CVE-2025-22097: drm/vkms: Fix use after free and double free on init error
First published: Wed Apr 16 2025(Updated: )
In the Linux kernel, the following vulnerability has been resolved: drm/vkms: Fix use after free and double free on init error If the driver initialization fails, the vkms_exit() function might access an uninitialized or freed default_config pointer and it might double free it. Fix both possible errors by initializing default_config only when the driver initialization succeeded.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | ||
| Linux Kernel | >=5.12<5.15.180 | |
| Linux Kernel | >=5.16<6.1.134 | |
| Linux Kernel | >=6.2<6.6.87 | |
| Linux Kernel | >=6.7<6.12.23 | |
| Linux Kernel | >=6.13<6.13.11 | |
| Linux Kernel | >=6.14<6.14.2 |
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Reference Links
- https://git.kernel.org/stable/c/49a69f67f53518bdd9b7eeebf019a2da6cc0e954
- https://git.kernel.org/stable/c/79d138d137b80eeb0a83244d1cff29e64cf91067
- https://git.kernel.org/stable/c/561fc0c5cf41f646f3e9e61784cbc0fc832fb936
- https://git.kernel.org/stable/c/d5eb8e347905ab17788a7903fa1d3d06747355f5
- https://git.kernel.org/stable/c/b8a18bb53e06d6d3c1fd03d12533d6e333ba8853
- https://git.kernel.org/stable/c/1f68f1cf09d06061eb549726ff8339e064eddebd
- https://git.kernel.org/stable/c/ed15511a773df86205bda66c37193569575ae828
Frequently Asked Questions
What is the severity of CVE-2025-22097?
The severity of CVE-2025-22097 is classified as moderate due to its nature of allowing potential memory corruption.
How do I fix CVE-2025-22097?
To fix CVE-2025-22097, upgrade to the latest stable version of the Linux kernel that includes the patched code.
What systems are affected by CVE-2025-22097?
CVE-2025-22097 affects various versions of the Linux kernel that implement the drm/vkms driver.
What are the risks associated with CVE-2025-22097?
The risks associated with CVE-2025-22097 include potential system instability and exploitation that could lead to unauthorized access or denial of service.
Is there a workaround for CVE-2025-22097?
Currently, there are no publicly recommended workarounds for CVE-2025-22097 other than updating to the patched kernel.
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