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ALSA-2026:70459 — Important: kernel security, bug fix, and enhancement update

2026-10-03T20:46:51.159358+00:00

Affected: AlmaLinux:9: kernel, AlmaLinux:9: kernel-64k, AlmaLinux:9: kernel-64k-core, AlmaLinux:9: kernel-64k-debug, AlmaLinux:9: kernel-64k-debug-core, AlmaLinux:9: kernel-64k-debug-devel, AlmaLinux:9: kernel-64k-debug-devel-matched, AlmaLinux:9: kernel-64k-debug-modules, AlmaLinux:9: kernel-64k-debug-modules-core, AlmaLinux:9: kernel-64k-debug-modules-extra and 64 more

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

Security Fix(es):

* kernel: crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg (CVE-2025-39964) * kernel: iommu/vt-d: Clear Present bit before tearing down PASID entry (CVE-2026-45894) * kernel: crypto: ccp - Fix a crash due to incorrect cleanup usage of kfree (CVE-2026-45959) * kernel: dm cache policy smq: fix missing locks in invalidating cache blocks (CVE-2026-53062) * kernel: keys: Pin request_key_auth payload in instantiate paths (CVE-2026-63823) * kernel: net/mlx5: Fix MCIA register buffer overflow on 32 dword reads (CVE-2026-68293) * kernel: Linux kernel: libceph null pointer dereference leads to denial of service (CVE-2026-68157) * kernel: Linux kernel Bluetooth RFCOMM: Denial of Service via use-after-free in set_termios (CVE-2026-68188) * kernel: libceph: refresh auth->authorizer_buf{,_len} after authorizer update (CVE-2026-68156) * kernel: Linux kernel (libceph): Denial of Service due to malformed monitor maps (CVE-2026-68155) * kernel: Bluetooth: mgmt: hold reference for hci_conn in mgmt_pending_cmds (CVE-2026-68391) * kernel: net/mlx5e: macsec: fix use-after-free of metadata_dst on RX SC delete (CVE-2026-72072) * kernel: mm/hugetlb: fix list corruption in allocate_file_region_entries() (CVE-2026-74518)

Bug Fix(es) and Enhancement(s):

* [Intel 9.8 FEAT] ice: Driver Update [almalinux-9.8.z] (JIRA:AlmaLinux-213003) * AlmaLinux 9.8…

BELL-CVE-2026-68391

2026-10-03T20:46:51.159545+00:00

Affected: Alpaquita:23: linux-lts, Alpaquita:25: linux-lts, Alpaquita:stream: linux-lts

certfr-2026-avi-1069 — De multiples vulnérabilités ont été découvertes dans le noyau Linux de Debian LTS. Elles permettent à un attaquant de p…

2026-10-03T20:46:51.159574+00:00

certfr-2026-avi-1069

EUVD-2026-353587

2026-10-03T20:46:51.159593+00:00

EUVD-2026-353587

fkie_cve-2026-68391

2026-10-03T20:46:51.159605+00:00

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

Bluetooth: mgmt: hold reference for hci_conn in mgmt_pending_cmds

Dereferencing RCU-protected pointers outside critical sections is invalid and may lead to UAF. Use of hci_conn in hci_sync callbacks also needs to hold refcount to avoid UAF.

Take appropriate locks for hci_conn lookups, and take refcount for hci_conn pointers stored in mgmt_pending_cmd so that the pointer stays valid.

When accessing conn->state, ensure hdev->lock is held to avoid data race.

GHSA-r93r-qrfp-h69j

2026-10-03T20:46:51.159633+00:00

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

Bluetooth: mgmt: hold reference for hci_conn in mgmt_pending_cmds

Dereferencing RCU-protected pointers outside critical sections is invalid and may lead to UAF. Use of hci_conn in hci_sync callbacks also needs to hold refcount to avoid UAF.

Take appropriate locks for hci_conn lookups, and take refcount for hci_conn pointers stored in mgmt_pending_cmd so that the pointer stays valid.

When accessing conn->state, ensure hdev->lock is held to avoid data race.

msrc_CVE-2026-68391 — Bluetooth: mgmt: hold reference for hci_conn in mgmt_pending_cmds

2026-10-03T20:46:51.159652+00:00

msrc_CVE-2026-68391

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

2026-10-03T20:46:51.159669+00:00

Security update for the Linux Kernel

RHSA-2026:70498 — Red Hat Security Advisory: kernel security, bug fix, and enhancement update

2026-10-03T20:46:51.160177+00:00

kernel: crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg kernel: iommu/vt-d: Clear Present bit before tearing down PASID entry kernel: crypto: ccp - Fix a crash due to incorrect cleanup usage of kfree kernel: dm cache policy smq: fix missing locks in invalidating cache blocks kernel: keys: Pin request_key_auth payload in instantiate paths kernel: nvmet-tcp: check INIT_FAILED before nvmet_req_uninit in digest error path kernel: Linux kernel (libceph): Denial of Service due to malformed monitor maps kernel: Linux kernel: libceph stack out-of-bounds write via crafted OSDMap kernel: Linux kernel Bluetooth RFCOMM: Denial of Service via use-after-free in set_termios kernel: net/mlx5: Fix MCIA register buffer overflow on 32 dword reads kernel: Bluetooth: mgmt: hold reference for hci_conn in mgmt_pending_cmds kernel: mm/hugetlb: fix list corruption in allocate_file_region_entries()

RLSA-2026:70459 — Important: kernel security, bug fix, and enhancement update

2026-10-03T20:46:51.160215+00:00

Affected: Rocky Linux:9: kernel

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

Security Fix(es):

* kernel: crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg (CVE-2025-39964)

* kernel: iommu/vt-d: Clear Present bit before tearing down PASID entry (CVE-2026-45894)

* kernel: crypto: ccp - Fix a crash due to incorrect cleanup usage of kfree (CVE-2026-45959)

* kernel: dm cache policy smq: fix missing locks in invalidating cache blocks (CVE-2026-53062)

* kernel: keys: Pin request_key_auth payload in instantiate paths (CVE-2026-63823)

* kernel: net/mlx5: Fix MCIA register buffer overflow on 32 dword reads (CVE-2026-68293)

* kernel: Linux kernel: libceph null pointer dereference leads to denial of service (CVE-2026-68157)

* kernel: Linux kernel Bluetooth RFCOMM: Denial of Service via use-after-free in set_termios (CVE-2026-68188)

* kernel: libceph: refresh auth->authorizer_buf{,_len} after authorizer update (CVE-2026-68156)

* kernel: Linux kernel (libceph): Denial of Service due to malformed monitor maps (CVE-2026-68155)

* kernel: Bluetooth: mgmt: hold reference for hci_conn in mgmt_pending_cmds (CVE-2026-68391)

* kernel: net/mlx5e: macsec: fix use-after-free of metadata_dst on RX SC delete (CVE-2026-72072)

* kernel: mm/hugetlb: fix list corruption in allocate_file_region_entries() (CVE-2026-74518)

Bug Fix(es) and Enhancement(s):

* [Intel 9.8 FEAT] ice: Driver Update [rhel-9.8.z] (JIRA:Rocky Linux-213003)

* Rocky Linux 9.8: Multiuser Kerberized DF…

SUSE-SU-2026:23477-1 — Security update for the Linux Kernel

2026-10-03T20:46:51.160266+00:00

Security update for the Linux Kernel

UBUNTU-CVE-2026-68391

2026-10-03T20:46:51.160587+00:00

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 154 more

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: mgmt: hold reference for hci_conn in mgmt_pending_cmds Dereferencing RCU-protected pointers outside critical sections is invalid and may lead to UAF. Use of hci_conn in hci_sync callbacks also needs to hold refcount to avoid UAF. Take appropriate locks for hci_conn lookups, and take refcount for hci_conn pointers stored in mgmt_pending_cmd so that the pointer stays valid. When accessing conn->state, ensure hdev->lock is held to avoid data race.

WID-SEC-W-2026-2730 — Linux Kernel: Mehrere Schwachstellen

2026-10-03T20:46:51.160776+00:00

Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen, darunter möglicherweise die Ausführung von beliebigem Code, die Ausweitung von Berechtigungen, die Offenlegung von Informationen, die Manipulation von Daten oder Denial-of-Service-Zustände.