kernel: vc_screen: move load of struct vc_data pointer in vcs_read() to avoid UAF

In the Linux kernel, the following vulnerability has been resolved: vcscreen: move load of struct vcdata pointer in vcsread to avoid UAF After a call to consoleunlock in vcsread the vcdata struct can be freed by vcdeallocate. Because of that, the struct vcdata pointer load must be done at the top...

PT-2025-13319

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.2.0-rc5 Description A use-after-free issue was identified in the Linux kernel, specifically in the vcs read function. This occurs because the vc data struct can be freed by vc deallocate after a call to console...