fkie_cve-2023-53658
Vulnerability from fkie_nvd
Published
2025-10-07 16:15
Modified
2025-10-08 19:38
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: spi: bcm-qspi: return error if neither hif_mspi nor mspi is available If neither a "hif_mspi" nor "mspi" resource is present, the driver will just early exit in probe but still return success. Apart from not doing anything meaningful, this would then also lead to a null pointer access on removal, as platform_get_drvdata() would return NULL, which it would then try to dereference when trying to unregister the spi master. Fix this by unconditionally calling devm_ioremap_resource(), as it can handle a NULL res and will then return a viable ERR_PTR() if we get one. The "return 0;" was previously a "goto qspi_resource_err;" where then ret was returned, but since ret was still initialized to 0 at this place this was a valid conversion in 63c5395bb7a9 ("spi: bcm-qspi: Fix use-after-free on unbind"). The issue was not introduced by this commit, only made more obvious.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/217b6ea8cf7b819477bca597a6ae2d43d38ba283
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/22ae32d80ef590d12a2364e4621f90f7c58445c7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/32b9c8f7892c19f7f5c9fed5fb410b9fd5990bb6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/398e6a015877d44327f754aeb48ff3354945c78c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7c1f23ad34fcdace50275a6aa1e1969b41c6233f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a91c34357afcfaa5307e254f22a8452550a07b34
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d20db3c58a7f9361e370a7850ceb60dbdf62eea3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d3dcdb43c872a3b967345144151a2c9bb9124c9b
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\nspi: bcm-qspi: return error if neither hif_mspi nor mspi is available\n\nIf neither a \"hif_mspi\" nor \"mspi\" resource is present, the driver will\njust early exit in probe but still return success. Apart from not doing\nanything meaningful, this would then also lead to a null pointer access\non removal, as platform_get_drvdata() would return NULL, which it would\nthen try to dereference when trying to unregister the spi master.\n\nFix this by unconditionally calling devm_ioremap_resource(), as it can\nhandle a NULL res and will then return a viable ERR_PTR() if we get one.\n\nThe \"return 0;\" was previously a \"goto qspi_resource_err;\" where then\nret was returned, but since ret was still initialized to 0 at this place\nthis was a valid conversion in 63c5395bb7a9 (\"spi: bcm-qspi: Fix\nuse-after-free on unbind\"). The issue was not introduced by this commit,\nonly made more obvious."
    }
  ],
  "id": "CVE-2023-53658",
  "lastModified": "2025-10-08T19:38:09.863",
  "metrics": {},
  "published": "2025-10-07T16:15:49.443",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/217b6ea8cf7b819477bca597a6ae2d43d38ba283"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/22ae32d80ef590d12a2364e4621f90f7c58445c7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/32b9c8f7892c19f7f5c9fed5fb410b9fd5990bb6"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/398e6a015877d44327f754aeb48ff3354945c78c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7c1f23ad34fcdace50275a6aa1e1969b41c6233f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a91c34357afcfaa5307e254f22a8452550a07b34"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d20db3c58a7f9361e370a7850ceb60dbdf62eea3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d3dcdb43c872a3b967345144151a2c9bb9124c9b"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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