Red Hat Enterprise Linux 8 Kernel DoS Vulnerability Fix RHSA-2023:4517-01 CVE-2022-42896

The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: use-after-free in l2cap_connect and l2cap_le_connect_req in net/bluetooth/l2cap_core.c (CVE-2022-42896)
* kernel: tcindex: use-after-free vulnerability in traffic control index filter allows privilege escalation (CVE-2023-1281)
* kernel: Use-after-free vulnerability in the Linux Kernel traffic control index filter (CVE-2023-1829)
* kernel: use-after-free vulnerability in the perf_group_detach function of the Linux Kernel Performance Events (CVE-2023-2235)
* kernel: OOB access in the Linux kernel's XFS subsystem (CVE-2023-2124)
* kernel: i2c: out-of-bounds write in xgene_slimpro_i2c_xfer() (CVE-2023-2194)
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):
* simultaneous writes to a page on xfs can result in zero-byte data (BZ#2184101)
* RHEL 8.4 - kernel: fix __clear_user() inline assembly constraints (BZ#2192602)
* LPAR is crashed by Phyp when doing DLPAR CPU operations (BZ#2193375)
* ice: ptp4l cpu usage spikes (BZ#2203285)
* Kernel - Significant performance drop for getrandom system call when FIPS is enabled (compared to RHEL 8.x for all x < 6.z) (BZ#2208127)
* macvlan: backports from upstream (BZ#2209686)
* Intel 8.9 BUG VROC: Pull VMD secondary bus reset patch (BZ#2211198)
* Incorrect target abort handling causes iscsi deadlock (BZ#2211494)
* swap deadlock when attempt to charge a page to a cgroup stalls waiting on I/O plugged on another task in swap code (BZ#2211513)
* BUG_ON "kernel BUG at mm/rmap.c:1041!" in __page_set_anon_rmap() when vma->anon_vma==NULL (BZ#2211658)
* RHEL 8.9: IPMI updates and bug fixes (BZ#2211667)
* RHEL 8.6 opening console with mkvterm on novalink terminal fails due to drmgr reporting failure (L3:) (BZ#2212373)
* RHEL 8.8 - P10 DD2.0: Wrong numa_node is assigned to vpmem device (BZ#2212451)
* RHEL 8.8 beta: Occasional stall during initialization of ipmi_msghandler (BZ#2213189)
* ESXi RHEL 8: Haswell generation CPU are impacted with performance due to IBRS (BZ#2213366)
* xen: fix section mismatch error with xen_callback_vector() and alloc_intr_gate() (BZ#2214281)
* jitter: Fix RCT/APT health test during initialization (BZ#2215079)
* aacraid misses interrupts when a CPU is disabled resulting in scsi timeouts and the adapter being unusable until reboot. (BZ#2216498)
* Hyper-V RHEL 8: Fix VM crash/hang Issues due to fast VF add/remove events (BZ#2216543)
* rbd: avoid fast-diff corruption in snapshot-based mirroring [8.9] (BZ#2216769)
* Regression of 3b8cc6298724 ("blk-cgroup: Optimize blkcg_rstat_flush()") (BZ#2220810)