CVE-2026-89618

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-89618", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.736Z", "datePublished": "2026-09-11T19:45:17.397Z", "dateUpdated": "2026-10-19T08:49:50.770Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T08:49:50.770Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\neventfs: Initialize ei->children and ei->list 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't\ninitialized, it will give a false warning.\n\nFix it by moving the list initialization into init_ei().\n\n[ Rewrote change log ]"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/tracefs/event_inode.c"], "versions": [{"version": "35ee34c0f6d578c9d245438ca29bf2e7024a5a65", "lessThan": "069729282fbecfaa8a54062266c338ed23f08005", "status": "affected", "versionType": "git"}, {"version": "5790b1fb3d672d9a1fe3881a7181dfdbe741568f", "lessThan": "c480f8af173d5b19c6d9c4311df6bbe352face9e", "status": "affected", "versionType": "git"}, {"version": "5790b1fb3d672d9a1fe3881a7181dfdbe741568f", "lessThan": "5333e18e6b425fcc39c7fea89e3949a2a98bc5e4", "status": "affected", "versionType": "git"}, {"version": "5790b1fb3d672d9a1fe3881a7181dfdbe741568f", "lessThan": "76e0f85f650738d768449dbccbc7c55d05f5b609", "status": "affected", "versionType": "git"}, {"version": "5790b1fb3d672d9a1fe3881a7181dfdbe741568f", "lessThan": "1704aaaf5d22bc765c168402350d191e24e245bc", "status": "affected", "versionType": "git"}, {"version": "6.6.18", "lessThan": "6.6.157", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/tracefs/event_inode.c"], "versions": [{"version": "6.7", "status": "affected"}, {"version": "0", "lessThan": "6.7", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.157", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.109", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.50", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.4", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.18", "versionEndExcluding": "6.6.157"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "6.12.109"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "6.18.50"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "7.2.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/069729282fbecfaa8a54062266c338ed23f08005"}, {"url": "https://git.kernel.org/stable/c/c480f8af173d5b19c6d9c4311df6bbe352face9e"}, {"url": "https://git.kernel.org/stable/c/5333e18e6b425fcc39c7fea89e3949a2a98bc5e4"}, {"url": "https://git.kernel.org/stable/c/76e0f85f650738d768449dbccbc7c55d05f5b609"}, {"url": "https://git.kernel.org/stable/c/1704aaaf5d22bc765c168402350d191e24e245bc"}], "title": "eventfs: Initialize ei->children and ei->list in init_ei()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/tracefs/event_inode.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "069729282fbecfaa8a54062266c338ed23f08005", "status": "affected", "version": "35ee34c0f6d578c9d245438ca29bf2e7024a5a65", "versionType": "git"}, {"lessThan": "c480f8af173d5b19c6d9c4311df6bbe352face9e", "status": "affected", "version": "5790b1fb3d672d9a1fe3881a7181dfdbe741568f", "versionType": "git"}, {"lessThan": "5333e18e6b425fcc39c7fea89e3949a2a98bc5e4", "status": "affected", "version": "5790b1fb3d672d9a1fe3881a7181dfdbe741568f", "versionType": "git"}, {"lessThan": "76e0f85f650738d768449dbccbc7c55d05f5b609", "status": "affected", "version": "5790b1fb3d672d9a1fe3881a7181dfdbe741568f", "versionType": "git"}, {"lessThan": "1704aaaf5d22bc765c168402350d191e24e245bc", "status": "affected", "version": "5790b1fb3d672d9a1fe3881a7181dfdbe741568f", "versionType": "git"}, {"lessThan": "6.6.157", "status": "affected", "version": "6.6.18", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/tracefs/event_inode.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.7"}, {"lessThan": "6.7", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.157", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.109", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.50", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\neventfs: Initialize ei->children and ei->list 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't\ninitialized, it will give a false warning.\n\nFix it by moving the list initialization into init_ei().\n\n[ Rewrote change log ]"}], "id": "CVE-2026-89618", "lastModified": "2026-10-19T09:17:58.553", "metrics": {}, "published": "2026-09-11T20:19:47.040", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/069729282fbecfaa8a54062266c338ed23f08005"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1704aaaf5d22bc765c168402350d191e24e245bc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5333e18e6b425fcc39c7fea89e3949a2a98bc5e4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/76e0f85f650738d768449dbccbc7c55d05f5b609"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c480f8af173d5b19c6d9c4311df6bbe352face9e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel: eventfs false warning due to uninitialized data", "id": "2532303", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2532303"}, "csaw": false, "cvss3": {"cvss3_base_score": "0.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:N", "status": "draft"}, "cwe": "CWE-824", "details": ["A flaw was found in the Linux kernel's eventfs component. When the `eventfs_create_dir()` function fails due to memory pressure, an uninitialized internal data structure can cause the system to issue a misleading warning during the cleanup process. This incorrect error reporting could lead to confusion in system diagnostics."], "name": "CVE-2026-89618", "public_date": "2026-09-11T19:45:17Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-89618\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-89618\nhttps://git.kernel.org/stable/c/1704aaaf5d22bc765c168402350d191e24e245bc\nhttps://git.kernel.org/stable/c/5333e18e6b425fcc39c7fea89e3949a2a98bc5e4\nhttps://git.kernel.org/stable/c/76e0f85f650738d768449dbccbc7c55d05f5b609\nhttps://git.kernel.org/stable/c/c480f8af173d5b19c6d9c4311df6bbe352face9e"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5790b1fb3d672d9a1fe3881a7181dfdbe741568f,c480f8af173d5b19c6d9c4311df6bbe352face9e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5790b1fb3d672d9a1fe3881a7181dfdbe741568f,5333e18e6b425fcc39c7fea89e3949a2a98bc5e4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5790b1fb3d672d9a1fe3881a7181dfdbe741568f,76e0f85f650738d768449dbccbc7c55d05f5b609)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5790b1fb3d672d9a1fe3881a7181dfdbe741568f,1704aaaf5d22bc765c168402350d191e24e245bc)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "35ee34c0f6d578c9d245438ca29bf2e7024a5a65"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.6.18,6.7)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "6.7"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.7)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.109,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.50,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.4,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.3-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-12T07:00:14.274191+00:00", "updated": "2026-09-21T01:30:08.747991+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}