CVE-2026-72289KVM: arm64: vgic: Check the interrupt is still ours before migrating it
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 9.3 CRITICAL (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 0919e84c0fc1fc73525fdcedefab89ea8460f697 before 3893e1fcf6f306b327a8358dcd1cbd077989a240; from 0919e84c0fc1fc73525fdcedefab89ea8460f697 before cb3efe1a354f1638726725c3ecee1ce8d1a7e2dc; from 0919e84c0fc1fc73525fdcedefab89ea8460f697 before da2d249a39a1881681c303ceea33f38ba1c5bbeb; 0919e84c0fc1fc73525fdcedefab89ea8460f697 builds before 654be81c4c637af12709d47c7efc3302cd336513; from 0919e84c0fc1fc73525fdcedefab89ea8460f697 before e363c0bc0226dc5ea5046a88e9a6864b82c45399; 0919e84c0fc1fc73525fdcedefab89ea8460f697 builds before 79fdd2aa774e44847cd9bb7edc811e73e3dc7bfe; 0919e84c0fc1fc73525fdcedefab89ea8460f697 builds before 0658b09cba7fe866c6cd70cd2dcdfdcabe80328f; 0919e84c0fc1fc73525fdcedefab89ea8460f697 builds before 0074b82cdfcb5fd13710a0ac308ade68ac6f6fbe | CNA record |
References
- https://git.kernel.org/stable/c/3893e1fcf6f306b327a8358dcd1cbd077989a240
- https://git.kernel.org/stable/c/cb3efe1a354f1638726725c3ecee1ce8d1a7e2dc
- https://git.kernel.org/stable/c/da2d249a39a1881681c303ceea33f38ba1c5bbeb
- https://git.kernel.org/stable/c/654be81c4c637af12709d47c7efc3302cd336513
- https://git.kernel.org/stable/c/e363c0bc0226dc5ea5046a88e9a6864b82c45399
- https://git.kernel.org/stable/c/79fdd2aa774e44847cd9bb7edc811e73e3dc7bfe
- https://git.kernel.org/stable/c/0658b09cba7fe866c6cd70cd2dcdfdcabe80328f
- https://git.kernel.org/stable/c/0074b82cdfcb5fd13710a0ac308ade68ac6f6fbe
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.