Vulnerability-Lookup

GHSA-9CPR-X8VV-XJRP

Vulnerability from github – Published: 2026-08-15 06:32 – Updated: 2026-08-17 06:33

Details

In the Linux kernel, the following vulnerability has been resolved:

dm_early_create: fix freeing used table on dm_resume failure

If dm_resume fails, the kernel attempts to free table with dm_table_destroy, but the table was already instantiated with dm_swap_table. This commit skips the call to dm_table_destroy in this case.

Severity

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-72102"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:21:24Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm_early_create: fix freeing used table on dm_resume failure\n\nIf dm_resume fails, the kernel attempts to free table with\ndm_table_destroy, but the table was already instantiated with\ndm_swap_table. This commit skips the call to dm_table_destroy in this\ncase.",
  "id": "GHSA-9cpr-x8vv-xjrp",
  "modified": "2026-08-17T06:33:09Z",
  "published": "2026-08-15T06:32:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72102"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/259ce9e3fc3a3f8c4e393a2072b8f34302eb4d5a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/366665416f20527ff7cad548a32d1ddf23195740"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3ba377a47a093cc19647ca7f102acd33a211d472"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5f6500d44a912d4aed664600966706d76b81d9af"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/72c3283a2abd60ecef295e02270f22ef1dfccd25"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7d8ed7cb844df21e4d93af11250fb3a5cb861147"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/92e3c93d60be1f2425738cd66dbadac7d6bc0cd1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d6066145347e14db84c35b445e309f095d0d8125"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-72102 (GCVE-0-2026-72102)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:52 – Updated: 2026-08-17 05:40

Title

dm_early_create: fix freeing used table on dm_resume failure

Summary

In the Linux kernel, the following vulnerability has been resolved: dm_early_create: fix freeing used table on dm_resume failure If dm_resume fails, the kernel attempts to free table with dm_table_destroy, but the table was already instantiated with dm_swap_table. This commit skips the call to dm_table_destroy in this case.

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/3ba377a47a093cc19…
https://git.kernel.org/stable/c/72c3283a2abd60ece…
https://git.kernel.org/stable/c/d6066145347e14db8…
https://git.kernel.org/stable/c/259ce9e3fc3a3f8c4…
https://git.kernel.org/stable/c/5f6500d44a912d4ae…
https://git.kernel.org/stable/c/92e3c93d60be1f242…
https://git.kernel.org/stable/c/7d8ed7cb844df21e4…
https://git.kernel.org/stable/c/366665416f20527ff…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 6bbc923dfcf57d6b97388819a7393835664c7a8e , < 3ba377a47a093cc19647ca7f102acd33a211d472 (git) Affected: 6bbc923dfcf57d6b97388819a7393835664c7a8e , < 72c3283a2abd60ecef295e02270f22ef1dfccd25 (git) Affected: 6bbc923dfcf57d6b97388819a7393835664c7a8e , < d6066145347e14db84c35b445e309f095d0d8125 (git) Affected: 6bbc923dfcf57d6b97388819a7393835664c7a8e , < 259ce9e3fc3a3f8c4e393a2072b8f34302eb4d5a (git) Affected: 6bbc923dfcf57d6b97388819a7393835664c7a8e , < 5f6500d44a912d4aed664600966706d76b81d9af (git) Affected: 6bbc923dfcf57d6b97388819a7393835664c7a8e , < 92e3c93d60be1f2425738cd66dbadac7d6bc0cd1 (git) Affected: 6bbc923dfcf57d6b97388819a7393835664c7a8e , < 7d8ed7cb844df21e4d93af11250fb3a5cb861147 (git) Affected: 6bbc923dfcf57d6b97388819a7393835664c7a8e , < 366665416f20527ff7cad548a32d1ddf23195740 (git)
Linux	Linux	Affected: 5.1 Unaffected: 0 , < 5.1 (semver) Unaffected: 5.10.261 , ≤ 5.10.* (semver) Unaffected: 5.15.212 , ≤ 5.15.* (semver) Unaffected: 6.1.178 , ≤ 6.1.* (semver) Unaffected: 6.6.145 , ≤ 6.6.* (semver) Unaffected: 6.12.97 , ≤ 6.12.* (semver) Unaffected: 6.18.40 , ≤ 6.18.* (semver) Unaffected: 7.1.5 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/md/dm-ioctl.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "3ba377a47a093cc19647ca7f102acd33a211d472",
              "status": "affected",
              "version": "6bbc923dfcf57d6b97388819a7393835664c7a8e",
              "versionType": "git"
            },
            {
              "lessThan": "72c3283a2abd60ecef295e02270f22ef1dfccd25",
              "status": "affected",
              "version": "6bbc923dfcf57d6b97388819a7393835664c7a8e",
              "versionType": "git"
            },
            {
              "lessThan": "d6066145347e14db84c35b445e309f095d0d8125",
              "status": "affected",
              "version": "6bbc923dfcf57d6b97388819a7393835664c7a8e",
              "versionType": "git"
            },
            {
              "lessThan": "259ce9e3fc3a3f8c4e393a2072b8f34302eb4d5a",
              "status": "affected",
              "version": "6bbc923dfcf57d6b97388819a7393835664c7a8e",
              "versionType": "git"
            },
            {
              "lessThan": "5f6500d44a912d4aed664600966706d76b81d9af",
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              "version": "6bbc923dfcf57d6b97388819a7393835664c7a8e",
              "versionType": "git"
            },
            {
              "lessThan": "92e3c93d60be1f2425738cd66dbadac7d6bc0cd1",
              "status": "affected",
              "version": "6bbc923dfcf57d6b97388819a7393835664c7a8e",
              "versionType": "git"
            },
            {
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              "status": "affected",
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          "versions": [
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              "version": "5.1"
            },
            {
              "lessThan": "5.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.261",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.261",
                  "versionStartIncluding": "5.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.212",
                  "versionStartIncluding": "5.1",
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "5.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.97",
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                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.40",
                  "versionStartIncluding": "5.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "5.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "5.1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
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          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm_early_create: fix freeing used table on dm_resume failure\n\nIf dm_resume fails, the kernel attempts to free table with\ndm_table_destroy, but the table was already instantiated with\ndm_swap_table. This commit skips the call to dm_table_destroy in this\ncase."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The bug is only reachable via the dm-mod.create kernel boot parameter processed in late_initcall dm_init_init() calling dm_early_create(); there is no network, adjacent, ioctl, netlink, or post-boot userspace path into this __init-only device-mapper setup code.\nAC:L - Once dm_swap_table() installs the table, an attacker controlling dm-mod.create can deterministically force dm_resume() to fail (e.g., paired snapshot-origin preresume handover rejection or verity/crypt preresume errors) without races or attacker-uncontrolled memory layout.\nPR:L - dm_early_create() performs no capability or credential checks on its error path; unlike runtime DM_DEV_CREATE ioctls that require CAP_SYS_ADMIN, triggering the post-swap dm_resume failure only needs crafting dm-mod.create table parameters at boot, not real-root dm-ioctl privileges unobtainable via user namespaces.\nUI:N - The vulnerable teardown runs automatically during late_initcall once dm-mod.create is present and dm_resume fails; no victim must open files, mount filesystems, or take any interactive action beyond rebooting with the crafted boot configuration.\nS:U - The use-after-free and double-free corrupt kernel heap memory during device-mapper early boot setup within the kernel trust boundary; it does not cross VM, container, or IOMMU isolation boundaries into another security authority.\nC:H - dm_table_destroy() frees a dm_table still referenced through md-\u003emap after dm_swap_table(), creating a kernel heap use-after-free that can expose freed object contents and adjacent kernel memory to subsequent allocations and readers.\nI:H - UAF on the live dm_table enables heap grooming and corrupts destructor paths invoked during erroneous teardown (dm_table_destroy target dtr hooks, then dm_destroy __unbind), providing memory corruption primitives developable into arbitrary kernel writes or control-flow hijack.\nA:H - Freeing the active table then calling dm_destroy()/__unbind() on the same object causes double-free/use-after-free during boot cleanup, readily producing kernel panics, oopses, or unbootable systems on dm-mod.create rootfs platforms (Android/ChromeOS/embedded)."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:40:16.779Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/3ba377a47a093cc19647ca7f102acd33a211d472"
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        },
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        },
        {
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        },
        {
          "url": "https://git.kernel.org/stable/c/5f6500d44a912d4aed664600966706d76b81d9af"
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        {
          "url": "https://git.kernel.org/stable/c/7d8ed7cb844df21e4d93af11250fb3a5cb861147"
        },
        {
          "url": "https://git.kernel.org/stable/c/366665416f20527ff7cad548a32d1ddf23195740"
        }
      ],
      "title": "dm_early_create: fix freeing used table on dm_resume failure",
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        "engine": "bippy-1.2.0"
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-72102",
    "datePublished": "2026-08-15T05:52:46.200Z",
    "dateReserved": "2026-08-09T03:40:39.905Z",
    "dateUpdated": "2026-08-17T05:40:16.779Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

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GHSA-9CPR-X8VV-XJRP

CVE-2026-72102 (GCVE-0-2026-72102)

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Sightings

Nomenclature