CVE-2026-98466

KVM: arm64: Transfer the hyp stack pages out of the host stage-2

CVE-2026-98466 is fixed in 94 products on 1 platform, first by DEBIAN-CVE-2026-98466, released October 19, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
9.8
Important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0017
6th percentile

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: sctp: stream: fully roll back denied add-stream state (CVE-2026-52929) * kernel: ipv6: sit: reload inner IPv6 header after GSO offloads (CVE-2026-53228) * kernel: ipvs: clear the svc scheduler ptr early on edit (CVE-2026-53270) * kernel: spi: fsl-lpspi: terminate the RX channel on TX prepare failure path (CVE-2026-64303) * kernel: mptcp: pm: userspace: fix use-after-free in get_local_id (CVE-2026-68169) * kernel: scsi: target: core: Fix iSCSI ISID use-after-free in REGISTER AND MOVE (CVE-2026-72083) * kernel: tipc: require net admin for TIPCv2 netlink mutators (CVE-2026-74283) * kernel: Bluetooth: mgmt: fix UAF in pair command cancellation (CVE-2026-74510) * kernel: packet: use consistent hard_header_len in non-ring send paths (CVE-2026-74582) * kernel: mptcp: options: reset DSS fields in case of unexpected size (CVE-2026-80586) * kernel: entry: Fix seccomp bypass after ptrace with TSYNC (CVE-2026-89603) * kernel: scsi: target: iscsi: Reserve a terminator byte for the login payload (CVE-2026-90011) * kernel: virtio-fs: avoid double-free on failed queue setup (CVE-2026-93827) * kernel: smb: client: bound dirent name against end of SMB response in cifs_filldir (CVE-2026-93787) * kernel: xfrm: hold net_device reference under RCU in bundle creation (CVE-2026-98364) * kernel: ipv4: free inet_opt and ireq_opt after an RCU grace period (CVE-2026-98432) * kernel: KVM: arm64: Transfer the hyp stack pages out of the host stage-2 (CVE-2026-98466) * kernel: nvmet-auth: fix out-of-bounds write in nvmet_auth_challenge() (CVE-2026-98725) * kernel: ZDI-CAN-33367: Linux Kernel skbuff skb_zerocopy Improper Ownership Management Local Privilege Escalation Vulnerability () Bug Fix(es) and Enhancement(s): * kernel panic in percpu_counter_add_batch() via submit_bio_noacct() due to NULL pointer (JIRA:RHEL-250378) * ipv4: ip_gre: make ipgre_header() robust (rhel-9.8.z) (JIRA:RHEL-271127) * ip6_gre: make ip6gre_header() robust (rhel-9.8.z) (JIRA:RHEL-271130) * Backport "sched: The newidle balance regression" series to rhel 9.8 [rhel-9.8.z] (JIRA:RHEL-288067) * RHEL is missing support for conntrack zone filtering in dump/delete requests (9.10) [rhel-9.8.z] (JIRA:RHEL-291352) 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.

Where it's fixed

ProductFixed inFixReleased
Linux
bpftool6.18 · amzn 2023 1:6.18.56-125.164.amzn2023 ALAS2023-2026-3251 Nov 7, 2026
bpftool6.18-debuginfo · amzn 2023 1:6.18.56-125.164.amzn2023 ALAS2023-2026-3251 Nov 7, 2026
kernel · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
kernel · rocky 9 0:5.14.0-687.64.1.el9_8 RLSA-2026:93412 Nov 7, 2026
kernel-64k · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-64k-core · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-64k-debug · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-64k-debug-core · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-64k-debug-devel · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-64k-debug-devel-matched · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-64k-debug-modules · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-64k-debug-modules-core · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-64k-debug-modules-extra · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-64k-devel · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-64k-devel-matched · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-64k-modules · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-64k-modules-core · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-64k-modules-extra · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-abi-stablelists · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-abi-stablelists · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
kernel-core · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-core · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
kernel-cross-headers · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
kernel-debug · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-debug · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
kernel-debug-core · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-debug-core · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
kernel-debug-devel · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-debug-devel · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
kernel-debug-devel-matched · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-debug-devel-matched · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
kernel-debug-modules · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-debug-modules · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
kernel-debug-modules-core · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-debug-modules-core · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
kernel-debug-modules-extra · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-debug-modules-extra · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
kernel-debug-uki-virt · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-debug-uki-virt · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
kernel-devel · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-devel · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
kernel-devel-matched · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-devel-matched · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
kernel-doc · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-doc · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
kernel-headers · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
kernel-livepatch-6.18.56-125.164 · amzn 2023 1:1.0-0.amzn2023 ALAS2023-2026-3251 Nov 7, 2026
kernel-modules · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-modules · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
kernel-modules-core · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-modules-core · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
kernel-modules-extra · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-modules-extra · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
kernel-rt · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-rt-64k · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-rt-64k-core · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-rt-64k-debug · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-rt-64k-debug-core · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-rt-64k-debug-devel · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-rt-64k-debug-modules · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-rt-64k-debug-modules-core · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-rt-64k-debug-modules-extra · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-rt-64k-devel · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-rt-64k-modules · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-rt-64k-modules-core · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-rt-64k-modules-extra · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-rt-core · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-rt-debug · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-rt-debug-core · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-rt-debug-devel · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-rt-debug-modules · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-rt-debug-modules-core · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-rt-debug-modules-extra · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-rt-devel · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-rt-modules · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-rt-modules-core · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-rt-modules-extra · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-tools · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-tools · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
kernel-tools-libs · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-tools-libs · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
kernel-tools-libs-devel · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-tools-libs-devel · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
kernel-uki-virt · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-uki-virt · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
kernel-uki-virt-addons · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-uki-virt-addons · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
kernel-zfcpdump · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-zfcpdump-core · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-zfcpdump-devel · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-zfcpdump-devel-matched · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-zfcpdump-modules · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-zfcpdump-modules-core · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel-zfcpdump-modules-extra · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
kernel6.18 · amzn 2023 1:6.18.56-125.164.amzn2023 ALAS2023-2026-3251 Nov 7, 2026
kernel6.18-debuginfo · amzn 2023 1:6.18.56-125.164.amzn2023 ALAS2023-2026-3251 Nov 7, 2026
kernel6.18-debuginfo-common-aarch64 · amzn 2023 1:6.18.56-125.164.amzn2023 ALAS2023-2026-3251 Nov 7, 2026
kernel6.18-debuginfo-common-x86_64 · amzn 2023 1:6.18.56-125.164.amzn2023 ALAS2023-2026-3251 Nov 7, 2026
kernel6.18-devel · amzn 2023 1:6.18.56-125.164.amzn2023 ALAS2023-2026-3251 Nov 7, 2026
kernel6.18-headers · amzn 2023 1:6.18.56-125.164.amzn2023 ALAS2023-2026-3251 Nov 7, 2026
kernel6.18-modules-extra · amzn 2023 1:6.18.56-125.164.amzn2023 ALAS2023-2026-3251 Nov 7, 2026
kernel6.18-modules-extra-common · amzn 2023 1:6.18.56-125.164.amzn2023 ALAS2023-2026-3251 Nov 7, 2026
kernel6.18-tools · amzn 2023 1:6.18.56-125.164.amzn2023 ALAS2023-2026-3251 Nov 7, 2026
kernel6.18-tools-debuginfo · amzn 2023 1:6.18.56-125.164.amzn2023 ALAS2023-2026-3251 Nov 7, 2026
kernel6.18-tools-devel · amzn 2023 1:6.18.56-125.164.amzn2023 ALAS2023-2026-3251 Nov 7, 2026
libperf · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
libperf · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
linux · Debian 14 7.2.9-1 DEBIAN-CVE-2026-98466 Oct 19, 2026
microvm-kernel6.18 · amzn 2023 1:6.18.56-125.164.amzn2023 ALAS2023-2026-3251 Nov 7, 2026
perf · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
perf · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
perf6.18 · amzn 2023 1:6.18.56-125.164.amzn2023 ALAS2023-2026-3251 Nov 7, 2026
perf6.18-debuginfo · amzn 2023 1:6.18.56-125.164.amzn2023 ALAS2023-2026-3251 Nov 7, 2026
python3-perf · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
python3-perf · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
python3-perf6.18 · amzn 2023 1:6.18.56-125.164.amzn2023 ALAS2023-2026-3251 Nov 7, 2026
python3-perf6.18-debuginfo · amzn 2023 1:6.18.56-125.164.amzn2023 ALAS2023-2026-3251 Nov 7, 2026
rtla · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
rtla · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026
rv · RHEL 9 0:5.14.0-687.64.1.el9_8 RHSA-2026:93412 Nov 3, 2026
rv · ol 9 0:5.14.0-687.64.1.el9_8 ELSA-2026-93412 Nov 7, 2026

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