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

Vulnerability from cvelistv5 – Published: 2026-07-19 14:18 – Updated: 2026-07-19 14:18
VLAI
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
Impacted products
Vendor Product Version
Linux Linux Affected: e486147c912f653ef4b60a6c7dbd4168a4c56a9f , < e83fc4c28226be75fbc0c41f2846935ba2b5f949 (git)
Affected: e486147c912f653ef4b60a6c7dbd4168a4c56a9f , < 21dfec59939120b20d2c7794caaa421f9450be0a (git)
Affected: e486147c912f653ef4b60a6c7dbd4168a4c56a9f , < 2f41af638c92bac6f1f9275ea2d1901baef578f3 (git)
Create a notification for this product.
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)
Create a notification for this product.
Show details on NVD website

{
  "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",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-63873",
      "date": "2026-07-21",
      "epss": "0.00155",
      "percentile": "0.05099"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-63873\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-07-19T15:16:54.347\",\"lastModified\":\"2026-07-19T15:16:54.347\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"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.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/accel/amdxdna/aie2_ctx.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"e486147c912f653ef4b60a6c7dbd4168a4c56a9f\",\"lessThan\":\"e83fc4c28226be75fbc0c41f2846935ba2b5f949\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e486147c912f653ef4b60a6c7dbd4168a4c56a9f\",\"lessThan\":\"21dfec59939120b20d2c7794caaa421f9450be0a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"e486147c912f653ef4b60a6c7dbd4168a4c56a9f\",\"lessThan\":\"2f41af638c92bac6f1f9275ea2d1901baef578f3\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/accel/amdxdna/aie2_ctx.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.16\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.16\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.36\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.0.13\",\"lessThanOrEqual\":\"7.0.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/21dfec59939120b20d2c7794caaa421f9450be0a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2f41af638c92bac6f1f9275ea2d1901baef578f3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e83fc4c28226be75fbc0c41f2846935ba2b5f949\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.

Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…