CVE-2026-53053
iommu/amd: Fix clone_alias() to use the original device's devid
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.
INFO
Published Date :
June 24, 2026, 5:17 p.m.
Last Modified :
July 21, 2026, 5:24 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
Solution
- Pass original pdev as opaque data.
- Retrieve original device from data.
- Compute devid from original device.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-53053.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-53053 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-53053
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-53053 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-53053 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jul. 21, 2026
Action Type Old Value New Value Added CWE NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.33 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 7.0.10 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.4.17 up to (excluding) 6.12.91 Added Reference Type kernel.org: https://git.kernel.org/stable/c/20b3c566e2702e5d4d0545be8a97029a2eebcc0e Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/dae251ff11d2d2208a029f98923756831cefec46 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/dbd76a537d8cb814e7f5b795ab21ecb7949c821d Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/faad224fe0f0857a04ff2eb3c90f0de57f47d0f3 Types: Patch -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 28, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 24, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'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': '6.12.91', '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'}] Added 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. Added Reference https://git.kernel.org/stable/c/20b3c566e2702e5d4d0545be8a97029a2eebcc0e Added Reference https://git.kernel.org/stable/c/dae251ff11d2d2208a029f98923756831cefec46 Added Reference https://git.kernel.org/stable/c/dbd76a537d8cb814e7f5b795ab21ecb7949c821d Added Reference https://git.kernel.org/stable/c/faad224fe0f0857a04ff2eb3c90f0de57f47d0f3