SUSE: 2020:0559-1 Important Update: Kernel Security Issues Resolved

The SUSE Linux Enterprise 12 SP4 Azure kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2020-2732: Fixed an issue affecting Intel CPUs where an L2 guest may trick the L0 hypervisor into accessing sensitive L1 resources (bsc#1163971). - CVE-2020-8992: An issue was discovered in ext4_protect_reserved_inode in fs/ext4/block_validity.c that allowed attackers to cause a soft lockup via a crafted journal size (bnc#1164069). - CVE-2020-8648: There was a use-after-free vulnerability in the n_tty_receive_buf_common function in drivers/tty/n_tty.c (bnc#1162928). - CVE-2020-8428: There was a use-after-free bug in fs/namei.c, which allowed local users to cause a denial of service or possibly obtain sensitive information from kernel memory (bnc#1162109).