{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-52988","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-06-09T07:44:35.376Z","datePublished":"2026-06-24T16:29:02.580Z","dateUpdated":"2026-10-16T15:31:26.951Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-10-03T10:55:33.999Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: join hook list via splice_list_rcu() in commit phase\n\nPublish new hooks in the list into the basechain/flowtable using\nsplice_list_rcu() to ensure netlink dump list traversal via rcu is safe\nwhile concurrent ruleset update is going on."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","baseScore":7.1,"baseSeverity":"HIGH"},"scenarios":[{"lang":"en","value":"AV:L - Reachability is through nfnetlink/nftables netlink operations (`NFT_MSG_NEWCHAIN`/`NEWFLOWTABLE` and concurrent `GETCHAIN`/`GETFLOWTABLE` dumps), which require local ability to send netlink messages.\nAC:L - The bug is a race between an attacker-controlled ruleset update and an attacker-controlled concurrent RCU dump; both sides can be generated repeatedly from local processes.\nPR:L - nfnetlink checks `CAP_NET_ADMIN` in the target network namespace, and nftables/netfilter administration is reachable from unprivileged users via user+network namespaces on affected configurations.\nUI:N - No victim interaction is required; the attacker triggers both the update and dump operations directly.\nS:U - The impact remains within the kernel/local host security authority and does not cross a VM, IOMMU, or separate security-scope boundary.\nC:H - Unsafe non-RCU list publication can make an RCU netlink dump interpret a transaction list head or freed transaction memory as `struct nft_hook`, leading to out-of-bounds/use-after-free reads returned through netlink hook device-name serialization.\nI:N - The reachable affected dump path reads hook-list entries and serializes names; I did not find a defensible attacker-controlled write or control-flow primitive from this bug.\nA:H - The malformed RCU traversal can dereference invalid/freed memory or loop over an inconsistent list, making kernel oops, panic, or soft lockup a plausible outcome."}]}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/netfilter/nf_tables_api.c"],"versions":[{"version":"78d9f48f7f44431a25da2b46b3a8812f6ff2b981","lessThan":"ed8d3bd8272e49ea987100de2abfb13710329a9b","status":"affected","versionType":"git"},{"version":"78d9f48f7f44431a25da2b46b3a8812f6ff2b981","lessThan":"8fdd2204503ab1ce07dc000c277e2c3edf96a67b","status":"affected","versionType":"git"},{"version":"78d9f48f7f44431a25da2b46b3a8812f6ff2b981","lessThan":"5593c640f9daedec8de61555c41e1019fa675aa6","status":"affected","versionType":"git"},{"version":"78d9f48f7f44431a25da2b46b3a8812f6ff2b981","lessThan":"00e370627f2e1fb3585f9d26348b1abddc75442b","status":"affected","versionType":"git"},{"version":"78d9f48f7f44431a25da2b46b3a8812f6ff2b981","lessThan":"28ecfb3d1fe8dea70319de7051cb6718c25b5b52","status":"affected","versionType":"git"},{"version":"78d9f48f7f44431a25da2b46b3a8812f6ff2b981","lessThan":"a557816c6e38e9473d99aa9ea8c662f55fc85847","status":"affected","versionType":"git"},{"version":"78d9f48f7f44431a25da2b46b3a8812f6ff2b981","lessThan":"1346be9379639c30877083b12747d4eacb83c24f","status":"affected","versionType":"git"},{"version":"78d9f48f7f44431a25da2b46b3a8812f6ff2b981","lessThan":"a6134e62dba2ea4f760b29d5226907f447c92400","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/netfilter/nf_tables_api.c"],"versions":[{"version":"5.8","status":"affected"},{"version":"0","lessThan":"5.8","status":"unaffected","versionType":"semver"},{"version":"5.10.271","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.222","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.189","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.158","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.112","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.55","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.0.10","lessThanOrEqual":"7.0.*","status":"unaffected","versionType":"semver"},{"version":"7.1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"5.10.271"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"5.15.222"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"6.1.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"6.6.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"6.12.112"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"6.18.55"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"7.0.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.8","versionEndExcluding":"7.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/ed8d3bd8272e49ea987100de2abfb13710329a9b"},{"url":"https://git.kernel.org/stable/c/8fdd2204503ab1ce07dc000c277e2c3edf96a67b"},{"url":"https://git.kernel.org/stable/c/5593c640f9daedec8de61555c41e1019fa675aa6"},{"url":"https://git.kernel.org/stable/c/00e370627f2e1fb3585f9d26348b1abddc75442b"},{"url":"https://git.kernel.org/stable/c/28ecfb3d1fe8dea70319de7051cb6718c25b5b52"},{"url":"https://git.kernel.org/stable/c/a557816c6e38e9473d99aa9ea8c662f55fc85847"},{"url":"https://git.kernel.org/stable/c/1346be9379639c30877083b12747d4eacb83c24f"},{"url":"https://git.kernel.org/stable/c/a6134e62dba2ea4f760b29d5226907f447c92400"}],"title":"netfilter: nf_tables: join hook list via splice_list_rcu() in commit phase","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-52988","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-10-16T15:24:11.399025Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-16T15:31:26.951Z"}}]}}