{"id":"CVE-2026-72289","summary":"KVM: arm64: vgic: Check the interrupt is still ours before migrating it","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: arm64: vgic: Check the interrupt is still ours before migrating it\n\nvgic_prune_ap_list() drops both ap_list_lock and irq_lock while migrating\nan interrupt to another vCPU. After reacquiring the locks it only checks\nthat the affinity is unchanged (target_vcpu == vgic_target_oracle(irq))\nbefore moving the interrupt, which assumes that an interrupt whose affinity\nis preserved is still queued on this vCPU's ap_list.\n\nThat assumption no longer holds if the interrupt is taken off the ap_list\nwhile the locks are dropped. vgic_flush_pending_lpis() removes the\ninterrupt from the list and sets irq-\u003evcpu to NULL, but leaves\nenabled/pending/target_vcpu untouched. As the interrupt is still enabled\nand pending, vgic_target_oracle() returns the same target_vcpu, so the\naffinity check passes and list_del() is run a second time on an entry that\nhas already been removed.\n\nAlso check that the interrupt is still assigned to this vCPU\n(irq-\u003evcpu == vcpu) before moving it.","modified":"2026-08-18T03:56:55.556156196Z","published":"2026-08-15T05:55:10.870Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72289.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0074b82cdfcb5fd13710a0ac308ade68ac6f6fbe"},{"type":"WEB","url":"https://git.kernel.org/stable/c/0658b09cba7fe866c6cd70cd2dcdfdcabe80328f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3893e1fcf6f306b327a8358dcd1cbd077989a240"},{"type":"WEB","url":"https://git.kernel.org/stable/c/654be81c4c637af12709d47c7efc3302cd336513"},{"type":"WEB","url":"https://git.kernel.org/stable/c/79fdd2aa774e44847cd9bb7edc811e73e3dc7bfe"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cb3efe1a354f1638726725c3ecee1ce8d1a7e2dc"},{"type":"WEB","url":"https://git.kernel.org/stable/c/da2d249a39a1881681c303ceea33f38ba1c5bbeb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e363c0bc0226dc5ea5046a88e9a6864b82c45399"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72289.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72289"},{"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":"0919e84c0fc1fc73525fdcedefab89ea8460f697"},{"fixed":"3893e1fcf6f306b327a8358dcd1cbd077989a240"},{"fixed":"cb3efe1a354f1638726725c3ecee1ce8d1a7e2dc"},{"fixed":"da2d249a39a1881681c303ceea33f38ba1c5bbeb"},{"fixed":"654be81c4c637af12709d47c7efc3302cd336513"},{"fixed":"e363c0bc0226dc5ea5046a88e9a6864b82c45399"},{"fixed":"79fdd2aa774e44847cd9bb7edc811e73e3dc7bfe"},{"fixed":"0658b09cba7fe866c6cd70cd2dcdfdcabe80328f"},{"fixed":"0074b82cdfcb5fd13710a0ac308ade68ac6f6fbe"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72289.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.7.0"},{"fixed":"5.10.261"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.212"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.178"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.145"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.97"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.40"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72289.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"}]}