CVE-2023-45898: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Linux Linux Kernel: from 6.5, before 6.5.4 (fixed in 6.5.4)

Published 2023-10-16. Last modified 2026-06-17.