Transient display blackout via unsupported PSR-SU enablement
Published Nov 5, 2024 · Updated May 11, 2026
Display availability flaw in Linux from 5.19 allows local users to interrupt output on systems with a Parade 08-01 TCON. The AMD display power helper permits PSR-SU for that controller, causing dmub_psr_enable() to emit a kernel warning and blank the screen. Reachability requires the specific AMD display and TCON combination during boot or fullscreen VA-API video; the reported interruption lasts about one second.
Summary
What happened
Display availability flaw in Linux from 5.19 allows local users to interrupt output on systems with a Parade 08-01 TCON. The AMD display power helper permits PSR-SU for that controller, causing dmub_psr_enable() to emit a kernel warning and blank the screen. Reachability requires the specific AMD display and TCON combination during boot or fullscreen VA-API video; the reported interruption lasts about one second.
The record
- CVE
- CVE-2024-50108
- Published
- Nov 5, 2024
- Updated
- May 11, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- T1499
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Nov 5, 2024CVE 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=5.19
- Affected versionversion=9dd941015718c1387d6f7f61bd4394d38d273c50 <5660bcc4dd533005248577d5042f1c48cce2b443
- Affected versionversion=9dd941015718c1387d6f7f61bd4394d38d273c50 <ba1959f71117b27f3099ee789e0815360b4081dd
- Affected versionversion=9dd941015718c1387d6f7f61bd4394d38d273c50 <c79e0a18e4b301401bb745702830be9041cfbf04
- Affected versionversion=9dd941015718c1387d6f7f61bd4394d38d273c50 <fc6afa07b5e251148fb37600ee06e1a7007178c3
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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