CVE-2021-47061
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2021
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
KVM: Destroy I/O bus devices on unregister failure _after_ sync'ing SRCU
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| f65886606c2d3b562716de030706dfe1bea4ed5e | affected | git | 03c6cccedd3913006744faa252a4da5145299343 | Unavailable | None listed |
| f65886606c2d3b562716de030706dfe1bea4ed5e | affected | git | 4e899ca848636b37e9ac124bc1723862a7d7d927 | Unavailable | None listed |
| f65886606c2d3b562716de030706dfe1bea4ed5e | affected | git | 30f46c6993731efb2a690c9197c0fd9ed425da2d | Unavailable | None listed |
| f65886606c2d3b562716de030706dfe1bea4ed5e | affected | git | 2ee3757424be7c1cd1d0bbfa6db29a7edd82a250 | Unavailable | None listed |
| f0dfffce3f4ffd5f822568a4a6fb34c010e939d1 | affected | git | Unavailable | Unavailable | None listed |
| 840e124f89a5127e7eb97ebf377f4b8ca745c070 | affected | git | Unavailable | Unavailable | None listed |
| 40a023f681befd9b2862a3c16fb306a38b359ae5 | affected | git | Unavailable | Unavailable | None listed |
| 19184bd06f488af62924ff1747614a8cb284ad63 | affected | git | Unavailable | Unavailable | None listed |
| 41b2ea7a6a11e2b1a7f2c29e1675a709a6b2b98d | affected | git | Unavailable | Unavailable | None listed |
| 68c125324b5e1d1d22805653735442923d896a1d | affected | git | Unavailable | Unavailable | None listed |
| 4.4.238 | affected | semver | 4.5 | Unavailable | None listed |
| 4.9.238 | affected | semver | 4.10 | Unavailable | None listed |
| 4.14.200 | affected | semver | 4.15 | Unavailable | None listed |
| 4.19.148 | affected | semver | 4.20 | Unavailable | None listed |
| 5.4.66 | affected | semver | 5.5 | Unavailable | None listed |
| 5.8.10 | affected | semver | 5.9 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.9 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.9 | Unavailable | None listed |
| 5.10.37 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.11.21 | unaffected | semver | Unavailable | 5.11.* | None listed |
| 5.12.4 | unaffected | semver | Unavailable | 5.12.* | None listed |
| 5.13 | unaffected | original_commit_for_fix | Unavailable | * | None listed |