The SUSE Linux Enterprise 12 SP3 kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2021-26930: Fixed an improper error handling in blkback"s grant mapping . - CVE-2021-26931: Fixed an issue where Linux kernel was treating grant mapping errors as bugs . - CVE-2021-26932: Fixed improper error handling issues in Linux grant mapping . - CVE-2020-28374: Fixed insufficient identifier checking in the LIO SCSI target code which could have been used by remote attackers to read or write files via directory traversal in an XCOPY request . The following non-security bugs were fixed: - cifs: report error instead of invalid when revalidating a dentry fails . - xen/netback: fix spurious event detection for common event case . Special Instructions and Notes: Please reboot the system after installing this update.