CVE-2026-45926 Details
Description
In the Linux kernel, the following vulnerability has been resolved: rust: pwm: Fix potential memory leak on init error When initializing a PWM chip using pwmchip_alloc(), the allocated device owns an initial reference that must be released on all error paths. If __pinned_init() were to fail, the allocated pwm_chip would currently leak because the error path returns without calling pwmchip_put().
A memory leak vulnerability has been identified in the Linux kernel's handling of Pulse Width Modulation (PWM) chips. When a PWM chip is initialized using the 'pwmchip_alloc()' function, the allocated device receives an initial reference that must be released if an error occurs. Currently, if the '__pinned_init()' function fails, the 'pwm_chip' object is not properly released, leading to a memory leak. This issue affects the Linux kernel stable tree.
Users can apply the patch available in the Linux kernel stable tree to address this vulnerability.
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/a2633dc243c35754a0c2270131d8a199c987c9bf | kernel.org | Patch |
| https://git.kernel.org/stable/c/baa8b7097d9cc68ff85819cf683972a58c2ce32b | 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 | >= 6.19, < 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 |