Service interruption via unchecked Alauda USB transfer
Published Dec 9, 2025 · Updated May 11, 2026
Uninitialized-data use in the Linux kernel Alauda USB-storage subdriver allows local users to interrupt service through a failed transfer. The alauda_check_media() function consumes its receive buffer without first confirming that the USB control transfer succeeded, leaving failed transfers to supply uninitialized data. Reachability requires local access to an Alauda-compatible USB device and control over a transfer failure; the documented impact is limited to availability.
Summary
What happened
Uninitialized-data use in the Linux kernel Alauda USB-storage subdriver allows local users to interrupt service through a failed transfer. The alauda_check_media() function consumes its receive buffer without first confirming that the USB control transfer succeeded, leaving failed transfers to supply uninitialized data. Reachability requires local access to an Alauda-compatible USB device and control over a transfer failure; the documented impact is limited to availability.
The record
- CVE
- CVE-2023-53847
- Published
- Dec 9, 2025
- Updated
- May 11, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- Unavailable
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 9, 2025CVE publishedPublication date reported by the CVE source.
- May 11, 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=2.6.16
- Affected versionversion=e80b0fade09ef1ee67b0898d480d4c588f124d5f <044f4446e06bb03c52216697b14867ebc555ad3b
- Affected versionversion=e80b0fade09ef1ee67b0898d480d4c588f124d5f <0d2d5282d39aed6f27dfe1ed60a5f3934ebd21cd
- Affected versionversion=e80b0fade09ef1ee67b0898d480d4c588f124d5f <153c3e85873cc3e2f387169783c3a227bad9a95a
- Affected versionversion=e80b0fade09ef1ee67b0898d480d4c588f124d5f <373e0ab8c4c516561493f1acf367c7ee7dc053c2
- Affected versionversion=e80b0fade09ef1ee67b0898d480d4c588f124d5f <49d380bcd6cba987c6085fae6464c9c087e8d9a0
- Affected versionversion=e80b0fade09ef1ee67b0898d480d4c588f124d5f <7a11d1e2625bdb2346f6586773b20b20977278ac
- Affected versionversion=e80b0fade09ef1ee67b0898d480d4c588f124d5f <a6ff6e7a9dd69364547751db0f626a10a6d628d2
- Affected versionversion=e80b0fade09ef1ee67b0898d480d4c588f124d5f <fe7c3a445d22783d27fe8bd0521a8aab1eb9da65
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
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Weakness, pattern, technique
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Public exploit references
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Technologies
Your stack
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