Vulnerability-Lookup

GHSA-FCMF-5WQG-HRW5

Vulnerability from github – Published: 2026-07-19 15:30 – Updated: 2026-07-19 15:30

Details

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

accel/amdxdna: Fix mm_struct reference leak in aie2_populate_range()

aie2_populate_range() jumps back to the again label without calling mmput(mm), leaking a reference to the mm_struct.

Add the missing mmput() before jumping to again.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-63873"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-19T15:16:54Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: Fix mm_struct reference leak in aie2_populate_range()\n\naie2_populate_range() jumps back to the again label without calling\nmmput(mm), leaking a reference to the mm_struct.\n\nAdd the missing mmput() before jumping to again.",
  "id": "GHSA-fcmf-5wqg-hrw5",
  "modified": "2026-07-19T15:30:28Z",
  "published": "2026-07-19T15:30:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63873"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/21dfec59939120b20d2c7794caaa421f9450be0a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2f41af638c92bac6f1f9275ea2d1901baef578f3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e83fc4c28226be75fbc0c41f2846935ba2b5f949"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-63873 (GCVE-0-2026-63873)

Vulnerability from cvelistv5 – Published: 2026-07-19 14:18 – Updated: 2026-07-19 14:18

Title

accel/amdxdna: Fix mm_struct reference leak in aie2_populate_range()

Summary

In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: Fix mm_struct reference leak in aie2_populate_range() aie2_populate_range() jumps back to the again label without calling mmput(mm), leaking a reference to the mm_struct. Add the missing mmput() before jumping to again.

Severity

No CVSS data available.

Assigner

Linux

References

3 references

URL	Tags
https://git.kernel.org/stable/c/e83fc4c28226be75f…
https://git.kernel.org/stable/c/21dfec59939120b20…
https://git.kernel.org/stable/c/2f41af638c92bac6f…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: e486147c912f653ef4b60a6c7dbd4168a4c56a9f , < e83fc4c28226be75fbc0c41f2846935ba2b5f949 (git) Affected: e486147c912f653ef4b60a6c7dbd4168a4c56a9f , < 21dfec59939120b20d2c7794caaa421f9450be0a (git) Affected: e486147c912f653ef4b60a6c7dbd4168a4c56a9f , < 2f41af638c92bac6f1f9275ea2d1901baef578f3 (git)
Linux	Linux	Affected: 6.16 Unaffected: 0 , < 6.16 (semver) Unaffected: 6.18.36 , ≤ 6.18.* (semver) Unaffected: 7.0.13 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/accel/amdxdna/aie2_ctx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e83fc4c28226be75fbc0c41f2846935ba2b5f949",
              "status": "affected",
              "version": "e486147c912f653ef4b60a6c7dbd4168a4c56a9f",
              "versionType": "git"
            },
            {
              "lessThan": "21dfec59939120b20d2c7794caaa421f9450be0a",
              "status": "affected",
              "version": "e486147c912f653ef4b60a6c7dbd4168a4c56a9f",
              "versionType": "git"
            },
            {
              "lessThan": "2f41af638c92bac6f1f9275ea2d1901baef578f3",
              "status": "affected",
              "version": "e486147c912f653ef4b60a6c7dbd4168a4c56a9f",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/accel/amdxdna/aie2_ctx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.16"
            },
            {
              "lessThan": "6.16",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.36",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.36",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.13",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "6.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: Fix mm_struct reference leak in aie2_populate_range()\n\naie2_populate_range() jumps back to the again label without calling\nmmput(mm), leaking a reference to the mm_struct.\n\nAdd the missing mmput() before jumping to again."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-19T14:18:41.197Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/e83fc4c28226be75fbc0c41f2846935ba2b5f949"
        },
        {
          "url": "https://git.kernel.org/stable/c/21dfec59939120b20d2c7794caaa421f9450be0a"
        },
        {
          "url": "https://git.kernel.org/stable/c/2f41af638c92bac6f1f9275ea2d1901baef578f3"
        }
      ],
      "title": "accel/amdxdna: Fix mm_struct reference leak in aie2_populate_range()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-63873",
    "datePublished": "2026-07-19T14:18:41.197Z",
    "dateReserved": "2026-07-19T07:54:57.017Z",
    "dateUpdated": "2026-07-19T14:18:41.197Z",
    "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.

Action not permitted

GHSA-FCMF-5WQG-HRW5

CVE-2026-63873 (GCVE-0-2026-63873)

Tags

Sightings

Nomenclature