Bug 2267171 (CVE-2021-47062) - CVE-2021-47062 kernel: KVM: SVM: null pointer in online_vcpus, not created_vcpus, to iterate over vCPUs
Summary: CVE-2021-47062 kernel: KVM: SVM: null pointer in online_vcpus, not created_vc...
Keywords:
Status: NEW
Alias: CVE-2021-47062
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2267172
Blocks: 2267188
TreeView+ depends on / blocked
 
Reported: 2024-03-01 04:56 UTC by Avinash Hanwate
Modified: 2024-06-20 11:50 UTC (History)
50 users (show)

Fixed In Version: kernel 5.11.21, kernel 5.12.4, kernel 5.13
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description Avinash Hanwate 2024-03-01 04:56:39 UTC 
In the Linux kernel, the following vulnerability has been resolved:

KVM: SVM: Use online_vcpus, not created_vcpus, to iterate over vCPUs

The Linux kernel CVE team has assigned CVE-2021-47062 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024022953-CVE-2021-47062-ed39@gregkh/T/#u
Comment 1 Avinash Hanwate 2024-03-01 04:57:18 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2267172]
Comment 5 Justin M. Forbes 2024-03-01 21:09:21 UTC 
This was fixed for Fedora with the 5.12.4 stable kernel updates.
Comment 7 Alex 2024-06-09 15:04:58 UTC 
The result of automatic check (that is developed by Alexander Larkin) for this CVE-2021-47062 is: CHECK	Maybe valid. Check manually. with impact MODERATE (that is approximation based on flags VIRT SIMPLEFIX  ; these flags parsed automatically based on patche data). Such automatic check happens only for Low/Moderates (and only when not from reporter, but parsing already existing CVE). Highs always checked manually (I check it myself and then we check it again in Remediation team). In rare cases some of the Moderates could be increased to High later.
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