{"schema":"threatline.record/2","record":{"id":"CVE-2026-99116","aliases":[],"summary":"net: psp: do not inherit the Rx association on clone","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: psp: do not inherit the Rx association on clone\n\nsk->psp_assoc sits past sk_dontcopy_end, so sock_copy() copies it into\nevery socket accepted from a listener without taking a reference, while\ninet_sock_destruct() puts for every inet socket. psp_twsk_init() does\nrefcount_inc() for the timewait socket, so a child closing through\nTIME_WAIT cancels its own put and leaves the association with one\nreference and N timewait sockets holding the same pointer. Closing the\nlistener frees it, and the timewait timers then put freed memory.\n\nRejecting the association on a listening socket is not sufficient: a socket\ncan acquire one while established and then be turned back into a listener,\nbecause tcp_disconnect() leaves sk->psp_assoc in place.\n\n  BUG: KASAN: slab-use-after-free in psp_twsk_assoc_free+0x6f/0xf0\n  Write of size 4 at addr ffff888110f9255c by task swapper/7/0\n   psp_twsk_assoc_free+0x6f/0xf0\n   inet_twsk_put+0xda/0x1b0\n   call_timer_fn+0x53/0x2e0\n   __run_timers+0x764/0xa80\n  Freed by task 99:\n   kfree+0x1a7/0x500\n   process_one_work+0x7ec/0x1100\n\nAn association carries a per-connection SPI and key, so a child must not\ninherit the parent's. Clear it on clone.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-99116","source_modified_at":"2026-10-28T10:34:33.109Z","fetched_at":"2026-10-28T15:55:58.673066Z","product":"Linux","vendor":"Linux","versions":[{"version":"6b46ca260e2290e3453d1355ab5b6d283d73d780","lessThan":"a9f14ea73e82db743f0acf4219f499d594589288","status":"affected","versionType":"git"},{"version":"6b46ca260e2290e3453d1355ab5b6d283d73d780","lessThan":"c962695467d3ab9738a6508279827ec33a7d2bdf","status":"affected","versionType":"git"},{"version":"6b46ca260e2290e3453d1355ab5b6d283d73d780","lessThan":"1d2929d0850fff683b8aff051275945e65f082c8","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-99116","source_modified_at":"2026-10-28T10:34:33.109Z","fetched_at":"2026-10-28T15:55:58.673066Z","product":"Linux","vendor":"Linux","versions":[{"version":"6.18","status":"affected"},{"version":"0","lessThan":"6.18","status":"unaffected","versionType":"semver"},{"version":"6.18.59","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.13","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-2026-99116","source_modified_at":"2026-10-28T10:34:33.109Z","fetched_at":"2026-10-28T15:55:58.673066Z","package":{"name":"Linux","ecosystem":null},"version":"1d2929d0850fff683b8aff051275945e65f082c8","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-28T10:34:33.109Z","modified_at":"2026-10-28T10:34:33.109Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-99116","fetched_at":"2026-10-28T15:55:58.673066Z","source_modified_at":"2026-10-28T10:34:33.109Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/a9f14ea73e82db743f0acf4219f499d594589288"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/c962695467d3ab9738a6508279827ec33a7d2bdf"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/1d2929d0850fff683b8aff051275945e65f082c8"}],"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":"2026-10-28T10:34:33.109Z","content_hash":"bbab84f7540d4e856f94a73dcbc730a702894e566ce9227b4ec3f0033904c688"}}