Display detection failure via premature AUX completion
Published Aug 21, 2024 · Updated May 11, 2026
Race condition in the DRM MSM DisplayPort AUX handler in Linux 5.10 through 6.2-rc1 allows local users to disrupt display detection. The dp_aux_isr function completes a pending AUX read for any DisplayPort interrupt, allowing VIDEO_READY to release the waiter before sink data reaches the host buffer. Triggering the race requires an MSM DisplayPort device during an AUX transfer; corrupted EDID data can prevent panel identification during boot.
Summary
What happened
Race condition in the DRM MSM DisplayPort AUX handler in Linux 5.10 through 6.2-rc1 allows local users to disrupt display detection. The dp_aux_isr function completes a pending AUX read for any DisplayPort interrupt, allowing VIDEO_READY to release the waiter before sink data reaches the host buffer. Triggering the race requires an MSM DisplayPort device during an AUX transfer; corrupted EDID data can prevent panel identification during boot.
The record
- CVE
- CVE-2022-48898
- Published
- Aug 21, 2024
- Updated
- May 11, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- CWE-362
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 21, 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?
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- Affected versionversion=5.10
- Affected versionversion=c943b4948b5848fc0e07f875edbd35a973879e22 <1cba0d150fa102439114a91b3e215909efc9f169
- Affected versionversion=c943b4948b5848fc0e07f875edbd35a973879e22 <785607e5e6fb52caf141e4580de40405565f04f1
- Affected versionversion=c943b4948b5848fc0e07f875edbd35a973879e22 <984ad875db804948c86ca9e1c2e784ae8252715a
- Affected versionversion=c943b4948b5848fc0e07f875edbd35a973879e22 <b7dcbca46db3c77fdb02c2a9d6239e5aa3b06a59
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
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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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