CVE-2026-45863 Details
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.
A memory leak vulnerability has been identified in the Linux kernel I3C driver, specifically within the 'dw_i3c_master_i2c_xfers()' function. This issue arises because the function allocates memory for the transfer structure using 'dw_i3c_master_alloc_xfer()' but fails to free the memory if 'pm_runtime_resume_and_get()' encounters an error. As a result, the allocated memory is not released, leading to a memory leak. The vulnerability affects the Linux kernel stable tree.
The vulnerability has been addressed in the Linux kernel stable tree. Users can upgrade to the latest version to apply the fix.
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.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/140a45bd4f6db7d1b30cab967d29689b946c52fa | kernel.org | Patch |
| https://git.kernel.org/stable/c/2537089413514caaa9a5fdeeac3a34d45100f747 | kernel.org | Patch |
| https://git.kernel.org/stable/c/8e71414e252c1cb235911008a98fd47927d3a55c | kernel.org | Patch |
| https://git.kernel.org/stable/c/a2c41467ef42f69a3958493a0395ba75174710dc | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-401 | Missing Release of Memory after Effective Lifetime | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.11, < 6.12.75 >= 6.13, < 6.18.14 >= 6.19, < 6.19.4 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 25, 2026 | Initial Analysis | [email protected] |
| Jun 17, 2026 | CVE Modified | kernel.org |
| May 27, 2026 | New CVE Received | kernel.org |