Description (CNA)
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().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected bcb5d6c769039c8358a2359e7c3ea5d97ce93108 before c488f8b53e156d6dcc0514ef0afa3a33376b8f9e; affected bcb5d6c769039c8358a2359e7c3ea5d97ce93108 before 957529baef142d95e0d1b1bea786675bd47dbe53; affected bcb5d6c769039c8358a2359e7c3ea5d97ce93108 before 05a2538f2b48500cf4e8a0a0ce76623cc5bafcf1 |
| Linux / Linux | affected 6.9; unaffected 0 before 6.9; unaffected 6.12.29 through 6.12.*; unaffected 6.14.7 through 6.14.*; unaffected 6.15 through * |
CWE
No CWE identifiers supplied.