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CVE-2026-45917— ipvs: do not keep dest_dst if dev is going down

AI Predicted 4.4 Difficulty: Moderate EPSS 0.17% · P6

Possible ATT&CK Techniques 1AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 10

VendorProductVersion RangeStatus
LinuxLinux7a4f0761fce32ff4918a7c23b08db564ad33092d< 64af43033503458c46023e56d6ae7bb0f824b55faffected
7a4f0761fce32ff4918a7c23b08db564ad33092d< bae53b3baf2ff2f45f9205c438818fc055601a54affected
7a4f0761fce32ff4918a7c23b08db564ad33092d< 024eb0bd19f507e6e7f0c7a7e5506d66b5dc1d3eaffected
7a4f0761fce32ff4918a7c23b08db564ad33092d< 8fde939b0206afc1d5846217a01a16b9bc8c7896affected
2.6.39affected
< 2.6.39unaffected
6.12.75≤ 6.12.*unaffected
6.18.14≤ 6.18.*unaffected
… +2 more rows
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I. Basic Information for CVE-2026-45917

Vulnerability Information
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Vulnerability Title
ipvs: do not keep dest_dst if dev is going down
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ipvs: do not keep dest_dst if dev is going down There is race between the netdev notifier ip_vs_dst_event() and the code that caches dst with dev that is going down. As the FIB can be notified for the closed device after our handler finishes, it is possible valid route to be returned and cached resuling in a leaked dev reference until the dest is not removed. To prevent new dest_dst to be attached to dest just after the handler dropped the old one, add a netif_running() check to make sure the notifier handler is not currently running for device that is closing.
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IPVS中网络设备关闭时与dst缓存之间的竞争条件，可能导致设备引用泄漏。
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 7a4f0761fce32ff4918a7c23b08db564ad33092d ~ 64af43033503458c46023e56d6ae7bb0f824b55f -
LinuxLinux 2.6.39 -

II. Public POCs for CVE-2026-45917

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III. Intelligence Information for CVE-2026-45917

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Patches & Fixes for CVE-2026-45917 (4)

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

CVE-2026-458989.8 CRITICALRDMA/iwcm: Fix workqueue list corruption by removing work_list
CVE-2026-460399.8 CRITICALrxgk: Fix potential integer overflow in length check
CVE-2026-459729.8 CRITICALsmb: client: fix potential UAF and double free in smb2_open_file()
CVE-2026-459889.8 CRITICALrxrpc: Fix re-decryption of RESPONSE packets
CVE-2026-460439.1 CRITICALRDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv
CVE-2026-459458.8 HIGHiommu/vt-d: Fix race condition during PASID entry replacement
CVE-2026-460568.8 HIGHBluetooth: hci_event: fix potential UAF in SSP passkey handlers
CVE-2026-458438.2 HIGHslip: bound decode() reads against the compressed packet length
CVE-2026-460378.2 HIGHipv4: icmp: validate reply type before using icmp_pointers
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-2026-459597.8 HIGHcrypto: ccp - Fix a crash due to incorrect cleanup usage of kfree
CVE-2026-459567.8 HIGHdrm/exynos: vidi: use priv->vidi_dev for ctx lookup in vidi_connection_ioctl()
CVE-2026-459097.8 HIGHclk: mediatek: Drop __initconst from gates
CVE-2026-460937.8 HIGHmm/vmalloc: take vmap_purge_lock in shrinker
CVE-2026-460537.8 HIGHnet: rds: fix MR cleanup on copy error
CVE-2026-459357.8 HIGHfs/ntfs3: Fix slab-out-of-bounds read in DeleteIndexEntryRoot
CVE-2026-458627.8 HIGHiommu/vt-d: Flush cache for PASID table before using it
CVE-2026-461007.8 HIGHfs: afs: revert mmap_prepare() change

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-2026-45917

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