RLSA-2026:95367: Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

kernel: writeback: fix race between cgroupwritebackumount() and inodeswitchwbs() (CVE-2026-64378)

kernel: sunrpc: pin svcxprt across the asynchronous TLS handshake callback (CVE-2026-72222)

kernel: sunrpc: wait for in-flight TLS handshake callback when cancel loses race (CVE-2026-72221)

kernel: fs/resctrl: Fix use-after-free during unmount (CVE-2026-72080)

kernel: sctp: clear newtransport when removing a peer (CVE-2026-74586)

kernel: openvswitch: Fix CT limit teardown use-after-free (CVE-2026-89488)

kernel: PCI/sysfs: Add lockdown checks to legacy I/O and memory handlers (CVE-2026-90315)

kernel: kernel: xfs: Unauthorized data modification via improper file size exchange handling (CVE-2026-98974)

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.