The SUSE Linux Enterprise 15 SP1 kernel was updated 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 . by remote attackers to read or write files via directory traversal in an XCOPY request . - CVE-2020-29368,CVE-2020-29374: Fixed an issue in copy-on-write implementation which could have granted unintended write access because of a race condition in a THP mapcount check . The following non-security bugs were fixed: - btrfs: Cleanup try_flush_qgroup . - btrfs: Do not flush from btrfs_delayed_inode_reserve_metadata . - btrfs: fix data bytes_may_use underflow with fallocate due to failed quota reserve - btrfs: Free correct amount of space in btrfs_delayed_inode_reserve_metadata . - btrfs: Remove btrfs_inode from btrfs_delayed_inode_reserve_metadata . - btrfs: Simplify code flow in btrfs_delayed_inode_reserve_metadata . - btrfs: Unlock extents in btrfs_zero_range in case of errors . - Drivers: hv: vmbus: Avoid use-after-free in vmbus_onoffer_rescind . - ibmvnic: fix a race between open and reset . - kernel-binary.spec: Add back initrd and image symlink ghosts to filelist . Fixes: 76a9256314c3 - libnvdimm/dimm: Avoid race between probe and available_slots_show . - net: bcmgenet: add support for ethtool rxnfc flows . - net: bcmgenet: code movement . - net: bcmgenet: fix mask check in bcmgenet_validate_flow . - net: bcmgenet: Fix WoL with password after deep sleep . - net: bcmgenet: re-remove bcmgenet_hfb_add_filter . - net: bcmgenet: set Rx mode before starting netif . - net: bcmgenet: use __be16 for htons . - net: bcmgenet: Use correct I/O accessors . - net: lpc-enet: fix error return code in lpc_mii_init . - net/mlx4_en: Handle TX error CQE . - net: moxa: Fix a potential double "free_irq" . - net: sun: fix missing release regions in cas_init_one . - nvme-multipath: Early exit if no path is available . - rpm/post.sh: Avoid purge-kernel for the first installed kernel - scsi: target: fix unmap_zeroes_data boolean initialisation . - usb: dwc2: Abort transaction after errors with unknown reason . - usb: dwc2: Do not update data length if it is 0 on inbound transfers . - usb: dwc2: Make quot;trimming xfer lengthquot; a debug message . - vmxnet3: Remove buf_info from device accessible structures . - xen/netback: avoid race in xenvif_rx_ring_slots_available . - xen/netback: fix spurious event detection for common event case . Special Instructions and Notes: Please reboot the system after installing this update.