FKIE_CVE-2023-54315

Vulnerability from fkie_nvd - Published: 2025-12-30 13:16 - Updated: 2025-12-31 20:42
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: powerpc/powernv/sriov: perform null check on iov before dereferencing iov Currently pointer iov is being dereferenced before the null check of iov which can lead to null pointer dereference errors. Fix this by moving the iov null check before the dereferencing. Detected using cppcheck static analysis: linux/arch/powerpc/platforms/powernv/pci-sriov.c:597:12: warning: Either the condition '!iov' is redundant or there is possible null pointer dereference: iov. [nullPointerRedundantCheck] num_vfs = iov->num_vfs; ^
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/07c19c0ad4b07f4b598da369714de028f6a6a323
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6314465b88072a6b6f3b3c12a7898abe09095f95
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/72990144e17e5e2cb378f1d9b10530b85b9bc382
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d3a0d96c16e5f8d55e2c70163abda3c7c8328106
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d9a1aaea856002cb58dfb7c8d8770400fa1a0299
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f4f913c980bc6abe0ccfe88fe3909c125afe4a2d
Impacted products
Vendor Product Version
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/powernv/sriov: perform null check on iov before dereferencing iov\n\nCurrently pointer iov is being dereferenced before the null check of iov\nwhich can lead to null pointer dereference errors. Fix this by moving the\niov null check before the dereferencing.\n\nDetected using cppcheck static analysis:\nlinux/arch/powerpc/platforms/powernv/pci-sriov.c:597:12: warning: Either\nthe condition \u0027!iov\u0027 is redundant or there is possible null pointer\ndereference: iov. [nullPointerRedundantCheck]\n num_vfs = iov-\u003enum_vfs;\n           ^"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\npowerpc/powernv/sriov: realizar una comprobaci\u00f3n de nulo en iov antes de desreferenciar iov\n\nActualmente, el puntero iov est\u00e1 siendo desreferenciado antes de la comprobaci\u00f3n de nulo de iov, lo que puede llevar a errores de desreferencia de puntero nulo. Solucione esto moviendo la comprobaci\u00f3n de nulo de iov antes de la desreferencia.\n\nDetectado usando an\u00e1lisis est\u00e1tico de cppcheck:\nlinux/arch/powerpc/platforms/powernv/pci-sriov.c:597:12: advertencia: O la condici\u00f3n \u0027!iov\u0027 es redundante o hay una posible desreferencia de puntero nulo: iov. [nullPointerRedundantCheck]\n num_vfs = iov-\u0026gt;num_vfs;\n           ^"
    }
  ],
  "id": "CVE-2023-54315",
  "lastModified": "2025-12-31T20:42:43.210",
  "metrics": {},
  "published": "2025-12-30T13:16:20.760",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/07c19c0ad4b07f4b598da369714de028f6a6a323"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6314465b88072a6b6f3b3c12a7898abe09095f95"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/72990144e17e5e2cb378f1d9b10530b85b9bc382"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d3a0d96c16e5f8d55e2c70163abda3c7c8328106"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d9a1aaea856002cb58dfb7c8d8770400fa1a0299"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f4f913c980bc6abe0ccfe88fe3909c125afe4a2d"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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