{"id":"CVE-2025-37885","summary":"KVM: x86: Reset IRTE to host control if *new* route isn't postable","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: x86: Reset IRTE to host control if *new* route isn't postable\n\nRestore an IRTE back to host control (remapped or posted MSI mode) if the\n*new* GSI route prevents posting the IRQ directly to a vCPU, regardless of\nthe GSI routing type.  Updating the IRTE if and only if the new GSI is an\nMSI results in KVM leaving an IRTE posting to a vCPU.\n\nThe dangling IRTE can result in interrupts being incorrectly delivered to\nthe guest, and in the worst case scenario can result in use-after-free,\ne.g. if the VM is torn down, but the underlying host IRQ isn't freed.","modified":"2026-04-16T04:31:55.601553369Z","published":"2025-05-09T06:45:48.150Z","related":["SUSE-SU-2025:02846-1","SUSE-SU-2025:02853-1","SUSE-SU-2025:02923-1","SUSE-SU-2025:02969-1","SUSE-SU-2025:02996-1","SUSE-SU-2025:02997-1","SUSE-SU-2025:03011-1","SUSE-SU-2025:03023-1","SUSE-SU-2025:03272-1","SUSE-SU-2025:03290-1","SUSE-SU-2025:03301-1","SUSE-SU-2025:03382-1","SUSE-SU-2025:03602-1","SUSE-SU-2025:03628-1","SUSE-SU-2025:03633-1","SUSE-SU-2025:03634-1","SUSE-SU-2025:20577-1","SUSE-SU-2025:20586-1","SUSE-SU-2025:20601-1","SUSE-SU-2025:20602-1","SUSE-SU-2025:3716-1","SUSE-SU-2025:4149-1","SUSE-SU-2025:4320-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37885.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/023816bd5fa46fab94d1e7917fe131b79ed1fb41"},{"type":"WEB","url":"https://git.kernel.org/stable/c/116c7d35b8f72eac383b9fd371d7c1a8ffc2968b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3066ec21d1a33896125747f68638725f456308db"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3481fd96d801715942b6f69fe251133128156f30"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9bcac97dc42d2f4da8229d18feb0fe2b1ce523a2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b5de7ac74f69603ad803c524b840bffd36368fc3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e5f2dee9f7fcd2ff4b97869f3c66a0d89c167769"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/37xxx/CVE-2025-37885.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-37885"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"efc644048ecde54f016011fe10110addd0de348f"},{"fixed":"e5f2dee9f7fcd2ff4b97869f3c66a0d89c167769"},{"fixed":"116c7d35b8f72eac383b9fd371d7c1a8ffc2968b"},{"fixed":"023816bd5fa46fab94d1e7917fe131b79ed1fb41"},{"fixed":"3481fd96d801715942b6f69fe251133128156f30"},{"fixed":"b5de7ac74f69603ad803c524b840bffd36368fc3"},{"fixed":"3066ec21d1a33896125747f68638725f456308db"},{"fixed":"9bcac97dc42d2f4da8229d18feb0fe2b1ce523a2"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-37885.json"}}],"schema_version":"1.7.5"}