iommu/amd: Fix clone_alias() to use the original device's devid
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.
CVE-2026-53053
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-53053
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3332364e4ebc0581d133a334645a20fd13b580f1",
"lessThan": "166a08644aa509e5d27e154d7fa774f4181df9e0",
"versionType": "git"
},
{
"status": "affected",
"version": "3332364e4ebc0581d133a334645a20fd13b580f1",
"lessThan": "dbd76a537d8cb814e7f5b795ab21ecb7949c821d",
"versionType": "git"
},
{
"status": "affected",
"version": "3332364e4ebc0581d133a334645a20fd13b580f1",
"lessThan": "20b3c566e2702e5d4d0545be8a97029a2eebcc0e",
"versionType": "git"
},
{
"status": "affected",
"version": "3332364e4ebc0581d133a334645a20fd13b580f1",
"lessThan": "dae251ff11d2d2208a029f98923756831cefec46",
"versionType": "git"
},
{
"status": "affected",
"version": "3332364e4ebc0581d133a334645a20fd13b580f1",
"lessThan": "faad224fe0f0857a04ff2eb3c90f0de57f47d0f3",
"versionType": "git"
},
{
"status": "affected",
"version": "1f03a258f20f1699ede29bb40804074db9398a0d",
"versionType": "git"
},
{
"status": "affected",
"version": "5.4.17",
"lessThan": "5.5",
"versionType": "semver"
}
],
"programFiles": [
"drivers/iommu/amd/iommu.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.5"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.5",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.91",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.33",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.0.10",
"versionType": "semver",
"lessThanOrEqual": "7.0.*"
},
{
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/iommu/amd/iommu.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-53053
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #46358 · Revision 1
- Added to Heist Feed
- Publisher date