CVE-2026-72289

Host crash via VGIC interrupt double deletion

Published Aug 15, 2026 · Updated Aug 15, 2026

Race condition in the Linux kernel KVM arm64 VGIC allows guest OS users to crash or corrupt the host kernel during interrupt migration. While vgic_prune_ap_list() drops ap_list_lock and irq_lock, vgic_flush_pending_lpis() can remove the interrupt without clearing its enabled, pending, or target fields, so the affinity check passes and list_del() deletes the entry twice. Exploitation requires control of an arm64 KVM guest or local KVM context and can corrupt the host kernel list or crash the host.

CVSS severity9.3
Critical
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in the Linux kernel KVM arm64 VGIC allows guest OS users to crash or corrupt the host kernel during interrupt migration. While vgic_prune_ap_list() drops ap_list_lock and irq_lock, vgic_flush_pending_lpis() can remove the interrupt without clearing its enabled, pending, or target fields, so the affinity check passes and list_del() deletes the entry twice. Exploitation requires control of an arm64 KVM guest or local KVM context and can corrupt the host kernel list or crash the host.

The record

CVE
CVE-2026-72289
Published
Aug 15, 2026
Updated
Aug 15, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-1341, T1499.004
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0919e84c0fc1fc73525fdcedefab89ea8460f697 <0074b82cdfcb5fd13710a0ac308ade68ac6f6fbe
  2. Affected versionversion=0919e84c0fc1fc73525fdcedefab89ea8460f697 <0658b09cba7fe866c6cd70cd2dcdfdcabe80328f
  3. Affected versionversion=0919e84c0fc1fc73525fdcedefab89ea8460f697 <3893e1fcf6f306b327a8358dcd1cbd077989a240
  4. Affected versionversion=0919e84c0fc1fc73525fdcedefab89ea8460f697 <654be81c4c637af12709d47c7efc3302cd336513
  5. Affected versionversion=0919e84c0fc1fc73525fdcedefab89ea8460f697 <79fdd2aa774e44847cd9bb7edc811e73e3dc7bfe
  6. Affected versionversion=0919e84c0fc1fc73525fdcedefab89ea8460f697 <cb3efe1a354f1638726725c3ecee1ce8d1a7e2dc
  7. Affected versionversion=0919e84c0fc1fc73525fdcedefab89ea8460f697 <da2d249a39a1881681c303ceea33f38ba1c5bbeb
  8. Affected versionversion=0919e84c0fc1fc73525fdcedefab89ea8460f697 <e363c0bc0226dc5ea5046a88e9a6864b82c45399
  9. Affected versionversion=4.7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=0919e84c0fc1fc73525fdcedefab89ea8460f697 <0074b82cdfcb5fd13710a0ac308ade68ac6f6fbe; version=0919e84c0fc1fc73525fdcedefab89ea8460f697 <0658b09cba7fe866c6cd70cd2dcdfdcabe80328f; version=0919e84c0fc1fc73525fdcedefab89ea8460f697 <3893e1fcf6f306b327a8358dcd1cbd077989a240; version=0919e84c0fc1fc73525fdcedefab89ea8460f697 <654be81c4c637af12709d47c7efc3302cd336513; version=0919e84c0fc1fc73525fdcedefab89ea8460f697 <79fdd2aa774e44847cd9bb7edc811e73e3dc7bfe; version=0919e84c0fc1fc73525fdcedefab89ea8460f697 <cb3efe1a354f1638726725c3ecee1ce8d1a7e2dc; version=0919e84c0fc1fc73525fdcedefab89ea8460f697 <da2d249a39a1881681c303ceea33f38ba1c5bbeb; version=0919e84c0fc1fc73525fdcedefab89ea8460f697 <e363c0bc0226dc5ea5046a88e9a6864b82c45399; version=4.7

Published CVSS scores

9.3CVE ProgramCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
9.3CanonicalCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
7.0Oracle LinuxCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
6.4Amazon LinuxCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:H
7.0Red HatCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1341Multiple Releases of Same Resource or Handle
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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