CVE-2022-1158
High
Description
A flaw was found in KVM. When updating a guest's page table entry, vm_pgoff was improperly used as the offset to get the page's pfn. As vaddr and vm_pgoff are controllable by user-mode processes, this flaw allows unprivileged local users on the host to write outside the userspace region and potentially corrupt the kernel, resulting in a denial of service condition.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedAug 5, 2022
First seenAug 5, 2022
Weakness typeCWE-416Use after free
How to fix
Update
- linux linux_kernel5.4.189, 5.10.110, 5.15.33, 5.16.19, 5.17.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.2 ≤ v < 5.4.189, 5.5 ≤ v < 5.10.110, 5.11 ≤ v < 5.15.33, 5.16 ≤ v < 5.16.19, 5.17 ≤ v < 5.17.2 | 5.4.189, 5.10.110, 5.15.33, 5.16.19, 5.17.2 |
| fedoraproject fedora | 36 | — |
| redhat enterprise_linux | 8.0, 9.0 | — |
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