Riskcovery

CVE-2025-37946

s390/pci: Fix duplicate pci_dev_put() in disable_slot() when PF has child VFs

State
Published
Severity
Not scored
Published
May 20, 2025
Updated
May 11, 2026
Reserved
Apr 16, 2025

Read the record on cve.org

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().

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • bcb5d6c769039c8358a2359e7c3ea5d97ce93108 to before c488f8b53e156d6dcc0514ef0afa3a33376b8f9eAffected
  • bcb5d6c769039c8358a2359e7c3ea5d97ce93108 to before 957529baef142d95e0d1b1bea786675bd47dbe53Affected
  • bcb5d6c769039c8358a2359e7c3ea5d97ce93108 to before 05a2538f2b48500cf4e8a0a0ce76623cc5bafcf1Affected
LinuxLinux
  • 6.9Affected
  • before 6.9Not affected
  • 6.12.29 through 6.12.*Not affected
  • 6.14.7 through 6.14.*Not affected
  • 6.15 and laterNot affected

References

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