fkie_cve-2024-57890
Vulnerability from fkie_nvd
Published
2025-01-15 13:15
Modified
2025-01-21 17:41
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/uverbs: Prevent integer overflow issue In the expression "cmd.wqe_size * cmd.wr_count", both variables are u32 values that come from the user so the multiplication can lead to integer wrapping. Then we pass the result to uverbs_request_next_ptr() which also could potentially wrap. The "cmd.sge_count * sizeof(struct ib_uverbs_sge)" multiplication can also overflow on 32bit systems although it's fine on 64bit systems. This patch does two things. First, I've re-arranged the condition in uverbs_request_next_ptr() so that the use controlled variable "len" is on one side of the comparison by itself without any math. Then I've modified all the callers to use size_mul() for the multiplications.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/346db03e9926ab7117ed9bf19665699c037c773cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/42a6eb4ed7a9a41ba0b83eb0c7e0225b5fca5608Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b3ef4ae713360501182695dd47d6b4f6e1a43eb8Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b92667f755749cf10d9ef1088865c555ae83ffb7Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c2f961c46ea0e5274c5c320d007c2dd949cf627aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c57721b24bd897338a81a0ca5fff41600f0f1ad1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d0257e089d1bbd35c69b6c97ff73e3690ab149a9Patch
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 6.13
linux linux_kernel 6.13
linux linux_kernel 6.13
linux linux_kernel 6.13
linux linux_kernel 6.13


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\nRDMA/uverbs: Prevent integer overflow issue\n\nIn the expression \"cmd.wqe_size * cmd.wr_count\", both variables are u32\nvalues that come from the user so the multiplication can lead to integer\nwrapping.  Then we pass the result to uverbs_request_next_ptr() which also\ncould potentially wrap.  The \"cmd.sge_count * sizeof(struct ib_uverbs_sge)\"\nmultiplication can also overflow on 32bit systems although it\u0027s fine on\n64bit systems.\n\nThis patch does two things.  First, I\u0027ve re-arranged the condition in\nuverbs_request_next_ptr() so that the use controlled variable \"len\" is on\none side of the comparison by itself without any math.  Then I\u0027ve modified\nall the callers to use size_mul() for the multiplications."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: RDMA/uverbs: Evitar problema de desbordamiento de enteros En la expresi\u00f3n \"cmd.wqe_size * cmd.wr_count\", ambas variables son valores u32 que provienen del usuario, por lo que la multiplicaci\u00f3n puede provocar un encapsulamiento de enteros. Luego, pasamos el resultado a uverbs_request_next_ptr(), que tambi\u00e9n podr\u00eda potencialmente encapsularse. La multiplicaci\u00f3n \"cmd.sge_count * sizeof(struct ib_uverbs_sge)\" tambi\u00e9n puede desbordarse en sistemas de 32 bits, aunque est\u00e1 bien en sistemas de 64 bits. Este parche hace dos cosas. Primero, he reorganizado la condici\u00f3n en uverbs_request_next_ptr() para que la variable controlada por uso \"len\" est\u00e9 en un lado de la comparaci\u00f3n por s\u00ed misma sin ning\u00fan c\u00e1lculo. Luego, he modificado todos los llamadores para usar size_mul() para las multiplicaciones."
    }
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  "id": "CVE-2024-57890",
  "lastModified": "2025-01-21T17:41:24.450",
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          "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": "2025-01-15T13:15:13.473",
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  "vulnStatus": "Analyzed",
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      "source": "nvd@nist.gov",
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}


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