In the Linux kernel, the following vulnerability has been resolved: s390/pci: Fix missing device lock in zpci_report_status() When pdev is non-NULL, zpci_report_status() accesses the device's driver. To get a consistent state matching the recovery, the device lock needs to be held. Do so by expanding the existing device lock critical section. The lock only needs to be held when the pdev is non-NULL, so extract the pdev-specific reporting into a helper function which also adds a lockdep assertion to detect calls without the device lock held.
https://git.kernel.org/stable/c/743a8458978d13d84a1cf74bcd29b9959a75d3a0
https://git.kernel.org/stable/c/1b957d5c2f737cda731cb1a1b71a7524d54538f2
https://git.kernel.org/stable/c/0261aef4b15efcee2860ab857e5cb05e9bfa47b0