QID 356218

a flaw was found in the linux kernels implementation of wireless drivers using the atheros chipsets.
an attacker within wireless range could send crafted traffic leading to information disclosure. (
( CVE-2020-3702) a flaw was found in the kvms amd code for supporting svm nested virtualization.
The flaw occurs when processing the vmcb (virtual machine control block) provided by the l1 guest to spawn/handle a nested guest (l2).
Due to improper validation of the "int_ctl" field, this issue could allow a malicious l1 to enable avic support (advanced virtual interrupt controller) for the l2 guest.
As a result, the l2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape. (
( CVE-2021-3653) a flaw was found in the kvms amd code for supporting svm nested virtualization.
Due to improper validation of the "virt_ext" field, this issue could allow a malicious l1 to disable both vmload/vmsave intercepts and vls (virtual vmload/vmsave) for the l2 guest.
( CVE-2021-3656) a flaw was found in the linux kernels overlayfs subsystem in the way the user mounts the tmpfs filesystem with overlayfs.
This flaw allows a local user to gain access to hidden files that should not be accessible. (
( CVE-2021-3732) a race problem was seen in the vt_k_ioctl in drivers/tty/vt/vt_ioctl.c in the linux kernel, which may cause an out of bounds read in vt as the write access to vc_mode is not protected by lock-in vt_ioctl (kdsetmde).
The highest threat from this vulnerability is to data confidentiality. (
This issue leads to a missing guest protection page fault. (
( CVE-2021-38205)

Successful exploitation of this vulnerability could lead to a securitybreach or could affect integrity, availability, and confidentiality.