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CVE-2026-46082— KVM: SVM: Inject #UD for INVLPGA if EFER.SVME=0

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基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于KVM SVM模块未在EFER.SVME=0时正确注入#UD异常，可能导致INVLPGA指令处理异常。

AI Predicted 3.7 Difficulty: Moderate EPSS 0.12% · P2

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux ff092385e8285c03d8b148f42f46f98c5f4becd5< ebb63390142c6458fc37758e0892759989cc159f affected
ff092385e8285c03d8b148f42f46f98c5f4becd5< 491139c17f8ad5773303068411f6ac5eed438b51 affected
ff092385e8285c03d8b148f42f46f98c5f4becd5< 3ac9d4241d205f5d0df06358349ca718ebb0fa12 affected
ff092385e8285c03d8b148f42f46f98c5f4becd5< 643125b66ffc1147c66616b749475ba9efb15971 affected
ff092385e8285c03d8b148f42f46f98c5f4becd5< c15392ed9e49c1a16b4d3a3ccf1b3bf2318a6c28 affected
ff092385e8285c03d8b148f42f46f98c5f4becd5< ee24928ecd85db4b68ed111e91fef36af0ca37b0 affected
ff092385e8285c03d8b148f42f46f98c5f4becd5< d99df02ff427f461102230f9c5b90a6c64ee8e23 affected
2.6.32 affected
… +8 more rows
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I. Basic Information for CVE-2026-46082

Vulnerability Information
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Vulnerability Title
KVM: SVM: Inject #UD for INVLPGA if EFER.SVME=0
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Inject #UD for INVLPGA if EFER.SVME=0 INVLPGA should cause a #UD when EFER.SVME is not set. Add a check to properly inject #UD when EFER.SVME=0. [sean: tag for stable@]
Source: CVE Program / CVE List V5
CVSS Information
N/A
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基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于KVM SVM模块未在EFER.SVME=0时正确注入#UD异常，可能导致INVLPGA指令处理异常。
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 ff092385e8285c03d8b148f42f46f98c5f4becd5 ~ ebb63390142c6458fc37758e0892759989cc159f -
Linux Linux 2.6.32 -

II. Public POCs for CVE-2026-46082

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III. Intelligence Information for CVE-2026-46082

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Patches & Fixes for CVE-2026-46082 (7)

Same Patch Batch · Linux · 2026-05-27 · 275 CVEs total

CVE-2026-45988 9.8 CRITICAL rxrpc: Fix re-decryption of RESPONSE packets
CVE-2026-45898 9.8 CRITICAL RDMA/iwcm: Fix workqueue list corruption by removing work_list
CVE-2026-46039 9.8 CRITICAL rxgk: Fix potential integer overflow in length check
CVE-2026-45972 9.8 CRITICAL smb: client: fix potential UAF and double free in smb2_open_file()
CVE-2026-46043 9.1 CRITICAL RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv
CVE-2026-46056 8.8 HIGH Bluetooth: hci_event: fix potential UAF in SSP passkey handlers
CVE-2026-45945 8.8 HIGH iommu/vt-d: Fix race condition during PASID entry replacement
CVE-2026-45843 8.2 HIGH slip: bound decode() reads against the compressed packet length
CVE-2026-46037 8.2 HIGH ipv4: icmp: validate reply type before using icmp_pointers
CVE-2025-71311 8.2 HIGH fs/ntfs3: Initialize new folios before use
CVE-2026-46010 8.1 HIGH rxrpc: Fix error handling in rxgk_extract_token()
CVE-2026-46099 8.1 HIGH net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels
CVE-2026-46076 7.9 HIGH KVM: nSVM: Raise #UD if unhandled VMMCALL isn't intercepted by L1
CVE-2026-45931 7.8 HIGH accel/amdxdna: Hold mm structure across iommu_sva_unbind_device()
CVE-2026-45935 7.8 HIGH fs/ntfs3: Fix slab-out-of-bounds read in DeleteIndexEntryRoot
CVE-2026-45909 7.8 HIGH clk: mediatek: Drop __initconst from gates
CVE-2026-46065 7.8 HIGH fbdev: defio: Disconnect deferred I/O from the lifetime of struct fb_info
CVE-2026-46058 7.8 HIGH media: amphion: Fix race between m2m job_abort and device_run
CVE-2026-46015 7.8 HIGH tcp: call sk_data_ready() after listener migration
CVE-2026-45959 7.8 HIGH crypto: ccp - Fix a crash due to incorrect cleanup usage of kfree

Showing top 20 of 275 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-46082

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