Local privilege escalation via ipu7 error-path memory corruption
Published Jul 25, 2026 · Updated Jul 25, 2026
Memory corruption in the Linux kernel ipu7 driver 6.17 allows local users to crash the system or gain elevated privileges. During ipu7_isys_init() and ipu7_psys_init(), failed device setup tears down adev and frees pdata, but the error paths free pdata again and derive a return value through the released adev pointer. Exploitation requires local low-privileged access and a reachable ipu7 driver initialization failure; successful memory corruption can interrupt the host or execute code with elevated privileges.
Summary
What happened
Memory corruption in the Linux kernel ipu7 driver 6.17 allows local users to crash the system or gain elevated privileges. During ipu7_isys_init() and ipu7_psys_init(), failed device setup tears down adev and frees pdata, but the error paths free pdata again and derive a return value through the released adev pointer. Exploitation requires local low-privileged access and a reachable ipu7 driver initialization failure; successful memory corruption can interrupt the host or execute code with elevated privileges.
The record
- CVE
- CVE-2026-64447
- Published
- Jul 25, 2026
- Updated
- Jul 25, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux Kernel
- Classifications
- T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 25, 2026CVE publishedPublication date reported by the CVE source.
- Jul 25, 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=6.17
- Affected versionversion=b7fe4c0019b12d60ece3e99eeb0ccfd5a1d103e5 <837c1f9655421055f751ed34745e820a54a27642
- Affected versionversion=b7fe4c0019b12d60ece3e99eeb0ccfd5a1d103e5 <b5ddc7257bee71f5b8cf9083e2b0ac0427e9fbb3
- Affected versionversion=b7fe4c0019b12d60ece3e99eeb0ccfd5a1d103e5 <d3a9a8cf2d7fd61a2f63df61f6cbc0a9bb007cc0
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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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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