{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "60e93dc097f7f13a16a7e4b75b8803eb2adbb721"
            },
            {
              "fixed": "ef4fc53898bd6c4d0119cc6d419ebef7f2560f31"
            },
            {
              "fixed": "5d3139abb9d1671fa5e42c3d6d8cb3b05479c5bb"
            },
            {
              "fixed": "d47b0b8a69a13e06afafa54723f3e8c99b0c788f"
            },
            {
              "fixed": "799e54c510a03a65a57627018a817838d72f35bd"
            },
            {
              "fixed": "598ed7393a639c7547b28ff3e14db9f1ac37c132"
            },
            {
              "fixed": "30ea97affbcce236c57287c82dc6ef7a29c63b76"
            },
            {
              "fixed": "8aa442cfce79e2d69e72fc8e0c0864ac2971149d"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.10.0"
            },
            {
              "fixed": "5.15.212"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.178"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.145"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.97"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.40"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74379.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndax/kmem: account for partial discontiguous resource upon removal\n\nWhen dev_dax_kmem_probe() partially succeeds (at least one range is\nmapped) but a subsequent range fails request_mem_region() or\nadd_memory_driver_managed(), the probe silently continues, ultimately\nreturning success, but with the corresponding range resource NULL'ed out.\n\ndev_dax_kmem_remove() iterates over all dax_device ranges regardless of if\nthe underlying resource exists.  When remove_memory() is called later, it\nreturns 0 because the memory was never added which causes\ndev_dax_kmem_remove() to incorrectly assume the (nonexistent) resource can\nbe removed and attempts cleanup on a NULL pointer.\n\nFix this by skipping these ranges altogether, noting that these cases are\nconsidered success, such that the cleanup is still reached when all\nactually-added ranges are successfully removed.",
  "id": "CVE-2026-74379",
  "modified": "2026-08-18T03:30:59.003403557Z",
  "published": "2026-08-15T05:58:57.024Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/30ea97affbcce236c57287c82dc6ef7a29c63b76"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/598ed7393a639c7547b28ff3e14db9f1ac37c132"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5d3139abb9d1671fa5e42c3d6d8cb3b05479c5bb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/799e54c510a03a65a57627018a817838d72f35bd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8aa442cfce79e2d69e72fc8e0c0864ac2971149d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d47b0b8a69a13e06afafa54723f3e8c99b0c788f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ef4fc53898bd6c4d0119cc6d419ebef7f2560f31"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74379.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74379"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "dax/kmem: account for partial discontiguous resource upon removal"
}