System hang via recursive resume mutex lock
Published Feb 14, 2026 · Updated Feb 14, 2026
Improper locking in the Linux Kernel r8152 driver allows local users to hang affected systems during USB network-device resume and reset. The rtl8152_resume path calls usb_reset_device while holding tp->control; reset re-enters rtl8152_post_reset and tries to acquire the same mutex recursively. Low-privileged local access and an affected r8152 USB adapter entering the inaccessible-device resume path are required, causing a device timeout and eventual panic.
Summary
What happened
Improper locking in the Linux Kernel r8152 driver allows local users to hang affected systems during USB network-device resume and reset. The rtl8152_resume path calls usb_reset_device while holding tp->control; reset re-enters rtl8152_post_reset and tries to acquire the same mutex recursively. Low-privileged local access and an affected r8152 USB adapter entering the inaccessible-device resume path are required, causing a device timeout and eventual panic.
The record
- CVE
- CVE-2026-23188
- Published
- Feb 14, 2026
- Updated
- Feb 14, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux Kernel
- Classifications
- CWE-667, T1499
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 14, 2026CVE publishedPublication date reported by the CVE source.
- Feb 14, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=4933b066fefbee4f1d2d708de53c4ab7f09026ad <1b2efc593dca99d8e8e6f6d6c7ccd9a972679702
- Affected versionversion=4933b066fefbee4f1d2d708de53c4ab7f09026ad <61c8091b7937f91f9bc0b7f6b578de270fe35dc7
- Affected versionversion=4933b066fefbee4f1d2d708de53c4ab7f09026ad <6d06bc83a5ae8777a5f7a81c32dd75b8d9b2fe04
- Affected versionversion=6.11
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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