Memory corruption via graphics double-free
Published Jan 6, 2026 · Updated Jan 6, 2026
Double-free memory corruption in Qualcomm Snapdragon graphics allows local users to corrupt memory during secure-application launch. In kgsl_sharedmem.c, a low-memory allocation-failure path releases page memory that cleanup later releases again. The gate is local low-privileged access plus insufficient device memory during launch; successful corruption permits data access, alteration, or device interruption.
Summary
What happened
Double-free memory corruption in Qualcomm Snapdragon graphics allows local users to corrupt memory during secure-application launch. In kgsl_sharedmem.c, a low-memory allocation-failure path releases page memory that cleanup later releases again. The gate is local low-privileged access plus insufficient device memory during launch; successful corruption permits data access, alteration, or device interruption.
The record
- CVE
- CVE-2025-47396
- Published
- Jan 6, 2026
- Updated
- Jan 6, 2026
- Vendor
- Qualcomm
- Product
- Snapdragon
- Classifications
- CWE-415
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 6, 2026CVE publishedPublication date reported by the CVE source.
- Jan 6, 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=FastConnect 6200
- Affected versionversion=FastConnect 6700
- Affected versionversion=FastConnect 6900
- Affected versionversion=FastConnect 7800
- Affected versionversion=QCS610
- Affected versionversion=QMP1000
- Affected versionversion=Qualcomm Video Collaboration VC1 Platform
- Affected versionversion=Qualcomm Video Collaboration VC3 Platform
- Affected versionversion=SM6475
- Affected versionversion=SM7435
- Affected versionversion=SM8735
- Affected versionversion=SM8750
- Affected versionversion=SM8750P
- Affected versionversion=Snapdragon 4 Gen 2 Mobile Platform
- Affected versionversion=Snapdragon 6 Gen 1 Mobile Platform
- Affected versionversion=Snapdragon AR1 Gen 1 Platform
- Affected versionversion=Snapdragon AR1 Gen 1 Platform "Luna1"
- Affected versionversion=Snapdragon W5+ Gen 1 Wearable Platform
- Affected versionversion=SW5100
- Affected versionversion=SW5100P
- Affected versionversion=SXR2330P
- Affected versionversion=SXR2350P
- Affected versionversion=WCD9370
- Affected versionversion=WCD9375
- Affected versionversion=WCD9378
- Affected versionversion=WCD9380
- Affected versionversion=WCD9385
- Affected versionversion=WCD9395
- Affected versionversion=WCN3950
- Affected versionversion=WCN3980
- Affected versionversion=WCN3988
- Affected versionversion=WCN6755
- Affected versionversion=WCN7750
- Affected versionversion=WCN7860
- Affected versionversion=WCN7861
- Affected versionversion=WCN7880
- Affected versionversion=WCN7881
- Affected versionversion=WSA8810
- Affected versionversion=WSA8815
- Affected versionversion=WSA8830
- Affected versionversion=WSA8832
- Affected versionversion=WSA8835
- Affected versionversion=WSA8840
- Affected versionversion=WSA8845
- Affected versionversion=WSA8845H
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
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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