{"schema":"threatline.record/2","record":{"id":"CVE-2026-98059","aliases":[],"summary":"bpf: Mark sched_process_wait argument as nullable","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Mark sched_process_wait argument as nullable\n\ndo_wait() passes wo->wo_pid to the sched_process_wait tracepoint.\nkernel_wait4() leaves wo_pid NULL for wait4(-1), and\nkernel_waitid_prepare() does likewise for waitid(P_ALL).\n\nbtf_ctx_access() currently types argument 0 as PTR_TO_BTF_ID |\nPTR_TRUSTED. Without PTR_MAYBE_NULL, the verifier accepts an unchecked\ndereference. Trusted pointer loads have no fault protection, so a wait for\nany child can then cause a NULL pointer dereference in JITed BPF code.\n\nAdd sched_process_wait to raw_tp_null_args[] with argument 0 marked\nnullable. The verifier rejects an unchecked dereference while preserving\naccess after the program checks the pointer for NULL.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98059","source_modified_at":"2026-10-19T09:13:06.971Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"b2fc4b17fc13810ef440fb323fad3981cd174985","lessThan":"bee862c79cb7e0e5c33b2df2e3a31d164705120d","status":"affected","versionType":"git"},{"version":"838a10bd2ebfe11a60dd67687533a7cfc220cc86","lessThan":"3c03a1b8ded858685a73c1ba4080adef99db4544","status":"affected","versionType":"git"},{"version":"838a10bd2ebfe11a60dd67687533a7cfc220cc86","lessThan":"b9205e936dde9a94e93376c8de6195b740bcd5d2","status":"affected","versionType":"git"},{"version":"838a10bd2ebfe11a60dd67687533a7cfc220cc86","lessThan":"a453d6e3b8e8e1a321c8744d6189d763af9287d0","status":"affected","versionType":"git"},{"version":"6.12.6","lessThan":"6.12.111","status":"affected","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98059","source_modified_at":"2026-10-19T09:13:06.971Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"6.13","status":"affected"},{"version":"0","lessThan":"6.13","status":"unaffected","versionType":"semver"},{"version":"6.12.111","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.53","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.7","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-2026-98059","source_modified_at":"2026-10-19T09:13:06.971Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"3c03a1b8ded858685a73c1ba4080adef99db4544","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98059","source_modified_at":"2026-10-19T09:13:06.971Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"6.12.111","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00168,"percentile":0.05747,"score_date":"2026-10-23"},"published_at":"2026-09-25T10:24:04.788Z","modified_at":"2026-10-19T09:13:06.971Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98059","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:13:06.971Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98059","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/bee862c79cb7e0e5c33b2df2e3a31d164705120d"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/3c03a1b8ded858685a73c1ba4080adef99db4544"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/b9205e936dde9a94e93376c8de6195b740bcd5d2"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/a453d6e3b8e8e1a321c8744d6189d763af9287d0"}],"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":"2026-10-19T09:13:06.971Z","content_hash":"f18f4094f39e1a6225f350f231a77a1abacc3db4e6e3c1e47666017ddcc23305"}}