Synopsis: Important: kernel security update Advisory ID: SLSA-2021:3173-1 Issue Date: 2021-08-17 CVE Numbers: CVE-2021-22543 CVE-2021-32399 CVE-2021-22555 -- Security Fix(es): * kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks (CVE-2021-22543) * kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c (CVE-2021-22555) * kernel: race condition for removal of the HCI controller (CVE-2021-32399) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE -- - Scientific Linux Development Team