What is CVE-2026-53226?

CVE-2026-53226 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Memory Leak flaw (CWE-401), affecting Linux kernel versions from 5.15 onward and patched in 6.12.96, 6.18.36, 7.0.13 and others. CVE-2026-53226 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-53226?

CVE-2026-53226 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2026-53226?

Yes, CVE-2026-53226 has been patched. Fixed versions include 6.12.96, 6.18.36, 7.0.13 and others. If you are running Linux kernel 5.15 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-53226 actively exploited?

CVE-2026-53226 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Memory Leak (CWE-401)?

The product does not release memory after use, causing gradual resource exhaustion. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/401.html

CVE-2026-53226

Medium

In the Linux kernel, the following vulnerability has been resolved: gpio: rockchip: fix generic IRQ chip leak on remove The driver allocates domain generic chips using irq_alloc_domain_generic_chips() during probe. However, on driver remove/teardown, the generic chips are not automatically freed when the IRQ domain is removed because the domain flags do not include IRQ_DOMAIN_FLAG_DESTROY_GC. This causes both the domain generic chips structure and the associated generic chips to be leaked. Additionally, the generic chips remain on the global gc_list and may later be visited by generic IRQ chip suspend, resume, or shutdown callbacks after the GPIO bank has been removed, potentially resulting in a use-after-free and kernel crash. Fix the resource leak by explicitly calling irq_domain_remove_generic_chips() before removing the IRQ domain in rockchip_gpio_remove().

Package Linux Kernel

Published 2026-06-25

Last modified 2026-07-18

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-401

CVE-2026-53226 is a Memory Leak vulnerability

What is Memory Leak?

The product does not release memory after use, causing gradual resource exhaustion. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.15 and later are affected. Fixed in 6.12.96, 6.18.36, 7.0.13, 7.1 and their respective stable series.

Affected from

≥ 5.15

Fixed in

✓ 6.12.96 6.12.x ✓ 6.18.36 6.18.x ✓ 7.0.13 7.0.x ✓ 7.1

References

4 total

Kernel Git
https://git.kernel.org/stable/c/1c1e0fc88d6ef65bf15d517853251f75ab9d18c3

Patch
Kernel Git
https://git.kernel.org/stable/c/1f34ea5f6114011092d9a5c8b901ad6741144a1d

Patch
Kernel Git
https://git.kernel.org/stable/c/bace7b99bfa555fe833aee8827b8004c43666d02

Patch
Kernel Git
https://git.kernel.org/stable/c/50c7a6d2bf179588ba2daee97be93d19c96a94af

Details

CVE ID CVE-2026-53226

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-06-25

Modified 2026-07-18

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-53226?

CVE-2026-53226 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a Memory Leak flaw (CWE-401) . It affects Linux kernel versions from 5.15 onward and has been patched in 6.12.96, 6.18.36, 7.0.13 and others. CVE-2026-53226 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-53226?

CVE-2026-53226 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2026-53226?

Yes. CVE-2026-53226 has been patched. Fixed versions include 6.12.96, 6.18.36, 7.0.13 and others. If you are running Linux kernel 5.15 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-53226 actively exploited?

No. CVE-2026-53226 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.