Linux hwe edge: In the Linux kernel, the following vulnerability has been resolved: i3c: dw: Fix memory leak in dw_i3c_master_i2c_xfers() The… (CVE-2026-45863)
A memory leak vulnerability was identified and fixed in the Linux kernel's i3c driver, specifically in the dw_i3c_master_i2c_xfers() function. The issue occurs when memory allocated for a transfer structure is not freed if a runtime power management function fails. This flaw could lead to resource exhaustion over time but does not impact confidentiality or integrity.
AI Analysis
Technical Summary
The Linux kernel's i3c driver contained a memory leak in the dw_i3c_master_i2c_xfers() function. This function allocates memory for a transfer structure using dw_i3c_master_alloc_xfer(). If the call to pm_runtime_resume_and_get() fails, the function returns without freeing the allocated memory, causing a leak. The fix involved adding a call to dw_i3c_master_free_xfer() in the error path to ensure proper cleanup. The issue was discovered through static analysis and code review and affects the linux-hwe-edge product. The vulnerability is tracked as CVE-2026-45863 and has a CVSS 3.1 base score of 5.5 (AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H), indicating a moderate severity primarily due to potential availability impact.
Potential Impact
The vulnerability causes a memory leak that can lead to resource exhaustion and potential denial of service conditions. There is no impact on confidentiality or integrity. The attack vector requires local access with low privileges and no user interaction is needed. The scope is unchanged, meaning the vulnerability affects only the vulnerable component.
Mitigation Recommendations
A fix for this memory leak has been implemented in the Linux kernel source code. Since no explicit patch links or vendor advisories are provided, users should apply the latest kernel updates from their distribution to ensure the fix is included. Patch status is not yet confirmed from vendor advisories; check the official Linux kernel or distribution security advisories for the current remediation guidance.
Linux hwe edge: In the Linux kernel, the following vulnerability has been resolved: i3c: dw: Fix memory leak in dw_i3c_master_i2c_xfers() The… (CVE-2026-45863)
Description
A memory leak vulnerability was identified and fixed in the Linux kernel's i3c driver, specifically in the dw_i3c_master_i2c_xfers() function. The issue occurs when memory allocated for a transfer structure is not freed if a runtime power management function fails. This flaw could lead to resource exhaustion over time but does not impact confidentiality or integrity.
CVSS v3.1
Score 5.5medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Linux kernel's i3c driver contained a memory leak in the dw_i3c_master_i2c_xfers() function. This function allocates memory for a transfer structure using dw_i3c_master_alloc_xfer(). If the call to pm_runtime_resume_and_get() fails, the function returns without freeing the allocated memory, causing a leak. The fix involved adding a call to dw_i3c_master_free_xfer() in the error path to ensure proper cleanup. The issue was discovered through static analysis and code review and affects the linux-hwe-edge product. The vulnerability is tracked as CVE-2026-45863 and has a CVSS 3.1 base score of 5.5 (AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H), indicating a moderate severity primarily due to potential availability impact.
Potential Impact
The vulnerability causes a memory leak that can lead to resource exhaustion and potential denial of service conditions. There is no impact on confidentiality or integrity. The attack vector requires local access with low privileges and no user interaction is needed. The scope is unchanged, meaning the vulnerability affects only the vulnerable component.
Mitigation Recommendations
A fix for this memory leak has been implemented in the Linux kernel source code. Since no explicit patch links or vendor advisories are provided, users should apply the latest kernel updates from their distribution to ensure the fix is included. Patch status is not yet confirmed from vendor advisories; check the official Linux kernel or distribution security advisories for the current remediation guidance.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-vj4h-mg95-pj35
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-45863"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Threat ID: 6a3ef7f027e9c79719035c7b
Added to database: 06/26/2026, 22:06:40 UTC
Last enriched: 08/01/2026, 02:50:08 UTC
Last updated: 09/14/2026, 22:01:34 UTC
Views: 94
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