Vulnerability-Lookup

FKIE_CVE-2026-64001

Vulnerability from fkie_nvd - Published: 2026-07-19 16:17 - Updated: 2026-07-19 16:17

Severity

Summary

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: oss: Fix setup list UAF on proc write error snd_pcm_oss_proc_write() links a newly allocated setup entry into the OSS setup list before duplicating the task name. If the task-name allocation fails, the error path frees the already linked entry and leaves setup_list pointing at freed memory. A later OSS device open can then walk the stale list entry in snd_pcm_oss_look_for_setup() and dereference freed memory. Allocate the task name and initialize the setup entry before publishing the entry on setup_list. Also fetch the initial proc read iterator only after taking setup_mutex, so all setup_list traversal follows the same list lifetime rules.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4cc54bdd54b337e77115be5b55577d1c58608eae
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/8be4efd0dc0093eb7a02ad1aac936bca2a1f04ce
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/be387230dc22d870afd0e5d35912b07c2bc323bd
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e13922bb97b4e6f94f8ac02d034f2d4bd65eeb3c

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "sound/core/oss/pcm_oss.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8be4efd0dc0093eb7a02ad1aac936bca2a1f04ce",
              "status": "affected",
              "version": "060d77b9c04acd7aef60790398a53f731db8c8fe",
              "versionType": "git"
            },
            {
              "lessThan": "e13922bb97b4e6f94f8ac02d034f2d4bd65eeb3c",
              "status": "affected",
              "version": "060d77b9c04acd7aef60790398a53f731db8c8fe",
              "versionType": "git"
            },
            {
              "lessThan": "be387230dc22d870afd0e5d35912b07c2bc323bd",
              "status": "affected",
              "version": "060d77b9c04acd7aef60790398a53f731db8c8fe",
              "versionType": "git"
            },
            {
              "lessThan": "4cc54bdd54b337e77115be5b55577d1c58608eae",
              "status": "affected",
              "version": "060d77b9c04acd7aef60790398a53f731db8c8fe",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "sound/core/oss/pcm_oss.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.17"
            },
            {
              "lessThan": "2.6.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.93",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.35",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "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\nALSA: pcm: oss: Fix setup list UAF on proc write error\n\nsnd_pcm_oss_proc_write() links a newly allocated setup entry into the\nOSS setup list before duplicating the task name. If the task-name\nallocation fails, the error path frees the already linked entry and\nleaves setup_list pointing at freed memory.\n\nA later OSS device open can then walk the stale list entry in\nsnd_pcm_oss_look_for_setup() and dereference freed memory.\n\nAllocate the task name and initialize the setup entry before publishing\nthe entry on setup_list. Also fetch the initial proc read iterator only\nafter taking setup_mutex, so all setup_list traversal follows the same\nlist lifetime rules."
    }
  ],
  "id": "CVE-2026-64001",
  "lastModified": "2026-07-19T16:17:39.700",
  "metrics": {},
  "published": "2026-07-19T16:17:39.700",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4cc54bdd54b337e77115be5b55577d1c58608eae"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/8be4efd0dc0093eb7a02ad1aac936bca2a1f04ce"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/be387230dc22d870afd0e5d35912b07c2bc323bd"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e13922bb97b4e6f94f8ac02d034f2d4bd65eeb3c"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

CVE-2026-64001 (GCVE-0-2026-64001)

Vulnerability from cvelistv5 – Published: 2026-07-19 14:56 – Updated: 2026-07-19 14:56

Title

ALSA: pcm: oss: Fix setup list UAF on proc write error

Summary

Severity

No CVSS data available.

Assigner

Linux

References

4 references

URL	Tags
https://git.kernel.org/stable/c/8be4efd0dc0093eb7…
https://git.kernel.org/stable/c/e13922bb97b4e6f94…
https://git.kernel.org/stable/c/be387230dc22d870a…
https://git.kernel.org/stable/c/4cc54bdd54b337e77…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 060d77b9c04acd7aef60790398a53f731db8c8fe , < 8be4efd0dc0093eb7a02ad1aac936bca2a1f04ce (git) Affected: 060d77b9c04acd7aef60790398a53f731db8c8fe , < e13922bb97b4e6f94f8ac02d034f2d4bd65eeb3c (git) Affected: 060d77b9c04acd7aef60790398a53f731db8c8fe , < be387230dc22d870afd0e5d35912b07c2bc323bd (git) Affected: 060d77b9c04acd7aef60790398a53f731db8c8fe , < 4cc54bdd54b337e77115be5b55577d1c58608eae (git)
Linux	Linux	Affected: 2.6.17 Unaffected: 0 , < 2.6.17 (semver) Unaffected: 6.12.93 , ≤ 6.12.* (semver) Unaffected: 6.18.35 , ≤ 6.18.* (semver) Unaffected: 7.0.12 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "sound/core/oss/pcm_oss.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8be4efd0dc0093eb7a02ad1aac936bca2a1f04ce",
              "status": "affected",
              "version": "060d77b9c04acd7aef60790398a53f731db8c8fe",
              "versionType": "git"
            },
            {
              "lessThan": "e13922bb97b4e6f94f8ac02d034f2d4bd65eeb3c",
              "status": "affected",
              "version": "060d77b9c04acd7aef60790398a53f731db8c8fe",
              "versionType": "git"
            },
            {
              "lessThan": "be387230dc22d870afd0e5d35912b07c2bc323bd",
              "status": "affected",
              "version": "060d77b9c04acd7aef60790398a53f731db8c8fe",
              "versionType": "git"
            },
            {
              "lessThan": "4cc54bdd54b337e77115be5b55577d1c58608eae",
              "status": "affected",
              "version": "060d77b9c04acd7aef60790398a53f731db8c8fe",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "sound/core/oss/pcm_oss.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.17"
            },
            {
              "lessThan": "2.6.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.93",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.35",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.12",
              "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": "6.12.93",
                  "versionStartIncluding": "2.6.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.35",
                  "versionStartIncluding": "2.6.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.12",
                  "versionStartIncluding": "2.6.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "2.6.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: pcm: oss: Fix setup list UAF on proc write error\n\nsnd_pcm_oss_proc_write() links a newly allocated setup entry into the\nOSS setup list before duplicating the task name. If the task-name\nallocation fails, the error path frees the already linked entry and\nleaves setup_list pointing at freed memory.\n\nA later OSS device open can then walk the stale list entry in\nsnd_pcm_oss_look_for_setup() and dereference freed memory.\n\nAllocate the task name and initialize the setup entry before publishing\nthe entry on setup_list. Also fetch the initial proc read iterator only\nafter taking setup_mutex, so all setup_list traversal follows the same\nlist lifetime rules."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-19T14:56:18.816Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8be4efd0dc0093eb7a02ad1aac936bca2a1f04ce"
        },
        {
          "url": "https://git.kernel.org/stable/c/e13922bb97b4e6f94f8ac02d034f2d4bd65eeb3c"
        },
        {
          "url": "https://git.kernel.org/stable/c/be387230dc22d870afd0e5d35912b07c2bc323bd"
        },
        {
          "url": "https://git.kernel.org/stable/c/4cc54bdd54b337e77115be5b55577d1c58608eae"
        }
      ],
      "title": "ALSA: pcm: oss: Fix setup list UAF on proc write error",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-64001",
    "datePublished": "2026-07-19T14:56:18.816Z",
    "dateReserved": "2026-07-19T07:54:57.026Z",
    "dateUpdated": "2026-07-19T14:56:18.816Z",
    "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

FKIE_CVE-2026-64001

CVE-2026-64001 (GCVE-0-2026-64001)

Tags

Sightings

Nomenclature