A NULL pointer dereference was found in the Linux kernel's KVM when dirty ring logging is enabled without an active vCPU context. An unprivileged local attacker on the host may use this flaw to cause a kernel oops condition and thus a denial of service by issuing a KVM_XEN_HVM_SET_ATTR ioctl. This flaw affects Linux kernel versions prior to 5.17-rc1.
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Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: redhat
Published: 2022-03-08T14:05:00
Updated: 2024-08-03T17:16:03.545Z
Reserved: 2021-12-10T00:00:00
Link: CVE-2021-4095
Vulnrichment
No data.
NVD
Status : Modified
Published: 2022-03-10T17:44:53.563
Modified: 2023-11-07T03:40:10.533
Link: CVE-2021-4095
Redhat