fkie_cve-2022-49344
Vulnerability from fkie_nvd
Published
2025-02-26 07:01
Modified
2025-10-01 20:16
Severity ?
4.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
4.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: af_unix: Fix a data-race in unix_dgram_peer_wake_me(). unix_dgram_poll() calls unix_dgram_peer_wake_me() without `other`'s lock held and check if its receive queue is full. Here we need to use unix_recvq_full_lockless() instead of unix_recvq_full(), otherwise KCSAN will report a data-race.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/556720013c36c193d9cbfb06e7b33e51f0c39fbfPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/662a80946ce13633ae90a55379f1346c10f0c432Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/71e8bfc7f838cabc60cba24e09ca84c4f8321ab2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8801eb3ccd2e4e3b1a01449383e3321ae6dbd9d6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/95f0ba806277733bf6024e23e27e1be773701ccaPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c61848500a3fd6867dfa4834b8c7f97133eceb9fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c926ae58f24f7bd55aa2ea4add9f952032507913Patch
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 *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 5.19


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naf_unix: Fix a data-race in unix_dgram_peer_wake_me().\n\nunix_dgram_poll() calls unix_dgram_peer_wake_me() without `other`\u0027s\nlock held and check if its receive queue is full.  Here we need to\nuse unix_recvq_full_lockless() instead of unix_recvq_full(), otherwise\nKCSAN will report a data-race."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: af_unix: Se solucion\u00f3 una ejecuci\u00f3n de datos en unix_dgram_peer_wake_me(). unix_dgram_poll() llama a unix_dgram_peer_wake_me() sin el bloqueo de `other` y verifica si su cola de recepci\u00f3n est\u00e1 llena. Aqu\u00ed necesitamos usar unix_recvq_full_lockless() en lugar de unix_recvq_full(), de lo contrario KCSAN informar\u00e1 una ejecuci\u00f3n de datos."
    }
  ],
  "id": "CVE-2022-49344",
  "lastModified": "2025-10-01T20:16:11.017",
  "metrics": {
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          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
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          "integrityImpact": "NONE",
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          "userInteraction": "NONE",
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}


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