iommu/vt-d: Fix incorrect pci_for_each_dma_alias() for non-PCI devices
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix incorrect pci_for_each_dma_alias() for non-PCI devices Previously, the domain_context_clear() function incorrectly called pci_for_each_dma_alias() to set up context entries for non-PCI devices. This could lead to kernel hangs or other unexpected behavior. Add a check to only call pci_for_each_dma_alias() for PCI devices. For non-PCI devices, domain_context_clear_one() is called directly.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 5.15.142 to before 5.15.169; 6.1.66 to before 6.1.114; 6.6.5 to before 6.6.58 | 5.15.169, 6.1.114, 6.6.58 | Patch available | CNA |
| Linux | Linux | 6.7 and later | 5.15.169, 6.1.114, 6.6.58, 6.11.5, 6.12 | Patch available | CNA |
- Linux VendorLinux Affected 5.15.142 to before 5.15.169; 6.1.66 to before 6.1.114; 6.6.5 to before 6.6.58 Fixed in 5.15.169, 6.1.114, 6.6.58 Patch available CNA
- Linux VendorLinux Affected 6.7 and later Fixed in 5.15.169, 6.1.114, 6.6.58, 6.11.5, 6.12 Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.15.142 to before 5.15.169; 5.16 to before 6.1.114; 6.2 to before 6.6.58; 6.7 to before 6.11.5 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:* | 6.12 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:* | 6.12 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:* | 6.12 rc3 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.15.142 to before 5.15.169; 5.16 to before 6.1.114; 6.2 to before 6.6.58; 6.7 to before 6.11.5 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:* Versions 6.12 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:* Versions 6.12 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:* Versions 6.12 rc3 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.15.169, 6.1.114, 6.6.58
- Fix · CNA Linux (Linux) Fixed in 5.15.169, 6.1.114, 6.6.58, 6.11.5, 6.12
Red Hat 1 advisory
- RHSA-2025:6966 Released 2025-05-13 · Red Hat rating Moderatekernel security update
- Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-570.12.1.el9_6, kernel-64k-debug-devel-matched-5.14.0-570.12.1.el9_6, kernel-64k-devel-5.14.0-570.12.1.el9_6 +12
- Red Hat Enterprise Linux BaseOS (v. 9) kernel-5.14.0-570.12.1.el9_6, kernel-64k-5.14.0-570.12.1.el9_6, kernel-64k-core-5.14.0-570.12.1.el9_6 +28
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-570.12.1.el9_6, libperf-5.14.0-570.12.1.el9_6
- Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-570.12.1.el9_6, kernel-rt-64k-5.14.0-570.12.1.el9_6, kernel-rt-64k-core-5.14.0-570.12.1.el9_6 +21
- Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-570.12.1.el9_6, kernel-rt-core-5.14.0-570.12.1.el9_6, kernel-rt-debug-5.14.0-570.12.1.el9_6 +11
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2025:6966 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2025:6966 |
| Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) | Fixed | RHSA-2025:6966 |
| Red Hat Enterprise Linux Real Time (v. 9) | Fixed | RHSA-2025:6966 |
| Red Hat Enterprise Linux Real Time for NFV (v. 9) | Fixed | RHSA-2025:6966 |
Not affected: 3 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2024-50101
- 2026-10-03 Alias added: GHSA-6352-5p2f-gv84
- 2026-10-29 Affected versions changed · Red Hat
References
Patch 5
- https://git.kernel.org/stable/c/0bd9a30c22afb5da203386b811ec31429d2caa78
- https://git.kernel.org/stable/c/cbfa3a83eba05240ce37839ed48280a05e8e8f6c
- https://git.kernel.org/stable/c/fe2e0b6cd00abea3efac66de1da22d844364c1b0
- https://git.kernel.org/stable/c/04d6826ba7ba81213422276e96c90c6565169e1c
- https://git.kernel.org/stable/c/6e02a277f1db24fa039e23783c8921c7b0e5b1b3
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Sources
- CVE-2024-50101 · CVE Program
- CVE-2024-50101 · NVD
- FIRST EPSS
- GHSA-6352-5p2f-gv84 · GitHub Advisory Database · CC BY 4.0
- CVE-2024-50101 · Red Hat security data · CC BY 4.0
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