RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
AI Analysis
Technical Summary
This vulnerability involves a double free error in the RDMA/vmw_pvrdma driver during the pvrdma_alloc_ucontext() error handling path. Double free errors can cause memory corruption, which may lead to application crashes or potentially exploitable conditions. The affected products include Microsoft and Azure Linux 3.0 versions. No detailed CVSS score or exploit information is available at this time.
Potential Impact
The impact of this vulnerability is related to potential memory corruption due to a double free condition, which could affect system stability or security. However, no known exploits have been reported, and the exact impact severity is not quantified by a CVSS score.
Mitigation Recommendations
Patch status is not yet confirmed — check the Microsoft Security Response Center advisory for current remediation guidance. Until a fix is available, users should follow any vendor recommendations and avoid triggering the vulnerable code path if possible.
RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path
Description
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a double free error in the RDMA/vmw_pvrdma driver during the pvrdma_alloc_ucontext() error handling path. Double free errors can cause memory corruption, which may lead to application crashes or potentially exploitable conditions. The affected products include Microsoft and Azure Linux 3.0 versions. No detailed CVSS score or exploit information is available at this time.
Potential Impact
The impact of this vulnerability is related to potential memory corruption due to a double free condition, which could affect system stability or security. However, no known exploits have been reported, and the exact impact severity is not quantified by a CVSS score.
Mitigation Recommendations
Patch status is not yet confirmed — check the Microsoft Security Response Center advisory for current remediation guidance. Until a fix is available, users should follow any vendor recommendations and avoid triggering the vulnerable code path if possible.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_vex
- Csaf Version
- 2.0
- Publisher
- Microsoft Security Response Center
- Advisory Id
- msrc_CVE-2026-46189
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a19fec6e29bf47b500fe0d3
Added to database: 5/29/2026, 9:01:58 PM
Last enriched: 5/29/2026, 9:10:22 PM
Last updated: 5/31/2026, 4:58:34 AM
Views: 2
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.