CVE-2026-89608

Last refreshed2026-10-19

Status: UPDATED | Advisory ID: CVE-2026-89608

Key Details

CVE	CVE-2026-89608
CVSS Score / Version	7.1 (High) / CVSS v3.1
Updated	2026-10-19
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is none; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

In the Linux kernel, the following vulnerability has been resolved:

ecryptfs: pass packet set buffer size to parser

ecryptfs_parse_packet_set() receives a pointer into the file header, but

it calculates the remaining packet buffer size from PAGE_SIZE - 8. For

version 1 headers the packet set starts later in the header, so this can

overstate the available buffer.

Pass the actual packet set buffer length from the caller and calculate

per-packet limits from the remaining bytes in that buffer. Recompute the

remaining length after consuming a tag 3 packet before parsing the

following tag 11 packet. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-89608
CVE	https://www.cve.org/CVERecord?id=CVE-2026-89608

Source

Reference

NVD

CVE