CVE-2022-2153
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.
- Score
- CVSS 3.1 5.5 Medium
- Status
- Modified - secalert@redhat.com
- Published
- 2022-08-31
- Last modified
- 2026-10-14
- Weaknesses
- CWE-476
Affected products
- Debian Linux (Debian)
- Fedora (Fedoraproject)
- Linux Kernel (Linux)
- Enterprise Linux (Redhat)
- Simatic S7-1500 Tm Mfp - Gnulinux Subsystem (Siemens)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2069736
- https://www.openwall.com/lists/oss-security/2022/06/22/1
- https://github.com/torvalds/linux/commit/7ec37d1cbe17d8189d9562178d8b29167fe1c31a
- https://github.com/torvalds/linux/commit/00b5f37189d24ac3ed46cb7f11742094778c46ce
- 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://cert-portal.siemens.com/productcert/html/ssa-794697.html
