What is CVE-2026-53293?

CVE-2026-53293 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Improper Locking flaw (CWE-667), affecting Linux kernel versions from 6.6.55 onward and patched in 6.6.141, 6.12.91, 6.18.33 and others. CVE-2026-53293 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-53293?

CVE-2026-53293 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-2026-53293?

Yes, CVE-2026-53293 has been patched. Fixed versions include 6.6.141, 6.12.91, 6.18.33 and others. If you are running Linux kernel 6.6.55 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-53293 actively exploited?

CVE-2026-53293 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Improper Locking (CWE-667)?

The product does not properly acquire or release a lock, which can lead to unexpected behaviour. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/667.html

CVE-2026-53293

Medium

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix AMDGPU_INFO_READ_MMR_REG There were multiple issues in that code. First of all the order between the reset semaphore and the mm_lock was wrong (e.g. copy_to_user) was called while holding the lock. Then we allocated memory while holding the reset semaphore which is also a pretty big bug and can deadlock. Then we used down_read_trylock() instead of waiting for the reset to finish. (cherry picked from commit 361b6e6b303d4b691f6c5974d3eaab67ca6dd90e)

Package Linux Kernel

Published 2026-06-26

Last modified 2026-07-08

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-667

CVE-2026-53293 is a Improper Locking vulnerability

What is Improper Locking?

The product does not properly acquire or release a lock, which can lead to unexpected behaviour. Learn more on MITRE CWE

Affected versions

Linux kernel versions 6.6.55, 6.10.14, 6.11.3, 6.12 and later are affected. Fixed in 6.6.141, 6.12.91, 6.18.33, 7.0.10, 7.1 and their respective stable series.

Affected from

≥ 6.6.55 ≥ 6.10.14 ≥ 6.11.3 ≥ 6.12

Fixed in

✓ 6.6.141 6.6.x ✓ 6.12.91 6.12.x ✓ 6.18.33 6.18.x ✓ 7.0.10 7.0.x ✓ 7.1

References

5 total

Kernel Git
https://git.kernel.org/stable/c/0ef196a208385b7d7da79f411c161b04e97283e2

Patch
Kernel Git
https://git.kernel.org/stable/c/5c29d20470d4566d1b68df57097d642d01f8b427

Patch
Kernel Git
https://git.kernel.org/stable/c/61957c2e467b39b528a290016367d32a433fa846

Patch
Kernel Git
https://git.kernel.org/stable/c/8c4254c8f5836e77ae83e7fc037f02b69f7a0977

Patch
Kernel Git
https://git.kernel.org/stable/c/a31c3feb54b15a90232e497ad0e27e8a82052d8d

Patch

Details

CVE ID CVE-2026-53293

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-06-26

Modified 2026-07-08

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-53293?

CVE-2026-53293 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Improper Locking flaw (CWE-667) . It affects Linux kernel versions from 6.6.55 onward and has been patched in 6.6.141, 6.12.91, 6.18.33 and others. CVE-2026-53293 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-53293?

CVE-2026-53293 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-2026-53293?

Yes. CVE-2026-53293 has been patched. Fixed versions include 6.6.141, 6.12.91, 6.18.33 and others. If you are running Linux kernel 6.6.55 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-53293 actively exploited?

No. CVE-2026-53293 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.