CVE-2026-89618 (GCVE-0-2026-89618)

Vulnerability from cvelistv5 – Published: 2026-09-11 19:45 – Updated: 2026-10-19 08:49
VLAI
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 ]
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7061 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 35ee34c0f6d578c9d245438ca29bf2e7024a5a65 , < 069729282fbecfaa8a54062266c338ed23f08005 (git)
Affected: 5790b1fb3d672d9a1fe3881a7181dfdbe741568f , < c480f8af173d5b19c6d9c4311df6bbe352face9e (git)
Affected: 5790b1fb3d672d9a1fe3881a7181dfdbe741568f , < 5333e18e6b425fcc39c7fea89e3949a2a98bc5e4 (git)
Affected: 5790b1fb3d672d9a1fe3881a7181dfdbe741568f , < 76e0f85f650738d768449dbccbc7c55d05f5b609 (git)
Affected: 5790b1fb3d672d9a1fe3881a7181dfdbe741568f , < 1704aaaf5d22bc765c168402350d191e24e245bc (git)
Affected: 6.6.18 , < 6.6.157 (semver)
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Linux Linux Affected: 6.7
Unaffected: 0 , < 6.7 (semver)
Unaffected: 6.6.157 , ≤ 6.6.* (semver)
Unaffected: 6.12.109 , ≤ 6.12.* (semver)
Unaffected: 6.18.50 , ≤ 6.18.* (semver)
Unaffected: 7.2.4 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
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{
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          "product": "Linux",
          "programFiles": [
            "fs/tracefs/event_inode.c"
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      "cpeApplicability": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\neventfs: Initialize ei-\u003echildren and ei-\u003elist in init_ei()\n\neventfs_create_dir() allocates the eventfs_inode and initializes it with\ninit_ei(). But this does not initialize the eventfs_inode list_heads. If\nthe eventfs_create_dir() fails due to memory pressure, it will call\nfree_ei() before it initialized the lists, and that checks to make sure\nthe eventfs_inode has no children. But because the list wasn\u0027t\ninitialized, it will give a false warning.\n\nFix it by moving the list initialization into init_ei().\n\n[ Rewrote change log ]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T08:49:50.770Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
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          "url": "https://git.kernel.org/stable/c/1704aaaf5d22bc765c168402350d191e24e245bc"
        }
      ],
      "title": "eventfs: Initialize ei-\u003echildren and ei-\u003elist in init_ei()",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-89618",
    "datePublished": "2026-09-11T19:45:17.397Z",
    "dateReserved": "2026-09-11T19:38:34.736Z",
    "dateUpdated": "2026-10-19T08:49:50.770Z",
    "state": "PUBLISHED"
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      "product_status:known_not_affected": "1",
      "source": "Microsoft CSAF VEX",
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      "title": "eventfs: Initialize ei-\u003echildren and ei-\u003elist in init_ei()",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-89618.json",
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          }
        ],
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        "lastModified": "2026-10-19T09:17:58.553",
        "metrics": {},
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      "title": "SUSE CVE CVE-2026-89618",
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}



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