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

drm/panthor: Fix potential invalid pointer deref in group_process_tiler_oom()

If heaps is an ERR_PTR(), panthor_heap_pool_put() will deref an invalid
pointer. Make sure we set it to NULL in that case.
Published: 2026-08-15
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

An invalid pointer dereference in the DRM Panthor driver can cause a kernel crash when the driver encounters an error pointer from the heaps subsystem during out‑of‑memory handling. The flaw triggers a panic that brings the entire system down, providing only a denial‑of‑service effect and compromising availability, not confidentiality or integrity. It is a classic null‑pointer dereference (CWE‑476).

Affected Systems

The vulnerability exists in any Linux kernel that includes the unpatched drm/panthor driver, regardless of distribution. All kernels that compile this driver from the mainline source repository are potentially affected until the patch is applied.

Risk and Exploitability

The CVSS score of 5.5 indicates moderate severity, and the EPSS <1% indicates a very low probability of exploitation in the wild. The flaw resides in kernel space; an attacker would need local access to the DRM subsystem or sufficient privileges to create DRM contexts that trigger the out‑of‑memory path. This attack vector is inferred, as the CVE description does not specify an externally exploitable entry. A successful attempt would result in a system halt rather than attacker foothold. The vulnerability is not listed in the CISA KEV catalog.

Generated by OpenCVE AI on August 18, 2026 at 14:51 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade the Linux kernel to a version that includes the patched Panthor driver.
  • If an immediate kernel upgrade is not available, blacklist the panthor module (e.g., add panthor to /etc/modprobe.d/blacklist.conf) to prevent it from loading at boot.
  • Restrict access to DRM device nodes (e.g., /dev/dri/*) by adjusting permissions or UDEV rules to limit usage to privileged users only.
  • Continuously monitor kernel logs (dmesg, journalctl) for PANIC or OOPS messages related to the DRM subsystem, and investigate any unexpected shutdowns promptly.

Generated by OpenCVE AI on August 18, 2026 at 14:51 UTC.

Tracking

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Advisories

No advisories yet.

History

Tue, 18 Aug 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate


Sat, 15 Aug 2026 11:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-476

Sat, 15 Aug 2026 06:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: drm/panthor: Fix potential invalid pointer deref in group_process_tiler_oom() If heaps is an ERR_PTR(), panthor_heap_pool_put() will deref an invalid pointer. Make sure we set it to NULL in that case.
Title drm/panthor: Fix potential invalid pointer deref in group_process_tiler_oom()
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Subscriptions

Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-08-17T05:13:40.696Z

Reserved: 2026-08-09T03:40:39.923Z

Link: CVE-2026-72387

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-15T06:22:12.210

Modified: 2026-08-17T06:19:05.053

Link: CVE-2026-72387

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-08-15T00:00:00Z

Links: CVE-2026-72387 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-18T15:00:06Z

Weaknesses