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b5f92cc4e24a298bf390b0b189a4b888c0900161"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c462e15497dc40abe369b3be7a2c91ac5d1be6f9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d5b2752a17efc165793ae38f2c24b5ed9c04ffde"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eadd0c2c76aee6a738f17f251434c77db3c606c8"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72013.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72013"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "riscv: Prevent NULL pointer dereference in machine_kexec_prepare()"
}