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.
CVSS Details
- CVSS 3.1 Base Score: 7.3
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H)
Covered by Rapid7
| 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-azure-fips-6.8Upgrade linux-image-realtime-hwe-22.04Upgrade linux-image-oem-22.04bUpgrade linux-image-generic-64k-6.17Upgrade linux-image-oracle-64k-lts-24.04Upgrade linux-image-genericUpgrade linux-image-azureUpgrade linux-image-ibmUpgrade linux-image-6.8.0-1049-nvidia-lowlatencyUpgrade linux-image-fips-6.8Upgrade linux-image-6.8.0-1052-gcp-64kUpgrade linux-image-gke-64kUpgrade linux-image-6.17.0-1006-realtimeUpgrade linux-image-raspi-realtime-6.8Upgrade linux-image-raspi-realtimeUpgrade linux-image-oem-22.04aUpgrade linux-image-azure-lts-24.04Upgrade linux-image-6.17.0-1007-oracle-64kUpgrade linux-image-gcp-64kUpgrade linux-image-6.8.0-106-lowlatency-64kUpgrade linux-image-6.17.0-1007-oracleUpgrade linux-image-oem-22.04cUpgrade linux-image-oem-22.04dUpgrade linux-image-6.8.0-106-fipsUpgrade linux-image-nvidia-lowlatency-6.8Upgrade linux-image-6.8.0-106-lowlatencyUpgrade linux-image-nvidiaUpgrade linux-image-nvidia-6.8Upgrade linux-image-generic-64kUpgrade linux-image-nvidia-64kUpgrade linux-image-raspiUpgrade linux-image-xilinxUpgrade linux-image-oracle-6.8Upgrade linux-image-6.17.0-1008-azureUpgrade linux-image-virtual-6.17Upgrade linux-image-gcpUpgrade linux-image-6.8.0-2040-raspi-realtimeUpgrade linux-image-aws-64kUpgrade linux-image-aws-fips-6.8Upgrade linux-image-6.8.0-106-genericUpgrade linux-image-azure-6.17Upgrade linux-image-oracle-64k-6.8Upgrade linux-image-virtual-6.8Upgrade linux-image-6.8.0-106-generic-64kUpgrade linux-image-azure-6.8Upgrade linux-image-6.8.0-1049-nvidia-lowlatency-64kUpgrade linux-image-aws-6.17Upgrade linux-image-lowlatency-64k-hwe-22.04Upgrade linux-image-aws-64k-6.17Upgrade linux-image-generic-6.8Upgrade linux-image-aws-lts-24.04Upgrade linux-image-gcp-lts-24.04Upgrade linux-image-gke-64k-6.8Upgrade linux-image-xilinx-6.8Upgrade linux-image-aws-6.8Upgrade linux-image-raspi-6.8Upgrade linux-image-aws-64k-6.8Upgrade linux-image-oracle-lts-24.04Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-virtual-hwe-22.04Upgrade linux-image-gcp-fipsUpgrade linux-image-realtime-6.8.1Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-kvmUpgrade linux-image-gkeopUpgrade linux-image-generic-hwe-22.04Upgrade linux-image-intel-iotgUpgrade linux-image-gcp-fips-6.8Upgrade linux-image-oracle-64kUpgrade linux-image-6.8.0-1051-azureUpgrade linux-image-raspi-6.17Upgrade linux-image-6.8.0-1052-azure-fipsUpgrade linux-image-realtime-6.17Upgrade linux-image-gke-6.8Upgrade linux-image-6.8.0-1049-nvidiaUpgrade linux-image-lowlatency-6.8Upgrade linux-image-gcp-64k-6.8Upgrade linux-image-6.17.0-1007-gcpUpgrade linux-image-oracle-64k-6.17Upgrade linux-image-generic-6.17Upgrade linux-image-gcp-64k-6.17Upgrade linux-image-awsUpgrade linux-image-6.8.0-1047-oracle-64kUpgrade linux-image-6.8.0-1047-oracleUpgrade linux-image-6.17.0-1007-gcp-64kUpgrade linux-image-lowlatency-hwe-22.04Upgrade linux-image-6.8.0-1050-raspiUpgrade linux-image-generic-64k-6.8Upgrade linux-image-aws-fipsUpgrade linux-image-nvidia-64k-6.8Upgrade linux-image-ibm-classicUpgrade linux-image-6.8.0-1050-awsUpgrade linux-image-oem-6.17Upgrade linux-image-gcp-64k-lts-24.04Upgrade linux-image-fipsUpgrade linux-image-azure-fipsUpgrade linux-image-6.8.1-1045-realtimeUpgrade linux-image-6.8.0-1050-aws-64kUpgrade linux-image-nvidia-hwe-22.04Upgrade linux-image-gcp-6.8Upgrade linux-image-lowlatency-64kUpgrade linux-image-6.8.0-1048-gkeUpgrade linux-image-lowlatency-64k-6.8Upgrade linux-image-6.8.0-1052-gcpUpgrade linux-image-realtimeUpgrade linux-image-oem-22.04Upgrade linux-image-nvidia-lowlatency-64k-6.8Upgrade linux-image-ibm-6.8Upgrade linux-image-6.8.0-1050-aws-fipsUpgrade linux-image-6.8.0-1049-nvidia-64kUpgrade linux-image-6.8.0-1035-gkeopUpgrade linux-image-6.8.0-1029-xilinxUpgrade linux-image-6.17.0-1007-awsUpgrade linux-image-gkeUpgrade linux-image-6.8.0-1049-ibmUpgrade linux-image-nvidia-64k-hwe-22.04Upgrade linux-image-generic-64k-hwe-22.04Upgrade linux-image-gcp-6.17Upgrade linux-image-6.8.0-1052-gcp-fipsUpgrade linux-image-nvidia-lowlatency-64kUpgrade linux-image-ibm-lts-24.04Upgrade linux-image-aws-64k-lts-24.04Upgrade linux-image-generic-lpaeUpgrade linux-image-lowlatencyUpgrade linux-image-6.17.0-1007-aws-64kUpgrade linux-image-virtualUpgrade linux-image-oracle-6.17Upgrade linux-image-oracleUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-gkeop-6.8Upgrade linux-image-6.8.0-1048-gke-64kUpgrade linux-image-6.17.0-14-generic-64kUpgrade linux-image-6.17.0-14-genericUpgrade linux-image-6.17.0-1011-oemUpgrade linux-image-6.17.0-1008-raspi | Feb 13, 2026 | Feb 12, 2026 |
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