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ALSA-2026:65334 — Important: kernel security, bug fix, and enhancement update

Affected: AlmaLinux:10: kernel, AlmaLinux:10: kernel-64k, AlmaLinux:10: kernel-64k-core, AlmaLinux:10: kernel-64k-debug, AlmaLinux:10: kernel-64k-debug-core, AlmaLinux:10: kernel-64k-debug-devel, AlmaLinux:10: kernel-64k-debug-devel-matched, AlmaLinux:10: kernel-64k-debug-modules, AlmaLinux:10: kernel-64k-debug-modules-core, AlmaLinux:10: kernel-64k-debug-modules-extra and 65 more

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) * kernel: Bluetooth: SMP: force responder MITM requirements before building the pairing response (CVE-2026-43334) * kernel: Bluetooth: virtio_bt: clamp rx length before skb_put (CVE-2026-46123) * kernel: Bluetooth: serialize accept_q access (CVE-2026-52918) * kernel: net: pull headers in qdisc_pkt_len_segs_init() (CVE-2026-53091) * kernel: Bluetooth: fix locking in hci_conn_request_evt() with HCI_PROTO_DEFER (CVE-2026-53072) * kernel: net: qrtr: fix refcount saturation and potential UAF in qrtr_port_remove (CVE-2026-52947) * kernel: Bluetooth: RFCOMM: hold listener socket in rfcomm_connect_ind() (CVE-2026-53256) * kernel: wifi: nl80211: reject oversized EMA RNR lists (CVE-2026-53182) * kernel: Bluetooth: hci_sync: reject oversized Broadcast Announcement prepend (CVE-2026-53209) * kernel: Bluetooth: RFCOMM: validate skb length in MCC handlers (CVE-2026-53254) * kernel: vfio/pci: Clean up DMABUFs before disabling function (CVE-2026-53322) * kernel: Bluetooth: L2CAP: Fix possible crash on l2cap_ecred_conn_rsp (CVE-2026-63975) * kernel: security/keys: fix missed RCU read section on lookup (CVE-2026-64015) * kernel: Bluetooth: HIDP: fix missing length checks in hidp_input_report() (CVE-2026-63947) * kernel: Bluetooth: hci_sync: fix UAF in hci_le_create_cis_sy…

BELL-CVE-2026-64515

Affected: Alpaquita:25: linux-lts, Alpaquita:stream: linux-lts

certfr-2026-avi-0954 — De multiples vulnérabilités ont été découvertes dans le noyau Linux d'Ubuntu. Certaines d'entre elles permettent à un a…

certfr-2026-avi-0954

fkie_cve-2026-64515

In the Linux kernel, the following vulnerability has been resolved:

wifi: mac80211: fix MLE defragmentation

If either reconf or EPCS multi-link element (MLE) is contained in a non-transmitted profile, the defragmentation routine is called with a pointer to the defragmented copy, but the original elements.

This is incorrect for two reasons: - if the original defragmentation was needed, it will not find the correct data - if the original frame is at a higher address, the parsing will potentially overrun the heap data (though given the layout of the buffers, only into the new defragmentation buffer, and then it has to stop and fail once that's filled with copied data.

Fix it by tracking the container along with the pointer and in doing so also unify the two almost identical defragmentation routines.

GHSA-x6wq-gx7f-g22h

In the Linux kernel, the following vulnerability has been resolved:

wifi: mac80211: fix MLE defragmentation

If either reconf or EPCS multi-link element (MLE) is contained in a non-transmitted profile, the defragmentation routine is called with a pointer to the defragmented copy, but the original elements.

Fix it by tracking the container along with the pointer and in doing so also unify the two almost identical defragmentation routines.

openSUSE-SU-2026:21910-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

RLSA-2026:65334 — Important: kernel security, bug fix, and enhancement update

Affected: Rocky Linux:10: kernel

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)

* kernel: Bluetooth: SMP: force responder MITM requirements before building the pairing response (CVE-2026-43334)

* kernel: Bluetooth: virtio_bt: clamp rx length before skb_put (CVE-2026-46123)

* kernel: Bluetooth: serialize accept_q access (CVE-2026-52918)

* kernel: net: pull headers in qdisc_pkt_len_segs_init() (CVE-2026-53091)

* kernel: Bluetooth: fix locking in hci_conn_request_evt() with HCI_PROTO_DEFER (CVE-2026-53072)

* kernel: net: qrtr: fix refcount saturation and potential UAF in qrtr_port_remove (CVE-2026-52947)

* kernel: Bluetooth: RFCOMM: hold listener socket in rfcomm_connect_ind() (CVE-2026-53256)

* kernel: wifi: nl80211: reject oversized EMA RNR lists (CVE-2026-53182)

* kernel: Bluetooth: hci_sync: reject oversized Broadcast Announcement prepend (CVE-2026-53209)

* kernel: Bluetooth: RFCOMM: validate skb length in MCC handlers (CVE-2026-53254)

* kernel: vfio/pci: Clean up DMABUFs before disabling function (CVE-2026-53322)

* kernel: Bluetooth: L2CAP: Fix possible crash on l2cap_ecred_conn_rsp (CVE-2026-63975)

* kernel: security/keys: fix missed RCU read section on lookup (CVE-2026-64015)

* kernel: Bluetooth: HIDP: fix missing length checks in hidp_input_report() (CVE-2026-63947)

* kernel: Bluetooth: hci_sync: fix UAF in hci_le_create_cis_sync (CVE-2026-63944)…

SUSE-SU-2026:23881-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

UBUNTU-CVE-2026-64515

Affected: Ubuntu:16.04:LTS: linux-hwe-edge, Ubuntu:18.04:LTS: linux-aws-5.0, Ubuntu:18.04:LTS: linux-aws-5.3, Ubuntu:18.04:LTS: linux-azure, Ubuntu:18.04:LTS: linux-azure-5.3, Ubuntu:18.04:LTS: linux-azure-edge, Ubuntu:18.04:LTS: linux-gcp, Ubuntu:18.04:LTS: linux-gcp-5.3, Ubuntu:18.04:LTS: linux-gke-4.15, Ubuntu:18.04:LTS: linux-gke-5.4 and 118 more

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix MLE defragmentation If either reconf or EPCS multi-link element (MLE) is contained in a non-transmitted profile, the defragmentation routine is called with a pointer to the defragmented copy, but the original elements. This is incorrect for two reasons: - if the original defragmentation was needed, it will not find the correct data - if the original frame is at a higher address, the parsing will potentially overrun the heap data (though given the layout of the buffers, only into the new defragmentation buffer, and then it has to stop and fail once that's filled with copied data. Fix it by tracking the container along with the pointer and in doing so also unify the two almost identical defragmentation routines.

WID-SEC-W-2026-2527 — Linux Kernel: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um nicht näher spezifizierte Angriffe durchzuführen, dazu können DoS-Angriffe, die Offenlegung von Informationen, die Beschädigung des Speichers oder die Umgehung von Sicherheitsmaßnahmen gehören.