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CVE-2026-72280— KVM: arm64: nv: Drop bogus WARN for write to ZCR_EL2

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel 6.11版本存在安全漏洞，该漏洞源于对ZCR_EL2系统寄存器写入时触发虚假警告，可能导致hyp_panic。

CVSS 7.1 · High EPSS 0.19% · P8

Possible ATT&CK Techniques 1 AI

T1055 · Process Injection

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux 0cfc85b8f5cf3b77463d61542191c75ba0cc3a5f< 6561597dba97e3e8479a9919bda172cf43eb902c affected
0cfc85b8f5cf3b77463d61542191c75ba0cc3a5f< 5000bcae71c869cba6674c326fec2d8ad659ae3a affected
0cfc85b8f5cf3b77463d61542191c75ba0cc3a5f< 7deadbc5dab5b8e2316364603bc6281129c8461c affected
0cfc85b8f5cf3b77463d61542191c75ba0cc3a5f< 9f1667098c6ae7ec81a9a56859cfdacb822aa0d0 affected
6.11 affected
< 6.11 unaffected
6.12.97≤ 6.12.* unaffected
6.18.40≤ 6.18.* unaffected
… +2 more rows
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I. Basic Information for CVE-2026-72280

Vulnerability Information
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Vulnerability Title
KVM: arm64: nv: Drop bogus WARN for write to ZCR_EL2
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Drop bogus WARN for write to ZCR_EL2 It is entirely possible for a guest to write to the ZCR_EL2 sysreg alias while in a nested context, as it is expected if FEAT_NV2 is advertised to the L1 hypervisor. Get rid of the bogus WARN which, since the hyp vectors were installed at this point, has the effect of a hyp_panic...
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel 6.11版本存在安全漏洞，该漏洞源于对ZCR_EL2系统寄存器写入时触发虚假警告，可能导致hyp_panic。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 0cfc85b8f5cf3b77463d61542191c75ba0cc3a5f ~ 6561597dba97e3e8479a9919bda172cf43eb902c -
Linux Linux 6.11 -

II. Public POCs for CVE-2026-72280

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III. Intelligence Information for CVE-2026-72280

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Patches & Fixes for CVE-2026-72280 (2)

Same Patch Batch · Linux · 2026-08-15 · 844 CVEs total

CVE-2026-72407 10.0 CRITICAL geneve: validate inner network offset in geneve_gro_complete()
CVE-2026-72408 10.0 CRITICAL geneve: gate GRO hint in geneve_gro_complete() on gs->gro_hint
CVE-2026-74279 10.0 CRITICAL crypto: cavium/cpt - fix DMA cleanup using wrong loop index
CVE-2026-72421 10.0 CRITICAL ipv4: fib: Don't ignore error route in local/main tables.
CVE-2026-74280 10.0 CRITICAL crypto: marvell/octeontx - fix DMA cleanup using wrong loop index
CVE-2026-74475 10.0 CRITICAL vxlan: use neigh_ha_snapshot() in route_shortcircuit()
CVE-2026-74309 10.0 CRITICAL vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler
CVE-2026-72493 9.9 CRITICAL net: serialize netif_running() check in enqueue_to_backlog()
CVE-2026-74495 9.8 CRITICAL igbvf: Fix leak in TX DMA error cleanup
CVE-2026-74394 9.8 CRITICAL RDMA/srpt: fix integer overflow in immediate data length check
CVE-2026-72417 9.8 CRITICAL netfilter: flowtable: Validate iph->ihl in nf_flow_ip4_tunnel_proto()
CVE-2026-72069 9.8 CRITICAL locking/rt: Fix the incorrect RCU protection in rt_spin_unlock()
CVE-2026-72422 9.8 CRITICAL ksmbd: fix use-after-free of conn->preauth_info in concurrent SMB2 NEGOTIATE
CVE-2026-72065 9.8 CRITICAL net: mana: Validate the packet length reported by the NIC
CVE-2026-72064 9.8 CRITICAL net: mana: Sync page pool RX frags for CPU
CVE-2026-72251 9.8 CRITICAL netfilter: nf_nat_sip: reload possible stale data pointer
CVE-2026-72249 9.8 CRITICAL netfilter: flowtable: use dst in this direction when pushing IPIP header
CVE-2026-72046 9.8 CRITICAL gve: fix header buffer corruption with header-split and HW-GRO
CVE-2026-72226 9.8 CRITICAL batman-adv: tt: prevent TVLV OOB check overflow
CVE-2026-72041 9.8 CRITICAL espintcp: use sk_msg_free_partial to fix partial send

Showing top 20 of 844 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-72280

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