ghsa-7h48-rq2g-79x4
Vulnerability from github
Published
2025-10-07 18:31
Modified
2025-10-07 18:31
Details

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

bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent

In some specific situations, the return value of __bch_btree_node_alloc may be NULL. This may lead to a potential NULL pointer dereference in caller function like a calling chain : btree_split->bch_btree_node_alloc->__bch_btree_node_alloc.

Fix it by initializing the return value in __bch_btree_node_alloc.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-53681"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-07T16:15:52Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbcache: Fix __bch_btree_node_alloc to make the failure behavior consistent\n\nIn some specific situations, the return value of __bch_btree_node_alloc\nmay be NULL. This may lead to a potential NULL pointer dereference in\ncaller function like a calling chain :\nbtree_split-\u003ebch_btree_node_alloc-\u003e__bch_btree_node_alloc.\n\nFix it by initializing the return value in __bch_btree_node_alloc.",
  "id": "GHSA-7h48-rq2g-79x4",
  "modified": "2025-10-07T18:31:10Z",
  "published": "2025-10-07T18:31:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53681"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4514847aee18d9391a0cf3aad75d3567c72795a4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/587b4e8bb5dac682f09280ab35db4632b29d5ac4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7ecea5ce3dc17339c280c75b58ac93d8c8620d9f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/80fca8a10b604afad6c14213fdfd816c4eda3ee4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a4405f6ee03323410d7b10966fd67b35f71b1944"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b070f29a61436f6f8a2e3abc7ea4f4be81695198"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f67b0e3081f2a24170280a33ac66f6b112083c03"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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