medium5.5
CVE-2022-2153
A flaw was found in the Linux kernel’s KVM when attempting to set a SynIC IRQ.
Impact
A flaw was found in the Linux kernel’s KVM when attempting to set a SynIC IRQ. This issue makes it possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. 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 |
| Fedoraproject | Fedora | Version 36 |
| Redhat | Enterprise Linux | Versions 6.0, 7.0, 8.0, 9.0 |
| Debian | Debian Linux | Version 10.0 |
Weakness classification
References
- NVD record
- CVE.org record
- https://bugzilla.redhat.com/show_bug.cgi?id=2069736
- https://github.com/torvalds/linux/commit/00b5f37189d24ac3ed46cb7f11742094778c46ce
- https://github.com/torvalds/linux/commit/7ec37d1cbe17d8189d9562178d8b29167fe1c31a
- https://github.com/torvalds/linux/commit/b1e34d325397a33d97d845e312d7cf2a8b646b44
- https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html
- https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
- https://www.openwall.com/lists/oss-security/2022/06/22/1
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html