{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "eec40579d84873dfb7021eb24c50360f073237c5"
            },
            {
              "fixed": "fe94a0b14010a3c267ff9a2508afb4f27ff1c5bf"
            },
            {
              "fixed": "e3ffa8e492e5cdee62d916ee3e9244ccce2b73c5"
            },
            {
              "fixed": "9946a7176bd8c25ddd6e5f1799c54e572ee6bf0f"
            },
            {
              "fixed": "7e1822f83c5a1ee7b4a19e98edde8770a10b4c71"
            },
            {
              "fixed": "db5f9b4601f0012038e5a2628aedec2f47933380"
            },
            {
              "fixed": "1fcb5e29dd7a5b85adb9d8b539911741d878e829"
            },
            {
              "fixed": "bafe3e720cdac38cd7ea4eb7852a8f2dbe1bbfe6"
            },
            {
              "fixed": "a868196f03c2b19418ae3d2b69e195d668a271e5"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.15.0"
            },
            {
              "fixed": "5.10.261"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "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/2026/72xxx/CVE-2026-72107.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm era: fix out-of-bounds memory access for non-zero start sector\n\ndm-era tracks writes in target-relative blocks, but era_map() calculates\nthe writeset block before applying the target offset.  Tables with a\nnon-zero start sector can therefore pass an absolute mapped-device block\nto metadata_current_marked().\n\nIf the absolute block is beyond the current writeset size,\nwriteset_marked() tests past the end of the in-core bitset.  KASAN reports\nthis as a vmalloc-out-of-bounds access.\n\nApply the target offset before calculating the era block so writeset\nlookups use the target-relative block number.",
  "id": "CVE-2026-72107",
  "modified": "2026-08-18T03:30:57.847458280Z",
  "published": "2026-08-15T05:52:49.581Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1fcb5e29dd7a5b85adb9d8b539911741d878e829"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7e1822f83c5a1ee7b4a19e98edde8770a10b4c71"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9946a7176bd8c25ddd6e5f1799c54e572ee6bf0f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a868196f03c2b19418ae3d2b69e195d668a271e5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bafe3e720cdac38cd7ea4eb7852a8f2dbe1bbfe6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/db5f9b4601f0012038e5a2628aedec2f47933380"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e3ffa8e492e5cdee62d916ee3e9244ccce2b73c5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fe94a0b14010a3c267ff9a2508afb4f27ff1c5bf"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72107.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72107"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "dm era: fix out-of-bounds memory access for non-zero start sector"
}