fkie_cve-2022-49089
Vulnerability from fkie_nvd
Published
2025-02-26 07:00
Modified
2025-09-23 18:11
Severity ?
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: IB/rdmavt: add lock to call to rvt_error_qp to prevent a race condition The documentation of the function rvt_error_qp says both r_lock and s_lock need to be held when calling that function. It also asserts using lockdep that both of those locks are held. However, the commit I referenced in Fixes accidentally makes the call to rvt_error_qp in rvt_ruc_loopback no longer covered by r_lock. This results in the lockdep assertion failing and also possibly in a race condition.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/43c2d7890ecabe527448a6c391fb2d9a5e6bbfe0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4d809f69695d4e7d1378b3a072fa9aef23123018Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/57800cc36e55db0547461c49acf5cd84c0f502b0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/77ffb2495a41098f9d6a14f8aefde3188da75944Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8a50937227c385a477177c9ffa122b4230e40666Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/92f1947c0d26060e978b3a9f21f32ce7c8c9cca3Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 5.18


To clipboard 

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nIB/rdmavt: add lock to call to rvt_error_qp to prevent a race condition\n\nThe documentation of the function rvt_error_qp says both r_lock and s_lock\nneed to be held when calling that function.  It also asserts using lockdep\nthat both of those locks are held.  However, the commit I referenced in\nFixes accidentally makes the call to rvt_error_qp in rvt_ruc_loopback no\nlonger covered by r_lock.  This results in the lockdep assertion failing\nand also possibly in a race condition."
    },
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      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: IB/rdmavt: agregar bloqueo a la llamada a rvt_error_qp para evitar una condici\u00f3n de ejecuci\u00f3n La documentaci\u00f3n de la funci\u00f3n rvt_error_qp dice que tanto r_lock como s_lock deben mantenerse al llamar a esa funci\u00f3n. Tambi\u00e9n afirma usando lockdep que ambos bloqueos se mantienen. Sin embargo, el commit a la que hice referencia en Correcciones hace que la llamada a rvt_error_qp en rvt_ruc_loopback ya no est\u00e9 cubierta por r_lock. Esto da como resultado que la afirmaci\u00f3n de lockdep falle y tambi\u00e9n posiblemente en una condici\u00f3n de ejecuci\u00f3n."
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  "id": "CVE-2022-49089",
  "lastModified": "2025-09-23T18:11:30.040",
  "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",
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        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2025-02-26T07:00:46.240",
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      "source": "nvd@nist.gov",
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}


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