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CVE-2026-52988— netfilter: nf_tables: join hook list via splice_list_rcu() in commit phase

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基金会开源的操作系统Linux所使用的内核。 Linux kernel 5.8版本存在安全漏洞，该漏洞源于在commit阶段未使用splice_list_rcu()发布挂钩列表，可能导致并发规则集更新时RCU遍历不安全。

CVSS 7.1 · High EPSS 0.13% · P2

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 78d9f48f7f44431a25da2b46b3a8812f6ff2b981< ed8d3bd8272e49ea987100de2abfb13710329a9b affected
78d9f48f7f44431a25da2b46b3a8812f6ff2b981< 8fdd2204503ab1ce07dc000c277e2c3edf96a67b affected
78d9f48f7f44431a25da2b46b3a8812f6ff2b981< 5593c640f9daedec8de61555c41e1019fa675aa6 affected
78d9f48f7f44431a25da2b46b3a8812f6ff2b981< 00e370627f2e1fb3585f9d26348b1abddc75442b affected
78d9f48f7f44431a25da2b46b3a8812f6ff2b981< 28ecfb3d1fe8dea70319de7051cb6718c25b5b52 affected
78d9f48f7f44431a25da2b46b3a8812f6ff2b981< a557816c6e38e9473d99aa9ea8c662f55fc85847 affected
78d9f48f7f44431a25da2b46b3a8812f6ff2b981< 1346be9379639c30877083b12747d4eacb83c24f affected
78d9f48f7f44431a25da2b46b3a8812f6ff2b981< a6134e62dba2ea4f760b29d5226907f447c92400 affected
… +10 more rows
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I. Basic Information for CVE-2026-52988

Vulnerability Information
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Vulnerability Title
netfilter: nf_tables: join hook list via splice_list_rcu() in commit phase
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: join hook list via splice_list_rcu() in commit phase Publish new hooks in the list into the basechain/flowtable using splice_list_rcu() to ensure netlink dump list traversal via rcu is safe while concurrent ruleset update is going on.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
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基金会开源的操作系统Linux所使用的内核。 Linux kernel 5.8版本存在安全漏洞，该漏洞源于在commit阶段未使用splice_list_rcu()发布挂钩列表，可能导致并发规则集更新时RCU遍历不安全。
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 78d9f48f7f44431a25da2b46b3a8812f6ff2b981 ~ ed8d3bd8272e49ea987100de2abfb13710329a9b -
Linux Linux 5.8 -

II. Public POCs for CVE-2026-52988

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III. Intelligence Information for CVE-2026-52988

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Patches & Fixes for CVE-2026-52988 (7)

Same Patch Batch · Linux · 2026-06-24 · 219 CVEs total

CVE-2026-53049 9.8 CRITICAL gfs2: add some missing log locking
CVE-2026-52993 9.8 CRITICAL tipc: fix double-free in tipc_buf_append()
CVE-2026-52989 9.8 CRITICAL nvmet-tcp: propagate nvmet_tcp_build_pdu_iovec() errors to its callers
CVE-2026-52986 9.8 CRITICAL netfilter: nf_conntrack_sip: don't use simple_strtoul
CVE-2026-52982 9.8 CRITICAL net: usb: rtl8150: fix use-after-free in rtl8150_start_xmit()
CVE-2026-53002 9.8 CRITICAL netfilter: conntrack: remove sprintf usage
CVE-2026-53006 9.8 CRITICAL ipv6: fix possible UAF in icmpv6_rcv()
CVE-2026-53045 9.8 CRITICAL memory: tegra124-emc: Fix dll_change check
CVE-2026-53086 9.8 CRITICAL net: bcmgenet: fix racing timeout handler
CVE-2026-53046 9.8 CRITICAL ksmbd: fix use-after-free from async crypto on Qualcomm crypto engine
CVE-2026-52955 9.8 CRITICAL libceph: Fix potential out-of-bounds access in crush_decode()
CVE-2026-53010 9.8 CRITICAL ksmbd: fix use-after-free in smb2_open during durable reconnect
CVE-2026-53088 9.8 CRITICAL net: bcmgenet: fix off-by-one in bcmgenet_put_txcb
CVE-2026-52914 9.8 CRITICAL batman-adv: fix fragment reassembly length accounting
CVE-2026-53055 9.8 CRITICAL crypto: hisilicon/sec2 - prevent req used-after-free for sec
CVE-2026-52924 9.8 CRITICAL sctp: purge outqueue on stale COOKIE-ECHO handling
CVE-2026-52931 9.8 CRITICAL batman-adv: tp_meter: avoid use of uninit sender vars
CVE-2026-52999 9.1 CRITICAL netfilter: nfnetlink_osf: fix out-of-bounds read on option matching
CVE-2026-53043 9.1 CRITICAL ocfs2/dlm: validate qr_numregions in dlm_match_regions()
CVE-2026-52958 9.1 CRITICAL libceph: Fix potential out-of-bounds access in osdmap_decode()

Showing top 20 of 219 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-52988

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