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In the Linux kernel, the following vulnerability has been resolved:
iommu/vt-d: debugfs: Fix legacy mode page table dump logic
In legacy mode, SSPTPTR is ignored if TT is not 00b or 01b. SSPTPTR maybe uninitialized or zero in that case and may cause oops like:
Oops: general protection fault, probably for non-canonical address 0xf00087d3f000f000: 0000 [#1] SMP NOPTI CPU: 2 UID: 0 PID: 786 Comm: cat Not tainted 6.16.0 #191 PREEMPT(voluntary) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.17.0-5.fc42 04/01/2014 RIP: 0010:pgtable_walk_level+0x98/0x150 RSP: 0018:ffffc90000f279c0 EFLAGS: 00010206 RAX: 0000000040000000 RBX: ffffc90000f27ab0 RCX: 000000000000001e RDX: 0000000000000003 RSI: f00087d3f000f000 RDI: f00087d3f0010000 RBP: ffffc90000f27a00 R08: ffffc90000f27a98 R09: 0000000000000002 R10: 0000000000000000 R11: 0000000000000000 R12: f00087d3f000f000 R13: 0000000000000000 R14: 0000000040000000 R15: ffffc90000f27a98 FS: 0000764566dcb740(0000) GS:ffff8881f812c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000764566d44000 CR3: 0000000109d81003 CR4: 0000000000772ef0 PKRU: 55555554 Call Trace: <TASK> pgtable_walk_level+0x88/0x150 domain_translation_struct_show.isra.0+0x2d9/0x300 dev_domain_translation_struct_show+0x20/0x40 seq_read_iter+0x12d/0x490 ...
Avoid walking the page table if TT is not 00b or 01b.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Nov 12, 2025 |
| Ubuntu | — | Upgrade linux-image-oracle-6.8Upgrade linux-image-virtual-6.8Upgrade linux-image-aws-fips-6.8Upgrade linux-image-raspi-6.17Upgrade linux-image-6.8.0-1051-azureUpgrade linux-image-realtime-hwe-22.04Upgrade linux-image-generic-hwe-22.04Upgrade linux-image-xilinxUpgrade linux-image-kvmUpgrade linux-image-nvidia-6.8Upgrade linux-image-generic-64kUpgrade linux-image-oracle-64k-6.8Upgrade linux-image-oem-22.04aUpgrade linux-image-gcp-lts-24.04Upgrade linux-image-aws-64k-6.17Upgrade linux-image-aws-6.17Upgrade linux-image-6.8.0-1049-nvidia-lowlatency-64kUpgrade linux-image-6.17.0-1006-realtimeUpgrade linux-image-genericUpgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-ibmUpgrade linux-image-aws-64kUpgrade linux-image-azure-6.17Upgrade linux-image-realtime-6.17Upgrade linux-image-oracle-64kUpgrade linux-image-gke-64k-6.8Upgrade linux-image-gke-6.8Upgrade linux-image-azure-6.8Upgrade linux-image-6.8.0-106-genericUpgrade linux-image-6.8.0-1049-nvidiaUpgrade linux-image-intel-iot-realtimeUpgrade linux-image-azure-lts-24.04Upgrade linux-image-aws-6.8Upgrade linux-image-xilinx-6.8Upgrade linux-image-raspi-6.8Upgrade linux-image-oem-22.04cUpgrade linux-image-gke-64kUpgrade linux-image-6.17.0-1007-oracleUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-6.8.0-2040-raspi-realtimeUpgrade linux-image-6.8.0-106-lowlatencyUpgrade linux-image-6.8.0-106-fipsUpgrade linux-image-generic-64k-6.17Upgrade linux-image-generic-6.8Upgrade linux-image-gcp-fips-6.8Upgrade linux-image-6.8.0-106-lowlatency-64kUpgrade linux-image-aws-lts-24.04Upgrade linux-image-aws-64k-6.8Upgrade linux-image-gcp-fipsUpgrade linux-image-gcp-64kUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-6.17.0-1007-oracle-64kUpgrade linux-image-azureUpgrade linux-image-raspi-realtimeUpgrade linux-image-oracle-lts-24.04Upgrade linux-image-virtual-6.17Upgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-intel-iotgUpgrade linux-image-gkeopUpgrade linux-image-6.8.0-1052-gcp-64kUpgrade linux-image-6.8.0-1049-nvidia-lowlatencyUpgrade linux-image-fips-6.8Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-realtime-6.8.1Upgrade linux-image-gcpUpgrade linux-image-nvidiaUpgrade linux-image-nvidia-64kUpgrade linux-image-oem-22.04bUpgrade linux-image-6.17.0-1008-azureUpgrade linux-image-raspiUpgrade linux-image-oem-22.04dUpgrade linux-image-azure-fips-6.8Upgrade linux-image-6.8.0-1052-azure-fipsUpgrade linux-image-6.8.0-106-generic-64kUpgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-6.17.0-1011-oemUpgrade linux-image-6.17.0-14-genericUpgrade linux-image-gcp-6.8Upgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-generic-lpaeUpgrade linux-image-ibm-classicUpgrade linux-image-6.8.0-1050-awsUpgrade linux-image-6.8.0-1048-gke-64kUpgrade linux-image-lowlatency-64kUpgrade linux-image-oracleUpgrade linux-image-oracle-6.17Upgrade linux-image-lowlatencyUpgrade linux-image-6.17.0-14-generic-64kUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-virtualUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-6.8.0-1050-raspiUpgrade linux-image-aws-fipsUpgrade linux-image-generic-64k-6.8Upgrade linux-image-6.8.0-1029-xilinxUpgrade linux-image-6.8.0-1035-gkeopUpgrade linux-image-gcp-64k-6.8Upgrade linux-image-6.8.0-1050-aws-fipsUpgrade linux-image-6.17.0-1007-gcpUpgrade linux-image-lowlatency-6.8Upgrade linux-image-oracle-64k-6.17Upgrade linux-image-gcp-6.17Upgrade linux-image-6.17.0-1007-aws-64kUpgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-oem-22.04Upgrade linux-image-realtimeUpgrade linux-image-gkeop-6.8Upgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-6.8.0-1052-gcpUpgrade linux-image-gkeUpgrade linux-image-6.8.0-1047-oracleUpgrade linux-image-oem-6.17Upgrade linux-image-6.17.0-1007-gcp-64kUpgrade linux-image-6.8.0-1049-ibmUpgrade linux-image-awsUpgrade linux-image-gcp-64k-6.17Upgrade linux-image-6.8.0-1048-gkeUpgrade linux-image-generic-6.17Upgrade linux-image-6.17.0-1008-raspiUpgrade linux-image-6.8.0-1047-oracle-64kUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-6.8.0-1052-gcp-fipsUpgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-6.8.0-1050-aws-64kUpgrade linux-image-azure-fipsUpgrade linux-image-fipsUpgrade linux-image-6.17.0-1007-awsUpgrade linux-image-6.8.1-1045-realtimeUpgrade linux-image-ibm-6.8Upgrade linux-image-6.8.0-1049-nvidia-64k | Feb 13, 2026 | Feb 12, 2026 |
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