CVE-2021-47061 (GCVE-0-2021-47061)
Vulnerability from cvelistv5
Published
2024-02-29 22:37
Modified
2025-05-04 12:41
Severity ?
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: f65886606c2d3b562716de030706dfe1bea4ed5e
Version: f65886606c2d3b562716de030706dfe1bea4ed5e
Version: f65886606c2d3b562716de030706dfe1bea4ed5e
Version: f65886606c2d3b562716de030706dfe1bea4ed5e
Version: f0dfffce3f4ffd5f822568a4a6fb34c010e939d1
Version: 840e124f89a5127e7eb97ebf377f4b8ca745c070
Version: 40a023f681befd9b2862a3c16fb306a38b359ae5
Version: 19184bd06f488af62924ff1747614a8cb284ad63
Version: 41b2ea7a6a11e2b1a7f2c29e1675a709a6b2b98d
Version: 68c125324b5e1d1d22805653735442923d896a1d
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      "cveMetadata": "{\"cveId\": \"CVE-2021-47061\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T12:41:01.255Z\", \"dateReserved\": \"2024-02-29T22:33:44.294Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-02-29T22:37:35.689Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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