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Change History

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

KVM: Destroy I/O bus devices on unregister failure _after_ sync'ing SRCU

If allocating a new instance of an I/O bus fails when unregistering a
device, wait to destroy the device until after all readers are guaranteed
to see the new null bus.  Destroying devices before the bus is nullified
could lead to use-after-free since readers expect the devices on their
reference of the bus to remain valid.

Linux https://git.kernel.org/stable/c/03c6cccedd3913006744faa252a4da5145299343 [No types assigned]

Linux https://git.kernel.org/stable/c/2ee3757424be7c1cd1d0bbfa6db29a7edd82a250 [No types assigned]

Linux https://git.kernel.org/stable/c/30f46c6993731efb2a690c9197c0fd9ed425da2d [No types assigned]

Linux https://git.kernel.org/stable/c/4e899ca848636b37e9ac124bc1723862a7d7d927 [No types assigned]