iommu/amd: Fix clone_alias() to use the original device's devid
Summary
| CVE | CVE-2026-53053 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-06-24 17:17:17 UTC |
| Updated | 2026-06-28 08:16:31 UTC |
| Description | In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Fix clone_alias() to use the original device's devid Currently clone_alias() assumes first argument (pdev) is always the original device pointer. This function is called by pci_for_each_dma_alias() which based on topology decides to send original or alias device details in first argument. This meant that the source devid used to look up and copy the DTE may be incorrect, leading to wrong or stale DTE entries being propagated to alias device. Fix this by passing the original pdev as the opaque data argument to both the direct clone_alias() call and pci_for_each_dma_alias(). Inside clone_alias(), retrieve the original device from data and compute devid from it. |
Risk And Classification
Primary CVSS: v3.1 8.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS: 0.001280000 probability, percentile 0.028580000 (date 2026-06-30)
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | Secondary | 8.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| 3.1 | CNA | DECLARED | 8.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
ChangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 3332364e4ebc0581d133a334645a20fd13b580f1 dbd76a537d8cb814e7f5b795ab21ecb7949c821d git | Not specified |
| CNA | Linux | Linux | affected 3332364e4ebc0581d133a334645a20fd13b580f1 20b3c566e2702e5d4d0545be8a97029a2eebcc0e git | Not specified |
| CNA | Linux | Linux | affected 3332364e4ebc0581d133a334645a20fd13b580f1 dae251ff11d2d2208a029f98923756831cefec46 git | Not specified |
| CNA | Linux | Linux | affected 3332364e4ebc0581d133a334645a20fd13b580f1 faad224fe0f0857a04ff2eb3c90f0de57f47d0f3 git | Not specified |
| CNA | Linux | Linux | affected 1f03a258f20f1699ede29bb40804074db9398a0d git | Not specified |
| CNA | Linux | Linux | affected 5.4.17 5.5 semver | Not specified |
| CNA | Linux | Linux | affected 5.5 | Not specified |
| CNA | Linux | Linux | unaffected 5.5 semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.91 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.33 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.0.10 7.0.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/20b3c566e2702e5d4d0545be8a97029a2eebcc0e | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/faad224fe0f0857a04ff2eb3c90f0de57f47d0f3 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/dae251ff11d2d2208a029f98923756831cefec46 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/dbd76a537d8cb814e7f5b795ab21ecb7949c821d | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.