CVE-2022-46395: Use After Free
First published: Mon Mar 06 2023(Updated: )
An issue was discovered in the Arm Mali GPU Kernel Driver. A non-privileged user can make improper GPU processing operations to gain access to already freed memory. This affects Midgard r0p0 through r32p0, Bifrost r0p0 through r41p0 before r42p0, Valhall r19p0 through r41p0 before r42p0, and Avalon r41p0 before r42p0.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Google Android | ||
| Arm Avalon Gpu Kernel Driver | =r41p0 | |
| Arm Bifrost Gpu Kernel Driver | >=r0p0<=r41p0 | |
| Arm Midguard Gpu Kernel Driver | >=r0p0<=r32p0 | |
| Arm Valhall Gpu Kernel Driver | >=r19p0<=r41p0 | |
| Arm Midgard Gpu Kernel Driver | >=r0p0<=r32p0 |
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Reference Links
- https://source.android.com/docs/security/bulletin/2023-05-01/#asterisk
- https://source.android.com/docs/security/bulletin/2023-05-01 (Advisory)
- http://packetstormsecurity.com/files/172855/Android-Arm-Mali-GPU-Arbitrary-Code-Execution.html
- https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities
- https://developer.arm.com/support/arm-security-updates
Frequently Asked Questions
What is CVE-2022-46395?
CVE-2022-46395 is an issue discovered in the Arm Mali GPU Kernel Driver that allows a non-privileged user to gain access to already freed memory through improper GPU processing operations.
Which software is affected by CVE-2022-46395?
CVE-2022-46395 affects Arm Mali GPU Kernel Driver in Midgard r0p0 through r32p0, Bifrost r0p0 through r41p0 before r42p0, Valhall r19p0 through r41p0 before r42p0, and Avalon.
What is the severity of CVE-2022-46395?
CVE-2022-46395 has a severity rating of 8.8 (high).
How can a non-privileged user exploit CVE-2022-46395?
A non-privileged user can exploit CVE-2022-46395 by performing improper GPU processing operations to gain access to already freed memory.
Are there any references available for CVE-2022-46395?
Yes, you can find more information about CVE-2022-46395 at the following references: [Reference 1](https://source.android.com/docs/security/bulletin/2023-05-01/#asterisk), [Reference 2](https://source.android.com/docs/security/bulletin/2023-05-01), [Reference 3](http://packetstormsecurity.com/files/172855/Android-Arm-Mali-GPU-Arbitrary-Code-Execution.html)
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- canonical/arm midguard gpu kernel driver
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- version/arm midguard gpu kernel driver/r32p0
- canonical/arm valhall gpu kernel driver
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