fkie_cve-2023-52774
Vulnerability from fkie_nvd
Published
2024-05-21 16:15
Modified
2025-09-23 20:00
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: s390/dasd: protect device queue against concurrent access In dasd_profile_start() the amount of requests on the device queue are counted. The access to the device queue is unprotected against concurrent access. With a lot of parallel I/O, especially with alias devices enabled, the device queue can change while dasd_profile_start() is accessing the queue. In the worst case this leads to a kernel panic due to incorrect pointer accesses. Fix this by taking the device lock before accessing the queue and counting the requests. Additionally the check for a valid profile data pointer can be done earlier to avoid unnecessary locking in a hot path.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6062c527d0403cef27c54b91ac8390c3a497b250Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9372aab5d0ff621ea203c8c603e7e5f75e888240Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c841de6247e94e07566d57163d3c0d8b29278f7aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/db46cd1e0426f52999d50fa72cfa97fa39952885Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dc96fde8fcb2b896fd6c64802a7f4ece2e69b0bePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ebdc569a07a3e8dbe66b4184922ad6f88ac0b96fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f1ac7789406e2ca9ac51c41ad2daa597f47bdd4dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f75617cc8df4155374132f0b500b0b3ebb967458Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/6062c527d0403cef27c54b91ac8390c3a497b250Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9372aab5d0ff621ea203c8c603e7e5f75e888240Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c841de6247e94e07566d57163d3c0d8b29278f7aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/db46cd1e0426f52999d50fa72cfa97fa39952885Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/dc96fde8fcb2b896fd6c64802a7f4ece2e69b0bePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ebdc569a07a3e8dbe66b4184922ad6f88ac0b96fPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f1ac7789406e2ca9ac51c41ad2daa597f47bdd4dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f75617cc8df4155374132f0b500b0b3ebb967458Patch
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 6.7
linux linux_kernel 6.7


To clipboard 

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  "descriptions": [
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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/dasd: protect device queue against concurrent access\n\nIn dasd_profile_start() the amount of requests on the device queue are\ncounted. The access to the device queue is unprotected against\nconcurrent access. With a lot of parallel I/O, especially with alias\ndevices enabled, the device queue can change while dasd_profile_start()\nis accessing the queue. In the worst case this leads to a kernel panic\ndue to incorrect pointer accesses.\n\nFix this by taking the device lock before accessing the queue and\ncounting the requests. Additionally the check for a valid profile data\npointer can be done earlier to avoid unnecessary locking in a hot path."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: s390/dasd: protege la cola de dispositivos contra el acceso concurrente. En dasd_profile_start() se cuenta la cantidad de solicitudes en la cola de dispositivos. El acceso a la cola de dispositivos no est\u00e1 protegido contra el acceso simult\u00e1neo. Con muchas E/S paralelas, especialmente con dispositivos alias habilitados, la cola de dispositivos puede cambiar mientras dasd_profile_start() accede a la cola. En el peor de los casos, esto provoca un p\u00e1nico en el kernel debido a accesos incorrectos al puntero. Solucione este problema bloqueando el dispositivo antes de acceder a la cola y contando las solicitudes. Adem\u00e1s, la verificaci\u00f3n de un puntero de datos de perfil v\u00e1lido se puede realizar antes para evitar bloqueos innecesarios en una ruta activa."
    }
  ],
  "id": "CVE-2023-52774",
  "lastModified": "2025-09-23T20:00:36.837",
  "metrics": {
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          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
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        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2024-05-21T16:15:16.537",
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}


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