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)
In the Linux kernel, the following vulnerability has been resolved: i3c: dw: Fix memory leak in dw_i3c_master_i2c_xfers() The dw_i3c_master_i2c_xfers() function allocates memory for the xfer structure using dw_i3c_master_alloc_xfer(). If pm_runtime_resume_and_get() fails, the function returns without freeing the allocated xfer, resulting in a memory leak. Add a dw_i3c_master_free_xfer() call to the error path to ensure the allocated memory is properly freed. Compile tested only. Issue found using a prototype static analysis tool and code review.
AI Analysis
Technical Summary
The Linux kernel's dw_i3c_master_i2c_xfers() function improperly handles error conditions by not freeing allocated memory when pm_runtime_resume_and_get() fails, causing a memory leak (CWE-401). The vulnerability was identified via static analysis and code review. The resolution adds a call to dw_i3c_master_free_xfer() to ensure allocated memory is freed on error paths. This flaw affects kernel memory management but does not impact confidentiality or integrity, only availability due to resource leakage.
Potential Impact
The vulnerability causes a memory leak in the Linux kernel, which can degrade system availability over time by exhausting memory resources. There is no impact on confidentiality or integrity. No known exploits are reported in the wild.
Mitigation Recommendations
A fix has been implemented in the Linux kernel source code to free allocated memory on error paths in dw_i3c_master_i2c_xfers(). Since no patch links are provided, users should monitor official Linux kernel advisories and update to a version including this fix once available. Patch status is not yet confirmed — check the vendor advisory for 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
In the Linux kernel, the following vulnerability has been resolved: i3c: dw: Fix memory leak in dw_i3c_master_i2c_xfers() The dw_i3c_master_i2c_xfers() function allocates memory for the xfer structure using dw_i3c_master_alloc_xfer(). If pm_runtime_resume_and_get() fails, the function returns without freeing the allocated xfer, resulting in a memory leak. Add a dw_i3c_master_free_xfer() call to the error path to ensure the allocated memory is properly freed. Compile tested only. Issue found using a prototype static analysis tool and code review.
CVSS v3.1
Score 5.5medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Linux kernel's dw_i3c_master_i2c_xfers() function improperly handles error conditions by not freeing allocated memory when pm_runtime_resume_and_get() fails, causing a memory leak (CWE-401). The vulnerability was identified via static analysis and code review. The resolution adds a call to dw_i3c_master_free_xfer() to ensure allocated memory is freed on error paths. This flaw affects kernel memory management but does not impact confidentiality or integrity, only availability due to resource leakage.
Potential Impact
The vulnerability causes a memory leak in the Linux kernel, which can degrade system availability over time by exhausting memory resources. There is no impact on confidentiality or integrity. No known exploits are reported in the wild.
Mitigation Recommendations
A fix has been implemented in the Linux kernel source code to free allocated memory on error paths in dw_i3c_master_i2c_xfers(). Since no patch links are provided, users should monitor official Linux kernel advisories and update to a version including this fix once available. Patch status is not yet confirmed — check the vendor advisory for 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"]
- Ecosystems
- []
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Threat ID: 6a3ef7f027e9c79719035c7b
Added to database: 06/26/2026, 22:06:40 UTC
Last enriched: 06/26/2026, 22:51:06 UTC
Last updated: 07/31/2026, 19:30:24 UTC
Views: 8
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