ghsa-x8fr-74rg-389v
Vulnerability from github
Published
2025-03-07 21:31
Modified
2025-03-07 21:31
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

In the Linux kernel, the following vulnerability has been resolved:

ata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo()

In an unlikely (and probably wrong?) case that the 'ppi' parameter of ata_host_alloc_pinfo() points to an array starting with a NULL pointer, there's going to be a kernel oops as the 'pi' local variable won't get reassigned from the initial value of NULL. Initialize 'pi' instead to '&ata_dummy_port_info' to fix the possible kernel oops for good...

Found by Linux Verification Center (linuxtesting.org) with the SVACE static analysis tool.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49731"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:48Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo()\n\nIn an unlikely (and probably wrong?) case that the \u0027ppi\u0027 parameter of\nata_host_alloc_pinfo() points to an array starting with a NULL pointer,\nthere\u0027s going to be a kernel oops as the \u0027pi\u0027 local variable won\u0027t get\nreassigned from the initial value of NULL. Initialize \u0027pi\u0027 instead to\n\u0027\u0026ata_dummy_port_info\u0027 to fix the possible kernel oops for good...\n\nFound by Linux Verification Center (linuxtesting.org) with the SVACE static\nanalysis tool.",
  "id": "GHSA-x8fr-74rg-389v",
  "modified": "2025-03-07T21:31:04Z",
  "published": "2025-03-07T21:31:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49731"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/07cbdb4807d369fbda73062a91b570c4dc5ec429"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1ac5efee33f29e704226506d429b84575a5d66f8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/253334f84c81bc6a43af489f108c0bddad989eef"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/36cd19e7d4e5571d77a2ed20c5b6ef50cf57734a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a810bd5af06977a847d1f202b22d7defd5c62497"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bf476fe22aa1851bab4728e0c49025a6a0bea307"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ca4693e6e06e4fd2b240c0fec47aa2498c94848e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ff128fbea720bf763fa345680dda5f050bc24a47"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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