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CVE-2026-45847— net: remove WARN_ON_ONCE when accessing forward path array

AI Predicted 7.8 Difficulty: Moderate EPSS 0.03% · P10

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 16

VendorProductVersion RangeStatus
LinuxLinuxddb94eafab8b597b05904c8277194ea2d6357fa9< 548244c2f542aa0ad49453e9306e715a3877bc44affected
ddb94eafab8b597b05904c8277194ea2d6357fa9< dcf9b3c90e5560339649d088836529883fb509f3affected
ddb94eafab8b597b05904c8277194ea2d6357fa9< 9464ca7a6e56ad1ebf48b2ad5c16871edfad10c6affected
ddb94eafab8b597b05904c8277194ea2d6357fa9< 959ea349c7e2d4edf07b6838ca7e59345fe61a08affected
ddb94eafab8b597b05904c8277194ea2d6357fa9< 50422613185d505201167e8bdd2f2700790d5db6affected
ddb94eafab8b597b05904c8277194ea2d6357fa9< a78d055ba7c31103ad02f8eceb0c452e154d2660affected
ddb94eafab8b597b05904c8277194ea2d6357fa9< 008e7a7c293b30bc43e4368dac6ea3808b75a572affected
5.13affected
… +8 more rows
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I. Basic Information for CVE-2026-45847

Vulnerability Information
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Vulnerability Title
net: remove WARN_ON_ONCE when accessing forward path array
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: remove WARN_ON_ONCE when accessing forward path array Although unlikely, recent support for IPIP tunnels increases chances of reaching this WARN_ON_ONCE if userspace manages to build a sufficiently long forward path. Remove it.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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net模块在访问转发路径数组时使用了不必要的WARN_ON_ONCE宏。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux ddb94eafab8b597b05904c8277194ea2d6357fa9 ~ 548244c2f542aa0ad49453e9306e715a3877bc44 -
LinuxLinux 5.13 -

II. Public POCs for CVE-2026-45847

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III. Intelligence Information for CVE-2026-45847

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Patches & Fixes for CVE-2026-45847 (7)

Same Patch Batch · Linux · 2026-05-27 · 276 CVEs total

CVE-2026-460399.8 CRITICALrxgk: Fix potential integer overflow in length check
CVE-2026-458989.8 CRITICALRDMA/iwcm: Fix workqueue list corruption by removing work_list
CVE-2026-459889.8 CRITICALrxrpc: Fix re-decryption of RESPONSE packets
CVE-2026-459729.8 CRITICALsmb: client: fix potential UAF and double free in smb2_open_file()
CVE-2026-460439.1 CRITICALRDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv
CVE-2026-460568.8 HIGHBluetooth: hci_event: fix potential UAF in SSP passkey handlers
CVE-2026-459458.8 HIGHiommu/vt-d: Fix race condition during PASID entry replacement
CVE-2026-460378.2 HIGHipv4: icmp: validate reply type before using icmp_pointers
CVE-2026-458438.2 HIGHslip: bound decode() reads against the compressed packet length
CVE-2026-460108.1 HIGHrxrpc: Fix error handling in rxgk_extract_token()
CVE-2026-460998.1 HIGHnet: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels
CVE-2026-460767.9 HIGHKVM: nSVM: Raise #UD if unhandled VMMCALL isn't intercepted by L1
CVE-2026-458787.8 HIGHdrm/amdkfd: Fix watch_id bounds checking in debug address watch v2
CVE-2026-459597.8 HIGHcrypto: ccp - Fix a crash due to incorrect cleanup usage of kfree
CVE-2026-460117.8 HIGHmedia: mtk-jpeg: fix use-after-free in release path due to uncancelled work
CVE-2026-458947.8 HIGHiommu/vt-d: Clear Present bit before tearing down PASID entry
CVE-2026-460157.8 HIGHtcp: call sk_data_ready() after listener migration
CVE-2026-458527.8 HIGHRDMA/rxe: Fix double free in rxe_srq_from_init
CVE-2026-460537.8 HIGHnet: rds: fix MR cleanup on copy error
CVE-2026-458627.8 HIGHiommu/vt-d: Flush cache for PASID table before using it

Showing top 20 of 276 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-45847

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