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ALSA-2026:21706 — Important: kernel security update

Affected: AlmaLinux:8: bpftool, AlmaLinux:8: kernel, AlmaLinux:8: kernel-abi-stablelists, AlmaLinux:8: kernel-core, AlmaLinux:8: kernel-cross-headers, AlmaLinux:8: kernel-debug, AlmaLinux:8: kernel-debug-core, AlmaLinux:8: kernel-debug-devel, AlmaLinux:8: kernel-debug-modules, AlmaLinux:8: kernel-debug-modules-extra and 15 more

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

Security Fix(es):

* kernel: Bluetooth: MGMT: Fix possible UAFs (CVE-2025-39981) * kernel: ima: don't clear IMA_DIGSIG flag when setting or removing non-IMA xattr (CVE-2025-68183) * kernel: ALSA: firewire-motu: fix buffer overflow in hwdep read for DSP events (CVE-2025-68347) * kernel: libceph: make decode_pool() more resilient against corrupted osdmaps (CVE-2025-71116) * kernel: Linux kernel: Denial of service and memory corruption in RDMA umad (CVE-2026-23243) * kernel: Linux kernel: Use-after-free in traffic control (act_ct) may lead to denial of service or privilege escalation (CVE-2026-23270) * kernel: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() (CVE-2026-23455) * kernel: Bluetooth: SCO: Fix use-after-free in sco_recv_frame() due to missing sock_hold (CVE-2026-31408) * kernel: can: raw: fix ro->uniq use-after-free in raw_rcv() (CVE-2026-31532) * kernel: net: sched: act_csum: validate nested VLAN headers (CVE-2026-31684) * kernel: netfilter: ip6t_eui64: reject invalid MAC header for all packets (CVE-2026-31685) * kernel: netfilter: nf_conntrack_helper: pass helper to expect cleanup (CVE-2026-43027) * kernel: Bluetooth: MGMT: validate LTK enc_size on load (CVE-2026-43020) * kernel: HID: wacom: fix out-of-bounds read in wacom_intuos_bt_irq (CVE-2026-43051) * kernel: smb: client: validate the whole DACL before rewriting it in cifsa…

bdu:2026-01161

BELL-CVE-2025-68347

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

certfr-2026-avi-0108 — De multiples vulnérabilités ont été découvertes dans le noyau Linux de SUSE. Certaines d'entre elles permettent à un at…

certfr-2026-avi-0108

EUVD-2026-347493

fkie_cve-2025-68347

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

ALSA: firewire-motu: fix buffer overflow in hwdep read for DSP events

The DSP event handling code in hwdep_read() could write more bytes to the user buffer than requested, when a user provides a buffer smaller than the event header size (8 bytes).

Fix by using min_t() to clamp the copy size, This ensures we never copy more than the user requested.

GHSA-h6xr-332m-px9v

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

ALSA: firewire-motu: fix buffer overflow in hwdep read for DSP events

The DSP event handling code in hwdep_read() could write more bytes to the user buffer than requested, when a user provides a buffer smaller than the event header size (8 bytes).

Fix by using min_t() to clamp the copy size, This ensures we never copy more than the user requested.

msrc_CVE-2025-68347 — ALSA: firewire-motu: fix buffer overflow in hwdep read for DSP events

msrc_CVE-2025-68347

openSUSE-SU-2026:10039-1 — kernel-devel-6.18.5-1.1 on GA media

kernel-devel-6.18.5-1.1 on GA media

RHSA-2026:21745 — Red Hat Security Advisory: kernel-rt security update

kernel: Bluetooth: MGMT: Fix possible UAFs kernel: ima: don't clear IMA_DIGSIG flag when setting or removing non-IMA xattr kernel: ALSA: firewire-motu: fix buffer overflow in hwdep read for DSP events kernel: libceph: make decode_pool() more resilient against corrupted osdmaps kernel: Linux kernel: Denial of service and memory corruption in RDMA umad kernel: Linux kernel: Use-after-free in traffic control (act_ct) may lead to denial of service or privilege escalation kernel: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() kernel: Bluetooth: SCO: Fix use-after-free in sco_recv_frame() due to missing sock_hold kernel: can: raw: fix ro->uniq use-after-free in raw_rcv() kernel: net: sched: act_csum: validate nested VLAN headers kernel: netfilter: ip6t_eui64: reject invalid MAC header for all packets kernel: smb: client: validate the whole DACL before rewriting it in cifsacl kernel: Bluetooth: MGMT: validate LTK enc_size on load kernel: netfilter: nf_conntrack_helper: pass helper to expect cleanup kernel: HID: wacom: fix out-of-bounds read in wacom_intuos_bt_irq kernel: xfs: fix freemap adjustments when adding xattrs to leaf blocks kernel: md/bitmap: fix GPF in write_page caused by resize race kernel: netfilter: xt_tcpmss: check remaining length before reading optlen kernel: smb: client: validate dacloffset before building DACL pointers

RLSA-2026:21706 — Important: kernel security update

Affected: Rocky Linux:8: kernel

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

Security Fix(es):

* kernel: Bluetooth: MGMT: Fix possible UAFs (CVE-2025-39981)

* kernel: ima: don't clear IMA_DIGSIG flag when setting or removing non-IMA xattr (CVE-2025-68183)

* kernel: ALSA: firewire-motu: fix buffer overflow in hwdep read for DSP events (CVE-2025-68347)

* kernel: libceph: make decode_pool() more resilient against corrupted osdmaps (CVE-2025-71116)

* kernel: Linux kernel: Denial of service and memory corruption in RDMA umad (CVE-2026-23243)

* kernel: Linux kernel: Use-after-free in traffic control (act_ct) may lead to denial of service or privilege escalation (CVE-2026-23270)

* kernel: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() (CVE-2026-23455)

* kernel: Bluetooth: SCO: Fix use-after-free in sco_recv_frame() due to missing sock_hold (CVE-2026-31408)

* kernel: can: raw: fix ro->uniq use-after-free in raw_rcv() (CVE-2026-31532)

* kernel: net: sched: act_csum: validate nested VLAN headers (CVE-2026-31684)

* kernel: netfilter: ip6t_eui64: reject invalid MAC header for all packets (CVE-2026-31685)

* kernel: netfilter: nf_conntrack_helper: pass helper to expect cleanup (CVE-2026-43027)

* kernel: Bluetooth: MGMT: validate LTK enc_size on load (CVE-2026-43020)

* kernel: HID: wacom: fix out-of-bounds read in wacom_intuos_bt_irq (CVE-2026-43051)

* kernel: smb: client: validate the whole DACL before rewriting it in cifsacl (CVE-2026-31709)…

SUSE-SU-2026:0278-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

UBUNTU-CVE-2025-68347

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 140 more

In the Linux kernel, the following vulnerability has been resolved: ALSA: firewire-motu: fix buffer overflow in hwdep read for DSP events The DSP event handling code in hwdep_read() could write more bytes to the user buffer than requested, when a user provides a buffer smaller than the event header size (8 bytes). Fix by using min_t() to clamp the copy size, This ensures we never copy more than the user requested.

WID-SEC-W-2025-2920 — Linux Kernel: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen im Linux-Kernel ausnutzen, um nicht näher spezifizierte Angriffe durchzuführen, die möglicherweise zu einer Denial-of-Service- Bedingung führen oder eine Speicherbeschädigung verursachen können.