What is CVE-2026-52987?

CVE-2026-52987 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, affecting Linux kernel versions from 6.19 onward and patched in 7.0.10 and 7.1. CVE-2026-52987 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-52987?

CVE-2026-52987 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2026-52987?

Yes, CVE-2026-52987 has been patched. Fixed versions include 7.0.10 and 7.1. If you are running Linux kernel 6.19 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-52987 actively exploited?

CVE-2026-52987 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-52987

High

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: avoid double drm_exec_fini() in userq validate When new_addition is true, amdgpu_userq_vm_validate() calls drm_exec_fini(&exec) before iterating over the collected HMM ranges and calling amdgpu_ttm_tt_get_user_pages(). If amdgpu_ttm_tt_get_user_pages() fails in that path, the code jumps to unlock_all and calls drm_exec_fini(&exec) a second time on the same exec object. drm_exec_fini() is not idempotent: it frees exec->objects and may also drop exec->contended and finalize the ww acquire context. Route that error path directly to the range cleanup once exec has already been finalized. Issue found using a prototype static analysis tool and confirmed by code review. (cherry picked from commit 2802952e4a07306da6ebe813ff1acacc5691851a)

Package Linux Kernel

Published 2026-06-24

Last modified 2026-08-03

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-1341

CVE-2026-52987 is classified as CWE-1341

See CWE-1341 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 6.19 and later are affected. Fixed in 7.0.10, 7.1 and their respective stable series.

Affected from

≥ 6.19

Fixed in

✓ 7.0.10 7.0.x ✓ 7.1

References

5 total

Kernel Git
https://git.kernel.org/stable/c/508babf310365f1107a2e8831c267c292a286818

Patch
Kernel Git
https://git.kernel.org/stable/c/c7c3ae7c01e5a0742b93cb9b40800bdd7f811e38

Patch
Red Hat
https://access.redhat.com/security/cve/CVE-2026-52987

Third Party Advisory
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=2492365

Issue Tracking Third Party Advisory
Red Hat
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52987.json

Third Party Advisory

Details

CVE ID CVE-2026-52987

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2026-06-24

Modified 2026-08-03

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-52987?

CVE-2026-52987 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . It affects Linux kernel versions from 6.19 onward and has been patched in 7.0.10 and 7.1. CVE-2026-52987 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-52987?

CVE-2026-52987 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2026-52987?

Yes. CVE-2026-52987 has been patched. Fixed versions include 7.0.10 and 7.1. If you are running Linux kernel 6.19 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-52987 actively exploited?

No. CVE-2026-52987 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.