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

usb: musb: omap2430: Fix use-after-free in omap2430_probe()

In omap2430_probe(), of_node_put(np) is called prematurely before the
last access to np, leading to a use-after-free if the node's reference
count drops to zero. Move the of_node_put() calls after the last use of
np in both the success and error paths.
Published: 2026-07-19
Score: 8.4 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

A use-after-free flaw exists in the OMAP2430 musb driver, where the OF node is released before its last use during probe. This can corrupt kernel memory, potentially leading to a system crash or arbitrary kernel code execution.

Affected Systems

The vulnerability is present in all Linux kernel releases that include the OMAP2430 musb driver before the recent fix. Devices that embed the Texas Instruments OMAP2430 SoC and use the musb driver are impacted. No specific kernel versions are noted in the advisory, so all vulnerable kernels are assumed affected.

Risk and Exploitability

The CVSS score of 8.4 signals high severity, while the EPSS score of less than 1% indicates a low but non-zero likelihood of exploitation. The issue is not listed in the CISA KEV catalog. The likely attack vector is local or via a connected USB device that triggers device probe, requiring privileged or root access to fully exploit the memory corruption. Exploitation requires local root or kernel-level permissions, as the driver runs in kernel context.

Generated by OpenCVE AI on August 4, 2026 at 06:48 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade the Linux kernel to a version that incorporates the review commit identifying the premature of_node_put.
  • Apply the patch from the kernel commit directly to the kernel source and rebuild the kernel if an upgrade is not possible.
  • Disable or remove the musb driver until a patched kernel is available, and monitor for system instability or reboot events.

Generated by OpenCVE AI on August 4, 2026 at 06:48 UTC.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
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
History

Sun, 26 Jul 2026 08:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-416

Wed, 22 Jul 2026 19:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-416

Wed, 22 Jul 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-825
References
Metrics threat_severity

None

threat_severity

Moderate


Mon, 20 Jul 2026 14:45:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.4, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Sun, 19 Jul 2026 15:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: usb: musb: omap2430: Fix use-after-free in omap2430_probe() In omap2430_probe(), of_node_put(np) is called prematurely before the last access to np, leading to a use-after-free if the node's reference count drops to zero. Move the of_node_put() calls after the last use of np in both the success and error paths.
Title usb: musb: omap2430: Fix use-after-free in omap2430_probe()
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: 2026-08-05T12:37:01.876Z

Reserved: 2026-07-19T07:54:57.020Z

Link: CVE-2026-63906

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-07-19T00:00:00Z

Links: CVE-2026-63906 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-08-04T07:00:05Z

Weaknesses
  • CWE-825

    Expired Pointer Dereference