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ALSA-2024:5928 — Important: kernel security update

Affected: AlmaLinux:9: bpftool, 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 and 52 more

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

Security Fix(es):

* kernel: nftables: nft_set_rbtree skip end interval element from gc (CVE-2024-26581) * kernel: netfilter: nft_limit: reject configurations that cause integer overflow (CVE-2024-26668) * kernel: vfio/pci: Lock external INTx masking ops (CVE-2024-26810) * kernel: net: ice: Fix potential NULL pointer dereference in ice_bridge_setlink() (CVE-2024-26855) * kernel: x86/xen: Add some null pointer checking to smp.c (CVE-2024-26908) * kernel: netfilter: nf_tables: release mutex after nft_gc_seq_end from abort path (CVE-2024-26925) * kernel: netfilter: nf_tables: Fix potential data-race in __nft_expr_type_get() (CVE-2024-27020) * kernel: netfilter: nf_tables: Fix potential data-race in __nft_obj_type_get() (CVE-2024-27019) * kernel: netfilter: flowtable: validate pppoe header (CVE-2024-27016) * kernel: netfilter: bridge: confirm multicast packets before passing them up the stack (CVE-2024-27415) * kernel: netfilter: bridge: replace physindev with physinif in nf_bridge_info (CVE-2024-35839) * kernel: netfilter: nf_tables: Fix potential data-race in __nft_flowtable_type_get() (CVE-2024-35898) * kernel: netfilter: nf_tables: discard table flag update with pending basechain deletion (CVE-2024-35897) * kernel: netfilter: validate user input for expected length (CVE-2024-35896) * kernel: netfilter: complete validation of user input (CVE-2024-35962) *…

bdu:2025-14593

BELL-CVE-2023-52771

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

certfr-2024-avi-0526 — De multiples vulnérabilités ont été découvertes dans le noyau Linux de SUSE. Certaines d'entre elles permettent une élé…

certfr-2024-avi-0526

EUVD-2026-311668

fkie_cve-2023-52771

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

cxl/port: Fix delete_endpoint() vs parent unregistration race

The CXL subsystem, at cxl_mem ->probe() time, establishes a lineage of ports (struct cxl_port objects) between an endpoint and the root of a CXL topology. Each port including the endpoint port is attached to the cxl_port driver.

Given that setup, it follows that when either any port in that lineage goes through a cxl_port ->remove() event, or the memdev goes through a cxl_mem ->remove() event. The hierarchy below the removed port, or the entire hierarchy if the memdev is removed needs to come down.

The delete_endpoint() callback is careful to check whether it is being called to tear down the hierarchy, or if it is only being called to teardown the memdev because an ancestor port is going through ->remove().

That care needs to take the device_lock() of the endpoint's parent. Which requires 2 bugs to be fixed:

1/ A reference on the parent is needed to prevent use-after-free scenarios like this signature:

BUG: spinlock bad magic on CPU#0, kworker/u56:0/11 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS edk2-20230524-3.fc38 05/24/2023 Workqueue: cxl_port detach_memdev [cxl_core] RIP: 0010:spin_bug+0x65/0xa0 Call Trace: do_raw_spin_lock+0x69/0xa0 __mutex_lock+0x695/0xb80 delete_endpoint+0xad/0x150 [cxl_core] devres_release_all+0xb8/0x110 device_unbind_cleanup+0xe/0x70 device_release_…

GHSA-pqqv-8xrg-2jg9

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

cxl/port: Fix delete_endpoint() vs parent unregistration race

That care needs to take the device_lock() of the endpoint's parent. Which requires 2 bugs to be fixed:

1/ A reference on the parent is needed to prevent use-after-free scenarios like this signature:

RHSA-2024:5364 — Red Hat Security Advisory: kernel security update

kernel: tty: Fix out-of-bound vmalloc access in imageblit kernel: gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump kernel: wifi: ath10k: fix NULL pointer dereference in ath10k_wmi_tlv_op_pull_mgmt_tx_compl_ev() kernel: cxl/port: Fix delete_endpoint() vs parent unregistration race kernel: platform/x86: wmi: Fix opening of char device kernel: dmaengine/idxd: hardware erratum allows potential security problem with direct access by untrusted application kernel: net: ice: Fix potential NULL pointer dereference in ice_bridge_setlink() kernel: wifi: ath9k: delay all of ath9k_wmi_event_tasklet() until init is complete kernel: nfp: flower: handle acti_netdevs allocation failure kernel: wifi: rtl8xxxu: add cancel_work_sync() for c2hcmd_work kernel: wifi: mac80211: check/clear fast rx for non-4addr sta VLAN changes kernel: wifi: iwlwifi: dbg-tlv: ensure NUL termination kernel: mlxsw: spectrum_acl_tcam: Fix memory leak when canceling rehash work kernel: mlxbf_gige: call request_irq() after NAPI initialized kernel: wifi: cfg80211: check A-MSDU format more carefully kernel: wifi: iwlwifi: read txq->read_ptr under lock kernel: wifi: nl80211: don't free NULL coalescing rule kernel: net: kernel: UAF in network route management kernel: net: bridge: xmit: make sure we have at least eth header len bytes kernel: net/mlx5: Discard command completions in internal error kernel: net/mlx5: Add a timeout to acquire the command queue semaphore kernel: r8169: Fix possible ring buffer c…

RHSA-2024:5928 — Red Hat Security Advisory: kernel security update

kernel: x86/xen: Fix memory leak in xen_smp_intr_init{_pv}() kernel: cxl/port: Fix delete_endpoint() vs parent unregistration race kernel: tty: n_gsm: require CAP_NET_ADMIN to attach N_GSM0710 ldisc kernel: nftables: nft_set_rbtree skip end interval element from gc kernel: netfilter: nft_limit: reject configurations that cause integer overflow kernel: vfio/pci: Lock external INTx masking ops kernel: net: ice: Fix potential NULL pointer dereference in ice_bridge_setlink() kernel: x86/xen: Add some null pointer checking to smp.c kernel: netfilter: nf_tables: release mutex after nft_gc_seq_end from abort path kernel: netfilter: flowtable: validate pppoe header kernel: netfilter: nf_tables: Fix potential data-race in __nft_obj_type_get() kernel: netfilter: nf_tables: Fix potential data-race in __nft_expr_type_get() kernel: netfilter: bridge: confirm multicast packets before passing them up the stack kernel: netfilter: bridge: replace physindev with physinif in nf_bridge_info kernel: netfilter: validate user input for expected length kernel: netfilter: nf_tables: discard table flag update with pending basechain deletion kernel: netfilter: nf_tables: Fix potential data-race in __nft_flowtable_type_get() kernel: netfilter: complete validation of user input kernel: ice: fix LAG and VF lock dependency in ice_reset_vf() kernel: scsi: qla2xxx: Fix off by one in qla_edif_app_getstats() kernel: net: bridge: xmit: make sure we have at least eth header len bytes kernel: bnxt_re: avoid shif…

SUSE-SU-2024:2135-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

UBUNTU-CVE-2023-52771

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 67 more

In the Linux kernel, the following vulnerability has been resolved: cxl/port: Fix delete_endpoint() vs parent unregistration race The CXL subsystem, at cxl_mem ->probe() time, establishes a lineage of ports (struct cxl_port objects) between an endpoint and the root of a CXL topology. Each port including the endpoint port is attached to the cxl_port driver. Given that setup, it follows that when either any port in that lineage goes through a cxl_port ->remove() event, or the memdev goes through a cxl_mem ->remove() event. The hierarchy below the removed port, or the entire hierarchy if the memdev is removed needs to come down. The delete_endpoint() callback is careful to check whether it is being called to tear down the hierarchy, or if it is only being called to teardown the memdev because an ancestor port is going through ->remove(). That care needs to take the device_lock() of the endpoint's parent. Which requires 2 bugs to be fixed: 1/ A reference on the parent is needed to prevent use-after-free scenarios like this signature: BUG: spinlock bad magic on CPU#0, kworker/u56:0/11 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS edk2-20230524-3.fc38 05/24/2023 Workqueue: cxl_port detach_memdev [cxl_core] RIP: 0010:spin_bug+0x65/0xa0 Call Trace: do_raw_spin_lock+0x69/0xa0 __mutex_lock+0x695/0xb80 delete_endpoint+0xad/0x150 [cxl_core] devres_release_all+0xb8/0x110 device_unbind_cleanup+0xe/0x70 device_release_driver_…

WID-SEC-W-2024-1197 — Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service und unspezifische Angriffe

Ein lokaler Angreifer kann mehrere Schwachstellen im Linux-Kernel ausnutzen, um einen Denial-of-Service-Zustand zu erzeugen oder unspezifische Angriffe durchzuführen.