RLSA-2026:90365: Important: kernel security, bug fix, and enhancement update

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

Security Fix(es):

kernel: udp: Deal with race between UDP socket address change and rehash (CVE-2024-57974)

kernel: fuse: re-lock request before replacing page cache folio (CVE-2026-53388)

kernel: net/handshake: hand off the pinned file reference to acceptdoit (CVE-2026-63979)

kernel: net/handshake: Drain pending requests at net namespace exit (CVE-2026-63978)

kernel: fuse: re-lock request before returning from fusereffolio() (CVE-2026-64266)

kernel: net/handshake: Take a long-lived file reference at submit (CVE-2026-64523)

kernel: ipvs: reload ip header after head reallocation (CVE-2026-68476)

kernel: selinux: avoid sksocket dereference in selinuxsctpbindconnect() (CVE-2026-72242)

kernel: KVM: s390: pci: Reject adapter interrupt forwarding if already enabled (CVE-2026-74515)

kernel: usb: usbfs: fix use-after-free of usbdevice in usbdevrelease() (CVE-2026-80824)

kernel: smb: client: clear setuid/setgid bit on write with cifsacl/modefromsid/posix extensions (CVE-2026-89638)

kernel: vfio/pci: clear vdev->msiperm after freeing it on init failure (CVE-2026-89777)

kernel: md/raid5-ppl: fix use-after-free in ppldoflush() (CVE-2026-93262)

kernel: KEYS: encrypted: fix integer overflow of databloblen (CVE-2026-98222)

kernel: netfilter: flowtable: hold reference on ct until flow is released (CVE-2026-98320)

Bug Fix(es) and Enhancement(s):

kernel panic at cryptoxor+0x2 after a number of out-of-bounds read and use-after-free read (JIRA:Rocky Linux-257205)

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.