RLSA-2026:27789

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

Security Fix(es):

• kernel: can: isotp: fix tx.buf use-after-free in isotp_sendmsg() (CVE-2026-31474)

• kernel: mptcp: fix slab-use-after-free in __inetlookupestablished (CVE-2026-31669)

• kernel: xen/privcmd: fix double free via VMA splitting (CVE-2026-31787)

• kernel: Bluetooth: hcisync: fix stack buffer overflow in hcilebigcreate_sync (CVE-2026-31772)

• kernel: bnxt_en: Fix RSS context delete logic (CVE-2026-43260)

• kernel: ALSA: usb-audio: Add sanity check for OOB writes at silencing (CVE-2026-43279)

• kernel: scsi: qla2xxx: Completely fix fcport double free (CVE-2026-43414)

• kernel: net/sched: act_pedit: extend the writable skb range per key (CVE-2026-46331)

• kernel: gfs2: Fix use-after-free in iomap inline data write path (CVE-2026-45984)

• kernel: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers (CVE-2026-46056)

• kernel: wifi: mac80211: drop stray 'static' from fast-RX rx_result (CVE-2026-46152)

• kernel: RDMA/mana: Remove user triggerable WARNON() in manaibcreateqp_rss() (CVE-2026-46117)

• kernel: RDMA/mana: Validate rxhashkey_len (CVE-2026-46145)

• kernel: wifi: mac80211: remove station if connection prep fails (CVE-2026-46125)

• kernel: exit: prevent preemption of oopsing TASK_DEAD task (CVE-2026-46173)

• kernel: wifi: mac80211: use safe list iteration in radar detect work (CVE-2026-46166)

• kernel: nvmet-tcp: fix race between ICReq handling and queue teardown (CVE-2026-46135)

Bug Fix(es) and Enhancement(s):

• Rocky Linux9.4 - s390/ap: Expose apbindingscomplete_count counter via sysfs [rhel-9.8.z] (JIRA:Rocky Linux-166048)

• [Rocky Linux 9.8] Hung tasks during both suspend and hibernate operations on systems with Intel E810 NICs [rhel-9.8.z] (JIRA:Rocky Linux-175699)

• DPLL: Add support for pin operational state [rhel-9.8.z] (JIRA:Rocky Linux-175820)

• DPLL: Add support for fractional frequency offset between pin and device [rhel-9.8.z] (JIRA:Rocky Linux-175823)

• ibmveth Adapter Freeze with Small MSS [rhel-9.8.z] (JIRA:Rocky Linux-178308)

• Rocky Linux9.4 - s390/mm: Add missing secure storage access fixups [rhel-9.8.z] (JIRA:Rocky Linux-183317)

• rbd: eliminate a race in lock_dwork draining on unmap [rhel-9.8.z] (JIRA:Rocky Linux-183130)

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.