{"id":"CVE-2026-72289","title":"KVM: arm64: vgic: Check the interrupt is still ours before migrating it","summary":"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 anoth…","severity":"critical","cvss":9.3,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= 0919e84c0fc1fc73525fdcedefab89ea8460f697 < 3893e1fcf6f306b327a8358dcd1cbd077989a240","Linux >= 0919e84c0fc1fc73525fdcedefab89ea8460f697 < cb3efe1a354f1638726725c3ecee1ce8d1a7e2dc","Linux >= 0919e84c0fc1fc73525fdcedefab89ea8460f697 < da2d249a39a1881681c303ceea33f38ba1c5bbeb","Linux >= 0919e84c0fc1fc73525fdcedefab89ea8460f697 < 654be81c4c637af12709d47c7efc3302cd336513","Linux >= 0919e84c0fc1fc73525fdcedefab89ea8460f697 < e363c0bc0226dc5ea5046a88e9a6864b82c45399","Linux >= 0919e84c0fc1fc73525fdcedefab89ea8460f697 < 79fdd2aa774e44847cd9bb7edc811e73e3dc7bfe","Linux >= 0919e84c0fc1fc73525fdcedefab89ea8460f697 < 0658b09cba7fe866c6cd70cd2dcdfdcabe80328f","Linux >= 0919e84c0fc1fc73525fdcedefab89ea8460f697 < 0074b82cdfcb5fd13710a0ac308ade68ac6f6fbe","Linux 4.7"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T18:45:52.646883Z"},"published":"2026-08-15","updated":"2026-10-16","sourceUpdated":"2026-10-16T18:55:15.201Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-72289","references":[{"url":"https://git.kernel.org/stable/c/3893e1fcf6f306b327a8358dcd1cbd077989a240"},{"url":"https://git.kernel.org/stable/c/cb3efe1a354f1638726725c3ecee1ce8d1a7e2dc"},{"url":"https://git.kernel.org/stable/c/da2d249a39a1881681c303ceea33f38ba1c5bbeb"},{"url":"https://git.kernel.org/stable/c/654be81c4c637af12709d47c7efc3302cd336513"},{"url":"https://git.kernel.org/stable/c/e363c0bc0226dc5ea5046a88e9a6864b82c45399"},{"url":"https://git.kernel.org/stable/c/79fdd2aa774e44847cd9bb7edc811e73e3dc7bfe"},{"url":"https://git.kernel.org/stable/c/0658b09cba7fe866c6cd70cd2dcdfdcabe80328f"},{"url":"https://git.kernel.org/stable/c/0074b82cdfcb5fd13710a0ac308ade68ac6f6fbe"}],"tags":["cve.org"],"epss":0.00185,"epssPercentile":0.07563,"ingestedAt":"2026-10-16T19:46:24.412Z","slug":"CVE-2026-72289","body":"## Overview\n\nIn 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->vcpu 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->vcpu == vcpu) before moving it.\n\n## Affected\n\n- `Linux >= 0919e84c0fc1fc73525fdcedefab89ea8460f697 < 3893e1fcf6f306b327a8358dcd1cbd077989a240`\n- `Linux >= 0919e84c0fc1fc73525fdcedefab89ea8460f697 < cb3efe1a354f1638726725c3ecee1ce8d1a7e2dc`\n- `Linux >= 0919e84c0fc1fc73525fdcedefab89ea8460f697 < da2d249a39a1881681c303ceea33f38ba1c5bbeb`\n- `Linux >= 0919e84c0fc1fc73525fdcedefab89ea8460f697 < 654be81c4c637af12709d47c7efc3302cd336513`\n- `Linux >= 0919e84c0fc1fc73525fdcedefab89ea8460f697 < e363c0bc0226dc5ea5046a88e9a6864b82c45399`\n- `Linux >= 0919e84c0fc1fc73525fdcedefab89ea8460f697 < 79fdd2aa774e44847cd9bb7edc811e73e3dc7bfe`\n- `Linux >= 0919e84c0fc1fc73525fdcedefab89ea8460f697 < 0658b09cba7fe866c6cd70cd2dcdfdcabe80328f`\n- `Linux >= 0919e84c0fc1fc73525fdcedefab89ea8460f697 < 0074b82cdfcb5fd13710a0ac308ade68ac6f6fbe`\n- `Linux 4.7`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":51,"depthScoreParts":{"impact":51.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}