Bug 2266924 (CVE-2021-46977) - CVE-2021-46977 kernel: KVM: VMX: Disable preemption when probing user return MSRs
Summary: CVE-2021-46977 kernel: KVM: VMX: Disable preemption when probing user return ...
Keywords:
Status: NEW
Alias: CVE-2021-46977
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: 2266925
Blocks: 2266939
TreeView+ depends on / blocked
 
Reported: 2024-02-29 08:54 UTC by Avinash Hanwate
Modified: 2024-06-09 12:37 UTC (History)
50 users (show)

Fixed In Version: kernel 5.10.38, kernel 5.11.22, kernel 5.12.5, kernel 5.13
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Description Avinash Hanwate 2024-02-29 08:54:07 UTC
In the Linux kernel, the following vulnerability has been resolved:

KVM: VMX: Disable preemption when probing user return MSRs

The Linux kernel CVE team has assigned CVE-2021-46977 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024022822-CVE-2021-46977-76be@gregkh/T/#u

Comment 1 Avinash Hanwate 2024-02-29 08:54:47 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2266925]

Comment 5 Justin M. Forbes 2024-02-29 21:36:23 UTC
This was fixed for Fedora with the 5.12.5 stable kernel updates.

Comment 6 Alex 2024-06-09 12:37:56 UTC
The result of automatic check (that is developed by Alexander Larkin) for this CVE-2021-46977 is: 	SKIP	The Fixes patch not applied yet, so unlikely that actual: 4be5341026246870818e28b53202b001426a5aec	YES			NO	YES	unknown (where first YES/NO value means if related sources built).


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