CVE-2025-37946
HIGH EPSS 5.0%
Published May 20, 20251y ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
Published May 20, 2025 1y ago
Last Modified Jun 17, 2026 1w ago
Description
In the Linux kernel, the following vulnerability has been resolved: s390/pci: Fix duplicate pci_dev_put() in disable_slot() when PF has child VFs With commit bcb5d6c76903 ("s390/pci: introduce lock to synchronize state of zpci_dev's") the code to ignore power off of a PF that has child VFs was changed from a direct return to a goto to the unlock and pci_dev_put() section. The change however left the existing pci_dev_put() untouched resulting in a doubple put. This can subsequently cause a use after free if the struct pci_dev is released in an unexpected state. Fix this by removing the extra pci_dev_put().
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
5.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available
Weaknesses 1
CWE-416 Use After Free Memory Safety
Affected Products 7
References 3
- git.kernel.org https://git.kernel.org/stable/c/05a2538f2b48500cf4e8a0a0ce76623cc5bafcf1
- git.kernel.org https://git.kernel.org/stable/c/957529baef142d95e0d1b1bea786675bd47dbe53
- git.kernel.org https://git.kernel.org/stable/c/c488f8b53e156d6dcc0514ef0afa3a33376b8f9e
Remediation
- git.kernel.org https://git.kernel.org/stable/c/05a2538f2b48500cf4e8a0a0ce76623cc5bafcf1
- git.kernel.org https://git.kernel.org/stable/c/957529baef142d95e0d1b1bea786675bd47dbe53
- git.kernel.org https://git.kernel.org/stable/c/c488f8b53e156d6dcc0514ef0afa3a33376b8f9e