The Linux kernel before 6.5.4 has an es1 use-after-free in fs/ext4/extents_status.c, related to ext4_es_insert_extent.
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Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2023-10-16. NVD baseline CVSS 7.8; sources differ by 0.0.
The Linux kernel before 6.5.4 has an es1 use-after-free in fs/ext4/extents_status.c, related to ext4_es_insert_extent.
October 16, 2023
June 17, 2026
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | linux-virtual-hwe-22.04-edge (6.5.0.14.16) @ mantic | 2026-05-22 | ubuntu |
| ubuntu | linux-tools-azure (6.5.0.1010.12) @ mantic | 2026-05-22 | ubuntu |
| ubuntu | linux-tools-gcp (6.5.0.1010.10) @ mantic | 2026-05-22 | ubuntu |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
The Linux kernel before 6.5.4 has an es1 use-after-free in fs/ext4/extents_status.c related to ext4_es_insert_extent.
Linux kernel vulnerabilities
Linux kernel (GCP) vulnerabilities
Linux kernel (Azure) vulnerabilities
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Explore the affected products and dependency analysis for CVE-2023-45898
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