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CVE-2026-23195

7.0 · HIGH

In the Linux kernel, the following vulnerability has been resolved: cgroup/dmem: avoid pool UAF An UAF issue was observed: BUG: KASAN: slab-use-after-free in page_counter_uncharge+0x65/0x150 Wri…

Published Feb 14, 2026CWE-416EPSS 0.13%

Overview

CVE-2026-23195 is a high-severity vulnerability. It was published on February 14, 2026 and has a CVSS 3.1 base score of 7.0 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.0, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

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

cgroup/dmem: avoid pool UAF

An UAF issue was observed:

BUG: KASAN: slab-use-after-free in page_counter_uncharge+0x65/0x150

Write of size 8 at addr ffff888106715440 by task insmod/527

CPU: 4 UID: 0 PID: 527 Comm: insmod 6.19.0-rc7-next-20260129+ #11

Tainted: [O]=OOT_MODULE

Call Trace:

<TASK>

dump_stack_lvl+0x82/0xd0

kasan_report+0xca/0x100

kasan_check_range+0x39/0x1c0

page_counter_uncharge+0x65/0x150

dmem_cgroup_uncharge+0x1f/0x260

Allocated by task 527:

Freed by task 0:

The buggy address belongs to the object at ffff888106715400

which belongs to the cache kmalloc-512 of size 512

The buggy address is located 64 bytes inside of

freed 512-byte region [ffff888106715400, ffff888106715600)

The buggy address belongs to the physical page:

Memory state around the buggy address:

ffff888106715300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc

ffff888106715380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc

>ffff888

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/99a2ef500906138ba58093b9893972a5c303c734Refgit.kernel.org/stable/c/d3081353acaa6a638dcf75726066ea556a2de8d5

How CyberStrike helps

Frequently asked questions

What is CVE-2026-23195?

CVE-2026-23195 is a high-severity vulnerability. It was published on February 14, 2026 and has a CVSS 3.1 base score of 7.0 (HIGH).

How severe is CVE-2026-23195?

This vulnerability has a CVSS 3.1 base score of 7.0, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-23195?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-23195?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-23195 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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