Описание
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: KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation (CVE-2026-43133)
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kernel: ipv6: prevent possible UaF in addrconf_permanent_addr() (CVE-2026-43339)
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kernel: crypto: pcrypt - Fix handling of MAY_BACKLOG requests (CVE-2026-43493)
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kernel: tcp: call sk_data_ready() after listener migration (CVE-2026-46015)
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kernel: scsi: target: configfs: Bound snprintf() return in tg_pt_gp_members_show() (CVE-2026-46149)
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kernel: inet: RAW sockets using IPPROTO_RAW MUST drop incoming ICMP (CVE-2026-46266)
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kernel: flow_dissector: do not dissect PPPoE PFC frames (CVE-2026-46306)
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kernel: Revert "net/smc: Introduce TCP ULP support" (CVE-2026-46330)
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kernel: netfilter: conntrack: remove sprintf usage (CVE-2026-53002)
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kernel: net: guard timestamp cmsgs to real error queue skbs (CVE-2026-53223)
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kernel: ipv6: mcast: Fix use-after-free when processing MLD queries (CVE-2026-53275)
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kernel: ipv4: account for fraggap on the paged allocation path (CVE-2026-53366)
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kernel: net: mana: Fix TOCTOU double-fetch of hwc_msg_id from DMA buffer (CVE-2026-64034)
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kernel: rhashtable: clear stale iter->p on table restart (CVE-2026-64563)
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kernel: smb: client: fix double-free in SMB2_close() replay (CVE-2026-64597)
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kernel: nvmet-rdma: handle inline data with a nonzero offset (CVE-2026-72129)
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kernel: net: bridge: stop fast-leave after deleting a port group (CVE-2026-74480)
Bug Fix(es) and Enhancement(s):
- KSM to deduplicate only zero pages [rhel-9.8.z] (JIRA:Rocky Linux-249161)
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.
Затронутые продукты
Rocky Linux 9
Ссылки на источники
Исправления
- Red Hat - 2467065
- Red Hat - 2468102
- Red Hat - 2479812
- Red Hat - 2481936
- Red Hat - 2482566
- Red Hat - 2484456
- Red Hat - 2486463
- Red Hat - 2486999
- Red Hat - 2492329
- Red Hat - 2492811
- Red Hat - 2492841
- Red Hat - 2501252
- Red Hat - 2502394
- Red Hat - 2510892
- Red Hat - 2511932
- Red Hat - 2516731
- Red Hat - 2517046
Связанные уязвимости
ELSA-2026-66180-0: kernel security, bug fix, and enhancement update (IMPORTANT)
In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation Commit cc3ed80ae69f ("KVM: nSVM: always use vmcb01 to for vmsave/vmload of guest state") made KVM always use vmcb01 for the fields controlled by VMSAVE/VMLOAD, but it missed updating the VMLOAD/VMSAVE emulation code to always use vmcb01. As a result, if VMSAVE/VMLOAD is executed by an L2 guest and is not intercepted by L1, KVM will mistakenly use vmcb02. Always use vmcb01 instead of the current VMCB.
In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation Commit cc3ed80ae69f ("KVM: nSVM: always use vmcb01 to for vmsave/vmload of guest state") made KVM always use vmcb01 for the fields controlled by VMSAVE/VMLOAD, but it missed updating the VMLOAD/VMSAVE emulation code to always use vmcb01. As a result, if VMSAVE/VMLOAD is executed by an L2 guest and is not intercepted by L1, KVM will mistakenly use vmcb02. Always use vmcb01 instead of the current VMCB.
In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Always use vmcb01 in VMLOAD/VMSAVE emulation Commit cc3ed80ae69f ("KVM: nSVM: always use vmcb01 to for vmsave/vmload of guest state") made KVM always use vmcb01 for the fields controlled by VMSAVE/VMLOAD, but it missed updating the VMLOAD/VMSAVE emulation code to always use vmcb01. As a result, if VMSAVE/VMLOAD is executed by an L2 guest and is not intercepted by L1, KVM will mistakenly use vmcb02. Always use vmcb01 instead of the current VMCB.
In the Linux kernel, the following vulnerability has been resolved: K ...