CVE-2026-52953
- Source
- https://cve.org/CVERecord?id=CVE-2026-52953
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-52953.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-52953
- Downstream
- Related
- Published
- 2026-06-24T16:28:36Z
- Modified
- 2026-08-27T18:26:52Z
- Severity
-
- 7.1 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H CVSS Calculator
- Summary
- iommu/vt-d: Fix oops due to out of scope access
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
iommu/vt-d: Fix oops due to out of scope access
Below oops triggers when kill QEMU process:
Oops: general protection fault, probably for non-canonical address 0x7fffffff844eaaa7: 0000 [#1] SMP NOPTI Call Trace: do_raw_spin_lock+0xaa/0xc0 _raw_spin_lock_irqsave+0x21/0x40 domain_remove_dev_pasid+0x52/0x160 intel_nested_set_dev_pasid+0x1b9/0x1e0 __iommu_set_group_pasid+0x56/0x120 pci_dev_reset_iommu_done+0xe3/0x180 pcie_flr+0x65/0x160 __pci_reset_function_locked+0x5b/0x120 vfio_pci_core_close_device+0x63/0xe0 [vfio_pci_core] vfio_df_close+0x4f/0xa0 vfio_df_unbind_iommufd+0x2d/0x60 vfio_device_fops_release+0x3e/0x40 __fput+0xe5/0x2c0 task_work_run+0x58/0xa0 do_exit+0x2c8/0x600 do_group_exit+0x2f/0xa0 get_signal+0x863/0x8c0 arch_do_signal_or_restart+0x24/0x100 exit_to_user_mode_loop+0x87/0x380 do_syscall_64+0x2ff/0x11e0 entry_SYSCALL_64_after_hwframe+0x76/0x7e
The global static blocked domain is a dummy domain without corresponding dmar_domain structure, accessing beyond iommu_domain structure triggers oops easily. Fix it by return early in domain_remove_dev_pasid() like identity domain.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52953.json" }- References
-
- https://git.kernel.org/stable/c/1e659db468476733d217c1314c1e0d9244356d6c
- https://git.kernel.org/stable/c/88397fad7914ee74a7880fa5ce01f9eb6bfe0743
- https://git.kernel.org/stable/c/a6dea58d8625c06b9654c0555f101742481335c3
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52953.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-52953
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git