Issued at: 2026-11-06
Updated at: 2026-11-06
Advisory content derived from Red Hat RHSA-2026:95370, © Red Hat, Inc., used under CC BY 4.0, with modifications.
Synopsis
Important: kernel security update
Description
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: net/smc: fix UAF in smc_cdc_rx_handler() by pinning the socket (CVE-2026-64541)
* kernel: sctp: avoid auth_enable sysctl UAF during netns teardown (CVE-2026-68162)
* kernel: s390/zcrypt: Validate length for CCA AES cipher key requests (CVE-2026-68452)
* kernel: s390/zcrypt: Validate length for CCA ECC private key requests (CVE-2026-68451)
* kernel: sunrpc: pin svc_xprt 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: keep chunk->transport in step with the list it is queued on (CVE-2026-74588)
* kernel: sctp: clear new_transport when removing a peer (CVE-2026-74586)
* kernel: sctp: validate cookie AUTH state before use (CVE-2026-74752)
* kernel: s390/vfio_ccw: Cancel existing workqueues (CVE-2026-80553)
* kernel: powerpc/pseries: papr-phy-attest - validate cmd.length, plug mem leak (CVE-2026-80571)
* kernel: s390/qeth: validate user buffer length in SNMP and ARP query ioctls (CVE-2026-80584)
* kernel: sctp: stop processing a packet once its association is deleted (CVE-2026-89479)
* kernel: openvswitch: Fix CT limit teardown use-after-free (CVE-2026-89488)
* kernel: s390/boot: Avoid IPL parameter append past command line (CVE-2026-98403)
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.