CVE-2026-64481 (GCVE-0-2026-64481)

Vulnerability from cvelistv5 – Published: 2026-07-25 08:51 – Updated: 2026-10-30 12:27
VLAI
Title
ALSA: hda/cs35l41: Fix firmware load work teardown
Summary
In the Linux kernel, the following vulnerability has been resolved: ALSA: hda/cs35l41: Fix firmware load work teardown cs35l41_hda creates ALSA controls whose private data points at the cs35l41_hda object. The firmware load control can also queue fw_load_work. Those controls are not removed on component unbind, and device remove only cancels fw_load_work through cs35l41_remove_dsp(). That helper is skipped when halo_initialized is false. With firmware_autostart disabled, a firmware load can be requested before the DSP has been initialized. If the component or device is removed before the queued work runs, the worker can run after teardown and dereference driver state that is no longer valid. Track the created controls and remove them on unbind so no new control callback can reach the driver data or queue more work. Then cancel fw_load_work to drain any request that was already queued. Also cancel the work unconditionally during device remove before runtime PM teardown.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 15:41 UTC
CWE
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6639 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8 , < b3647e5b7b817272fdef057948c37fcb0704edc7 (git)
Affected: 47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8 , < 3e339c88b8c3044919fd1936a8b23124285d0de6 (git)
Affected: 47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8 , < 8947215c0136c9d905e4a46d824824f8b48a2e5b (git)
Affected: 47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8 , < ce0a903d0591e3e2c790c5b628802b08d1b287cc (git)
Affected: 47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8 , < d6a40a4d083ef74d00c8f9516cb5ff07ac70720b (git)
Affected: 47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8 , < b65020d5398f499c09498c9786dba6d67ae57664 (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.0
Unaffected: 0 , < 6.0 (semver)
Unaffected: 6.1.191 , ≤ 6.1.* (semver)
Unaffected: 6.6.160 , ≤ 6.6.* (semver)
Unaffected: 6.12.97 , ≤ 6.12.* (semver)
Unaffected: 6.18.39 , ≤ 6.18.* (semver)
Unaffected: 7.1.4 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-64481",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-16T15:41:19.470343Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-416",
                "description": "CWE-416 Use After Free",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-19T20:48:36.885Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "sound/hda/codecs/side-codecs/cs35l41_hda.c",
            "sound/hda/codecs/side-codecs/cs35l41_hda.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b3647e5b7b817272fdef057948c37fcb0704edc7",
              "status": "affected",
              "version": "47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8",
              "versionType": "git"
            },
            {
              "lessThan": "3e339c88b8c3044919fd1936a8b23124285d0de6",
              "status": "affected",
              "version": "47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8",
              "versionType": "git"
            },
            {
              "lessThan": "8947215c0136c9d905e4a46d824824f8b48a2e5b",
              "status": "affected",
              "version": "47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8",
              "versionType": "git"
            },
            {
              "lessThan": "ce0a903d0591e3e2c790c5b628802b08d1b287cc",
              "status": "affected",
              "version": "47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8",
              "versionType": "git"
            },
            {
              "lessThan": "d6a40a4d083ef74d00c8f9516cb5ff07ac70720b",
              "status": "affected",
              "version": "47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8",
              "versionType": "git"
            },
            {
              "lessThan": "b65020d5398f499c09498c9786dba6d67ae57664",
              "status": "affected",
              "version": "47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "sound/hda/codecs/side-codecs/cs35l41_hda.c",
            "sound/hda/codecs/side-codecs/cs35l41_hda.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.0"
            },
            {
              "lessThan": "6.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.191",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.160",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.39",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.4",
              "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": "6.1.191",
                  "versionStartIncluding": "6.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.160",
                  "versionStartIncluding": "6.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.97",
                  "versionStartIncluding": "6.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.39",
                  "versionStartIncluding": "6.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.4",
                  "versionStartIncluding": "6.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: hda/cs35l41: Fix firmware load work teardown\n\ncs35l41_hda creates ALSA controls whose private data points at the\ncs35l41_hda object. The firmware load control can also queue\nfw_load_work.\n\nThose controls are not removed on component unbind, and device remove\nonly cancels fw_load_work through cs35l41_remove_dsp(). That helper is\nskipped when halo_initialized is false. With firmware_autostart\ndisabled, a firmware load can be requested before the DSP has been\ninitialized. If the component or device is removed before the queued\nwork runs, the worker can run after teardown and dereference driver\nstate that is no longer valid.\n\nTrack the created controls and remove them on unbind so no new control\ncallback can reach the driver data or queue more work. Then cancel\nfw_load_work to drain any request that was already queued. Also cancel\nthe work unconditionally during device remove before runtime PM teardown."
        }
      ],
      "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 - An attacker reaches the vulnerable callbacks through ALSA control ioctls on /dev/snd/controlC*. No network or physical protocol directly exposes this path.\nAC:L - After teardown, stale controls can repeatedly dereference the freed object or queue its embedded work item, so exploitation does not require winning a narrow race. A queued work_struct also remains directly usable after its containing allocation is freed.\nPR:L - An unprivileged user with ordinary audio-device access can invoke the control callbacks. The ioctl path contains no capability, namespace, or administrative privilege check.\nUI:N - Exploitation requires no victim to open content or perform an interactive action.\nS:U - The vulnerable driver and the affected kernel resources are governed by the same kernel security authority.\nC:H - The heap use-after-free permits attacker-influenced reuse and disclosure of freed kernel object contents, potentially supporting arbitrary kernel memory reads.\nI:H - The freed object embeds mutable workqueue list state and a function pointer that is subsequently invoked, making kernel memory corruption and control-flow hijacking defensible.\nA:H - Stale control accesses or corrupted queued work can cause a kernel oops, panic, or workqueue corruption, resulting in complete system unavailability."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-30T12:27:57.910Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b3647e5b7b817272fdef057948c37fcb0704edc7"
        },
        {
          "url": "https://git.kernel.org/stable/c/3e339c88b8c3044919fd1936a8b23124285d0de6"
        },
        {
          "url": "https://git.kernel.org/stable/c/8947215c0136c9d905e4a46d824824f8b48a2e5b"
        },
        {
          "url": "https://git.kernel.org/stable/c/ce0a903d0591e3e2c790c5b628802b08d1b287cc"
        },
        {
          "url": "https://git.kernel.org/stable/c/d6a40a4d083ef74d00c8f9516cb5ff07ac70720b"
        },
        {
          "url": "https://git.kernel.org/stable/c/b65020d5398f499c09498c9786dba6d67ae57664"
        }
      ],
      "title": "ALSA: hda/cs35l41: Fix firmware load work teardown",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-64481",
    "datePublished": "2026-07-25T08:51:42.430Z",
    "dateReserved": "2026-07-19T15:36:31.791Z",
    "dateUpdated": "2026-10-30T12:27:57.910Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-64481",
      "date": "2026-11-09",
      "epss": "0.00176",
      "percentile": "0.07136"
    },
    "microsoft_vex": {
      "current_release_date": "2026-07-27T14:42:22.000Z",
      "cve": "CVE-2026-64481",
      "id": "msrc_CVE-2026-64481",
      "initial_release_date": "2026-07-26T01:11:46.000Z",
      "product_status:known_affected": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "ALSA: hda/cs35l41: Fix firmware load work teardown",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-64481.json",
      "version": "2"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "sound/hda/codecs/side-codecs/cs35l41_hda.c",
                  "sound/hda/codecs/side-codecs/cs35l41_hda.h"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "lessThan": "b3647e5b7b817272fdef057948c37fcb0704edc7",
                    "status": "affected",
                    "version": "47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "3e339c88b8c3044919fd1936a8b23124285d0de6",
                    "status": "affected",
                    "version": "47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "8947215c0136c9d905e4a46d824824f8b48a2e5b",
                    "status": "affected",
                    "version": "47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "ce0a903d0591e3e2c790c5b628802b08d1b287cc",
                    "status": "affected",
                    "version": "47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "d6a40a4d083ef74d00c8f9516cb5ff07ac70720b",
                    "status": "affected",
                    "version": "47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "b65020d5398f499c09498c9786dba6d67ae57664",
                    "status": "affected",
                    "version": "47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "sound/hda/codecs/side-codecs/cs35l41_hda.c",
                  "sound/hda/codecs/side-codecs/cs35l41_hda.h"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "6.0"
                  },
                  {
                    "lessThan": "6.0",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.1.*",
                    "status": "unaffected",
                    "version": "6.1.191",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.6.*",
                    "status": "unaffected",
                    "version": "6.6.160",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.12.*",
                    "status": "unaffected",
                    "version": "6.12.97",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.18.*",
                    "status": "unaffected",
                    "version": "6.18.39",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "7.1.*",
                    "status": "unaffected",
                    "version": "7.1.4",
                    "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\nALSA: hda/cs35l41: Fix firmware load work teardown\n\ncs35l41_hda creates ALSA controls whose private data points at the\ncs35l41_hda object. The firmware load control can also queue\nfw_load_work.\n\nThose controls are not removed on component unbind, and device remove\nonly cancels fw_load_work through cs35l41_remove_dsp(). That helper is\nskipped when halo_initialized is false. With firmware_autostart\ndisabled, a firmware load can be requested before the DSP has been\ninitialized. If the component or device is removed before the queued\nwork runs, the worker can run after teardown and dereference driver\nstate that is no longer valid.\n\nTrack the created controls and remove them on unbind so no new control\ncallback can reach the driver data or queue more work. Then cancel\nfw_load_work to drain any request that was already queued. Also cancel\nthe work unconditionally during device remove before runtime PM teardown."
          }
        ],
        "id": "CVE-2026-64481",
        "lastModified": "2026-11-03T18:15:39.353",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 7.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 5.9,
              "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-64481",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-16T15:41:19.470343Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-07-25T10:17:33.733",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/3e339c88b8c3044919fd1936a8b23124285d0de6"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/8947215c0136c9d905e4a46d824824f8b48a2e5b"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/b3647e5b7b817272fdef057948c37fcb0704edc7"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/b65020d5398f499c09498c9786dba6d67ae57664"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/ce0a903d0591e3e2c790c5b628802b08d1b287cc"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/d6a40a4d083ef74d00c8f9516cb5ff07ac70720b"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Awaiting Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-416"
              }
            ],
            "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
            "type": "Secondary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-11-05T22:05:41+00:00",
      "cve": "CVE-2026-64481",
      "id": "CVE-2026-64481",
      "initial_release_date": "2026-07-25T00:00:00+00:00",
      "product_status:fixed": "623",
      "product_status:known_affected": "22",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: ALSA: hda/cs35l41: Fix firmware load work teardown",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-64481.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-64481",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "total"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-10-16T15:41:19.470343Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "problemTypes": [
              {
                "descriptions": [
                  {
                    "cweId": "CWE-416",
                    "description": "CWE-416 Use After Free",
                    "lang": "en",
                    "type": "CWE"
                  }
                ]
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-10-16T15:41:20.219Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "sound/hda/codecs/side-codecs/cs35l41_hda.c",
                "sound/hda/codecs/side-codecs/cs35l41_hda.h"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "lessThan": "3e339c88b8c3044919fd1936a8b23124285d0de6",
                  "status": "affected",
                  "version": "47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8",
                  "versionType": "git"
                },
                {
                  "lessThan": "8947215c0136c9d905e4a46d824824f8b48a2e5b",
                  "status": "affected",
                  "version": "47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8",
                  "versionType": "git"
                },
                {
                  "lessThan": "ce0a903d0591e3e2c790c5b628802b08d1b287cc",
                  "status": "affected",
                  "version": "47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8",
                  "versionType": "git"
                },
                {
                  "lessThan": "d6a40a4d083ef74d00c8f9516cb5ff07ac70720b",
                  "status": "affected",
                  "version": "47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8",
                  "versionType": "git"
                },
                {
                  "lessThan": "b65020d5398f499c09498c9786dba6d67ae57664",
                  "status": "affected",
                  "version": "47ceabd99a28399f8971f4ca0a37ebc0a21dd2a8",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "sound/hda/codecs/side-codecs/cs35l41_hda.c",
                "sound/hda/codecs/side-codecs/cs35l41_hda.h"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "6.0"
                },
                {
                  "lessThan": "6.0",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.6.*",
                  "status": "unaffected",
                  "version": "6.6.160",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.12.*",
                  "status": "unaffected",
                  "version": "6.12.97",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.18.*",
                  "status": "unaffected",
                  "version": "6.18.39",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "7.1.*",
                  "status": "unaffected",
                  "version": "7.1.4",
                  "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": "6.6.160",
                      "versionStartIncluding": "6.0",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.12.97",
                      "versionStartIncluding": "6.0",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "6.18.39",
                      "versionStartIncluding": "6.0",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "7.1.4",
                      "versionStartIncluding": "6.0",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "7.2",
                      "versionStartIncluding": "6.0",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: hda/cs35l41: Fix firmware load work teardown\n\ncs35l41_hda creates ALSA controls whose private data points at the\ncs35l41_hda object. The firmware load control can also queue\nfw_load_work.\n\nThose controls are not removed on component unbind, and device remove\nonly cancels fw_load_work through cs35l41_remove_dsp(). That helper is\nskipped when halo_initialized is false. With firmware_autostart\ndisabled, a firmware load can be requested before the DSP has been\ninitialized. If the component or device is removed before the queued\nwork runs, the worker can run after teardown and dereference driver\nstate that is no longer valid.\n\nTrack the created controls and remove them on unbind so no new control\ncallback can reach the driver data or queue more work. Then cancel\nfw_load_work to drain any request that was already queued. Also cancel\nthe work unconditionally during device remove before runtime PM teardown."
            }
          ],
          "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 - An attacker reaches the vulnerable callbacks through ALSA control ioctls on /dev/snd/controlC*. No network or physical protocol directly exposes this path.\nAC:L - After teardown, stale controls can repeatedly dereference the freed object or queue its embedded work item, so exploitation does not require winning a narrow race. A queued work_struct also remains directly usable after its containing allocation is freed.\nPR:L - An unprivileged user with ordinary audio-device access can invoke the control callbacks. The ioctl path contains no capability, namespace, or administrative privilege check.\nUI:N - Exploitation requires no victim to open content or perform an interactive action.\nS:U - The vulnerable driver and the affected kernel resources are governed by the same kernel security authority.\nC:H - The heap use-after-free permits attacker-influenced reuse and disclosure of freed kernel object contents, potentially supporting arbitrary kernel memory reads.\nI:H - The freed object embeds mutable workqueue list state and a function pointer that is subsequently invoked, making kernel memory corruption and control-flow hijacking defensible.\nA:H - Stale control accesses or corrupted queued work can cause a kernel oops, panic, or workqueue corruption, resulting in complete system unavailability."
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-10-21T12:43:23.321Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/3e339c88b8c3044919fd1936a8b23124285d0de6"
            },
            {
              "url": "https://git.kernel.org/stable/c/8947215c0136c9d905e4a46d824824f8b48a2e5b"
            },
            {
              "url": "https://git.kernel.org/stable/c/ce0a903d0591e3e2c790c5b628802b08d1b287cc"
            },
            {
              "url": "https://git.kernel.org/stable/c/d6a40a4d083ef74d00c8f9516cb5ff07ac70720b"
            },
            {
              "url": "https://git.kernel.org/stable/c/b65020d5398f499c09498c9786dba6d67ae57664"
            }
          ],
          "title": "ALSA: hda/cs35l41: Fix firmware load work teardown",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2026-64481",
        "datePublished": "2026-07-25T08:51:42.430Z",
        "dateReserved": "2026-07-19T15:36:31.791Z",
        "dateUpdated": "2026-10-21T12:43:23.321Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.

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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

JSON
How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Loading timeline…




    Related by attack behaviour

    Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.