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

usb: typec: qcom-pmic: cancel reset_work on stop

pdphy_stop() disables IRQs but leaves reset_work pending. If the IRQ
handler schedules it just before disable_irq(), the work runs after
remove() frees the struct via devm.

Call cancel_work_sync() after disabling IRQs to close the window.

This issue was found by an in-house static analysis tool.
Published: 2026-09-16
Score: 7.8 High
EPSS: < 1% Very Low
KEV: No
Impact: Use After Free
Action: Apply Patch
AI Analysis

Impact

The Linux kernel’s USB Type‑C driver for Qualcomm PMIC devices contains a race condition where the PHY stop routine disables interrupts but leaves a pending reset_work unfinished. If the interrupt handler schedules this work just before interrupts are disabled, the work executes after the driver’s device structure has been freed by the device removal code. This results in a use‑after‑free condition that can crash the kernel or, if triggered by an attacker, lead to privilege escalation. The weakness is a classic use‑after‑free flaw, corresponding to CWE‑416.

Affected Systems

This defect is confined to the Linux kernel itself, affecting any build that includes the qcom_pmic USB Type‑C driver in the kernel tree. It is not tied to a particular vendor product or kernel release beyond the presence of the driver, so any kernel that contains the affected code and uses devm‑managed resources is exposed.

Risk and Exploitability

The CVSS score of 7.8 indicates a high‑severity issue, while the EPSS score below 1% suggests that exploitation is currently unlikely. Although the flaw is not listed in the CISA KEV catalog, the window can be exploited because the use‑after‑free occurs after the relevant structure is freed. An attacker would need to trigger the race condition, but if successful, could cause arbitrary code execution with kernel privileges.

Generated by OpenCVE AI on September 18, 2026 at 07:04 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply a kernel patch that inserts a cancel_work_sync(&phy->reset_work) call after disabling interrupts in the pdphy_stop routine.
  • If a patch is not immediately available, upgrade the system to a kernel version that contains the merge of this fix, which eliminates the race condition.
  • As a temporary workaround for custom or in‑house kernels, manually add the cancel_work_sync line after the disable_irq call in the driver source before building the kernel.

Generated by OpenCVE AI on September 18, 2026 at 07:04 UTC.

Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4817-1 linux-6.12 security update
Debian DSA Debian DSA DSA-6528-1 linux security update
History

Fri, 18 Sep 2026 07:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-362
CWE-416

Wed, 16 Sep 2026 14:45:00 +0000

Type Values Removed Values Added
Metrics 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'}


Wed, 16 Sep 2026 10:45:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: usb: typec: qcom-pmic: cancel reset_work on stop pdphy_stop() disables IRQs but leaves reset_work pending. If the IRQ handler schedules it just before disable_irq(), the work runs after remove() frees the struct via devm. Call cancel_work_sync() after disabling IRQs to close the window. This issue was found by an in-house static analysis tool.
Title usb: typec: qcom-pmic: cancel reset_work on stop
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: 2026-09-16T14:41:41.836Z

Reserved: 2026-09-11T19:38:34.782Z

Link: CVE-2026-90026

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-16T11:17:15.613

Modified: 2026-09-16T15:18:25.923

Link: CVE-2026-90026

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-18T07:15:04Z

Weaknesses
  • CWE-362

    Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

  • CWE-416

    Use After Free