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.
Fix
Patch, vendor advisory and mitigation references on NVD 10
- https://bugzilla.redhat.com/show_bug.cgi?id=2069736 Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/00b5f37189d24ac3ed46cb7f11742094778c46ce Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/7ec37d1cbe17d8189d9562178d8b29167fe1c31a Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/b1e34d325397a33d97d845e312d7cf2a8b646b44 Patch, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2022/06/22/1 Exploit, Mailing List, Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2069736 Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/00b5f37189d24ac3ed46cb7f11742094778c46ce Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/7ec37d1cbe17d8189d9562178d8b29167fe1c31a Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/b1e34d325397a33d97d845e312d7cf2a8b646b44 Patch, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2022/06/22/1 Exploit, Mailing List, Patch, Third Party Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 5.5 · linux, fedoraproject, redhatNVD modified 2026-10-14 13:17
Affected (CPE criteria) 7
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
References 15
- https://bugzilla.redhat.com/show_bug.cgi?id=2069736 Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/00b5f37189d24ac3ed46cb7f11742094778c46ce Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/7ec37d1cbe17d8189d9562178d8b29167fe1c31a Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/b1e34d325397a33d97d845e312d7cf2a8b646b44 Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html Mailing List, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2022/06/22/1 Exploit, Mailing List, Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2069736 Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/00b5f37189d24ac3ed46cb7f11742094778c46ce Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/7ec37d1cbe17d8189d9562178d8b29167fe1c31a Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/b1e34d325397a33d97d845e312d7cf2a8b646b44 Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html Mailing List, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2022/06/22/1 Exploit, Mailing List, Patch, Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html