CVE-2025-37836: Linux kernel · PCI: Fix reference leak in pci_register_host_bridge()
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 5 Nov 2026, 21:49 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
Thin evidence
One scorer or noneExploitation evidence
Disclosed: evidence found.
CVE published 9 May 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
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/db806a6c-a91b-4e5a-a84b-6b7e01bdac85@stanley.mountain]
References
- git.kernel.org/stable/c/f4db1b2c9ae3d013733c302ee70cac943b7070c0 (opens in a new tab)
- git.kernel.org/stable/c/3297497ad2246eb9243849bfbbc57a0dea97d76e (opens in a new tab)
- git.kernel.org/stable/c/b783478e0c53ffb4f04f25fb4e21ef7f482b05df (opens in a new tab)
- git.kernel.org/stable/c/bd2a352a0d72575f1842d28c14c10089f0cfe1ae (opens in a new tab)
- git.kernel.org/stable/c/9707d0c932f41006a2701afc926b232b50e356b4 (opens in a new tab)
- git.kernel.org/stable/c/bbba4c50a2d2a1d3f3bf31cc4b8280cb492bf2c7 (opens in a new tab)
- git.kernel.org/stable/c/f9208aec86226524ec1cb68a09ac70e974ea6536 (opens in a new tab)
- git.kernel.org/stable/c/804443c1f27883926de94c849d91f5b7d7d696e9 (opens in a new tab)
- lists.debian.org/debian-lts-announce/2025/05/msg00045.html (opens in a new tab)
- lists.debian.org/debian-lts-announce/2025/05/msg00030.html (opens in a new tab)