ALSA-2021:1093

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ALSA-2021:1093

Summary: Important: kernel security, bug fix, and enhancement update

Details: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: use after free in eventpoll.c may lead to escalation of privilege (CVE-2020-0466) * kernel: SCSI target (LIO) write to any block on ILO backstore (CVE-2020-28374) * kernel: Use after free via PI futex state (CVE-2021-3347) * kernel: race conditions caused by wrong locking in net/vmw_vsock/af_vsock.c (CVE-2021-26708) * kernel: out-of-bounds read in libiscsi module (CVE-2021-27364) * kernel: heap buffer overflow in the iSCSI subsystem (CVE-2021-27365) * Kernel: KVM: host stack overflow due to lazy update IOAPIC (CVE-2020-27152) * kernel: iscsi: unrestricted access to sessions and handles (CVE-2021-27363) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Bug Fix(es): * race condition when creating child sockets from syncookies (BZ#1915529) * On System Z, a hash needs state randomized for entropy extraction (BZ#1915816) * scsi: target: core_tmr_abort_task() reporting multiple aborts for the same se_cmd->tag (BZ#1918354) * [mlx5] VF interface stats are not reflected in "ip -s link show" / "ifconfig <vf>" commands (BZ#1921060) * Win10 guest automatic reboot after migration in Win10 and WSL2 on Intel hosts (BZ#1923281) * [AlmaLinux 8.3] Repeated messages - Unable to burst-read optrom segment (BZ#1924222) * Backport bug fix RDMA/umem: Prevent small pages from being returned by ib_umem_find_best_pgsz (BZ#1924691) * [Cisco 8.3] AlmaLinux/Cent 8.2 fNIC driver needs a patch fix that addresses crash (BZ#1925186) * AlmaLinux8.3 - The kernel misdetects zCX with z/VM (BZ#1925508) * Backport 22e4663e91 ("mm/slub: fix panic in slab_alloc_node()") (BZ#1925511) * SCTP "Address already in use" when no active endpoints from AlmaLinux 8.2 onwards (BZ#1927521) * lpfc: Fix initial FLOGI failure due to BBSCN not supported (BZ#1927921) * [mm] mm, oom: remove oom_lock from oom_reaper (BZ#1929738) * Unexpected thread movement with AMD Milan compared to Rome (BZ#1929740) * rpmbuild cannot build the userspace RPMs in the kernel package when the kernel itself is not built (BZ#1929910) * [Regression] AlmaLinux8.2 - ISST-LTE:pVM:diapvmlp83:sum:memory DLPAR fails to add memory on multiple trials[mm/memory_hotplug.c:1163] (mm-) (BZ#1930168) * Configuring the system with non-RT kernel will hang the system (BZ#1930735) * Upstream Patch for Gracefully handle DMAR units with no supported address widthsx86/vt-d (BZ#1932199) * gfs2: Deadlock between gfs2_{create_inode,inode_lookup} and delete_work_func (BZ#1937109) * Failing on tsx-ctrl when the flag doesn't change anything (BZ#1939013) Enhancement(s): * RFE: Backport all Audit enhancements and fixes up to version 5.10-rc1 (BZ#1907520) * AlmaLinux8.4: Update the target driver (BZ#1918363) * [Mellanox 8.4 FEAT] mlx5: Hairpin Support in Switch Mode (BZ#1924689)

References: https://vulners.com/cve/CVE-2020-0466, https://vulners.com/cve/CVE-2020-27152, https://vulners.com/cve/CVE-2020-28374, https://vulners.com/cve/CVE-2021-26708, https://vulners.com/cve/CVE-2021-27363, https://vulners.com/cve/CVE-2021-27364, https://vulners.com/cve/CVE-2021-27365, https://vulners.com/cve/CVE-2021-3347