CVE-2025-21833 Details
Description
In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Avoid use of NULL after WARN_ON_ONCE There is a WARN_ON_ONCE to catch an unlikely situation when domain_remove_dev_pasid can't find the `pasid`. In case it nevertheless happens we must avoid using a NULL pointer.
A vulnerability in the Linux kernel's IOMMU/VT-d implementation could lead to a NULL pointer dereference. This issue arises when the 'domain_remove_dev_pasid' function fails to locate the 'pasid', triggering a WARN_ON_ONCE alert. To prevent potential exploitation, the code has been modified to avoid using a NULL pointer in this scenario.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Oct 1, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/60f030f7418d3f1d94f2fb207fe3080e1844630b | kernel.org | Patch |
| https://git.kernel.org/stable/c/68ec78beb4a3fb0877cbaaf49758c85410c05977 | kernel.org | |
| https://git.kernel.org/stable/c/df96876be3b064aefc493f760e0639765d13ed0d | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-476 | NULL Pointer Dereference | [email protected] |
| CWE-476 | NULL Pointer Dereference | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | < 6.13.3 |
CPE
Remediation
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Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Nov 2, 2025 | CVE Modified | kernel.org |
| Oct 1, 2025 | CVE Modified | CISA-ADP |
| Mar 25, 2025 | Initial Analysis | [email protected] |
| Mar 6, 2025 | New CVE Received | kernel.org |