Vulnerabilities > CVE-2022-48899 - Use After Free vulnerability in Linux Kernel
Attack vector
LOCAL Attack complexity
HIGH Privileges required
LOW Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
In the Linux kernel, the following vulnerability has been resolved: drm/virtio: Fix GEM handle creation UAF Userspace can guess the handle value and try to race GEM object creation with handle close, resulting in a use-after-free if we dereference the object after dropping the handle's reference. For that reason, dropping the handle's reference must be done *after* we are done dereferencing the object.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
References
- https://git.kernel.org/stable/c/19ec87d06acfab2313ee82b2a689bf0c154e57ea
- https://git.kernel.org/stable/c/d01d6d2b06c0d8390adf8f3ba08aa60b5642ef73
- https://git.kernel.org/stable/c/68bcd063857075d2f9edfed6024387ac377923e2
- https://git.kernel.org/stable/c/011ecdbcd520c90c344b872ca6b4821f7783b2f8
- https://git.kernel.org/stable/c/adc48e5e408afbb01d261bd303fd9fbbbaa3e317
- https://git.kernel.org/stable/c/52531258318ed59a2dc5a43df2eaf0eb1d65438e