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CVE-2026-64305

Last refreshed2026-10-23

Status: UPDATED  |  Advisory ID: CVE-2026-64305

Key Details

CVECVE-2026-64305
CVSS Score / Version
7.8 (High) / CVSS v3.1
Updated2026-10-21
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
Classified as
CWE-416 (Use After Free)

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:

crypto: qat - protect service table iterations with service_lock

The service_table list is protected by service_lock when entries are

added or removed (in adf_service_add() and adf_service_remove()), but

several functions iterate over the list without holding this lock.

A concurrent adf_service_register() or adf_service_unregister() call

could modify the list during traversal, leading to list corruption or

a use-after-free.

Fix this by holding service_lock across all list_for_each_entry()

iterations of service_table in adf_dev_init(), adf_dev_start(),

adf_dev_stop(), adf_dev_shutdown(), adf_dev_restarting_notify(),

adf_dev_restarted_notify(), and adf_error_notifier().

The lock ordering is safe: callers of the static helpers (adf_dev_up()

and adf_dev_down()) acquire state_lock before service_lock, and no

event_hld callback or service_lock holder ever acquires state_lock in

the reverse order. (NVD)

What to Do

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

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-64305
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-64305
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