{"api_version":"1","generated_at":"2026-10-01T07:41:47+00:00","cve":"CVE-2026-98007","urls":{"html":"https://cve.report/CVE-2026-98007","api":"https://cve.report/api/cve/CVE-2026-98007.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98007","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98007"},"summary":{"title":"bpf: Reject non-scalar bpf_loop iteration counts","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Reject non-scalar bpf_loop iteration counts\n\nbpf_loop() declares its nr_loops argument as ARG_ANYTHING. Privileged\nprograms may pass pointer values to such arguments, so check_func_arg()\nlets a pointer-valued R1 reach the helper-specific checks.\n\nSince commit bb124da69c47 (\"bpf: keep track of max number of bpf_loop\ncallback iterations\"), the verifier marks R1 precise and reads its upper\nbound to limit callback simulation. Precision backtracking only accepts\nscalar registers, so passing a pointer instead triggers the \"backtracking\nmisuse\" verifier warning. Kernels with panic_on_warn enabled subsequently\npanic.\n\nIntroduce ARG_SCALAR for helper arguments that only accept scalar values\nand use it for bpf_loop() nr_loops. Generic helper argument validation then\nrejects pointers before loop inlining and precision processing.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-25 11:17:28","updated_at":"2026-09-25 11:17:28"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/e2e1161e03fecff6d2229a81b024337144bfcd97","name":"https://git.kernel.org/stable/c/e2e1161e03fecff6d2229a81b024337144bfcd97","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c3fd8e5fd100f122bad503bdc0e9277219533253","name":"https://git.kernel.org/stable/c/c3fd8e5fd100f122bad503bdc0e9277219533253","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/656d40d1ca228ee21a9b3280432479fc9eae75ab","name":"https://git.kernel.org/stable/c/656d40d1ca228ee21a9b3280432479fc9eae75ab","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f8ae8275c721334ee50fafdd986fb83294eb941a","name":"https://git.kernel.org/stable/c/f8ae8275c721334ee50fafdd986fb83294eb941a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98007","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98007","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected bb124da69c47dd98d69361ec13244ece50bec63e 656d40d1ca228ee21a9b3280432479fc9eae75ab git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected bb124da69c47dd98d69361ec13244ece50bec63e e2e1161e03fecff6d2229a81b024337144bfcd97 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected bb124da69c47dd98d69361ec13244ece50bec63e f8ae8275c721334ee50fafdd986fb83294eb941a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected bb124da69c47dd98d69361ec13244ece50bec63e c3fd8e5fd100f122bad503bdc0e9277219533253 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected bfc5c19b4b48840627af0d0f1c8f4461b276e508 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.6.15 6.7 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.7","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.7 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":"98007","cve":"CVE-2026-98007","epss":"0.001680000","percentile":"0.053860000","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":["include/linux/bpf.h","kernel/bpf/bpf_iter.c","kernel/bpf/verifier.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"656d40d1ca228ee21a9b3280432479fc9eae75ab","status":"affected","version":"bb124da69c47dd98d69361ec13244ece50bec63e","versionType":"git"},{"lessThan":"e2e1161e03fecff6d2229a81b024337144bfcd97","status":"affected","version":"bb124da69c47dd98d69361ec13244ece50bec63e","versionType":"git"},{"lessThan":"f8ae8275c721334ee50fafdd986fb83294eb941a","status":"affected","version":"bb124da69c47dd98d69361ec13244ece50bec63e","versionType":"git"},{"lessThan":"c3fd8e5fd100f122bad503bdc0e9277219533253","status":"affected","version":"bb124da69c47dd98d69361ec13244ece50bec63e","versionType":"git"},{"status":"affected","version":"bfc5c19b4b48840627af0d0f1c8f4461b276e508","versionType":"git"},{"lessThan":"6.7","status":"affected","version":"6.6.15","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["include/linux/bpf.h","kernel/bpf/bpf_iter.c","kernel/bpf/verifier.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.7"},{"lessThan":"6.7","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":"6.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.53","versionStartIncluding":"6.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.7","versionStartIncluding":"6.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc2","versionStartIncluding":"6.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.15","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Reject non-scalar bpf_loop iteration counts\n\nbpf_loop() declares its nr_loops argument as ARG_ANYTHING. Privileged\nprograms may pass pointer values to such arguments, so check_func_arg()\nlets a pointer-valued R1 reach the helper-specific checks.\n\nSince commit bb124da69c47 (\"bpf: keep track of max number of bpf_loop\ncallback iterations\"), the verifier marks R1 precise and reads its upper\nbound to limit callback simulation. Precision backtracking only accepts\nscalar registers, so passing a pointer instead triggers the \"backtracking\nmisuse\" verifier warning. Kernels with panic_on_warn enabled subsequently\npanic.\n\nIntroduce ARG_SCALAR for helper arguments that only accept scalar values\nand use it for bpf_loop() nr_loops. Generic helper argument validation then\nrejects pointers before loop inlining and precision processing."}],"providerMetadata":{"dateUpdated":"2026-09-25T10:23:32.939Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/656d40d1ca228ee21a9b3280432479fc9eae75ab"},{"url":"https://git.kernel.org/stable/c/e2e1161e03fecff6d2229a81b024337144bfcd97"},{"url":"https://git.kernel.org/stable/c/f8ae8275c721334ee50fafdd986fb83294eb941a"},{"url":"https://git.kernel.org/stable/c/c3fd8e5fd100f122bad503bdc0e9277219533253"}],"title":"bpf: Reject non-scalar bpf_loop iteration counts","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98007","datePublished":"2026-09-25T10:23:32.939Z","dateReserved":"2026-09-25T10:19:56.068Z","dateUpdated":"2026-09-25T10:23:32.939Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-25 11:17:28","lastModifiedDate":"2026-09-25 11:17:28","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98007","Ordinal":"1","Title":"bpf: Reject non-scalar bpf_loop iteration counts","CVE":"CVE-2026-98007","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98007","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Reject non-scalar bpf_loop iteration counts\n\nbpf_loop() declares its nr_loops argument as ARG_ANYTHING. Privileged\nprograms may pass pointer values to such arguments, so check_func_arg()\nlets a pointer-valued R1 reach the helper-specific checks.\n\nSince commit bb124da69c47 (\"bpf: keep track of max number of bpf_loop\ncallback iterations\"), the verifier marks R1 precise and reads its upper\nbound to limit callback simulation. Precision backtracking only accepts\nscalar registers, so passing a pointer instead triggers the \"backtracking\nmisuse\" verifier warning. Kernels with panic_on_warn enabled subsequently\npanic.\n\nIntroduce ARG_SCALAR for helper arguments that only accept scalar values\nand use it for bpf_loop() nr_loops. Generic helper argument validation then\nrejects pointers before loop inlining and precision processing.","Type":"Description","Title":"bpf: Reject non-scalar bpf_loop iteration counts"}]}}}