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Full vulnerability report · 2026
CVE-2026-43466High confidence

net/mlx5e: Fix DMA FIFO desync on error CQE SQ recovery

Linux · Linux

8.2HighCVSS 3.1
Recommended action
Patch only the product branches with a verified fix

High technical severity; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 20 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityHighOperational priority:High, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • The selected CVSS metric records a network-reachable, unauthenticated path with no user interaction.
  • EPSS is 0.61% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Linux Linux and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: Within 30 daysRemediation target: Within 180 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 20 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Distribution package intelligence

Release-specific package status

Debian, ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

24 package states
Package result overrides the generic status

BlackTree has verified remediation for at least one product or source, but the relevant distribution still reports no fixed package for 20 affected package states shown here. Treat those rows as affected with no fix until that distribution publishes a fixed version.

Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution releaseSource packageVendor stateFixed versionEvidence
Debian trixietrixie · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.12.85-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian bookwormbookworm · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.1.170-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian forkyforky · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.19.10-1Debian Security Tracker ↗Source updated 6 Oct 2026
Debian sidsid · sourcelinuxVendor fix publishedDebian records a fixed source-package version for this release.6.19.10-1Debian Security Tracker ↗Source updated 6 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinuxAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-awsAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-azureAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-azure-fdeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-azure-nvidiaAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-gcpAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-gkeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-gkeopAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-ibmAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-lowlatencyAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-nvidiaAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-nvidia-lowlatencyAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-nvidia-tegraAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-oem-6.11Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-oracleAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-raspiAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-raspi-realtimeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-realtimeAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-riscvAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archivelinux-xilinxAffected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.Not published in this feedCanonical Ubuntu Security ↗Source updated 5 Oct 2026
Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
CVE-2026-43466 · CSAF 2.0 · revision 16 · interimSUSE Product Security TeamCVE-2026-43466
238 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP1
  • kernel-default-base as component of SUSE Linux Enterprise High Performance Computing 15 SP1
  • kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1
  • kernel-default-man as component of SUSE Linux Enterprise High Performance Computing 15 SP1
  • kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1
  • kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP1
  • kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP1
  • reiserfs-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP1
  • kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP2
  • kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP2
  • kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP2
  • kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP2
Summary
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix DMA FIFO desync on error CQE SQ recovery In case of a TX error CQE, a recovery flow is triggered, mlx5e_reset_txqsq_cc_pc() resets dma_fifo_cc to 0 but not dma_fifo_pc, desyncing the DMA FIFO producer and consumer. After recovery, the producer pushes new DMA entries at the old dma_fifo_pc, while the consumer reads from position 0. This causes us to unmap stale DMA addresses from before the recovery. The DMA FIFO is a purely software construct with no HW counterpart. At the point of reset, all WQEs have been flushed so dma_fifo_cc is already equal to dma_fifo_pc. There is no need to reset either counter, similar to how skb_fifo pc/cc are untouched. Remove the 'dma_fifo_cc = 0' reset. This fixes the following WARNING: WARNING: CPU: 0 PID: 0 at drivers/iommu/dma-iommu.c:1240 iommu_dma_unmap_page+0x79/0x90 Modules linked in: mlx5_vdpa vringh vdpa bonding mlx5_ib mlx5_vfio_pci ipip mlx5_fwctl tunnel4 mlx5_core ib_ipoib geneve ip6_gre ip_gre gre nf_tables ip6_tunnel rdma_ucm ib_uverbs ib_umad vfio_pci vfio_pci_core act_mirred act_skbedit act_vlan vhost_net vhost tap ip6table_mangle ip6table_nat ip6table_filter ip6_tables iptable_mangle cls_matchall nfnetlink_cttimeout act_gact cls_flower sch_ingress vhost_iotlb iptable_raw tunnel6 vfio_iommu_type1 vfio openvswitch nsh rpcsec_gss_krb5 auth_rpcgss oid_registry xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink iptable_nat nf_nat xt_addrtype br_netfilter overlay zram zsmalloc rpcrdma ib_iser libiscsi scsi_transport_iscsi rdma_cm iw_cm ib_cm ib_core fuse [last unloaded: nf_tables] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.13.0-rc5_for_upstream_min_debug_2024_12_30_21_33 #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:iommu_dma_unmap_page+0x79/0x90 Code: 2b 4d 3b 21 72 26 4d 3b 61 08 73 20 49 89 d8 44 89 f9 5b 4c 89 f2 4c 89 e6 48 89 ef 5d 41 5c 41 5d 41 5e 41 5f e9 c7 ae 9e ff 0b 5b 5d 41 5c 41 5d 41 5e 41 5f c3 66 2e 0f 1f 84 00 00 00 00 Call Trace: ? __warn+0x7d/0x110 ? iommu_dma_unmap_page+0x79/0x90 ? report_bug+0x16d/0x180 ? handle_bug+0x4f/0x90 ? exc_invalid_op+0x14/0x70 ? asm_exc_invalid_op+0x16/0x20 ? iommu_dma_unmap_page+0x79/0x90 ? iommu_dma_unmap_page+0x2e/0x90 dma_unmap_page_attrs+0x10d/0x1b0 mlx5e_tx_wi_dma_unmap+0xbe/0x120 [mlx5_core] mlx5e_poll_tx_cq+0x16d/0x690 [mlx5_core] mlx5e_napi_poll+0x8b/0xac0 [mlx5_core] __napi_poll+0x24/0x190 net_rx_action+0x32a/0x3b0 ? mlx5_eq_comp_int+0x7e/0x270 [mlx5_core] ? notifier_call_chain+0x35/0xa0 handle_softirqs+0xc9/0x270 irq_exit_rcu+0x71/0xd0 common_interrupt+0x7f/0xa0 asm_common_interrupt+0x22/0x40
Remediation
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2026-28772

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionPatch only the product branches with a verified fix

High technical severity; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 20 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product
01

What, why and how

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix DMA FIFO desync on error CQE SQ recovery In case of a TX error CQE, a recovery flow is triggered, mlx5e_reset_txqsq_cc_pc() resets dma_fifo_cc to 0 but not dma_fifo_pc, desyncing the DMA FIFO producer and consumer. After recovery, the producer pushes new DMA entries at the old dma_fifo_pc, while the consumer reads from position 0. This causes us to unmap stale DMA addresses from before the recovery. The DMA FIFO is a purely software construct with no HW counterpart. At the point of reset, all WQEs have been flushed so dma_fifo_cc is already equal to dma_fifo_pc. There is no need to reset either counter, similar to how skb_fifo pc/cc are untouched. Remove the 'dma_fifo_cc = 0' reset. This fixes the following WARNING: WARNING: CPU: 0 PID: 0 at drivers/iommu/dma-iommu.c:1240 iommu_dma_unmap_page+0x79/0x90 Modules linked in: mlx5_vdpa vringh vdpa bonding mlx5_ib mlx5_vfio_pci ipip mlx5_fwctl tunnel4 mlx5_core ib_ipoib geneve ip6_gre ip_gre gre nf_tables ip6_tunnel rdma_ucm ib_uverbs ib_umad vfio_pci vfio_pci_core act_mirred act_skbedit act_vlan vhost_net vhost tap ip6table_mangle ip6table_nat ip6table_filter ip6_tables iptable_mangle cls_matchall nfnetlink_cttimeout act_gact cls_flower sch_ingress vhost_iotlb iptable_raw tunnel6 vfio_iommu_type1 vfio openvswitch nsh rpcsec_gss_krb5 auth_rpcgss oid_registry xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink iptable_nat nf_nat xt_addrtype br_netfilter overlay zram zsmalloc rpcrdma ib_iser libiscsi scsi_transport_iscsi rdma_cm iw_cm ib_cm ib_core fuse [last unloaded: nf_tables] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.13.0-rc5_for_upstream_min_debug_2024_12_30_21_33 #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:iommu_dma_unmap_page+0x79/0x90 Code: 2b 4d 3b 21 72 26 4d 3b 61 08 73 20 49 89 d8 44 89 f9 5b 4c 89 f2 4c 89 e6 48 89 ef 5d 41 5c 41 5d 41 5e 41 5f e9 c7 ae 9e ff <0f> 0b 5b 5d 41 5c 41 5d 41 5e 41 5f c3 66 2e 0f 1f 84 00 00 00 00 Call Trace: <IRQ> ? __warn+0x7d/0x110 ? iommu_dma_unmap_page+0x79/0x90 ? report_bug+0x16d/0x180 ? handle_bug+0x4f/0x90 ? exc_invalid_op+0x14/0x70 ? asm_exc_invalid_op+0x16/0x20 ? iommu_dma_unmap_page+0x79/0x90 ? iommu_dma_unmap_page+0x2e/0x90 dma_unmap_page_attrs+0x10d/0x1b0 mlx5e_tx_wi_dma_unmap+0xbe/0x120 [mlx5_core] mlx5e_poll_tx_cq+0x16d/0x690 [mlx5_core] mlx5e_napi_poll+0x8b/0xac0 [mlx5_core] __napi_poll+0x24/0x190 net_rx_action+0x32a/0x3b0 ? mlx5_eq_comp_int+0x7e/0x270 [mlx5_core] ? notifier_call_chain+0x35/0xa0 handle_softirqs+0xc9/0x270 irq_exit_rcu+0x71/0xd0 common_interrupt+0x7f/0xa0 </IRQ> <TASK> asm_common_interrupt+0x22/0x40

What

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix DMA FIFO desync on error CQE SQ recovery In case of a TX error CQE, a recovery flow is triggered, mlx5e_reset_txqsq_cc_pc() resets dma_fifo_cc to 0 but not dma_fifo_pc, desyncing the DMA FIFO producer and consumer. After recovery, the producer pushes new DMA entries at the old dma_fifo_pc, while the consumer reads from position 0. This causes us to unmap stale DMA addresses from before the recovery. The DMA FIFO is a purely software construct with no HW counterpart. At the point of reset, all WQEs have been flushed so dma_fifo_cc is already equal to dma_fifo_pc. There is no need to reset either counter, similar to how skb_fifo pc/cc are untouched. Remove the 'dma_fifo_cc = 0' reset. This fixes the following WARNING: WARNING: CPU: 0 PID: 0 at drivers/iommu/dma-iommu.c:1240 iommu_dma_unmap_page+0x79/0x90 Modules linked in: mlx5_vdpa vringh vdpa bonding mlx5_ib mlx5_vfio_pci ipip mlx5_fwctl tunnel4 mlx5_core ib_ipoib geneve ip6_gre ip_gre gre nf_tables ip6_tunnel rdma_ucm ib_uverbs ib_umad vfio_pci vfio_pci_core act_mirred act_skbedit act_vlan vhost_net vhost tap ip6table_mangle ip6table_nat ip6table_filter ip6_tables iptable_mangle cls_matchall nfnetlink_cttimeout act_gact cls_flower sch_ingress vhost_iotlb iptable_raw tunnel6 vfio_iommu_type1 vfio openvswitch nsh rpcsec_gss_krb5 auth_rpcgss oid_registry xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink iptable_nat nf_nat xt_addrtype br_netfilter overlay zram zsmalloc rpcrdma ib_iser libiscsi scsi_transport_iscsi rdma_cm iw_cm ib_cm ib_core fuse [last unloaded: nf_tables] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.13.0-rc5_for_upstream_min_debug_2024_12_30_21_33 #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:iommu_dma_unmap_page+0x79/0x90 Code: 2b 4d 3b 21 72 26 4d 3b 61 08 73 20 49 89 d8 44 89 f9 5b 4c 89 f2 4c 89 e6 48 89 ef 5d 41 5c 41 5d 41 5e 41 5f e9 c7 ae 9e ff <0f> 0b 5b 5d 41 5c 41 5d 41 5e 41 5f c3 66 2e 0f 1f 84 00 00 00 00 Call Trace: <IRQ> ? __warn+0x7d/0x110 ? iommu_dma_unmap_page+0x79/0x90 ? report_bug+0x16d/0x180 ? handle_bug+0x4f/0x90 ? exc_invalid_op+0x14/0x70 ? asm_exc_invalid_op+0x16/0x20 ? iommu_dma_unmap_page+0x79/0x90 ? iommu_dma_unmap_page+0x2e/0x90 dma_unmap_page_attrs+0x10d/0x1b0 mlx5e_tx_wi_dma_unmap+0xbe/0x120 [mlx5_core] mlx5e_poll_tx_cq+0x16d/0x690 [mlx5_core] mlx5e_napi_poll+0x8b/0xac0 [mlx5_core] __napi_poll+0x24/0x190 net_rx_action+0x32a/0x3b0 ? mlx5_eq_comp_int+0x7e/0x270 [mlx5_core] ? notifier_call_chain+0x35/0xa0 handle_softirqs+0xc9/0x270 irq_exit_rcu+0x71/0xd0 common_interrupt+0x7f/0xa0 </IRQ> <TASK> asm_common_interrupt+0x22/0x40

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix DMA FIFO desync on error CQE SQ recovery In case of a TX error CQE, a recovery flow is triggered, mlx5e_reset_txqsq_cc_pc() resets dma_fifo_cc to 0 but not dma_fifo_pc, desyncing the DMA FIFO producer and consumer. After recovery, the producer pushes new DMA entries at the old dma_fifo_pc, while the consumer reads from position 0. This causes us to unmap stale DMA addresses from before the recovery. The DMA FIFO is a purely software construct with no HW counterpart. At the point of reset, all WQEs have been flushed so dma_fifo_cc is already equal to dma_fifo_pc. There is no need to reset either counter, similar to how skb_fifo pc/cc are untouched. Remove the 'dma_fifo_cc = 0' reset. This fixes the following WARNING: WARNING: CPU: 0 PID: 0 at drivers/iommu/dma-iommu.c:1240 iommu_dma_unmap_page+0x79/0x90 Modules linked in: mlx5_vdpa vringh vdpa bonding mlx5_ib mlx5_vfio_pci ipip mlx5_fwctl tunnel4 mlx5_core ib_ipoib geneve ip6_gre ip_gre gre nf_tables ip6_tunnel rdma_ucm ib_uverbs ib_umad vfio_pci vfio_pci_core act_mirred act_skbedit act_vlan vhost_net vhost tap ip6table_mangle ip6table_nat ip6table_filter ip6_tables iptable_mangle cls_matchall nfnetlink_cttimeout act_gact cls_flower sch_ingress vhost_iotlb iptable_raw tunnel6 vfio_iommu_type1 vfio openvswitch nsh rpcsec_gss_krb5 auth_rpcgss oid_registry xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink iptable_nat nf_nat xt_addrtype br_netfilter overlay zram zsmalloc rpcrdma ib_iser libiscsi scsi_transport_iscsi rdma_cm iw_cm ib_cm ib_core fuse [last unloaded: nf_tables] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.13.0-rc5_for_upstream_min_debug_2024_12_30_21_33 #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:iommu_dma_unmap_page+0x79/0x90 Code: 2b 4d 3b 21 72 26 4d 3b 61 08 73 20 49 89 d8 44 89 f9 5b 4c 89 f2 4c 89 e6 48 89 ef 5d 41 5c 41 5d 41 5e 41 5f e9 c7 ae 9e ff <0f> 0b 5b 5d 41 5c 41 5d 41 5e 41 5f c3 66 2e 0f 1f 84 00 00 00 00 Call Trace: <IRQ> ? __warn+0x7d/0x110 ? iommu_dma_unmap_page+0x79/0x90 ? report_bug+0x16d/0x180 ? handle_bug+0x4f/0x90 ? exc_invalid_op+0x14/0x70 ? asm_exc_invalid_op+0x16/0x20 ? iommu_dma_unmap_page+0x79/0x90 ? iommu_dma_unmap_page+0x2e/0x90 dma_unmap_page_attrs+0x10d/0x1b0 mlx5e_tx_wi_dma_unmap+0xbe/0x120 [mlx5_core] mlx5e_poll_tx_cq+0x16d/0x690 [mlx5_core] mlx5e_napi_poll+0x8b/0xac0 [mlx5_core] __napi_poll+0x24/0x190 net_rx_action+0x32a/0x3b0 ? mlx5_eq_comp_int+0x7e/0x270 [mlx5_core] ? notifier_call_chain+0x35/0xa0 handle_softirqs+0xc9/0x270 irq_exit_rcu+0x71/0xd0 common_interrupt+0x7f/0xa0 </IRQ> <TASK> asm_common_interrupt+0x22/0x40

Why

The current structured CVE record identifies a security weakness, but the root cause requires confirmation in the linked vendor material.

How

An attacker operating through a network path may attempt exploitation without authentication or user interaction. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → vulnerable operation → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration.
CWE not yet assigned
CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CNoneConfidentiality impact: No direct loss is represented by this metric.ILowIntegrity impact: A successful attack can cause a limited loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkUnauthenticated
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

BSI · German · WID-SEC-2026-1454Linux Kernel: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen, möglicherweise Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren oder offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1229Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-43439 Référence CVE CVE-2026-43445 https://www.cve.org/CVERecord?id=CVE-2026-43445 Référence CVE CVE-2026-43449 https://www.cve.org/CVERecord?id=CVE-2026-43449 Référence CVE CVE-2026-43450 https://www.cve.org/CVERecord?id=CVE-2026-43450 Référence CVE CVE-2026-43451 https://www.cve.org/CVERecord?id=CVE-2026-43451 Référence CVE CVE-2026-43452 https://www.cve.org/CVERecord?id=CVE-2026-43452 Référence CVE CVE-2026-43453 https://www.cve.org/CVERecord?id=CVE-2026-43453 Référence CVE CVE-2026-43458 https://www.cve.org/CVERecord?id=CVE-2026-43458 Référence CVE CVE-2026-43459 https://www.cve.org/CVERecord?id=CVE-2026-43459 Référence CVE CVE-2026-43466 https://www.cve.org/CVERecord?id=CVE-2026-43466 Référence CVE CVE-2026-43469 https://www.cve.org/CVERecord?id=CVE-2026-43469 Référence CVE CVE-2026-43472 https://www.cve.org/CVERecord?id=CVE-2026-43472 Référence CVE CVE-2026-43473 https://www.cve.org/CVERecord?id=CVE-2026-43473 Référence CVE CVE-2026-43475 https://www.cve.org/CVERecord?id=CVE-2026-43475 Référence CVE CVE-2026-43476 https://www.cve.org/CVERecord?id=CVE-2026-43476 Référence CVE CVE-2026-43480 https://www.cve.org/CVERecord?id=CVE-2026-43480 Référence CVE CVE-2026-43484 https://www.cve.org/CVERecord?id=CVE-2026-43484 Référence CVE CVE-2026-43490 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1093Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-43445 Référence CVE CVE-2026-43449 https://www.cve.org/CVERecord?id=CVE-2026-43449 Référence CVE CVE-2026-43450 https://www.cve.org/CVERecord?id=CVE-2026-43450 Référence CVE CVE-2026-43451 https://www.cve.org/CVERecord?id=CVE-2026-43451 Référence CVE CVE-2026-43452 https://www.cve.org/CVERecord?id=CVE-2026-43452 Référence CVE CVE-2026-43453 https://www.cve.org/CVERecord?id=CVE-2026-43453 Référence CVE CVE-2026-43458 https://www.cve.org/CVERecord?id=CVE-2026-43458 Référence CVE CVE-2026-43459 https://www.cve.org/CVERecord?id=CVE-2026-43459 Référence CVE CVE-2026-43465 https://www.cve.org/CVERecord?id=CVE-2026-43465 Référence CVE CVE-2026-43466 https://www.cve.org/CVERecord?id=CVE-2026-43466 Référence CVE CVE-2026-43469 https://www.cve.org/CVERecord?id=CVE-2026-43469 Référence CVE CVE-2026-43472 https://www.cve.org/CVERecord?id=CVE-2026-43472 Référence CVE CVE-2026-43473 https://www.cve.org/CVERecord?id=CVE-2026-43473 Référence CVE CVE-2026-43475 https://www.cve.org/CVERecord?id=CVE-2026-43475 Référence CVE CVE-2026-43476 https://www.cve.org/CVERecord?id=CVE-2026-43476 Référence CVE CVE-2026-43480 https://www.cve.org/CVERecord?id=CVE-2026-43480 Référence CVE CVE-2026-43484 https://www.cve.org/CVERecord?id=CVE-2026-43484 Référence CVE CVE-2026-43493 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1066Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-43451 Référence CVE CVE-2026-43452 https://www.cve.org/CVERecord?id=CVE-2026-43452 Référence CVE CVE-2026-43453 https://www.cve.org/CVERecord?id=CVE-2026-43453 Référence CVE CVE-2026-43455 https://www.cve.org/CVERecord?id=CVE-2026-43455 Référence CVE CVE-2026-43456 https://www.cve.org/CVERecord?id=CVE-2026-43456 Référence CVE CVE-2026-43457 https://www.cve.org/CVERecord?id=CVE-2026-43457 Référence CVE CVE-2026-43458 https://www.cve.org/CVERecord?id=CVE-2026-43458 Référence CVE CVE-2026-43459 https://www.cve.org/CVERecord?id=CVE-2026-43459 Référence CVE CVE-2026-43465 https://www.cve.org/CVERecord?id=CVE-2026-43465 Référence CVE CVE-2026-43466 https://www.cve.org/CVERecord?id=CVE-2026-43466 Référence CVE CVE-2026-43467 https://www.cve.org/CVERecord?id=CVE-2026-43467 Référence CVE CVE-2026-43468 https://www.cve.org/CVERecord?id=CVE-2026-43468 Référence CVE CVE-2026-43469 https://www.cve.org/CVERecord?id=CVE-2026-43469 Référence CVE CVE-2026-43471 https://www.cve.org/CVERecord?id=CVE-2026-43471 Référence CVE CVE-2026-43472 https://www.cve.org/CVERecord?id=CVE-2026-43472 Référence CVE CVE-2026-43473 https://www.cve.org/CVERecord?id=CVE-2026-43473 Référence CVE CVE-2026-43475 https://www.cve.org/CVERecord?id=CVE-2026-43475 Référence CVE CVE-2026-43476 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-1029Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-43383 Référence CVE CVE-2026-43425 https://www.cve.org/CVERecord?id=CVE-2026-43425 Référence CVE CVE-2026-43427 https://www.cve.org/CVERecord?id=CVE-2026-43427 Référence CVE CVE-2026-43440 https://www.cve.org/CVERecord?id=CVE-2026-43440 Référence CVE CVE-2026-43445 https://www.cve.org/CVERecord?id=CVE-2026-43445 Référence CVE CVE-2026-43449 https://www.cve.org/CVERecord?id=CVE-2026-43449 Référence CVE CVE-2026-43450 https://www.cve.org/CVERecord?id=CVE-2026-43450 Référence CVE CVE-2026-43451 https://www.cve.org/CVERecord?id=CVE-2026-43451 Référence CVE CVE-2026-43452 https://www.cve.org/CVERecord?id=CVE-2026-43452 Référence CVE CVE-2026-43466 https://www.cve.org/CVERecord?id=CVE-2026-43466 Référence CVE CVE-2026-43475 https://www.cve.org/CVERecord?id=CVE-2026-43475 Référence CVE CVE-2026-43493 https://www.cve.org/CVERecord?id=CVE-2026-43493 Référence CVE CVE-2026-43496 https://www.cve.org/CVERecord?id=CVE-2026-43496 Référence CVE CVE-2026-45857 https://www.cve.org/CVERecord?id=CVE-2026-45857 Référence CVE CVE-2026-45858 https://www.cve.org/CVERecord?id=CVE-2026-45858 Référence CVE CVE-2026-45871 https://www.cve.org/CVERecord?id=CVE-2026-45871 Référence CVE CVE-2026-45877 https://www.cve.org/CVERecord?id=CVE-2026-45877 Référence CVE CVE-2026-45899 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0985Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-43439 Référence CVE CVE-2026-43445 https://www.cve.org/CVERecord?id=CVE-2026-43445 Référence CVE CVE-2026-43449 https://www.cve.org/CVERecord?id=CVE-2026-43449 Référence CVE CVE-2026-43450 https://www.cve.org/CVERecord?id=CVE-2026-43450 Référence CVE CVE-2026-43451 https://www.cve.org/CVERecord?id=CVE-2026-43451 Référence CVE CVE-2026-43452 https://www.cve.org/CVERecord?id=CVE-2026-43452 Référence CVE CVE-2026-43453 https://www.cve.org/CVERecord?id=CVE-2026-43453 Référence CVE CVE-2026-43458 https://www.cve.org/CVERecord?id=CVE-2026-43458 Référence CVE CVE-2026-43459 https://www.cve.org/CVERecord?id=CVE-2026-43459 Référence CVE CVE-2026-43466 https://www.cve.org/CVERecord?id=CVE-2026-43466 Référence CVE CVE-2026-43469 https://www.cve.org/CVERecord?id=CVE-2026-43469 Référence CVE CVE-2026-43472 https://www.cve.org/CVERecord?id=CVE-2026-43472 Référence CVE CVE-2026-43473 https://www.cve.org/CVERecord?id=CVE-2026-43473 Référence CVE CVE-2026-43475 https://www.cve.org/CVERecord?id=CVE-2026-43475 Référence CVE CVE-2026-43476 https://www.cve.org/CVERecord?id=CVE-2026-43476 Référence CVE CVE-2026-43480 https://www.cve.org/CVERecord?id=CVE-2026-43480 Référence CVE CVE-2026-43484 https://www.cve.org/CVERecord?id=CVE-2026-43484 Référence CVE CVE-2026-43496 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0956Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-43437 Référence CVE CVE-2026-43445 https://www.cve.org/CVERecord?id=CVE-2026-43445 Référence CVE CVE-2026-43449 https://www.cve.org/CVERecord?id=CVE-2026-43449 Référence CVE CVE-2026-43450 https://www.cve.org/CVERecord?id=CVE-2026-43450 Référence CVE CVE-2026-43452 https://www.cve.org/CVERecord?id=CVE-2026-43452 Référence CVE CVE-2026-43456 https://www.cve.org/CVERecord?id=CVE-2026-43456 Référence CVE CVE-2026-43457 https://www.cve.org/CVERecord?id=CVE-2026-43457 Référence CVE CVE-2026-43458 https://www.cve.org/CVERecord?id=CVE-2026-43458 Référence CVE CVE-2026-43465 https://www.cve.org/CVERecord?id=CVE-2026-43465 Référence CVE CVE-2026-43466 https://www.cve.org/CVERecord?id=CVE-2026-43466 Référence CVE CVE-2026-43468 https://www.cve.org/CVERecord?id=CVE-2026-43468 Référence CVE CVE-2026-43469 https://www.cve.org/CVERecord?id=CVE-2026-43469 Référence CVE CVE-2026-43470 https://www.cve.org/CVERecord?id=CVE-2026-43470 Référence CVE CVE-2026-43471 https://www.cve.org/CVERecord?id=CVE-2026-43471 Référence CVE CVE-2026-43473 https://www.cve.org/CVERecord?id=CVE-2026-43473 Référence CVE CVE-2026-43491 https://www.cve.org/CVERecord?id=CVE-2026-43491 Référence CVE CVE-2026-43492 https://www.cve.org/CVERecord?id=CVE-2026-43492 Référence CVE CVE-2026-43494 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0954Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-43450 Référence CVE CVE-2026-43451 https://www.cve.org/CVERecord?id=CVE-2026-43451 Référence CVE CVE-2026-43452 https://www.cve.org/CVERecord?id=CVE-2026-43452 Référence CVE CVE-2026-43453 https://www.cve.org/CVERecord?id=CVE-2026-43453 Référence CVE CVE-2026-43455 https://www.cve.org/CVERecord?id=CVE-2026-43455 Référence CVE CVE-2026-43456 https://www.cve.org/CVERecord?id=CVE-2026-43456 Référence CVE CVE-2026-43457 https://www.cve.org/CVERecord?id=CVE-2026-43457 Référence CVE CVE-2026-43458 https://www.cve.org/CVERecord?id=CVE-2026-43458 Référence CVE CVE-2026-43459 https://www.cve.org/CVERecord?id=CVE-2026-43459 Référence CVE CVE-2026-43466 https://www.cve.org/CVERecord?id=CVE-2026-43466 Référence CVE CVE-2026-43467 https://www.cve.org/CVERecord?id=CVE-2026-43467 Référence CVE CVE-2026-43468 https://www.cve.org/CVERecord?id=CVE-2026-43468 Référence CVE CVE-2026-43469 https://www.cve.org/CVERecord?id=CVE-2026-43469 Référence CVE CVE-2026-43471 https://www.cve.org/CVERecord?id=CVE-2026-43471 Référence CVE CVE-2026-43472 https://www.cve.org/CVERecord?id=CVE-2026-43472 Référence CVE CVE-2026-43473 https://www.cve.org/CVERecord?id=CVE-2026-43473 Référence CVE CVE-2026-43475 https://www.cve.org/CVERecord?id=CVE-2026-43475 Référence CVE CVE-2026-43476 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0927Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-43445 Référence CVE CVE-2026-43449 https://www.cve.org/CVERecord?id=CVE-2026-43449 Référence CVE CVE-2026-43450 https://www.cve.org/CVERecord?id=CVE-2026-43450 Référence CVE CVE-2026-43452 https://www.cve.org/CVERecord?id=CVE-2026-43452 Référence CVE CVE-2026-43456 https://www.cve.org/CVERecord?id=CVE-2026-43456 Référence CVE CVE-2026-43457 https://www.cve.org/CVERecord?id=CVE-2026-43457 Référence CVE CVE-2026-43458 https://www.cve.org/CVERecord?id=CVE-2026-43458 Référence CVE CVE-2026-43459 https://www.cve.org/CVERecord?id=CVE-2026-43459 Référence CVE CVE-2026-43465 https://www.cve.org/CVERecord?id=CVE-2026-43465 Référence CVE CVE-2026-43466 https://www.cve.org/CVERecord?id=CVE-2026-43466 Référence CVE CVE-2026-43467 https://www.cve.org/CVERecord?id=CVE-2026-43467 Référence CVE CVE-2026-43468 https://www.cve.org/CVERecord?id=CVE-2026-43468 Référence CVE CVE-2026-43469 https://www.cve.org/CVERecord?id=CVE-2026-43469 Référence CVE CVE-2026-43470 https://www.cve.org/CVERecord?id=CVE-2026-43470 Référence CVE CVE-2026-43471 https://www.cve.org/CVERecord?id=CVE-2026-43471 Référence CVE CVE-2026-43473 https://www.cve.org/CVERecord?id=CVE-2026-43473 Référence CVE CVE-2026-43476 https://www.cve.org/CVERecord?id=CVE-2026-43476 Référence CVE CVE-2026-43480 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0926Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-43450 Référence CVE CVE-2026-43451 https://www.cve.org/CVERecord?id=CVE-2026-43451 Référence CVE CVE-2026-43452 https://www.cve.org/CVERecord?id=CVE-2026-43452 Référence CVE CVE-2026-43453 https://www.cve.org/CVERecord?id=CVE-2026-43453 Référence CVE CVE-2026-43455 https://www.cve.org/CVERecord?id=CVE-2026-43455 Référence CVE CVE-2026-43456 https://www.cve.org/CVERecord?id=CVE-2026-43456 Référence CVE CVE-2026-43457 https://www.cve.org/CVERecord?id=CVE-2026-43457 Référence CVE CVE-2026-43458 https://www.cve.org/CVERecord?id=CVE-2026-43458 Référence CVE CVE-2026-43459 https://www.cve.org/CVERecord?id=CVE-2026-43459 Référence CVE CVE-2026-43466 https://www.cve.org/CVERecord?id=CVE-2026-43466 Référence CVE CVE-2026-43467 https://www.cve.org/CVERecord?id=CVE-2026-43467 Référence CVE CVE-2026-43468 https://www.cve.org/CVERecord?id=CVE-2026-43468 Référence CVE CVE-2026-43469 https://www.cve.org/CVERecord?id=CVE-2026-43469 Référence CVE CVE-2026-43471 https://www.cve.org/CVERecord?id=CVE-2026-43471 Référence CVE CVE-2026-43472 https://www.cve.org/CVERecord?id=CVE-2026-43472 Référence CVE CVE-2026-43473 https://www.cve.org/CVERecord?id=CVE-2026-43473 Référence CVE CVE-2026-43475 https://www.cve.org/CVERecord?id=CVE-2026-43475 Référence CVE CVE-2026-43476 https://www.cve.org/CVERecord?id=

Official advisory ↗
CERT-FR · French · CERTFR-2026-AVI-0696Multiples vulnérabilités dans le noyau Linux de Debian LTS

d?id=CVE-2026-43439 Référence CVE CVE-2026-43445 https://www.cve.org/CVERecord?id=CVE-2026-43445 Référence CVE CVE-2026-43449 https://www.cve.org/CVERecord?id=CVE-2026-43449 Référence CVE CVE-2026-43450 https://www.cve.org/CVERecord?id=CVE-2026-43450 Référence CVE CVE-2026-43451 https://www.cve.org/CVERecord?id=CVE-2026-43451 Référence CVE CVE-2026-43452 https://www.cve.org/CVERecord?id=CVE-2026-43452 Référence CVE CVE-2026-43453 https://www.cve.org/CVERecord?id=CVE-2026-43453 Référence CVE CVE-2026-43458 https://www.cve.org/CVERecord?id=CVE-2026-43458 Référence CVE CVE-2026-43459 https://www.cve.org/CVERecord?id=CVE-2026-43459 Référence CVE CVE-2026-43466 https://www.cve.org/CVERecord?id=CVE-2026-43466 Référence CVE CVE-2026-43472 https://www.cve.org/CVERecord?id=CVE-2026-43472 Référence CVE CVE-2026-43475 https://www.cve.org/CVERecord?id=CVE-2026-43475 Référence CVE CVE-2026-43480 https://www.cve.org/CVERecord?id=CVE-2026-43480 Référence CVE CVE-2026-43503 https://www.cve.org/CVERecord?id=CVE-2026-43503 Référence CVE CVE-2026-45848 https://www.cve.org/CVERecord?id=CVE-2026-45848 Référence CVE CVE-2026-45852 https://www.cve.org/CVERecord?id=CVE-2026-45852 Référence CVE CVE-2026-45856 https://www.cve.org/CVERecord?id=CVE-2026-45856 Référence CVE CVE-2026-45857 https://www.cve.org/CVERecord?id=

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2026-016859LinuxのLinux Kernelにおける不特定の脆弱性

Linuxカーネルにおいて、net/mlx5eのTXエラーCQE発生時にDMA FIFOのプロデューサーとコンシューマーの同期ずれが起きる問題が修正されました。具体的には、復旧関数mlx5e_reset_txqsq_cc_pc()がdma_fifo_ccのみを0にリセットし、dma_fifo_pcをリセットしなかったため、復旧後に古いdma_fifo_pcの位置に新しいDMAエントリーがプッシュされ、コンシューマーが不正な古いDMAアドレスをアンマップしていました。DMA FIFOはソフトウェア構造で、リセット時点ですべてのWQEがフラッシュされているため、dma_fifo_ccとdma_fifo_pcは等しい状態にあり、どちらのカウンターもリセットする必要はありません。この修正によりdma_fifo_ccのリセットが削除され、以下のような警告が解消されます：WARNING: CPU: 0 PID: 0 at drivers/iommu/dma-iommu.c:1240 iommu_dma_unmap_page+0x79/0x90。

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix availability varies by product
Affected
Fixed
Linux: < 4.17, 5.10.253 ≤ 5.10.*, 5.15.203 ≤ 5.15.*, 6.1.167 ≤ 6.1.*, 6.6.130 ≤ 6.6.*, 6.12.78 ≤ 6.12.*, 6.18.19 ≤ 6.18.*, 6.19.9 ≤ 6.19.*, 7.0 ≤ *
Action
Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 8 May 2026 · Last source change 5 Aug 2026, 12:28 UTC · CWE not yet assigned

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2026-28772
Product sourceVendor CSAF · SUSE Product Security Team
Remediation sourceVendor CSAF · SUSE Product Security Team
CWE sourceUnavailable
NVD statusNVD enriched

Missing structured fields: CWE classification. Missing data is not evidence of low risk; review the primary advisory.

Material change intelligence

What changed after publication

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No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2026-28772↗Vendor CSAF · SUSE Product Security Team↗CVE authority or vendor reference↗Patch or update reference↗Patch or update reference↗Patch or update reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-43466 · cve.blacktree.nl