CVE-2026-72289Critical· 9.3▾ MidnightIn the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic: Check the interrupt is still ours before migrating it vgic_prune_ap_list() drops both ap_list_lock and irq_lock while migrating an interrupt to anoth…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 51.2 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
In the Linux kernel, the following vulnerability has been resolved:
KVM: arm64: vgic: Check the interrupt is still ours before migrating it
vgic_prune_ap_list() drops both ap_list_lock and irq_lock while migrating an interrupt to another vCPU. After reacquiring the locks it only checks that the affinity is unchanged (target_vcpu == vgic_target_oracle(irq)) before moving the interrupt, which assumes that an interrupt whose affinity is preserved is still queued on this vCPU's ap_list.
That assumption no longer holds if the interrupt is taken off the ap_list while the locks are dropped. vgic_flush_pending_lpis() removes the interrupt from the list and sets irq->vcpu to NULL, but leaves enabled/pending/target_vcpu untouched. As the interrupt is still enabled and pending, vgic_target_oracle() returns the same target_vcpu, so the affinity check passes and list_del() is run a second time on an entry that has already been removed.
Also check that the interrupt is still assigned to this vCPU (irq->vcpu == vcpu) before moving it.
Linux >= 0919e84c0fc1fc73525fdcedefab89ea8460f697 < 3893e1fcf6f306b327a8358dcd1cbd077989a240Linux >= 0919e84c0fc1fc73525fdcedefab89ea8460f697 < cb3efe1a354f1638726725c3ecee1ce8d1a7e2dcLinux >= 0919e84c0fc1fc73525fdcedefab89ea8460f697 < da2d249a39a1881681c303ceea33f38ba1c5bbebLinux >= 0919e84c0fc1fc73525fdcedefab89ea8460f697 < 654be81c4c637af12709d47c7efc3302cd336513Linux >= 0919e84c0fc1fc73525fdcedefab89ea8460f697 < e363c0bc0226dc5ea5046a88e9a6864b82c45399Linux >= 0919e84c0fc1fc73525fdcedefab89ea8460f697 < 79fdd2aa774e44847cd9bb7edc811e73e3dc7bfeLinux >= 0919e84c0fc1fc73525fdcedefab89ea8460f697 < 0658b09cba7fe866c6cd70cd2dcdfdcabe80328fLinux >= 0919e84c0fc1fc73525fdcedefab89ea8460f697 < 0074b82cdfcb5fd13710a0ac308ade68ac6f6fbeLinux 4.7Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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