Invalid kernel reads via missing DisplayPort cleanup
Published Sep 17, 2026 · Updated Sep 17, 2026
Use-after-free in Linux 6.18 Rockchip DisplayPort allows local users to trigger invalid kernel reads during driver rebinding. The dw_dp_bind() function registers resources including the AUX channel, but the Rockchip component omits cleanup during unbind and bind-error handling, leaving stale registrations. The documented path involves privileged module operations on Rockchip hardware; the report demonstrates invalid reads, not code execution or data disclosure.
Summary
What happened
Use-after-free in Linux 6.18 Rockchip DisplayPort allows local users to trigger invalid kernel reads during driver rebinding. The dw_dp_bind() function registers resources including the AUX channel, but the Rockchip component omits cleanup during unbind and bind-error handling, leaving stale registrations. The documented path involves privileged module operations on Rockchip hardware; the report demonstrates invalid reads, not code execution or data disclosure.
The record
- CVE
- CVE-2026-93194
- Published
- Sep 17, 2026
- Updated
- Sep 17, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- Unavailable
- Attack vector
- local
- Privileges
- admin
Timeline
How it unfolded
- Sep 17, 2026CVE publishedPublication date reported by the CVE source.
- Sep 17, 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=6.18
- Affected versionversion=d68ba7bac9555d05e2f5b310c898b2a5c7eff174 <11f07929f454ecc2c5d0da3a4727fd205be43e49
- Affected versionversion=d68ba7bac9555d05e2f5b310c898b2a5c7eff174 <362e005b816ee8052a195b98d845966689b398a1
- Affected versionversion=d68ba7bac9555d05e2f5b310c898b2a5c7eff174 <cc6d7aca2f37a1525a94ef97eb3ce361732c876c
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Activity data is delayed. The latest report is Sep 28, 2026.
Weakness, pattern, technique
No sourced classifications are available.
Public exploit references
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Technologies
Your stack
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