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CVE-2026-89609

Last refreshed2026-10-19

Status: UPDATED  |  Advisory ID: CVE-2026-89609

Key Details

CVECVE-2026-89609
CVSS Score / Version
7.8 (High) / CVSS v3.1
Updated2026-10-19
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 high; availability impact is high.
Affected products
Linux Kernel

Affected Products, Subsystems & Sectors

VendorProductAffected VersionsPatch Status
LinuxLinux Kernel
SubsystemsOT Supporting Infrastructure
SectorsAll Sectors

What to Know

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

ecryptfs: hold msg ctx list lock when cleaning daemon queue

ecryptfs_exorcise_daemon() drops queued messages from a dying daemon

without holding ecryptfs_msg_ctx_lists_mux, but

ecryptfs_msg_ctx_alloc_to_free() requires that lock.

Take the list lock while moving the queued contexts back to the free

list to avoid racing with other global msg ctx list users. (NVD)

What to Do

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

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-89609
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-89609

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