{"id":"CVE-2025-23141","revision":null,"records":[{"revision":"ac725ceaeba341bdb7e305097327568d","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-23141","aliases":[],"title":"KVM: x86: Acquire SRCU in KVM_GET_MP_STATE to protect guest memory accesses","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: x86: Acquire SRCU in KVM_GET_MP_STATE to protect guest memory accesses\n\nAcquire a lock on kvm->srcu when userspace is getting MP state to handle a\nrather extreme edge case where \"accepting\" APIC events, i.e. processing\npending INIT or SIPI, can trigger accesses to guest memory. If the vCPU\nis in L2 with INIT *and* a TRIPLE_FAULT request pending, then getting MP\nstate will trigger a nested VM-Exit by way of ->check_nested_events(), and\nemuating the nested VM-Exit can access guest memory.\n\nThe splat was originally hit by syzkaller on a Google-internal kernel, and\nreproduced on an upstream kernel by hacking the triple_fault_event_test\nselftest to stuff a pending INIT, store an MSR on VM-Exit (to generate a\nmemory access on VMX), and do vcpu_mp_state_get() to trigger the scenario.\n\n =============================\n WARNING: suspicious RCU usage\n 6.14.0-rc3-b112d356288b-vmx/pi_lockdep_false_pos-lock #3 Not tainted\n -----------------------------\n include/linux/kvm_host.h:1058 suspicious rcu_dereference_check() usage!\n\n other info that might help us debug this:\n\n rcu_scheduler_active = 2, debug_locks = 1\n 1 lock held by triple_fault_ev/1256:\n #0: ffff88810df5a330 (&vcpu->mutex){+.+.}-{4:4}, at: kvm_vcpu_ioctl+0x8b/0x9a0 [kvm]\n\n stack backtrace:\n CPU: 11 UID: 1000 PID: 1256 Comm: triple_fault_ev Not tainted 6.14.0-rc3-b112d356288b-vmx #3\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015\n Call Trace:\n \n dump_stack_lvl+0x7f/0x90\n lockdep_rcu_suspicious+0x144/0x190\n kvm_vcpu_gfn_to_memslot+0x156/0x180 [kvm]\n kvm_vcpu_read_guest+0x3e/0x90 [kvm]\n read_and_check_msr_entry+0x2e/0x180 [kvm_intel]\n __nested_vmx_vmexit+0x550/0xde0 [kvm_intel]\n kvm_check_nested_events+0x1b/0x30 [kvm]\n kvm_apic_accept_events+0x33/0x100 [kvm]\n kvm_arch_vcpu_ioctl_get_mpstate+0x30/0x1d0 [kvm]\n kvm_vcpu_ioctl+0x33e/0x9a0 [kvm]\n __x64_sys_ioctl+0x8b/0xb0\n do_syscall_64+0x6c/0x170\n entry_SYSCALL_64_after_hwframe+0x4b/0x53\n ","state":0,"publishedAt":"2025-05-01T12:55:31.525+00:00","modifiedAt":"2026-10-15T21:51:58.554+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"arch/x86/kvm/x86.c\"\n ],\n \"versions\": [\n {\n \"version\": \"1c96dcceaeb3a99aaf0d548eef2223e0b02a7e40\",\n \"lessThan\": \"56d997b257075951a46663970cd350cd5e34c041\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"1c96dcceaeb3a99aaf0d548eef2223e0b02a7e40\",\n \"lessThan\": \"0357c8406dfa09430dd9858ebe813feb65524b6e\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"1c96dcceaeb3a99aaf0d548eef2223e0b02a7e40\",\n \"lessThan\": \"8a3df0aa1087a89f5ce55f4aba816bfcb1ecf1be\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"1c96dcceaeb3a99aaf0d548eef2223e0b02a7e40\",\n \"lessThan\": \"7bc5c360375d28ba5ef6298b0d53e735c81d66a1\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"1c96dcceaeb3a99aaf0d548eef2223e0b02a7e40\",\n \"lessThan\": \"f5cbe725b7477b4cd677be1b86b4e08f90572997\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"1c96dcceaeb3a99aaf0d548eef2223e0b02a7e40\",\n \"lessThan\": \"592e040572f216d916f465047c8ce4a308fcca44\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"1c96dcceaeb3a99aaf0d548eef2223e0b02a7e40\",\n \"lessThan\": \"ef01cac401f18647d62720cf773d7bb0541827da\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"arch/x86/kvm/x86.c\"\n ],\n \"versions\": [\n {\n \"version\": \"5.11\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"5.11\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.209\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.135\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.88\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.24\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.13.12\",\n \"lessThanOrEqual\": \"6.13.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.14.3\",\n \"lessThanOrEqual\": \"6.14.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.15\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/56d997b257075951a46663970cd350cd5e34c041","https://git.kernel.org/stable/c/0357c8406dfa09430dd9858ebe813feb65524b6e","https://git.kernel.org/stable/c/8a3df0aa1087a89f5ce55f4aba816bfcb1ecf1be","https://git.kernel.org/stable/c/7bc5c360375d28ba5ef6298b0d53e735c81d66a1","https://git.kernel.org/stable/c/f5cbe725b7477b4cd677be1b86b4e08f90572997","https://git.kernel.org/stable/c/592e040572f216d916f465047c8ce4a308fcca44","https://git.kernel.org/stable/c/ef01cac401f18647d62720cf773d7bb0541827da"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-23141","license":"CVE Program Terms of Use","key":"cve-program:CVE-2025-23141","identifiers":["CVE-2025-23141"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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