{"api_version":"1","generated_at":"2026-10-08T08:02:08+00:00","cve":"CVE-2026-98059","urls":{"html":"https://cve.report/CVE-2026-98059","api":"https://cve.report/api/cve/CVE-2026-98059.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98059","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98059"},"summary":{"title":"bpf: Mark sched_process_wait argument as nullable","description":"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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-25 11:17:34","updated_at":"2026-09-30 14:10:59"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/3c03a1b8ded858685a73c1ba4080adef99db4544","name":"https://git.kernel.org/stable/c/3c03a1b8ded858685a73c1ba4080adef99db4544","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a453d6e3b8e8e1a321c8744d6189d763af9287d0","name":"https://git.kernel.org/stable/c/a453d6e3b8e8e1a321c8744d6189d763af9287d0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b9205e936dde9a94e93376c8de6195b740bcd5d2","name":"https://git.kernel.org/stable/c/b9205e936dde9a94e93376c8de6195b740bcd5d2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/bee862c79cb7e0e5c33b2df2e3a31d164705120d","name":"https://git.kernel.org/stable/c/bee862c79cb7e0e5c33b2df2e3a31d164705120d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98059","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98059","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b2fc4b17fc13810ef440fb323fad3981cd174985 bee862c79cb7e0e5c33b2df2e3a31d164705120d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 838a10bd2ebfe11a60dd67687533a7cfc220cc86 3c03a1b8ded858685a73c1ba4080adef99db4544 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 838a10bd2ebfe11a60dd67687533a7cfc220cc86 b9205e936dde9a94e93376c8de6195b740bcd5d2 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 838a10bd2ebfe11a60dd67687533a7cfc220cc86 a453d6e3b8e8e1a321c8744d6189d763af9287d0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.12.6 6.12.111 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.13","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.13 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.111 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.53 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.7 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"98059","cve":"CVE-2026-98059","epss":"0.001680000","percentile":"0.053930000","score_date":"2026-09-27","updated_at":"2026-09-28 00:02:24"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/bpf/btf.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"bee862c79cb7e0e5c33b2df2e3a31d164705120d","status":"affected","version":"b2fc4b17fc13810ef440fb323fad3981cd174985","versionType":"git"},{"lessThan":"3c03a1b8ded858685a73c1ba4080adef99db4544","status":"affected","version":"838a10bd2ebfe11a60dd67687533a7cfc220cc86","versionType":"git"},{"lessThan":"b9205e936dde9a94e93376c8de6195b740bcd5d2","status":"affected","version":"838a10bd2ebfe11a60dd67687533a7cfc220cc86","versionType":"git"},{"lessThan":"a453d6e3b8e8e1a321c8744d6189d763af9287d0","status":"affected","version":"838a10bd2ebfe11a60dd67687533a7cfc220cc86","versionType":"git"},{"lessThan":"6.12.111","status":"affected","version":"6.12.6","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["kernel/bpf/btf.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.13"},{"lessThan":"6.13","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.111","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.53","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.7","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.111","versionStartIncluding":"6.12.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.53","versionStartIncluding":"6.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.7","versionStartIncluding":"6.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc2","versionStartIncluding":"6.13","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"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."}],"providerMetadata":{"dateUpdated":"2026-09-25T10:24:04.788Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/bee862c79cb7e0e5c33b2df2e3a31d164705120d"},{"url":"https://git.kernel.org/stable/c/3c03a1b8ded858685a73c1ba4080adef99db4544"},{"url":"https://git.kernel.org/stable/c/b9205e936dde9a94e93376c8de6195b740bcd5d2"},{"url":"https://git.kernel.org/stable/c/a453d6e3b8e8e1a321c8744d6189d763af9287d0"}],"title":"bpf: Mark sched_process_wait argument as nullable","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98059","datePublished":"2026-09-25T10:24:04.788Z","dateReserved":"2026-09-25T10:19:56.072Z","dateUpdated":"2026-09-25T10:24:04.788Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-25 11:17:34","lastModifiedDate":"2026-09-30 14:10:59","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98059","Ordinal":"1","Title":"bpf: Mark sched_process_wait argument as nullable","CVE":"CVE-2026-98059","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98059","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"bpf: Mark sched_process_wait argument as nullable"}]}}}