fkie_cve-2022-49429
Vulnerability from fkie_nvd
Published
2025-02-26 07:01
Modified
2025-10-22 17:27
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: RDMA/hfi1: Prevent panic when SDMA is disabled If the hfi1 module is loaded with HFI1_CAP_SDMA off, a call to hfi1_write_iter() will dereference a NULL pointer and panic. A typical stack frame is: sdma_select_user_engine [hfi1] hfi1_user_sdma_process_request [hfi1] hfi1_write_iter [hfi1] do_iter_readv_writev do_iter_write vfs_writev do_writev do_syscall_64 The fix is to test for SDMA in hfi1_write_iter() and fail the I/O with EINVAL.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0e4dda8b3f4c07ee9ea670a10ea3171a5e63a86fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/22e7e400fd1a890db2ea13686324aff50e972f4fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/29952ab85d6c3fe0b7909d9a737f10c58bf6824dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/32e6aea33944f364d51cd263e4cd236393a188b6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/33794e8e9bcb4affc0ebff9cdec85acc8b8a1762Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/629e052d0c98e46dde9f0824f0aa437f678d9b8fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cc80d3c37cec9d6ddb140483647901bc7cc6c31dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e60ad83f645ee6fadd5a8057ba267aeec54f08fePatch
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 *


To clipboard 

{
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      "nodes": [
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/hfi1: Prevent panic when SDMA is disabled\n\nIf the hfi1 module is loaded with HFI1_CAP_SDMA off, a call to\nhfi1_write_iter() will dereference a NULL pointer and panic. A typical\nstack frame is:\n\n  sdma_select_user_engine [hfi1]\n  hfi1_user_sdma_process_request [hfi1]\n  hfi1_write_iter [hfi1]\n  do_iter_readv_writev\n  do_iter_write\n  vfs_writev\n  do_writev\n  do_syscall_64\n\nThe fix is to test for SDMA in hfi1_write_iter() and fail the I/O with\nEINVAL."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: RDMA/hfi1: Evitar p\u00e1nico cuando SDMA est\u00e1 deshabilitado Si el m\u00f3dulo hfi1 se carga con HFI1_CAP_SDMA desactivado, una llamada a hfi1_write_iter() desreferenciar\u00e1 un puntero NULL y generar\u00e1 p\u00e1nico. Un marco de pila t\u00edpico es: sdma_select_user_engine [hfi1] hfi1_user_sdma_process_request [hfi1] hfi1_write_iter [hfi1] do_iter_readv_writev do_iter_write vfs_writev do_writev do_syscall_64 La soluci\u00f3n es probar SDMA en hfi1_write_iter() y fallar la E/S con EINVAL."
    }
  ],
  "id": "CVE-2022-49429",
  "lastModified": "2025-10-22T17:27:29.653",
  "metrics": {
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          "attackComplexity": "LOW",
          "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": "2025-02-26T07:01:19.383",
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-476"
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      "source": "nvd@nist.gov",
      "type": "Primary"
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  ]
}


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