ghsa-3cjq-w2m7-3294
Vulnerability from github
Published
2025-07-09 12:31
Modified
2025-07-10 15:31
Details

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

btrfs: fix invalid inode pointer dereferences during log replay

In a few places where we call read_one_inode(), if we get a NULL pointer we end up jumping into an error path, or fallthrough in case of __add_inode_ref(), where we then do something like this:

iput(&inode->vfs_inode);

which results in an invalid inode pointer that triggers an invalid memory access, resulting in a crash.

Fix this by making sure we don't do such dereferences.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-38243"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-09T11:15:26Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix invalid inode pointer dereferences during log replay\n\nIn a few places where we call read_one_inode(), if we get a NULL pointer\nwe end up jumping into an error path, or fallthrough in case of\n__add_inode_ref(), where we then do something like this:\n\n   iput(\u0026inode-\u003evfs_inode);\n\nwhich results in an invalid inode pointer that triggers an invalid memory\naccess, resulting in a crash.\n\nFix this by making sure we don\u0027t do such dereferences.",
  "id": "GHSA-3cjq-w2m7-3294",
  "modified": "2025-07-10T15:31:21Z",
  "published": "2025-07-09T12:31:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38243"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2dcf838cf5c2f0f4501edaa1680fcad03618d760"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/401d098f92ea69d8a75f8b845daf343e511681ba"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ba8386d662cc51cc5382688bbf7a152b0b0b27cf"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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