Kernel memory corruption via failed GPU unmap
Published Apr 1, 2024 · Updated Aug 8, 2024
Use-after-free in Qualcomm GPU kernel components allows local users to corrupt kernel memory by triggering a failed unmap operation. The driver releases GPU mapping memory after an unmap failure, leaving an active reference to freed storage. Local code execution is required; successful exploitation can compromise kernel confidentiality, integrity, and availability.
Summary
What happened
Use-after-free in Qualcomm GPU kernel components allows local users to corrupt kernel memory by triggering a failed unmap operation. The driver releases GPU mapping memory after an unmap failure, leaving an active reference to freed storage. Local code execution is required; successful exploitation can compromise kernel confidentiality, integrity, and availability.
The record
- CVE
- CVE-2024-21468
- Published
- Apr 1, 2024
- Updated
- Aug 8, 2024
- Vendor
- Qualcomm
- Product
- Qualcomm Snapdragon 1200 Wearable Platform Firmware
- Classifications
- CWE-416, T1068
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 1, 2024CVE publishedPublication date reported by the CVE source.
- Aug 8, 2024Record 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=0 <=*
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
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Technologies
Your stack
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Your stack
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