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CVE Record

CVE-2026-23188: net: usb: r8152: fix resume reset deadlock

In the Linux kernel, the following vulnerability has been resolved: net: usb: r8152: fix resume reset deadlock rtl8152 can trigger device reset during reset which potentially can result in a deadlock: **** DPM device timeout after 10 seconds; 15 seconds until panic **** Call Trace: <TASK> schedule+0x483/0x1370 schedule_preempt_disabled+0x15/0x30 __mutex_lock_common+0x1fd/0x470 __rtl8152_set_mac_address+0x80/0x1f0 dev_set_mac_address+0x7f/0x150 rtl8152_post_reset+0x72/0x150 usb_reset_device+0x1d0/0x220 rtl8152_resume+0x99/0xc0 usb_resume_interface+0x3e/0xc0 usb_resume_both+0x104/0x150 usb_resume+0x22/0x110 The problem is that rtl8152 resume calls reset under tp->control mutex while reset basically re-enters rtl8152 and attempts to acquire the same tp->control lock once again. Reset INACCESSIBLE device outside of tp->control mutex scope to avoid recursive mutex_lock() deadlock.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This Linux kernel issue can deadlock systems using the rtl8152 USB Ethernet driver during resume and device reset. The observed impact is availability: a resume path can stall long enough to trigger a device power-management timeout and possible panic. No source here reports active exploitation.

Executive priority

Treat as a targeted availability risk, not an emergency internet-facing compromise based on available evidence. Patch during normal kernel maintenance, with higher priority for laptops, appliances, or operational systems using USB Ethernet and power management.

Technical view

The rtl8152 resume path calls USB reset while holding tp->control. Reset re-enters rtl8152 through post-reset MAC address handling and attempts to acquire the same mutex, causing a recursive mutex deadlock. The fix moves reset of an inaccessible device outside the tp->control mutex scope.

Likely exposure

Exposure is most likely on Linux systems with Realtek rtl8152 USB Ethernet devices or the r8152 driver enabled, running affected kernel builds. The source lists Linux kernel affected entries but lacks clear distro package mapping.

Exploitation context

The provided sources describe a deadlock during resume/reset, not a remote code execution path. KEV is false, and no cited source claims exploitation in the wild. Practical impact appears to be local availability loss under device resume conditions.

Researcher notes

Evidence is limited to the CVE record and Linux stable commit references. Severity, CVSS, CWE, exploitability, and exact distro impact are not provided. The vulnerable pattern is a mutex re-entry deadlock in the r8152 resume/reset flow.

Mitigation direction

  • Apply vendor kernel updates that include the referenced stable fixes.
  • Check Linux distribution advisories for backported r8152 fixes.
  • Prioritize systems dependent on USB Ethernet during suspend/resume workflows.
  • If no update exists, follow vendor guidance for temporary operational workarounds.

Validation and detection

  • Inventory kernels running the r8152 or rtl8152 USB Ethernet driver.
  • Confirm whether vendor kernels include the referenced stable commits.
  • Review suspend/resume logs for DPM timeout or rtl8152 reset deadlock symptoms.
  • Track CVE and distribution advisories for affected package mapping.
Prepared
Confidence
medium
Sources
5

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
3Timeline events
0ADP providers
4Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux4933b066fefbee4f1d2d708de53c4ab7f09026ad, 4933b066fefbee4f1d2d708de53c4ab7f09026ad, 4933b066fefbee4f1d2d708de53c4ab7f09026adunaffected
LinuxLinux6.11, 0, 6.12.70, 6.18.10, 6.19affected
Weakness

CWE details

No CWE listed

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