{"schema":"threatline.record/2","record":{"id":"CVE-2026-100071","aliases":[],"summary":"net: hsr: free learned nodes on device setup failure","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: hsr: free learned nodes on device setup failure\n\nhsr_dev_finalize() can fail after a lower-device RX handler has\nalready been registered (slave A is added before the failable slave B\nand interlink adds). RX handlers run in softirq regardless of the\nmaster's state, so frames received in that window can learn dynamic\nnodes into node_db, and the error unwind never releases them.\n\nFree both owned dynamic databases in the unwind, mirroring\nhsr_dellink(). proxy_node_db is provably empty on every current error\nexit (only interlink RX feeds it, and the interlink add is the last\nfailable step) and is freed for symmetry. The order is safe:\nhsr_del_port() unregisters each RX handler with synchronize_net()\nbefore hsr_del_nodes() runs, which removes remaining entries with\nlist_del_rcu() and defers their release with call_rcu() for readers\nalready under RCU.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-100071","source_modified_at":"2026-10-19T08:43:03.400Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"81ba6afd6e6443d2bf4bf40f16df1f1f91c603f8","lessThan":"e691eee886871b933d772ffc76d66c80b4c0a25e","status":"affected","versionType":"git"},{"version":"81ba6afd6e6443d2bf4bf40f16df1f1f91c603f8","lessThan":"0a340ffd96943a49a78e367efac9517ca767d99b","status":"affected","versionType":"git"},{"version":"81ba6afd6e6443d2bf4bf40f16df1f1f91c603f8","lessThan":"f7289e3492f2694dccd3d79287e0e31879b58650","status":"affected","versionType":"git"},{"version":"81ba6afd6e6443d2bf4bf40f16df1f1f91c603f8","lessThan":"65702339b3e9fd792f65d4b740928798194d86ce","status":"affected","versionType":"git"},{"version":"81ba6afd6e6443d2bf4bf40f16df1f1f91c603f8","lessThan":"49b01f2939abc676a6f9a118f07a10110ee5f683","status":"affected","versionType":"git"},{"version":"81ba6afd6e6443d2bf4bf40f16df1f1f91c603f8","lessThan":"7f16289b91eb316f170a6bd22d32e6c632f6a5b6","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-100071","source_modified_at":"2026-10-19T08:43:03.400Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"3.17","status":"affected"},{"version":"0","lessThan":"3.17","status":"unaffected","versionType":"semver"},{"version":"6.1.188","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.157","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.110","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.52","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.6","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-100071","source_modified_at":"2026-10-19T08:43:03.400Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"0a340ffd96943a49a78e367efac9517ca767d99b","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-100071","source_modified_at":"2026-10-19T08:43:03.400Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"65702339b3e9fd792f65d4b740928798194d86ce","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-100071","source_modified_at":"2026-10-19T08:43:03.400Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"49b01f2939abc676a6f9a118f07a10110ee5f683","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-100071","source_modified_at":"2026-10-19T08:43:03.400Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"7f16289b91eb316f170a6bd22d32e6c632f6a5b6","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00114,"percentile":0.01417,"score_date":"2026-10-23"},"published_at":"2026-09-25T13:06:44.956Z","modified_at":"2026-10-19T08:43:03.400Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-100071","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T08:43:03.400Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-100071","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/e691eee886871b933d772ffc76d66c80b4c0a25e"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/0a340ffd96943a49a78e367efac9517ca767d99b"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/f7289e3492f2694dccd3d79287e0e31879b58650"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/65702339b3e9fd792f65d4b740928798194d86ce"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/49b01f2939abc676a6f9a118f07a10110ee5f683"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/7f16289b91eb316f170a6bd22d32e6c632f6a5b6"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-19T08:43:03.400Z","content_hash":"e6a3e4a548ce2a808ef3d0f3806ae237f6b596387ee534be4ef980b81590e797"}}