medium5.5
CVE-2022-1263
A NULL pointer dereference issue was found in KVM when releasing a vCPU with dirty ring support enabled.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | before 5.18 Version 5.18 |
| Redhat | Enterprise Linux | Versions 8.0, 9.0 |
Weakness classification
References
- NVD record
- CVE.org record
- https://access.redhat.com/security/cve/CVE-2022-1263
- https://bugzilla.redhat.com/show_bug.cgi?id=2072698
- https://github.com/torvalds/linux/commit/5593473a1e6c743764b08e3b6071cb43b5cfa6c4
- https://www.openwall.com/lists/oss-security/2022/04/07/1
- https://access.redhat.com/security/cve/CVE-2022-1263
- https://bugzilla.redhat.com/show_bug.cgi?id=2072698
- https://github.com/torvalds/linux/commit/5593473a1e6c743764b08e3b6071cb43b5cfa6c4
- https://www.openwall.com/lists/oss-security/2022/04/07/1