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ALSA-2026:30848 — Important: kernel security, bug fix, and enhancement 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: drm/amd/display: Do not skip unrelated mode changes in DSC validation (CVE-2026-31488) * kernel: ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach() (CVE-2026-43038) * kernel: netfilter: flowtable: strictly check for maximum number of actions (CVE-2026-43329) * kernel: ALSA: aloop: Fix peer runtime UAF during format-change stop (CVE-2026-46090) * kernel: selinux: fix overlayfs mmap() and mprotect() access checks (CVE-2026-46054) * kernel: RDMA/iwcm: Fix workqueue list corruption by removing work_list (CVE-2026-45898) * kernel: RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path (CVE-2026-46189) * kernel: RDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init() (CVE-2026-46176) * kernel: KVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry (CVE-2026-46316)

Bug Fix(es) and Enhancement(s):

* [AlmaLinux-9.8.z]: Update the mlx5 drivers to v6.19 (JIRA:AlmaLinux-169057) * iavf: during POD churn vlan filters may not be added for a vlan interface, spoofchk drops subsequent packets [almalinux-9.8.z] (JIRA:AlmaLinux-172993) * nf_conntrack_sctp: vtag corruption with late INIT in ESTABLISHED state across conntrack zones [almalinux-9.8.z] (JIRA:AlmaLinux-178273) * sched/fair: Skip sched_balance_running cmpxchg when balance is not due [almalinux-9.8.z] (JIRA:AlmaLinux-182…

BELL-CVE-2026-46189

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

certfr-2026-avi-0731 — De multiples vulnérabilités ont été découvertes dans les produits Microsoft. Certaines d'entre elles permettent à un at…

certfr-2026-avi-0731

ESSA-2026:0165 — Important: kernel security, bug fix, and enhancement update

Important: kernel security, bug fix, and enhancement update

EUVD-2026-365472

fkie_cve-2026-46189

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

RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path

Sashiko points out that pvrdma_uar_free() is already called within pvrdma_dealloc_ucontext(), so calling it before triggers a double free.

GHSA-xxxv-9j5g-vqfc

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

RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path

Sashiko points out that pvrdma_uar_free() is already called within pvrdma_dealloc_ucontext(), so calling it before triggers a double free.

msrc_CVE-2026-46189 — RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path

msrc_CVE-2026-46189

OESA-2026-2754 — kernel security update

Affected: openEuler:22.03-LTS-SP4: kernel

The Linux Kernel, the operating system core itself. Security Fix(es):

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

fbdev: fix potential buffer overflow in do_register_framebuffer()

The current implementation may lead to buffer overflow when: 1. Unregistration creates NULL gaps in registered_fb[] 2. All array slots become occupied despite num_registered_fb < FB_MAX 3. The registration loop exceeds array bounds

Add boundary check to prevent registered_fb[FB_MAX] access.(CVE-2025-38702)

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

hfs: validate record offset in hfsplus_bmap_alloc

hfsplus_bmap_alloc can trigger a crash if a record offset or length is larger than node_size

[ 15.264282] BUG: KASAN: slab-out-of-bounds in hfsplus_bmap_alloc+0x887/0x8b0 [ 15.265192] Read of size 8 at addr ffff8881085ca188 by task test/183 [ 15.265949] [ 15.266163] CPU: 0 UID: 0 PID: 183 Comm: test Not tainted 6.17.0-rc2-gc17b750b3ad9 #14 PREEMPT(voluntary) [ 15.266165] Hardware name: QEMU Ubuntu 24.04 PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 15.266167] Call Trace: [ 15.266168] <TASK> [ 15.266169] dump_stack_lvl+0x53/0x70 [ 15.266173] print_report+0xd0/0x660 [ 15.266181] kasan_report+0xce/0x100 [ 15.266185] hfsplus_bmap_alloc+0x887/0x8b0 [ 15.266208] hfs_btree_inc_height.isra.0+0xd5/0x7c0 [ 15.266217] hfsplus_brec_insert+0x870/0xb00 [ 15.266222] __hfsplus_ext_write_extent+…

RHSA-2026:30848 — Red Hat Security Advisory: kernel security, bug fix, and enhancement update

kernel: drm/amd/display: Do not skip unrelated mode changes in DSC validation kernel: ipv6: icmp: clear skb2->cb[] in ip6_err_gen_icmpv6_unreach() kernel: netfilter: flowtable: strictly check for maximum number of actions kernel: RDMA/iwcm: Fix workqueue list corruption by removing work_list kernel: selinux: fix overlayfs mmap() and mprotect() access checks kernel: ALSA: aloop: Fix peer runtime UAF during format-change stop kernel: RDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init() kernel: RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path

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

Security update for the Linux Kernel

UBUNTU-CVE-2026-46189

Affected: Ubuntu:Pro:14.04:LTS: linux-azure, 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, Ubuntu:16.04:LTS: linux-hwe-edge, Ubuntu:Pro:16.04:LTS: linux-oracle, Ubuntu:Pro:18.04:LTS: linux, Ubuntu:Pro:18.04:LTS: linux-aws, Ubuntu:18.04:LTS: linux-aws-5.0 and 246 more

In the Linux kernel, the following vulnerability has been resolved: RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path Sashiko points out that pvrdma_uar_free() is already called within pvrdma_dealloc_ucontext(), so calling it before triggers a double free.

WID-SEC-W-2026-1700 — Linux Kernel: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen oder andere nicht näher spezifizierte Auswirkungen zu erzielen.