CVE-2026-72288Critical· 9.3▾ MidnightIn the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic: Handle race between interrupt affinity change and LPI disabling Hyunwoo Kim reports some really bad races should the following situation occur: - LP…
▾ 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: Handle race between interrupt affinity change and LPI disabling
Hyunwoo Kim reports some really bad races should the following situation occur:
If the last two race nicely enough, vgic_prune_ap_list() can drop the irq and AP list locks, reacquire them, and in the interval the irq has been freed. UAF follows.
The fix is two-fold:
Before dropping the irq and ap_list locks, take a reference on the irq
Do not try to handle migration of the pending bit: there is no expectation that this state is retained, as per the architecture
With that, we're sure that the interrupt is still around, and we safely remove it from the AP list as it has no target at this stage (unless another interrupt fires, but that's another story).
Linux >= 5dd4b924e390af426e424d5e52c1b4d1566af817 < d19dca8194ebed371e624331c6be2cb73b562cafLinux >= 5dd4b924e390af426e424d5e52c1b4d1566af817 < b1a89d12d35a8256d2b170ced0b1c86851f3def2Linux >= 5dd4b924e390af426e424d5e52c1b4d1566af817 < 7258770e5814f15e8308ebda82ac9acf6964ba8eLinux 4.8Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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