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eventfs: Initialize ei->children and ei->list in init_ei()

Type: advisorySources: OSV

In the Linux kernel, the following vulnerability has been resolved: eventfs: Initialize ei->children and ei->list in init_ei() eventfs_create_dir() allocates the eventfs_inode and initializes it with init_ei(). But this does not initialize the eventfs_inode list_heads. If the eventfs_create_dir() fails due to memory pressure, it will call free_ei() before it initialized the lists, and that checks to make sure the eventfs_inode has no children. But because the list wasn't initialized, it will give a false warning. Fix it by moving the list initialization into init_ei(). [ Rewrote change log ]

Products
Kernel
Affected versions
Not specified
Fixed versions
6.12.109, 6.18.50, 6.6.157, 7.2.4
CVEs
CVE-2026-89618
Confirmed fixed CVEs
Not specified
Updated in this feed
5 Nov 2026, 04:01 UTC · Revision 1

Source evidence

eventfs: Initialize ei->children and ei->list in init_ei()

core-osv · Original source

Published 11 Sept 2026, 19:45 UTC

In the Linux kernel, the following vulnerability has been resolved: eventfs: Initialize ei->children and ei->list in init_ei() eventfs_create_dir() allocates the eventfs_inode and initializes it with init_ei(). But this does not initialize the eventfs_inode list_heads. If the eventfs_create_dir() fails due to memory pressure, it will call free_ei() before it initialized the lists, and that checks to make sure the eventfs_inode has no children. But because the list wasn't initialized, it will give a false warning. Fix it by moving the list initialization into init_ei(). [ Rewrote change log ]

osv:CVE-2026-89618

Kernel

Fixed versions: 6.6.157, 6.12.109, 6.18.50, 7.2.4

Complete source record
{
  "id": "0e28315cda76806798554a14d27af8e17d45df31347c18e1f9d8576b9a7aa668",
  "url": "https://osv.dev/vulnerability/CVE-2026-89618",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "eventfs: Initialize ei->children and ei->list in init_ei()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: eventfs: Initialize ei->children and ei->list in init_ei() eventfs_create_dir() allocates the eventfs_inode and initializes it with init_ei(). But this does not initialize the eventfs_inode list_heads. If the eventfs_create_dir() fails due to memory pressure, it will call free_ei() before it initialized the lists, and that checks to make sure the eventfs_inode has no children. But because the list wasn't initialized, it will give a false warning. Fix it by moving the list initialization into init_ei(). [ Rewrote change log ]",
    "evidence": "osv:CVE-2026-89618",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
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        "prerequisites": [],
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            "evidence": "/affected/1/ranges"
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            "evidence": "/affected/1/ranges"
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          {
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            "evidence": "/affected/1/ranges"
          },
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            "evidence": "/affected/1/ranges"
          }
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        "affected_versions": []
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    "severity": "unknown",
    "structured": {
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      "aliases": [
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          }
        },
        {
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            {
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            "name": "Kernel",
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          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89618.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:42.095134863Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/069729282fbecfaa8a54062266c338ed23f08005",
        "https://git.kernel.org/stable/c/1704aaaf5d22bc765c168402350d191e24e245bc",
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        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89618.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-89618",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
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      "provider_metadata": {
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        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89618.json"
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    "security_relevant": true,
    "severity_evidence": null
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  "source_id": "core-osv",
  "document_id": 510059,
  "published_at": "2026-09-11T19:45:17.397+00:00"
}