CVE-2021-47061
Published: Feb 29, 2024
Modified: May 23, 2026
Description
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.
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected f65886606c2d3b562716de030706dfe1bea4ed5e - < 03c6cccedd3913006744faa252a4da5145299343affected f65886606c2d3b562716de030706dfe1bea4ed5e - < 4e899ca848636b37e9ac124bc1723862a7d7d927affected f65886606c2d3b562716de030706dfe1bea4ed5e - < 30f46c6993731efb2a690c9197c0fd9ed425da2daffected f65886606c2d3b562716de030706dfe1bea4ed5e - < 2ee3757424be7c1cd1d0bbfa6db29a7edd82a250affected f0dfffce3f4ffd5f822568a4a6fb34c010e939d1+11 more versions |
Linux | Linux | affected 5.9unaffected 0 - < 5.9unaffected 5.10.37 - <= 5.10.*unaffected 5.11.21 - <= 5.11.*unaffected 5.12.4 - <= 5.12.*+1 more versions |
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