Linux kernel before 5.6.2 between the VT_DISALLOCATE ioctl and closing opening of ttys could lead to a use-after-free

Linux kernel before 5.6.2 between the VTDISALLOCATE ioctl and closing/opening of ttys could lead to a use-after-free...

Use-after-free

kernel is vulnerable to Use-after-free. A race condition between the VTDISALLOCATE ioctl and closing/opening of ttys could lead to a use-after-free resulting in an application crash...

CVE-2020-36557

A race condition in the Linux kernel before 5.6.2 between the VTDISALLOCATE ioctl and closing/opening of ttys could lead to a use-after-free...

Race condition

A race condition in the Linux kernel before 5.6.2 between the VTDISALLOCATE ioctl and closing/opening of ttys could lead to a use-after-free...

CVE-2020-36557: Concurrent Execution using Shared Resource with Improper Synchronization

A race condition in the Linux kernel before 5.6.2 between the VTDISALLOCATE ioctl and closing/opening of ttys could lead to a use-after-free...