What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-24 · updated 2026-10-19
• Weakness: CWE-362

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.

Affected products

• Linux kernel: from 5.8 before 7.0.10; 7.1-rc1 — fixed in 7.0.10

How to fix

Upgrade to a fixed version: Linux kernel 7.0.10. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/00e370627f2e1fb3585f9d26348b1abddc75442b
• https://git.kernel.org/stable/c/1346be9379639c30877083b12747d4eacb83c24f
• https://git.kernel.org/stable/c/28ecfb3d1fe8dea70319de7051cb6718c25b5b52
• https://git.kernel.org/stable/c/5593c640f9daedec8de61555c41e1019fa675aa6
• https://git.kernel.org/stable/c/8fdd2204503ab1ce07dc000c277e2c3edf96a67b
• https://git.kernel.org/stable/c/a557816c6e38e9473d99aa9ea8c662f55fc85847
• https://git.kernel.org/stable/c/a6134e62dba2ea4f760b29d5226907f447c92400
• https://git.kernel.org/stable/c/ed8d3bd8272e49ea987100de2abfb13710329a9b

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