ghsa-422g-php3-xrv4
Vulnerability from github
Published
2025-02-27 18:31
Modified
2025-02-27 18:31
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:

ubi: ubi_create_volume: Fix use-after-free when volume creation failed

There is an use-after-free problem for 'eba_tbl' in ubi_create_volume()'s error handling path:

ubi_eba_replace_table(vol, eba_tbl) vol->eba_tbl = tbl out_mapping: ubi_eba_destroy_table(eba_tbl) // Free 'eba_tbl' out_unlock: put_device(&vol->dev) vol_release kfree(tbl->entries) // UAF

Fix it by removing redundant 'eba_tbl' releasing. Fetch a reproducer in [Link].

Show details on source website

To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2022-49388"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:15Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nubi: ubi_create_volume: Fix use-after-free when volume creation failed\n\nThere is an use-after-free problem for \u0027eba_tbl\u0027 in ubi_create_volume()\u0027s\nerror handling path:\n\n  ubi_eba_replace_table(vol, eba_tbl)\n    vol-\u003eeba_tbl = tbl\nout_mapping:\n  ubi_eba_destroy_table(eba_tbl)   // Free \u0027eba_tbl\u0027\nout_unlock:\n  put_device(\u0026vol-\u003edev)\n    vol_release\n      kfree(tbl-\u003eentries)\t  // UAF\n\nFix it by removing redundant \u0027eba_tbl\u0027 releasing.\nFetch a reproducer in [Link].",
  "id": "GHSA-422g-php3-xrv4",
  "modified": "2025-02-27T18:31:08Z",
  "published": "2025-02-27T18:31:08Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49388"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1174ab8ba36a48025b68b5ff1085000b1e510217"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/25ff1e3a1351c0d936dd1ac2f9e58231ea1510c9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5ff2514e4fb55dcf3d88294686040ca73ea0c1a2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6d8d3f68cbecfd31925796f0fb668eb21ab06734"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8302620aeb940f386817321d272b12411ae7d39f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8c03a1c21d72210f81cb369cc528e3fde4b45411"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/abb67043060f2bf4c03d7c3debb9ae980e2b6db3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e27ecf325e51abd06aaefba57a6322a46fa4178b"
    }
  ],
  "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"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.