CVE-2025-37836 Details
Description
In the Linux kernel, the following vulnerability has been resolved: PCI: Fix reference leak in pci_register_host_bridge() If device_register() fails, call put_device() to give up the reference to avoid a memory leak, per the comment at device_register(). Found by code review. [bhelgaas: squash Dan Carpenter's double free fix from https://lore.kernel.org/r/[email protected]]
A vulnerability has been identified in the Linux kernel's PCI subsystem, specifically within the host bridge registration process. When the device_register() function fails, the pci_register_host_bridge() function does not properly release the reference to the device, leading to a memory leak. This issue has been addressed by modifying the error handling to call put_device(), thereby preventing the reference leak.
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/3297497ad2246eb9243849bfbbc57a0dea97d76e | kernel.org | Patch |
| https://git.kernel.org/stable/c/804443c1f27883926de94c849d91f5b7d7d696e9 | kernel.org | Patch |
| https://git.kernel.org/stable/c/9707d0c932f41006a2701afc926b232b50e356b4 | kernel.org | Patch |
| https://git.kernel.org/stable/c/b783478e0c53ffb4f04f25fb4e21ef7f482b05df | kernel.org | Patch |
| https://git.kernel.org/stable/c/bbba4c50a2d2a1d3f3bf31cc4b8280cb492bf2c7 | kernel.org | Patch |
| https://git.kernel.org/stable/c/bd2a352a0d72575f1842d28c14c10089f0cfe1ae | kernel.org | Patch |
| https://git.kernel.org/stable/c/f4db1b2c9ae3d013733c302ee70cac943b7070c0 | kernel.org | Patch |
| https://git.kernel.org/stable/c/f9208aec86226524ec1cb68a09ac70e974ea6536 | kernel.org | Patch |
| https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html | CVE | Mailing ListThird Party Advisory |
| https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html | CVE | Mailing ListThird Party Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-Other | Weakness Not in a Standard CWE Category | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 4.10, < 5.10.237 >= 5.11, < 5.15.181 >= 5.16, < 6.1.136 >= 6.2, < 6.6.89 >= 6.7, < 6.12.24 >= 6.13, < 6.13.12 >= 6.14, < 6.14.3 |
CPE
Remediation
| |
| debian debian linux | 11.0 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Nov 14, 2025 | Initial Analysis | [email protected] |
| Nov 3, 2025 | CVE Modified | CVE |
| May 9, 2025 | New CVE Received | kernel.org |