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ALSA-2026:75746 — Important: kernel-rt security, bug fix, and enhancement update

2026-10-06T13:06:46.016659+00:00

Affected: AlmaLinux:8: kernel-rt, AlmaLinux:8: kernel-rt-core, AlmaLinux:8: kernel-rt-debug, AlmaLinux:8: kernel-rt-debug-core, AlmaLinux:8: kernel-rt-debug-devel, AlmaLinux:8: kernel-rt-debug-modules, AlmaLinux:8: kernel-rt-debug-modules-extra, AlmaLinux:8: kernel-rt-devel, AlmaLinux:8: kernel-rt-modules, AlmaLinux:8: kernel-rt-modules-extra

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

* kernel: Linux kernel: Use-after-free in xc5000 tuner driver due to race condition (CVE-2025-39994) * kernel: gfs2: Fix unlikely race in gdlm_put_lock (CVE-2025-40242) * kernel: Linux kernel: Denial of Service in RDMA/bnxt_re driver due to race condition during QP destruction (CVE-2023-54048) * kernel: nvme-pci: fix mempool alloc size (CVE-2022-50756) * kernel: Linux kernel: Denial of Service in QFQ scheduler via child qlen manipulation (CVE-2026-23105) * kernel: RDMA/uverbs: Validate wqe_size before using it in ib_uverbs_post_send (CVE-2026-45856) * kernel: gfs2: Fix slab-use-after-free in qd_put (CVE-2026-45861) * kernel: net/sched: act_ct: Only release RCU read lock after ct_ft (CVE-2026-46319) * kernel: gfs2: add some missing log locking (CVE-2026-53049) * kernel: crypto: af_alg - Cap AEAD AD length to 0x80000000 (CVE-2026-52972) * kernel: net/mlx5: Fix slab-out-of-bounds in mlx5_query_nic_vport_mac_list (CVE-2026-53230) * kernel: ipvs: clear the svc scheduler ptr early on edit (CVE-2026-53270) * kernel: net: ip_gre: require CAP_NET_ADMIN in the device netns for changelink (CVE-2026-63829) * kernel: KVM: SVM: Fix page overflow in sev_dbg_crypt() for ENCRYPT path (CVE-2026-63794) * kernel: tunnels: do not assume transport header in iptunnel_pmtud_check_icmp() (CVE-2026-63992)…

BELL-CVE-2026-90227

2026-10-06T13:06:46.016789+00:00

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

certfr-2026-avi-1253 — De multiples vulnérabilités ont été découvertes dans le noyau Linux de Debian. Certaines d'entre elles permettent à un…

2026-10-06T13:06:46.016827+00:00

certfr-2026-avi-1253

EUVD-2026-372100

2026-10-06T13:06:46.016852+00:00

EUVD-2026-372100

fkie_cve-2026-90227

2026-10-06T13:06:46.016869+00:00

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

nvme/ioctl: check SUBMIT_IO with nvme_cmd_allowed()

Unlike IO_CMD / IO64_CMD, NVME_IOCTL_SUBMIT_IO never calls nvme_cmd_allowed(). Unprivileged callers can thus issue I/O on a partition device or write through a read-only file descriptor.

Pass flags and open_for_write through and reject disallowed commands with -EACCES.

GHSA-g7gf-5v23-7wc5

2026-10-06T13:06:46.016907+00:00

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

nvme/ioctl: check SUBMIT_IO with nvme_cmd_allowed()

Unlike IO_CMD / IO64_CMD, NVME_IOCTL_SUBMIT_IO never calls nvme_cmd_allowed(). Unprivileged callers can thus issue I/O on a partition device or write through a read-only file descriptor.

Pass flags and open_for_write through and reject disallowed commands with -EACCES.

msrc_CVE-2026-90227 — nvme/ioctl: check SUBMIT_IO with nvme_cmd_allowed()

2026-10-06T13:06:46.016934+00:00

msrc_CVE-2026-90227

openSUSE-SU-2026:11880-1 — kernel-devel-7.2.7-1.1 on GA media

2026-10-06T13:06:46.016958+00:00

kernel-devel-7.2.7-1.1 on GA media

RHSA-2026:75746 — Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update

2026-10-06T13:06:46.017590+00:00

kernel: nvme-pci: fix mempool alloc size kernel: Linux kernel: Denial of Service in RDMA/bnxt_re driver due to race condition during QP destruction kernel: Linux kernel: Use-after-free in xc5000 tuner driver due to race condition kernel: gfs2: Fix unlikely race in gdlm_put_lock kernel: Linux kernel: Denial of Service in QFQ scheduler via child qlen manipulation kernel: RDMA/uverbs: Validate wqe_size before using it in ib_uverbs_post_send kernel: gfs2: Fix slab-use-after-free in qd_put kernel: net/sched: act_ct: Only release RCU read lock after ct_ft kernel: crypto: af_alg - Cap AEAD AD length to 0x80000000 kernel: gfs2: add some missing log locking kernel: net/mlx5: Fix slab-out-of-bounds in mlx5_query_nic_vport_mac_list kernel: ipvs: clear the svc scheduler ptr early on edit kernel: KVM: SVM: Fix page overflow in sev_dbg_crypt() for ENCRYPT path kernel: net: ip_gre: require CAP_NET_ADMIN in the device netns for changelink kernel: tunnels: do not assume transport header in iptunnel_pmtud_check_icmp() kernel: tunnels: load network headers after skb_cow() in iptunnel_pmtud_build_icmp[v6]() kernel: vxlan: require CAP_NET_ADMIN in the device netns for changelink kernel: net: ip6_gre: require CAP_NET_ADMIN in the device netns for changelink kernel: netfilter: nf_queue: pin bridge device while NFQUEUE holds fake dst kernel: KVM: SVM: Update x2APIC MSR intercepts if AVIC is inhibited while L2 is active kernel: netfilter: nf_conntrack_sip: widen NAT rewrite delta to s32 in sip_help_…

RLSA-2026:75746 — Important: kernel-rt security, bug fix, and enhancement update

2026-10-06T13:06:46.017679+00:00

Affected: Rocky Linux:8: kernel-rt

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

* kernel: Linux kernel: Use-after-free in xc5000 tuner driver due to race condition (CVE-2025-39994)

* kernel: gfs2: Fix unlikely race in gdlm_put_lock (CVE-2025-40242)

* kernel: Linux kernel: Denial of Service in RDMA/bnxt_re driver due to race condition during QP destruction (CVE-2023-54048)

* kernel: nvme-pci: fix mempool alloc size (CVE-2022-50756)

* kernel: Linux kernel: Denial of Service in QFQ scheduler via child qlen manipulation (CVE-2026-23105)

* kernel: RDMA/uverbs: Validate wqe_size before using it in ib_uverbs_post_send (CVE-2026-45856)

* kernel: gfs2: Fix slab-use-after-free in qd_put (CVE-2026-45861)

* kernel: net/sched: act_ct: Only release RCU read lock after ct_ft (CVE-2026-46319)

* kernel: gfs2: add some missing log locking (CVE-2026-53049)

* kernel: crypto: af_alg - Cap AEAD AD length to 0x80000000 (CVE-2026-52972)

* kernel: net/mlx5: Fix slab-out-of-bounds in mlx5_query_nic_vport_mac_list (CVE-2026-53230)

* kernel: ipvs: clear the svc scheduler ptr early on edit (CVE-2026-53270)

* kernel: net: ip_gre: require CAP_NET_ADMIN in the device netns for changelink (CVE-2026-63829)

* kernel: KVM: SVM: Fix page overflow in sev_dbg_crypt() for ENCRYPT path (CVE-2026-63794)

* kernel: tunnels: do not assume transport header in iptunnel_pmtud_check_icmp() (CVE-2026-63992)

* kernel: tunnels: l…

UBUNTU-CVE-2026-90227

2026-10-06T13:06:46.017758+00:00

Affected: Ubuntu:Pro:14.04:LTS: linux, Ubuntu:Pro:14.04:LTS: linux-aws, Ubuntu:Pro:14.04:LTS: linux-azure, Ubuntu:Pro:14.04:LTS: linux-lts-xenial, Ubuntu:Pro:16.04:LTS: linux, Ubuntu:Pro:16.04:LTS: linux-aws, Ubuntu:Pro:16.04:LTS: linux-aws-hwe, Ubuntu:Pro:16.04:LTS: linux-azure, Ubuntu:Pro:16.04:LTS: linux-gcp, Ubuntu:Pro:16.04:LTS: linux-hwe and 247 more

In the Linux kernel, the following vulnerability has been resolved: nvme/ioctl: check SUBMIT_IO with nvme_cmd_allowed() Unlike IO_CMD / IO64_CMD, NVME_IOCTL_SUBMIT_IO never calls nvme_cmd_allowed(). Unprivileged callers can thus issue I/O on a partition device or write through a read-only file descriptor. Pass flags and open_for_write through and reject disallowed commands with -EACCES.

WID-SEC-W-2026-3444 — Linux Kernel: Mehrere Schwachstellen

2026-10-06T13:06:46.018226+00:00

Ein Angreifer kann mehrere Schwachstellen im Linux Kernel möglicherweise ausnutzen, um Berechtigungen zu erweitern, Sicherheitsmaßnahmen zu umgehen, Daten offenzulegen oder zu manipulieren, den Speicher zu beschädigen, Denial-of-Service-Zustände zu verursachen oder andere, nicht näher spezifizierte Angriffe durchzuführen.