CVE-2026-53054

drm/msm: Fix VM_BIND UNMAP locking

Published Jun 24, 2026 CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Description
In the Linux kernel, the following vulnerability has been resolved:

drm/msm: Fix VM_BIND UNMAP locking

Wrong argument meant that the objs involved in UNMAP ops were not always
getting locked.

Since _NO_SHARE objs share a common resv with the VM (which is always
locked) this would only show up with non-_NO_SHARE BOs.

Patchwork: https://patchwork.freedesktop.org/patch/713898/

Analysis

AI-generated

Technical impact

Wrong argument handling in the Linux DRM/msm driver caused non-_NO_SHARE buffer objects to be unbound from the virtual memory map without acquiring the necessary lock. This race condition can allow concurrent access to shared resources, potentially corrupting kernel memory or causing a crash. The vulnerability occurs during UNMAP operations and threatens the integrity of the kernel’s graphics memory management.

Affected Systems

All Linux kernel releases lacking the vm_bind unmap locking fix are affected; the flaw is limited to the DRM/msm driver stack, so any distribution shipping a kernel version without the patch is vulnerable.

Risk and Exploitability

The issue is a race condition that requires privileged kernel context and concurrent unbinding of buffer objects. The CVSS score of 7.8 indicates high severity, and the EPSS score < 1% indicates that exploit probability is low. It is not listed in CISA KEV. Remote exploitation is unlikely, but a local privileged actor or compromised process could induce data corruption or cause a denial-of-service within the kernel. The race condition relates to CWE-413 and CWE-667.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade to a Linux kernel that contains the drm/msm vm_bind unmap locking fix.
  • If an immediate kernel upgrade is not possible, temporarily disable GPU acceleration or restrict usage of the drm/msm driver until the patch is applied.
  • For systems unable to upgrade or disable GPU workloads, continuously monitor the kernel logs for signs of GPU buffer corruption or crashes and apply the specific commit manually from the vendor’s git tree and rebuild the kernel.

Generated by OpenCVE AI on August 12, 2026 at 06:58 UTC.

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Ubuntu USN Ubuntu USN USN-8566-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-8568-1 Linux kernel (OEM) vulnerabilities
Ubuntu USN Ubuntu USN USN-8569-1 Linux kernel (HWE) vulnerabilities
Ubuntu USN Ubuntu USN USN-8593-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-8603-1 Linux kernel (Azure) vulnerabilities
Ubuntu USN Ubuntu USN USN-8618-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-8663-1 Linux kernel (NVIDIA) vulnerabilities
Ubuntu USN Ubuntu USN USN-8664-1 Linux kernel (NVIDIA BaseOS) vulnerabilities
Ubuntu USN Ubuntu USN USN-8728-1 Linux kernel (GCP) vulnerabilities
Ubuntu USN Ubuntu USN USN-8728-2 Linux kernel (Azure) vulnerabilities
Ubuntu USN Ubuntu USN USN-8728-3 Linux kernel (Oracle) vulnerabilities
History
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
Weaknesses CWE-413
References
Metrics threat_severity

None

cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Moderate

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: drm/msm: Fix VM_BIND UNMAP locking Wrong argument meant that the objs involved in UNMAP ops were not always getting locked. Since _NO_SHARE objs share a common resv with the VM (which is always locked) this would only show up with non-_NO_SHARE BOs. Patchwork: https://patchwork.freedesktop.org/patch/713898/
Title drm/msm: Fix VM_BIND UNMAP locking
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Linux
Published
Updated
Aug 5, 2026, 12:32 PM
Reserved
Jun 9, 2026, 7:44 AM
Status
Analyzed
Published
Jun 24, 2026, 5:17 PM
Modified
Jul 21, 2026, 5:24 PM
Severity
Moderate
Public date
Jun 24, 2026, 12:00 AM