Vulnerability-Lookup

FKIE_CVE-2024-26654

Vulnerability from fkie_nvd - Published: 2024-04-01 09:15 - Updated: 2026-08-04 11:16

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.0 (High) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: ALSA: sh: aica: reorder cleanup operations to avoid UAF bugs The dreamcastcard->timer could schedule the spu_dma_work and the spu_dma_work could also arm the dreamcastcard->timer. When the snd_pcm_substream is closing, the aica_channel will be deallocated. But it could still be dereferenced in the worker thread. The reason is that del_timer() will return directly regardless of whether the timer handler is running or not and the worker could be rescheduled in the timer handler. As a result, the UAF bug will happen. The racy situation is shown below: (Thread 1) | (Thread 2) snd_aicapcm_pcm_close() | ... | run_spu_dma() //worker | mod_timer() flush_work() | del_timer() | aica_period_elapsed() //timer kfree(dreamcastcard->channel) | schedule_work() | run_spu_dma() //worker ... | dreamcastcard->channel-> //USE In order to mitigate this bug and other possible corner cases, call mod_timer() conditionally in run_spu_dma(), then implement PCM sync_stop op to cancel both the timer and worker. The sync_stop op will be called from PCM core appropriately when needed.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/051e0840ffa8ab25554d6b14b62c9ab9e4901457	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3c907bf56905de7d27b329afaf59c2fb35d17b04	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4206ad65a0ee76920041a755bd3c17c6ba59bba2	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/61d4787692c1fccdc268ffa7a891f9c149f50901	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/8c990221681688da34295d6d76cc2f5b963e83f5	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9d66ae0e7bb78b54e1e0525456c6b54e1d132046	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/aa39e6878f61f50892ee2dd9d2176f72020be845	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e955e8a7f38a856fc6534ba4e6bffd4d5cc80ac3	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/eeb2a2ca0b8de7e1c66afaf719529154e7dc60b2	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/051e0840ffa8ab25554d6b14b62c9ab9e4901457	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/3c907bf56905de7d27b329afaf59c2fb35d17b04	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/4206ad65a0ee76920041a755bd3c17c6ba59bba2	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/61d4787692c1fccdc268ffa7a891f9c149f50901	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/8c990221681688da34295d6d76cc2f5b963e83f5	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/9d66ae0e7bb78b54e1e0525456c6b54e1d132046	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/aa39e6878f61f50892ee2dd9d2176f72020be845	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/e955e8a7f38a856fc6534ba4e6bffd4d5cc80ac3	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/eeb2a2ca0b8de7e1c66afaf719529154e7dc60b2	Patch
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html	Mailing List

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	6.9
debian	debian_linux	10.0

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "sound/sh/aica.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "eeb2a2ca0b8de7e1c66afaf719529154e7dc60b2",
              "status": "affected",
              "version": "198de43d758ca2700e2b52b49c0b189b4931466c",
              "versionType": "git"
            },
            {
              "lessThan": "4206ad65a0ee76920041a755bd3c17c6ba59bba2",
              "status": "affected",
              "version": "198de43d758ca2700e2b52b49c0b189b4931466c",
              "versionType": "git"
            },
            {
              "lessThan": "aa39e6878f61f50892ee2dd9d2176f72020be845",
              "status": "affected",
              "version": "198de43d758ca2700e2b52b49c0b189b4931466c",
              "versionType": "git"
            },
            {
              "lessThan": "8c990221681688da34295d6d76cc2f5b963e83f5",
              "status": "affected",
              "version": "198de43d758ca2700e2b52b49c0b189b4931466c",
              "versionType": "git"
            },
            {
              "lessThan": "9d66ae0e7bb78b54e1e0525456c6b54e1d132046",
              "status": "affected",
              "version": "198de43d758ca2700e2b52b49c0b189b4931466c",
              "versionType": "git"
            },
            {
              "lessThan": "61d4787692c1fccdc268ffa7a891f9c149f50901",
              "status": "affected",
              "version": "198de43d758ca2700e2b52b49c0b189b4931466c",
              "versionType": "git"
            },
            {
              "lessThan": "e955e8a7f38a856fc6534ba4e6bffd4d5cc80ac3",
              "status": "affected",
              "version": "198de43d758ca2700e2b52b49c0b189b4931466c",
              "versionType": "git"
            },
            {
              "lessThan": "3c907bf56905de7d27b329afaf59c2fb35d17b04",
              "status": "affected",
              "version": "198de43d758ca2700e2b52b49c0b189b4931466c",
              "versionType": "git"
            },
            {
              "lessThan": "051e0840ffa8ab25554d6b14b62c9ab9e4901457",
              "status": "affected",
              "version": "198de43d758ca2700e2b52b49c0b189b4931466c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "sound/sh/aica.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.23"
            },
            {
              "lessThan": "2.6.23",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.312",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.274",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.215",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.154",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.84",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.24",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.8.*",
              "status": "unaffected",
              "version": "6.8.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.9",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "5FCC9944-2B27-4800-9B5A-6C9508FEAA0D",
              "versionEndExcluding": "4.19.312",
              "versionStartIncluding": "2.6.23",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "F45A0F3C-C16D-49C4-86D6-D021C3D4B834",
              "versionEndExcluding": "5.4.274",
              "versionStartIncluding": "4.20",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "9CD5894E-58E9-4B4A-B0F4-3E6BC134B8F5",
              "versionEndExcluding": "5.10.215",
              "versionStartIncluding": "5.5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "577E212E-7E95-4A71-9B5C-F1D1A3AFFF46",
              "versionEndExcluding": "5.15.154",
              "versionStartIncluding": "5.11",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "834D9BD5-42A6-4D74-979E-4D6D93F630FD",
              "versionEndExcluding": "6.1.84",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "8018C1D0-0A5F-48D0-BC72-A2B33FDDA693",
              "versionEndExcluding": "6.6.24",
              "versionStartIncluding": "6.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "6BE9771A-BAFD-4624-95F9-58D536540C53",
              "versionEndExcluding": "6.7.12",
              "versionStartIncluding": "6.7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "4C59BBC3-6495-4A77-9C82-55EC7CDF5E02",
              "versionEndExcluding": "6.8.3",
              "versionStartIncluding": "6.8",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "22BEDD49-2C6D-402D-9DBF-6646F6ECD10B",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: sh: aica: reorder cleanup operations to avoid UAF bugs\n\nThe dreamcastcard-\u003etimer could schedule the spu_dma_work and the\nspu_dma_work could also arm the dreamcastcard-\u003etimer.\n\nWhen the snd_pcm_substream is closing, the aica_channel will be\ndeallocated. But it could still be dereferenced in the worker\nthread. The reason is that del_timer() will return directly\nregardless of whether the timer handler is running or not and\nthe worker could be rescheduled in the timer handler. As a result,\nthe UAF bug will happen. The racy situation is shown below:\n\n      (Thread 1)                 |      (Thread 2)\nsnd_aicapcm_pcm_close()          |\n ...                             |  run_spu_dma() //worker\n                                 |    mod_timer()\n  flush_work()                   |\n  del_timer()                    |  aica_period_elapsed() //timer\n  kfree(dreamcastcard-\u003echannel)  |    schedule_work()\n                                 |  run_spu_dma() //worker\n  ...                            |    dreamcastcard-\u003echannel-\u003e //USE\n\nIn order to mitigate this bug and other possible corner cases,\ncall mod_timer() conditionally in run_spu_dma(), then implement\nPCM sync_stop op to cancel both the timer and worker. The sync_stop\nop will be called from PCM core appropriately when needed."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ALSA: sh: aica: reordenar operaciones de limpieza para evitar errores UAF. El dreamcastcard-\u0026gt;timer podr\u00eda programar el spu_dma_work y el spu_dma_work tambi\u00e9n podr\u00eda armar el dreamcastcard-\u0026gt;timer. Cuando se cierre snd_pcm_substream, se desasignar\u00e1 aica_channel. Pero a\u00fan se podr\u00eda eliminar la referencia en el hilo del trabajador. La raz\u00f3n es que del_timer() regresar\u00e1 directamente independientemente de si el controlador del temporizador se est\u00e1 ejecutando o no y el trabajador podr\u00eda reprogramarse en el controlador del temporizador. Como resultado, se producir\u00e1 el error UAF. La situaci\u00f3n picante se muestra a continuaci\u00f3n: (Thread 1) | (Thread 2) snd_aicapcm_pcm_close() | ... | run_spu_dma() //worker | mod_timer() flush_work() | del_timer() | aica_period_elapsed() //timer kfree(dreamcastcard-\u0026gt;channel) | schedule_work() | run_spu_dma() //worker ... | dreamcastcard-\u0026gt;channel-\u0026gt; //USE Para mitigar este error y otros posibles casos extremos, llame a mod_timer() condicionalmente en run_spu_dma(), luego implemente la operaci\u00f3n PCM sync_stop para cancelar tanto el temporizador como el trabajador. La operaci\u00f3n sync_stop se llamar\u00e1 desde el n\u00facleo PCM de forma adecuada cuando sea necesario."
    }
  ],
  "id": "CVE-2024-26654",
  "lastModified": "2026-08-04T11:16:53.580",
  "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"
      },
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.0,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-26654",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-09-10T15:53:59.432754Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-04-01T09:15:51.063",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/051e0840ffa8ab25554d6b14b62c9ab9e4901457"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/3c907bf56905de7d27b329afaf59c2fb35d17b04"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/4206ad65a0ee76920041a755bd3c17c6ba59bba2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/61d4787692c1fccdc268ffa7a891f9c149f50901"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/8c990221681688da34295d6d76cc2f5b963e83f5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/9d66ae0e7bb78b54e1e0525456c6b54e1d132046"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/aa39e6878f61f50892ee2dd9d2176f72020be845"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/e955e8a7f38a856fc6534ba4e6bffd4d5cc80ac3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/eeb2a2ca0b8de7e1c66afaf719529154e7dc60b2"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/051e0840ffa8ab25554d6b14b62c9ab9e4901457"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/3c907bf56905de7d27b329afaf59c2fb35d17b04"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/4206ad65a0ee76920041a755bd3c17c6ba59bba2"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/61d4787692c1fccdc268ffa7a891f9c149f50901"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/8c990221681688da34295d6d76cc2f5b963e83f5"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/9d66ae0e7bb78b54e1e0525456c6b54e1d132046"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/aa39e6878f61f50892ee2dd9d2176f72020be845"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/e955e8a7f38a856fc6534ba4e6bffd4d5cc80ac3"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/eeb2a2ca0b8de7e1c66afaf719529154e7dc60b2"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List"
      ],
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2024-26654 (GCVE-0-2024-26654)

Vulnerability from cvelistv5 – Published: 2024-04-01 08:35 – Updated: 2026-08-05 11:26

Title

ALSA: sh: aica: reorder cleanup operations to avoid UAF bugs

Summary

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: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 15:53 UTC

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6653 records in the last 180 days details

References

10 references

URL	Tags
https://git.kernel.org/stable/c/eeb2a2ca0b8de7e1c…
https://git.kernel.org/stable/c/4206ad65a0ee76920…
https://git.kernel.org/stable/c/aa39e6878f61f5089…
https://git.kernel.org/stable/c/8c990221681688da3…
https://git.kernel.org/stable/c/9d66ae0e7bb78b54e…
https://git.kernel.org/stable/c/61d4787692c1fccdc…
https://git.kernel.org/stable/c/e955e8a7f38a856fc…
https://git.kernel.org/stable/c/3c907bf56905de7d2…
https://git.kernel.org/stable/c/051e0840ffa8ab255…
https://lists.debian.org/debian-lts-announce/2024…	x_transferred

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 198de43d758ca2700e2b52b49c0b189b4931466c , < eeb2a2ca0b8de7e1c66afaf719529154e7dc60b2 (git) Affected: 198de43d758ca2700e2b52b49c0b189b4931466c , < 4206ad65a0ee76920041a755bd3c17c6ba59bba2 (git) Affected: 198de43d758ca2700e2b52b49c0b189b4931466c , < aa39e6878f61f50892ee2dd9d2176f72020be845 (git) Affected: 198de43d758ca2700e2b52b49c0b189b4931466c , < 8c990221681688da34295d6d76cc2f5b963e83f5 (git) Affected: 198de43d758ca2700e2b52b49c0b189b4931466c , < 9d66ae0e7bb78b54e1e0525456c6b54e1d132046 (git) Affected: 198de43d758ca2700e2b52b49c0b189b4931466c , < 61d4787692c1fccdc268ffa7a891f9c149f50901 (git) Affected: 198de43d758ca2700e2b52b49c0b189b4931466c , < e955e8a7f38a856fc6534ba4e6bffd4d5cc80ac3 (git) Affected: 198de43d758ca2700e2b52b49c0b189b4931466c , < 3c907bf56905de7d27b329afaf59c2fb35d17b04 (git) Affected: 198de43d758ca2700e2b52b49c0b189b4931466c , < 051e0840ffa8ab25554d6b14b62c9ab9e4901457 (git)
Linux	Linux	Affected: 2.6.23 Unaffected: 0 , < 2.6.23 (semver) Unaffected: 4.19.312 , ≤ 4.19.* (semver) Unaffected: 5.4.274 , ≤ 5.4.* (semver) Unaffected: 5.10.215 , ≤ 5.10.* (semver) Unaffected: 5.15.154 , ≤ 5.15.* (semver) Unaffected: 6.1.84 , ≤ 6.1.* (semver) Unaffected: 6.6.24 , ≤ 6.6.* (semver) Unaffected: 6.7.12 , ≤ 6.7.* (semver) Unaffected: 6.8.3 , ≤ 6.8.* (semver) Unaffected: 6.9 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T00:07:19.846Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/eeb2a2ca0b8de7e1c66afaf719529154e7dc60b2"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/4206ad65a0ee76920041a755bd3c17c6ba59bba2"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/aa39e6878f61f50892ee2dd9d2176f72020be845"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/8c990221681688da34295d6d76cc2f5b963e83f5"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/9d66ae0e7bb78b54e1e0525456c6b54e1d132046"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/61d4787692c1fccdc268ffa7a891f9c149f50901"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/e955e8a7f38a856fc6534ba4e6bffd4d5cc80ac3"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/3c907bf56905de7d27b329afaf59c2fb35d17b04"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/051e0840ffa8ab25554d6b14b62c9ab9e4901457"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-26654",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T15:53:59.432754Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-11T17:33:42.392Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "sound/sh/aica.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "eeb2a2ca0b8de7e1c66afaf719529154e7dc60b2",
              "status": "affected",
              "version": "198de43d758ca2700e2b52b49c0b189b4931466c",
              "versionType": "git"
            },
            {
              "lessThan": "4206ad65a0ee76920041a755bd3c17c6ba59bba2",
              "status": "affected",
              "version": "198de43d758ca2700e2b52b49c0b189b4931466c",
              "versionType": "git"
            },
            {
              "lessThan": "aa39e6878f61f50892ee2dd9d2176f72020be845",
              "status": "affected",
              "version": "198de43d758ca2700e2b52b49c0b189b4931466c",
              "versionType": "git"
            },
            {
              "lessThan": "8c990221681688da34295d6d76cc2f5b963e83f5",
              "status": "affected",
              "version": "198de43d758ca2700e2b52b49c0b189b4931466c",
              "versionType": "git"
            },
            {
              "lessThan": "9d66ae0e7bb78b54e1e0525456c6b54e1d132046",
              "status": "affected",
              "version": "198de43d758ca2700e2b52b49c0b189b4931466c",
              "versionType": "git"
            },
            {
              "lessThan": "61d4787692c1fccdc268ffa7a891f9c149f50901",
              "status": "affected",
              "version": "198de43d758ca2700e2b52b49c0b189b4931466c",
              "versionType": "git"
            },
            {
              "lessThan": "e955e8a7f38a856fc6534ba4e6bffd4d5cc80ac3",
              "status": "affected",
              "version": "198de43d758ca2700e2b52b49c0b189b4931466c",
              "versionType": "git"
            },
            {
              "lessThan": "3c907bf56905de7d27b329afaf59c2fb35d17b04",
              "status": "affected",
              "version": "198de43d758ca2700e2b52b49c0b189b4931466c",
              "versionType": "git"
            },
            {
              "lessThan": "051e0840ffa8ab25554d6b14b62c9ab9e4901457",
              "status": "affected",
              "version": "198de43d758ca2700e2b52b49c0b189b4931466c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "sound/sh/aica.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.23"
            },
            {
              "lessThan": "2.6.23",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.312",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.274",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.215",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.154",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.84",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.24",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.8.*",
              "status": "unaffected",
              "version": "6.8.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.9",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.312",
                  "versionStartIncluding": "2.6.23",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.274",
                  "versionStartIncluding": "2.6.23",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.215",
                  "versionStartIncluding": "2.6.23",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.154",
                  "versionStartIncluding": "2.6.23",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.84",
                  "versionStartIncluding": "2.6.23",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.24",
                  "versionStartIncluding": "2.6.23",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.7.12",
                  "versionStartIncluding": "2.6.23",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.8.3",
                  "versionStartIncluding": "2.6.23",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.9",
                  "versionStartIncluding": "2.6.23",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: sh: aica: reorder cleanup operations to avoid UAF bugs\n\nThe dreamcastcard-\u003etimer could schedule the spu_dma_work and the\nspu_dma_work could also arm the dreamcastcard-\u003etimer.\n\nWhen the snd_pcm_substream is closing, the aica_channel will be\ndeallocated. But it could still be dereferenced in the worker\nthread. The reason is that del_timer() will return directly\nregardless of whether the timer handler is running or not and\nthe worker could be rescheduled in the timer handler. As a result,\nthe UAF bug will happen. The racy situation is shown below:\n\n      (Thread 1)                 |      (Thread 2)\nsnd_aicapcm_pcm_close()          |\n ...                             |  run_spu_dma() //worker\n                                 |    mod_timer()\n  flush_work()                   |\n  del_timer()                    |  aica_period_elapsed() //timer\n  kfree(dreamcastcard-\u003echannel)  |    schedule_work()\n                                 |  run_spu_dma() //worker\n  ...                            |    dreamcastcard-\u003echannel-\u003e //USE\n\nIn order to mitigate this bug and other possible corner cases,\ncall mod_timer() conditionally in run_spu_dma(), then implement\nPCM sync_stop op to cancel both the timer and worker. The sync_stop\nop will be called from PCM core appropriately when needed."
        }
      ],
      "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 - The vulnerable code is reached only through the ALSA PCM character device `/dev/snd/pcmC0D0p` via open/ioctl(PREPARE,START)/close on the local system. There is no network-facing path into the Dreamcast AICA driver.\nAC:L - The attacker drives both sides of the race \u2014 arming the self-rearming timer/work pair with TRIGGER_START and then closing the substream \u2014 and the timer rearms every jiffy, so the window recurs continuously and a tight open/start/close loop wins it reliably. No condition outside the attacker\u0027s control is required.\nPR:L - Only a local unprivileged account with access to the sound device node is needed (audio group or console-user ACL); no capability, CAP_SYS_ADMIN, or root check exists anywhere on the `snd_pcm_release_substream()` \u2192 `snd_aicapcm_pcm_close()` path.\nUI:N - The attacking process performs every step itself \u2014 opening the PCM device, starting playback, and closing it \u2014 with no action from any other user.\nS:U - The use-after-free corrupts kernel slab memory within the same kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - Use-after-free on a kmalloc-32 object: `startup_aica()` reads all 32 bytes of the freed `struct aica_channel` and DMAs them into SPU memory, and the freed slot can be groomed to hold attacker-selected reclaimed kernel objects, giving a path to kernel memory disclosure.\nI:H - `run_spu_dma()` performs `dreamcastcard-\u003echannel-\u003eflags |= 0x01` on freed memory \u2014 a read-modify-write into a reclaimed kmalloc-32 object the attacker can heap-spray, yielding a controlled write primitive usable for privilege escalation.\nA:H - The revived worker also dereferences `dreamcastcard-\u003esubstream` after close sets it to NULL, giving a deterministic oops, and the UAF itself corrupts slab state leading to kernel panic."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:26:33.368Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/eeb2a2ca0b8de7e1c66afaf719529154e7dc60b2"
        },
        {
          "url": "https://git.kernel.org/stable/c/4206ad65a0ee76920041a755bd3c17c6ba59bba2"
        },
        {
          "url": "https://git.kernel.org/stable/c/aa39e6878f61f50892ee2dd9d2176f72020be845"
        },
        {
          "url": "https://git.kernel.org/stable/c/8c990221681688da34295d6d76cc2f5b963e83f5"
        },
        {
          "url": "https://git.kernel.org/stable/c/9d66ae0e7bb78b54e1e0525456c6b54e1d132046"
        },
        {
          "url": "https://git.kernel.org/stable/c/61d4787692c1fccdc268ffa7a891f9c149f50901"
        },
        {
          "url": "https://git.kernel.org/stable/c/e955e8a7f38a856fc6534ba4e6bffd4d5cc80ac3"
        },
        {
          "url": "https://git.kernel.org/stable/c/3c907bf56905de7d27b329afaf59c2fb35d17b04"
        },
        {
          "url": "https://git.kernel.org/stable/c/051e0840ffa8ab25554d6b14b62c9ab9e4901457"
        }
      ],
      "title": "ALSA: sh: aica: reorder cleanup operations to avoid UAF bugs",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-26654",
    "datePublished": "2024-04-01T08:35:19.763Z",
    "dateReserved": "2024-02-19T14:20:24.144Z",
    "dateUpdated": "2026-08-05T11:26:33.368Z",
    "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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order 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.

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.

Action not permitted