CVE-2026-7639— GPU DDK - Page UAF read in PMMETA_PROTECT heap memory
Possible ATT&CK Techniques 2AI
T1068 · Exploitation for Privilege Escalation T1211 · Exploitation for StealthAffected Version Matrix 6
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Imagination Technologies | Graphics DDK | 1.18 RTM2 | affected |
23.2 RTM2 | affected | ||
24.2 RTM2 | affected | ||
25.1 RTM2≤ 25.3 RTM | affected | ||
26.1 RTM1 | affected | ||
26.1 RTM2 | unaffected |
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I. Basic Information for CVE-2026-7639
Vulnerability Information
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Vulnerability Title
GPU DDK - Page UAF read in PMMETA_PROTECT heap memory
Source: NVD (National Vulnerability Database)
Vulnerability Description
Software installed and run as a non-privileged user may conduct a sequence of improper GPU system calls causing use after free, which helps in facilitating unprivileged memory access from a shader code. Triggering failure path in the MMU mapping logic by a malicious code could lead to incomplete cleanup of an internal driver state, allowing for future unauthorized access to the contents of the physical memory.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
清理环节不完整
Source: NVD (National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Imagination Technologies | Graphics DDK | 1.18 RTM2 | - |
II. Public POCs for CVE-2026-7639
| # | POC Description | Source Link | Shenlong Link |
|---|
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News Coverage for CVE-2026-7639 (1)
Same Patch Batch · Imagination Technologies · 2026-07-10 · 5 CVEs total
| CVE-2026-41154 | GPU DDK - Incorrect Index Calculation in CMA Cleanup Path of AllocOSPages_Sparse | |
| CVE-2026-45203 | GPU DDK - rgxfw_hwperf_ufo() re-reads psCmdHeader->ui32CmdSize after initial check, TOCTOU | |
| CVE-2026-45196 | GPU DDK - Arbitrary GPU register write in rgxfw_hwperf_hw due to unsanitized pointers from | |
| CVE-2026-34196 | GPU DDK - UAF read and/or write of arbitrary physical memory due to integer truncation in |
IV. Related Vulnerabilities
Same product: Graphics DDK
- CVE-2026-45203
GPU DDK - rgxfw_hwperf_ufo() re-reads psCmdHeader->ui32CmdSi - CVE-2026-45196
GPU DDK - Arbitrary GPU register write in rgxfw_hwperf_hw du - CVE-2026-41154
GPU DDK - Incorrect Index Calculation in CMA Cleanup Path of - CVE-2026-34196
GPU DDK - UAF read and/or write of arbitrary physical memory - CVE-2026-45195
GPU DDK - rgxfw_set_mips_fault_address(&psInit->sFaultPhysAd
Same vendor: Imagination Technologies
- CVE-2026-45203
GPU DDK - rgxfw_hwperf_ufo() re-reads psCmdHeader->ui32CmdSi - CVE-2026-45196
GPU DDK - Arbitrary GPU register write in rgxfw_hwperf_hw du - CVE-2026-41154
GPU DDK - Incorrect Index Calculation in CMA Cleanup Path of - CVE-2026-34196
GPU DDK - UAF read and/or write of arbitrary physical memory - CVE-2026-45195
GPU DDK - rgxfw_set_mips_fault_address(&psInit->sFaultPhysAd
Same weakness: CWE-459
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AMD多款产品 安全漏洞 - CVE-2026-34263
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V. Comments for CVE-2026-7639
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