CVE-2024-46750

In the Linux kernel, the following vulnerability has been resolved: PCI: Add missing bridge lock to pcibuslock One of the true positives that the cfgaccesslock lockdep effort identified is this sequence: WARNING: CPU: 14 PID: 1 at drivers/pci/pci.c:4886 pcibridgesecondarybusreset+0x5d/0x70 RIP:...

CVE-2024-46750 PCI: Add missing bridge lock to pci_bus_lock()

In the Linux kernel, the following vulnerability has been resolved: PCI: Add missing bridge lock to pcibuslock One of the true positives that the cfgaccesslock lockdep effort identified is this sequence: WARNING: CPU: 14 PID: 1 at drivers/pci/pci.c:4886 pcibridgesecondarybusreset+0x5d/0x70 RIP:...

CVE-2024-46750

CVE-2024-46750 (Linux kernel) : The vulnerability arises from missing bridge locking in PCI subsystem, specifically the bridge itself not being locked when resetting the bus. The fix adds the bridge lock path by acquiring pci_dev_lock() for the upstream bridge’s bridge self (in pci_reset_function...