ghsa-2cj3-6xfh-2wmc
Vulnerability from github
Published
2024-07-12 15:31
Modified
2024-09-09 18:30
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:

ssb: Fix potential NULL pointer dereference in ssb_device_uevent()

The ssb_device_uevent() function first attempts to convert the 'dev' pointer to 'struct ssb_device *'. However, it mistakenly dereferences 'dev' before performing the NULL check, potentially leading to a NULL pointer dereference if 'dev' is NULL.

To fix this issue, move the NULL check before dereferencing the 'dev' pointer, ensuring that the pointer is valid before attempting to use it.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Show details on source website

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{
   affected: [],
   aliases: [
      "CVE-2024-40982",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-476",
      ],
      github_reviewed: false,
      github_reviewed_at: null,
      nvd_published_at: "2024-07-12T13:15:19Z",
      severity: "MODERATE",
   },
   details: "In the Linux kernel, the following vulnerability has been resolved:\n\nssb: Fix potential NULL pointer dereference in ssb_device_uevent()\n\nThe ssb_device_uevent() function first attempts to convert the 'dev' pointer\nto 'struct ssb_device *'. However, it mistakenly dereferences 'dev' before\nperforming the NULL check, potentially leading to a NULL pointer\ndereference if 'dev' is NULL.\n\nTo fix this issue, move the NULL check before dereferencing the 'dev' pointer,\nensuring that the pointer is valid before attempting to use it.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.",
   id: "GHSA-2cj3-6xfh-2wmc",
   modified: "2024-09-09T18:30:29Z",
   published: "2024-07-12T15:31:29Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2024-40982",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/789c17185fb0f39560496c2beab9b57ce1d0cbe7",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/7d43c8377c6fc846b1812f8df360425c9323dc56",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/c5dc2d8eb3981bae261ea7d1060a80868e886813",
      },
   ],
   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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