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ALSA-2026:25217 — Important: kernel security update

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: scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count() (CVE-2026-23216) * kernel: Linux kernel: Use-after-free in bonding driver leads to denial of service (CVE-2026-31419) * kernel: net: openvswitch: Avoid releasing netdev before teardown completes (CVE-2026-31508) * kernel: ALSA: 6fire: fix use-after-free on disconnect (CVE-2026-31581) * kernel: ip6_tunnel: clear skb2->cb[] in ip4ip6_err() (CVE-2026-43037) * kernel: net: mana: fix use-after-free in add_adev() error path (CVE-2026-43056) * kernel: netfilter: ctnetlink: ensure safe access to master conntrack (CVE-2026-43116) * kernel: dlm: validate length in dlm_search_rsb_tree (CVE-2026-43125) * kernel: ipv6: rpl: reserve mac_len headroom when recompressed SRH grows (CVE-2026-43501) * kernel: RDMA/rxe: Fix double free in rxe_srq_from_init (CVE-2026-45852) * kernel: RDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event() (CVE-2026-46181)

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.

bdu:2026-07836

BELL-CVE-2026-43056

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

certfr-2026-avi-0747 — De multiples vulnérabilités ont été découvertes dans le noyau Linux de Red Hat. Certaines d'entre elles permettent à un…

certfr-2026-avi-0747

EUVD-2026-347813

fkie_cve-2026-43056

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

net: mana: fix use-after-free in add_adev() error path

If auxiliary_device_add() fails, add_adev() jumps to add_fail and calls auxiliary_device_uninit(adev).

The auxiliary device has its release callback set to adev_release(), which frees the containing struct mana_adev. Since adev is embedded in struct mana_adev, the subsequent fall-through to init_fail and access to adev->id may result in a use-after-free.

Fix this by saving the allocated auxiliary device id in a local variable before calling auxiliary_device_add(), and use that saved id in the cleanup path after auxiliary_device_uninit().

GHSA-cj6q-34vm-g3x7

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

net: mana: fix use-after-free in add_adev() error path

If auxiliary_device_add() fails, add_adev() jumps to add_fail and calls auxiliary_device_uninit(adev).

Fix this by saving the allocated auxiliary device id in a local variable before calling auxiliary_device_add(), and use that saved id in the cleanup path after auxiliary_device_uninit().

openSUSE-SU-2026:21555-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

RHSA-2026:27354 — Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update

kernel: Linux kernel: Use-after-free in bonding driver leads to denial of service kernel: drm/amd/display: Do not skip unrelated mode changes in DSC validation kernel: net: mana: fix use-after-free in add_adev() error path kernel: ALSA: usb-audio: Add sanity check for OOB writes at silencing kernel: ALSA: aloop: Fix peer runtime UAF during format-change stop kernel: nvmet-tcp: fix race between ICReq handling and queue teardown kernel: RDMA/mana: Validate rx_hash_key_len kernel: net/sched: act_pedit: extend the writable skb range per key

RLSA-2026:25217 — Important: kernel security update

Affected: Rocky Linux:9: kernel

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

Security Fix(es):

* kernel: scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count() (CVE-2026-23216)

* kernel: Linux kernel: Use-after-free in bonding driver leads to denial of service (CVE-2026-31419)

* kernel: net: openvswitch: Avoid releasing netdev before teardown completes (CVE-2026-31508)

* kernel: ALSA: 6fire: fix use-after-free on disconnect (CVE-2026-31581)

* kernel: ip6_tunnel: clear skb2->cb[] in ip4ip6_err() (CVE-2026-43037)

* kernel: net: mana: fix use-after-free in add_adev() error path (CVE-2026-43056)

* kernel: netfilter: ctnetlink: ensure safe access to master conntrack (CVE-2026-43116)

* kernel: dlm: validate length in dlm_search_rsb_tree (CVE-2026-43125)

* kernel: ipv6: rpl: reserve mac_len headroom when recompressed SRH grows (CVE-2026-43501)

* kernel: RDMA/rxe: Fix double free in rxe_srq_from_init (CVE-2026-45852)

* kernel: RDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event() (CVE-2026-46181)

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.

SUSE-SU-2026:23066-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

UBUNTU-CVE-2026-43056

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 146 more

In the Linux kernel, the following vulnerability has been resolved: net: mana: fix use-after-free in add_adev() error path If auxiliary_device_add() fails, add_adev() jumps to add_fail and calls auxiliary_device_uninit(adev). The auxiliary device has its release callback set to adev_release(), which frees the containing struct mana_adev. Since adev is embedded in struct mana_adev, the subsequent fall-through to init_fail and access to adev->id may result in a use-after-free. Fix this by saving the allocated auxiliary device id in a local variable before calling auxiliary_device_add(), and use that saved id in the cleanup path after auxiliary_device_uninit().

WID-SEC-W-2026-1346 — Linux Kernel: Mehrere Schwachstellen

Ein entfernter Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um Root-Rechte zu erlangen, um Sicherheitsmechanismen zu umgehen, einen Denial-of-Service-Zustand herbeizuführen oder Auswirkungen unbestimmter Art zu erzielen.