CVE-2025-21763— neighbour: use RCU protection in __neigh_notify()
Possible ATT&CK Techniques 1AI
T1068 · Exploitation for Privilege EscalationAffected Version Matrix 18
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 426b5303eb435d98b9bee37a807be386bc2b3320< e1aed6be381bcd7f46d4ca9d7ef0f5f3d6a1be32 | affected |
426b5303eb435d98b9bee37a807be386bc2b3320< 8666e9aab801328c1408a19fbf4070609dc0695a | affected | ||
426b5303eb435d98b9bee37a807be386bc2b3320< 40d8f2f2a373b6c294ffac394d2bb814b572ead1 | affected | ||
426b5303eb435d98b9bee37a807be386bc2b3320< 784eb2376270e086f7db136d154b8404edacf97b | affected | ||
426b5303eb435d98b9bee37a807be386bc2b3320< 1cbb2aa90cd3fba15ad7efb5cdda28f3d1082379 | affected | ||
426b5303eb435d98b9bee37a807be386bc2b3320< cdd5c2a12ddad8a77ce1838ff9f29aa587de82df | affected | ||
426b5303eb435d98b9bee37a807be386bc2b3320< 559307d25235e24b5424778c7332451b6c741159 | affected | ||
426b5303eb435d98b9bee37a807be386bc2b3320< becbd5850c03ed33b232083dd66c6e38c0c0e569 | affected | ||
| … +10 more rows | |||
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I. Basic Information for CVE-2025-21763
Vulnerability Information
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Vulnerability Title
neighbour: use RCU protection in __neigh_notify()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: neighbour: use RCU protection in __neigh_notify() __neigh_notify() can be called without RTNL or RCU protection. Use RCU protection to avoid potential UAF.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 资源管理错误漏洞
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__neigh_notify函数未使用RCU保护，可能导致释放后重用。
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
II. Public POCs for CVE-2025-21763
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
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Patches & Fixes for CVE-2025-21763 (5)
Other References for CVE-2025-21763 (3)
Same Patch Batch · Linux · 2025-02-27 · 177 CVEs total
| CVE-2025-21805 | 9.8 CRITICAL | RDMA/rtrs: Add missing deinit() call |
| CVE-2025-21707 | 9.8 CRITICAL | mptcp: consolidate suboption status |
| CVE-2025-21748 | 9.8 CRITICAL | ksmbd: fix integer overflows on 32 bit systems |
| CVE-2025-21796 | 9.8 CRITICAL | nfsd: clear acl_access/acl_default after releasing them |
| CVE-2024-58006 | 9.6 CRITICAL | PCI: dwc: ep: Prevent changing BAR size/flags in pci_epc_set_bar() |
| CVE-2024-57997 | 8.8 HIGH | wifi: wcn36xx: fix channel survey memory allocation size |
| CVE-2024-57995 | 8.8 HIGH | wifi: ath12k: fix read pointer after free in ath12k_mac_assign_vif_to_vdev() |
| CVE-2024-57999 | 8.8 HIGH | powerpc/pseries/iommu: IOMMU incorrectly marks MMIO range in DDW |
| CVE-2025-21735 | 8.8 HIGH | NFC: nci: Add bounds checking in nci_hci_create_pipe() |
| CVE-2025-21710 | 8.2 HIGH | tcp: correct handling of extreme memory squeeze |
| CVE-2025-21766 | 8.1 HIGH | ipv4: use RCU protection in __ip_rt_update_pmtu() |
| CVE-2024-57973 | 8.1 HIGH | rdma/cxgb4: Prevent potential integer overflow on 32bit |
| CVE-2025-21762 | 8.1 HIGH | arp: use RCU protection in arp_xmit() |
| CVE-2025-21760 | 8.1 HIGH | ndisc: extend RCU protection in ndisc_send_skb() |
| CVE-2025-21765 | 8.1 HIGH | ipv6: use RCU protection in ip6_default_advmss() |
| CVE-2025-21738 | 7.8 HIGH | ata: libata-sff: Ensure that we cannot write outside the allocated buffer |
| CVE-2025-21729 | 7.8 HIGH | wifi: rtw89: fix race between cancel_hw_scan and hw_scan completion |
| CVE-2025-21730 | 7.8 HIGH | wifi: rtw89: avoid to init mgnt_entry list twice when WoWLAN failed |
| CVE-2025-21801 | 7.8 HIGH | net: ravb: Fix missing rtnl lock in suspend/resume path |
| CVE-2024-54458 | 7.8 HIGH | scsi: ufs: bsg: Set bsg_queue to NULL after removal |
Showing top 20 of 177 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev - CVE-2026-74575
thunderbolt: Prevent XDomain delayed work use-after-free on
Same vendor: Linux
- CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev - CVE-2026-74575
thunderbolt: Prevent XDomain delayed work use-after-free on
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