CVE-2022-1263
Medium
Description
A NULL pointer dereference issue was found in KVM when releasing a vCPU with dirty ring support enabled. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedAug 31, 2022
First seenAug 31, 2022
Weakness typeCWE-476NULL pointer dereference
How to fix
Update
- linux linux_kernel5.18 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 5.18, 5.18 | 5.18 |
| redhat enterprise_linux | 8.0, 9.0 | — |
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