CVE-2026-72277KVM: arm64: nv: Inject SEA if guest VNCR isn't normal memory
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: nv: Inject SEA if guest VNCR isn't normal memory When constructing an L1 VNCR mapping, KVM unconditionally uses cacheable memory attributes, even if the underlying PFN isn't memory. This gets particularly hairy if the endpoint doesn't support cacheable memory attributes, potentially throwing an SError on writeback... While KVM does permit cacheable memory attributes on certain PFNMAP VMAs, kvm_translate_vncr() isn't currently grabbing the VMA. So do the simpler thing for now and just reject everything that isn't memory.
- 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
- Aug 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 2a359e072596fcb2e9e85017a865e3618a2fe5b5 before d5436e18e4fc2886ac306304d884ea3b92e1edbf; from 2a359e072596fcb2e9e85017a865e3618a2fe5b5 before bc00e0e376ee3572f5d26c174473abef1e35decc; from 2a359e072596fcb2e9e85017a865e3618a2fe5b5 before 4bd7dbe0b2243e6aa735cae4d5e1ff988b30b2a6 | CNA record |
References
- https://git.kernel.org/stable/c/d5436e18e4fc2886ac306304d884ea3b92e1edbf
- https://git.kernel.org/stable/c/bc00e0e376ee3572f5d26c174473abef1e35decc
- https://git.kernel.org/stable/c/4bd7dbe0b2243e6aa735cae4d5e1ff988b30b2a6
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.