Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2025-21760— ndisc: extend RCU protection in ndisc_send_skb()

Quick assessment

Affected
Linux Linux
Exploitation
High exploitation probability; assess promptly
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ndisc_send_skb函数未使用RCU保护，可能导致释放后重用。

CVSS 8.1 · High EPSS 36.85% · P98

Possible ATT&CK Techniques 1 AI

T1200 · Hardware Additions

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 1762f7e88eb34f653b4a915be99a102e347dd45e< 10a1f3fece2f0d23a3a618b72b2b4e6f408ef7d1 affected
1762f7e88eb34f653b4a915be99a102e347dd45e< 4d576202b90b1b95a7c428a80b536f91b8201bcc affected
1762f7e88eb34f653b4a915be99a102e347dd45e< e24d225e4cb8cf108bde00b76594499b98f0a74d affected
1762f7e88eb34f653b4a915be99a102e347dd45e< a9319d800b5701e7f5e3fa71a5b7c4831fc20d6d affected
1762f7e88eb34f653b4a915be99a102e347dd45e< ae38982f521621c216fc2f5182cd091f4734641d affected
1762f7e88eb34f653b4a915be99a102e347dd45e< 789230e5a8c1097301afc802e242c79bc8835c67 affected
1762f7e88eb34f653b4a915be99a102e347dd45e< 04e05112f10354ffc3bb6cc796d553bab161594c affected
1762f7e88eb34f653b4a915be99a102e347dd45e< ed6ae1f325d3c43966ec1b62ac1459e2b8e45640 affected
… +10 more rows
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2025-21760

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
ndisc: extend RCU protection in ndisc_send_skb()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ndisc: extend RCU protection in ndisc_send_skb() ndisc_send_skb() can be called without RTNL or RCU held. Acquire rcu_read_lock() earlier, so that we can use dev_net_rcu() and avoid a potential UAF.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/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ndisc_send_skb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

Vendor Product Affected Versions CPE Subscribe
Linux Linux 1762f7e88eb34f653b4a915be99a102e347dd45e ~ 10a1f3fece2f0d23a3a618b72b2b4e6f408ef7d1 -
Linux Linux 2.6.26 -

II. Public POCs for CVE-2025-21760

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2025-21760

请登录查看更多情报信息。

Patches & Fixes for CVE-2025-21760 (5)

Other References for CVE-2025-21760 (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-2025-21762 8.1 HIGH arp: use RCU protection in arp_xmit()
CVE-2024-57973 8.1 HIGH rdma/cxgb4: Prevent potential integer overflow on 32bit
CVE-2025-21766 8.1 HIGH ipv4: use RCU protection in __ip_rt_update_pmtu()
CVE-2025-21765 8.1 HIGH ipv6: use RCU protection in ip6_default_advmss()
CVE-2025-21730 7.8 HIGH wifi: rtw89: avoid to init mgnt_entry list twice when WoWLAN failed
CVE-2024-52560 7.8 HIGH fs/ntfs3: Mark inode as bad as soon as error detected in mi_enum_attr()
CVE-2025-21729 7.8 HIGH wifi: rtw89: fix race between cancel_hw_scan and hw_scan completion
CVE-2025-21718 7.8 HIGH net: rose: fix timer races against user threads
CVE-2025-21738 7.8 HIGH ata: libata-sff: Ensure that we cannot write outside the allocated buffer
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 &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-21760

No comments yet

Leave a comment