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CVE-2026-43200
MEDIUM · CVSS 5.5
EPSS exploitation probability: 0%
Published 2026-05-06T12:16:39.090 · Last modified 2026-06-17T10:49:08.443

Summary

In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: Fix swapped parameters in pci_{primary/secondary}_epc_epf_unlink() functions struct configfs_item_operations callbacks are defined like the following: int (*allow_link)(struct config_item *src, struct config_item *target); void (*drop_link)(struct config_item *src, struct config_item *target); While pci_primary_epc_epf_link() and pci_secondary_epc_epf_link() specify the parameters in the correct order, pci_primary_epc_epf_unlink() and pci_secondary_epc_epf_unlink() specify the parameters in the wrong order, leading to the below kernel crash when using the unlink command in configfs: Unable to handle kernel paging request at virtual address 0000000300000857 Mem abort info: ... pc : string+0x5

Affected products

linux — linux_kernel

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References

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