Vulnerability-Lookup

FKIE_CVE-2026-74352

Vulnerability from fkie_nvd - Published: 2026-08-15 06:22 - Updated: 2026-08-17 06:19

Severity

Summary

In the Linux kernel, the following vulnerability has been resolved: of: reserved_mem: avoid post-init UAF when alloc_reserved_mem_array() fails The global pointer 'reserved_mem' continues to reference the reserved_mem_array which lives in __initdata if alloc_reserved_mem_array() fails. of_reserved_mem_lookup() is exported for post-init use, that would dereference freed memory and trigger a use-after-free. So reset reserved_mem_count to 0 when alloc_reserved_mem_array() fails.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6d28e6ad3c5c9248577f21057baa9bf16fa9ef3b
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9af58d10d0d8c08b822de5fc99e61f31a87ede8d
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/cbd3102fe27bc87da244bf4c3ba670ea4698b0a8
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e1686ca81dbf3edbde589b7daf312b45cbf76e03

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/of/of_reserved_mem.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6d28e6ad3c5c9248577f21057baa9bf16fa9ef3b",
              "status": "affected",
              "version": "b6ae53301eb41f0f59f83c161248b186bca7da70",
              "versionType": "git"
            },
            {
              "lessThan": "9af58d10d0d8c08b822de5fc99e61f31a87ede8d",
              "status": "affected",
              "version": "00c9a452a235c61f099504783badd9a7675ff5a5",
              "versionType": "git"
            },
            {
              "lessThan": "cbd3102fe27bc87da244bf4c3ba670ea4698b0a8",
              "status": "affected",
              "version": "00c9a452a235c61f099504783badd9a7675ff5a5",
              "versionType": "git"
            },
            {
              "lessThan": "e1686ca81dbf3edbde589b7daf312b45cbf76e03",
              "status": "affected",
              "version": "00c9a452a235c61f099504783badd9a7675ff5a5",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/of/of_reserved_mem.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.13"
            },
            {
              "lessThan": "6.13",
              "status": "unaffected",
              "version": "0",
              "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"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nof: reserved_mem: avoid post-init UAF when alloc_reserved_mem_array() fails\n\nThe global pointer \u0027reserved_mem\u0027 continues to reference the\nreserved_mem_array which lives in __initdata if\nalloc_reserved_mem_array() fails. of_reserved_mem_lookup() is\nexported for post-init use, that would dereference freed memory\nand trigger a use-after-free.\n\nSo reset reserved_mem_count to 0 when alloc_reserved_mem_array()\nfails."
    }
  ],
  "id": "CVE-2026-74352",
  "lastModified": "2026-08-17T06:19:29.907",
  "metrics": {},
  "published": "2026-08-15T06:22:36.543",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6d28e6ad3c5c9248577f21057baa9bf16fa9ef3b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9af58d10d0d8c08b822de5fc99e61f31a87ede8d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cbd3102fe27bc87da244bf4c3ba670ea4698b0a8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e1686ca81dbf3edbde589b7daf312b45cbf76e03"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

CVE-2026-74352 (GCVE-0-2026-74352)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:58 – Updated: 2026-08-17 05:17

Title

of: reserved_mem: avoid post-init UAF when alloc_reserved_mem_array() fails

Summary

Severity

No CVSS data available.

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/6d28e6ad3c5c92485…
https://git.kernel.org/stable/c/9af58d10d0d8c08b8…
https://git.kernel.org/stable/c/cbd3102fe27bc87da…
https://git.kernel.org/stable/c/e1686ca81dbf3edbd…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: b6ae53301eb41f0f59f83c161248b186bca7da70 , < 6d28e6ad3c5c9248577f21057baa9bf16fa9ef3b (git) Affected: 00c9a452a235c61f099504783badd9a7675ff5a5 , < 9af58d10d0d8c08b822de5fc99e61f31a87ede8d (git) Affected: 00c9a452a235c61f099504783badd9a7675ff5a5 , < cbd3102fe27bc87da244bf4c3ba670ea4698b0a8 (git) Affected: 00c9a452a235c61f099504783badd9a7675ff5a5 , < e1686ca81dbf3edbde589b7daf312b45cbf76e03 (git)
Linux	Linux	Affected: 6.13 Unaffected: 0 , < 6.13 (semver) Unaffected: 6.18.40 , ≤ 6.18.* (semver) Unaffected: 7.1.5 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/of/of_reserved_mem.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6d28e6ad3c5c9248577f21057baa9bf16fa9ef3b",
              "status": "affected",
              "version": "b6ae53301eb41f0f59f83c161248b186bca7da70",
              "versionType": "git"
            },
            {
              "lessThan": "9af58d10d0d8c08b822de5fc99e61f31a87ede8d",
              "status": "affected",
              "version": "00c9a452a235c61f099504783badd9a7675ff5a5",
              "versionType": "git"
            },
            {
              "lessThan": "cbd3102fe27bc87da244bf4c3ba670ea4698b0a8",
              "status": "affected",
              "version": "00c9a452a235c61f099504783badd9a7675ff5a5",
              "versionType": "git"
            },
            {
              "lessThan": "e1686ca81dbf3edbde589b7daf312b45cbf76e03",
              "status": "affected",
              "version": "00c9a452a235c61f099504783badd9a7675ff5a5",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/of/of_reserved_mem.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.13"
            },
            {
              "lessThan": "6.13",
              "status": "unaffected",
              "version": "0",
              "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": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.40",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nof: reserved_mem: avoid post-init UAF when alloc_reserved_mem_array() fails\n\nThe global pointer \u0027reserved_mem\u0027 continues to reference the\nreserved_mem_array which lives in __initdata if\nalloc_reserved_mem_array() fails. of_reserved_mem_lookup() is\nexported for post-init use, that would dereference freed memory\nand trigger a use-after-free.\n\nSo reset reserved_mem_count to 0 when alloc_reserved_mem_array()\nfails."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:17:45.878Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6d28e6ad3c5c9248577f21057baa9bf16fa9ef3b"
        },
        {
          "url": "https://git.kernel.org/stable/c/9af58d10d0d8c08b822de5fc99e61f31a87ede8d"
        },
        {
          "url": "https://git.kernel.org/stable/c/cbd3102fe27bc87da244bf4c3ba670ea4698b0a8"
        },
        {
          "url": "https://git.kernel.org/stable/c/e1686ca81dbf3edbde589b7daf312b45cbf76e03"
        }
      ],
      "title": "of: reserved_mem: avoid post-init UAF when alloc_reserved_mem_array() fails",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-74352",
    "datePublished": "2026-08-15T05:58:38.710Z",
    "dateReserved": "2026-08-15T05:44:03.886Z",
    "dateUpdated": "2026-08-17T05:17:45.878Z",
    "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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