CVE-2023-45898

HIGH

Linux kernel <6.5.4 - Use After Free

Title source: llm

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.

Core 5

Core References

Release Notes

Patch

Mailing List, Patch

Third Party Advisory

Mailing List, Patch, Third Party Advisory

CVSS v3 7.8

EPSS 0.0002

EPSS Percentile 3.6%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

CWE

CWE-416

Status published

Products (1)

linux/linux_kernel 6.5 - 6.5.4

Published Oct 16, 2023

Tracked Since Feb 18, 2026