Vulnerability CVE-2024-43875
Published: 2024-08-21

Description:
In the Linux kernel, the following vulnerability has been resolved:

PCI: endpoint: Clean up error handling in vpci_scan_bus()

Smatch complains about inconsistent NULL checking in vpci_scan_bus():

drivers/pci/endpoint/functions/pci-epf-vntb.c:1024 vpci_scan_bus() error: we previously assumed 'vpci_bus' could be null (see line 1021)

Instead of printing an error message and then crashing we should return
an error code and clean up.

Also the NULL check is reversed so it prints an error for success
instead of failure.

 References:
https://git.kernel.org/stable/c/24414c842a24d0fd498f9db6d2a762a8dddf1832
https://git.kernel.org/stable/c/7d368de78b60088ec9031c60c88976c0063ea4c0
https://git.kernel.org/stable/c/0e27e2e8697b8ce96cdef43f135426525d9d1f8f
https://git.kernel.org/stable/c/b9e8695246bcfc028341470cbf92630cdc1ba36b
https://git.kernel.org/stable/c/8e0f5a96c534f781e8c57ca30459448b3bfe5429
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