Mali GPU Kernel Driver allows improper GPU memory processing operations
Use After Free vulnerability in Arm Ltd Bifrost GPU Kernel Driver, Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user to make improper GPU memory processing operations to gain access to already freed memory.This issue affects Bifrost GPU Kernel Driver: from r45p0 through r48p0; Valhall GPU Kernel Driver: from r45p0 through r48p0; Arm 5th Gen GPU Architecture Kernel Driver: from r45p0 through r48p0.
- Published
- Apr 19, 2024
- Updated
- Jun 17, 2026
- EPSS
- 0.2% · 11th percentile
- CWE
- CWE-416
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Report tools
Action score
23
Monitor
Low priority for now.
- CVSS
- 23 / 40 · 5.9 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.2%
CISA SSVC decision
- Exploitation
- proof of concept
- Automatable
- no
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpAffected systems
| Vendor | Product | CPE |
|---|---|---|
| arm | 5th gen gpu architecture kernel driver | cpe:2.3:a:arm:5th_gen_gpu_architecture_kernel_driver |
| arm | bifrost gpu kernel driver | cpe:2.3:a:arm:bifrost_gpu_kernel_driver |
| arm | valhall gpu kernel driver | cpe:2.3:a:arm:valhall_gpu_kernel_driver |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- arm 5th gen gpu architecture kernel driverr45p0 and later · before r49p0
- arm bifrost gpu kernel driverr45p0 and later · before r49p0
- arm valhall gpu kernel driverr45p0 and later · before r49p0
Versions reported by the vendor
Affected version ranges reported by the assigning authority (Arm). Independent of NVD's CPE analysis and usually ahead of it.
Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver
- r45p0 and later · up to and including r48p0affected · patchfixed in r49p0
Arm Ltd Bifrost GPU Kernel Driver
- r45p0 and later · up to and including r48p0affected · patchfixed in r49p0
Arm Ltd Valhall GPU Kernel Driver
- r45p0 and later · up to and including r48p0affected · patchfixed in r49p0
Same product
arm: all recordsOther highest-scoring records for the same primary product.
- CVE-2023-4211Mali GPU Kernel Driver Allows Improper GPU Memory Processing OperationsKEV52Plan
- CVE-2023-26083Memory leak vulnerability in Mali GPU Kernel Driver in Midgard GPU Kernel Driver all versions from r6p0 - r32p0, Bifrost GPU Kernel Driver aKEV43Plan
- CVE-2023-6143Mali GPU Kernel Driver allows improper GPU memory processing operations33Monitor
- CVE-2025-0819Mali GPU Kernel Driver allows access to already freed memory31Monitor
- CVE-2025-0073Mali GPU Kernel Driver allows improper GPU memory processing operations31Monitor
- CVE-2025-0427Mali GPU Kernel Driver allows access to already freed memory31Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver | r49p0 | Vendor (CNA) |
| Arm Ltd Bifrost GPU Kernel Driver | r49p0 | Vendor (CNA) |
| Arm Ltd Valhall GPU Kernel Driver | r49p0 | Vendor (CNA) |
Exploit status
Proof of concept available
A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.
Evidence
- Proof-of-concept repository on GitHub ×1
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Proof-of-concept repository on GitHub | stars:5 | 2026-06-02 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- Published
- First PoC+774 d
- TodayOct 8, 2026+903 d
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
- CVE-2023-4211201 days apartMali GPU Kernel Driver Allows Improper GPU Memory Processing OperationsKEV52Plan
- CVE-2023-614346 days apartMali GPU Kernel Driver allows improper GPU memory processing operations33Monitor
- CVE-2024-2937108 days apartMali GPU Kernel Driver allows improper GPU memory processing operations31Monitor
- CVE-2024-4607108 days apartMali GPU Kernel Driver allows improper GPU memory processing operations31Monitor
- CVE-2024-3655137 days apartMali GPU Kernel Driver allows improper GPU memory processing operations31Monitor
- CVE-2023-5427140 days apartMali GPU Kernel Driver allows improper GPU processing operations31Monitor
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
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Bug bounty scope
The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- low · data can be read
- Integrity
- low · data or configuration can be modified
- Availability
- low · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- Low
- Integrity impact
- Low
- Availability impact
- Low
Weakness class (CWE)
CWE-416 · Use After FreeCVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
nvd-secondary
Root cause
After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.
The bug in code
The whole CWE-416 classA representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.
Vulnerable
free(dev->buf);/* ... another thread is still running ... */process(dev->buf);Fixed
lock(&dev->lock);free(dev->buf);dev->buf = NULL;unlock(&dev->lock);Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.