ghsa-5w8m-6wwq-mm8m
Vulnerability from github
Published
2024-10-21 15:32
Modified
2024-10-23 18:33
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details

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

scsi: elx: libefc: Fix potential use after free in efc_nport_vport_del()

The kref_put() function will call nport->release if the refcount drops to zero. The nport->release release function is _efc_nport_free() which frees "nport". But then we dereference "nport" on the next line which is a use after free. Re-order these lines to avoid the use after free.

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{
   affected: [],
   aliases: [
      "CVE-2024-49852",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-416",
      ],
      github_reviewed: false,
      github_reviewed_at: null,
      nvd_published_at: "2024-10-21T13:15:05Z",
      severity: "HIGH",
   },
   details: "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: elx: libefc: Fix potential use after free in efc_nport_vport_del()\n\nThe kref_put() function will call nport->release if the refcount drops to\nzero.  The nport->release release function is _efc_nport_free() which frees\n\"nport\".  But then we dereference \"nport\" on the next line which is a use\nafter free.  Re-order these lines to avoid the use after free.",
   id: "GHSA-5w8m-6wwq-mm8m",
   modified: "2024-10-23T18:33:07Z",
   published: "2024-10-21T15:32:27Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2024-49852",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/16a570f07d870a285b0c0b0d1ca4dff79e8aa5ff",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/2e4b02fad094976763af08fec2c620f4f8edd9ae",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/7c2908985e4ae0ea1b526b3916de9e5351650908",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/98752fcd076a8cbc978016eae7125b4971be1eec",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/abc71e89170ed32ecf0a5a29f31aa711e143e941",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/baeb8628ab7f4577740f00e439d3fdf7c876b0ff",
      },
   ],
   schema_version: "1.4.0",
   severity: [
      {
         score: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
         type: "CVSS_V3",
      },
   ],
}


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