{"api_version":"1","generated_at":"2026-08-15T08:46:03+00:00","cve":"CVE-2026-74360","urls":{"html":"https://cve.report/CVE-2026-74360","api":"https://cve.report/api/cve/CVE-2026-74360.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74360","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74360"},"summary":{"title":"bpf: Reject exclusive maps for bpf_map_elem iterators","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Reject exclusive maps for bpf_map_elem iterators\n\nExclusive maps (aka excl_prog_hash) are meant to be reachable only\nfrom the single program whose hash matches. This is enforced by\ncheck_map_prog_compatibility() when the map is referenced from a\nprogram such as signed BPF loaders.\n\nA bpf_map_elem iterator, however, binds its target map at attach\ntime in bpf_iter_attach_map() instead of referencing it from the\nprogram, so the exclusivity check is never reached. On top of that,\nthe iterator exposes the map value as a writable buffer.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 06:22:37","updated_at":"2026-08-15 06:22:37"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/5cf2c85b1231218a3e3e9f188afb4fe2e17903d5","name":"https://git.kernel.org/stable/c/5cf2c85b1231218a3e3e9f188afb4fe2e17903d5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3c56ee343f9412d81918635c3e25e22a5dd6d87e","name":"https://git.kernel.org/stable/c/3c56ee343f9412d81918635c3e25e22a5dd6d87e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c3da741d5b2119c61c4498bc936f0fc1dbc3c79b","name":"https://git.kernel.org/stable/c/c3da741d5b2119c61c4498bc936f0fc1dbc3c79b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74360","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74360","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected baefdbdf6812e120c9fba9cfb101d3656f478026 5cf2c85b1231218a3e3e9f188afb4fe2e17903d5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected baefdbdf6812e120c9fba9cfb101d3656f478026 c3da741d5b2119c61c4498bc936f0fc1dbc3c79b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected baefdbdf6812e120c9fba9cfb101d3656f478026 3c56ee343f9412d81918635c3e25e22a5dd6d87e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.18","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.40 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.5 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/bpf/map_iter.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"5cf2c85b1231218a3e3e9f188afb4fe2e17903d5","status":"affected","version":"baefdbdf6812e120c9fba9cfb101d3656f478026","versionType":"git"},{"lessThan":"c3da741d5b2119c61c4498bc936f0fc1dbc3c79b","status":"affected","version":"baefdbdf6812e120c9fba9cfb101d3656f478026","versionType":"git"},{"lessThan":"3c56ee343f9412d81918635c3e25e22a5dd6d87e","status":"affected","version":"baefdbdf6812e120c9fba9cfb101d3656f478026","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["kernel/bpf/map_iter.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.40","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.40","versionStartIncluding":"6.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.5","versionStartIncluding":"6.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc1","versionStartIncluding":"6.18","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Reject exclusive maps for bpf_map_elem iterators\n\nExclusive maps (aka excl_prog_hash) are meant to be reachable only\nfrom the single program whose hash matches. This is enforced by\ncheck_map_prog_compatibility() when the map is referenced from a\nprogram such as signed BPF loaders.\n\nA bpf_map_elem iterator, however, binds its target map at attach\ntime in bpf_iter_attach_map() instead of referencing it from the\nprogram, so the exclusivity check is never reached. On top of that,\nthe iterator exposes the map value as a writable buffer."}],"providerMetadata":{"dateUpdated":"2026-08-15T05:58:44.158Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/5cf2c85b1231218a3e3e9f188afb4fe2e17903d5"},{"url":"https://git.kernel.org/stable/c/c3da741d5b2119c61c4498bc936f0fc1dbc3c79b"},{"url":"https://git.kernel.org/stable/c/3c56ee343f9412d81918635c3e25e22a5dd6d87e"}],"title":"bpf: Reject exclusive maps for bpf_map_elem iterators","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74360","datePublished":"2026-08-15T05:58:44.158Z","dateReserved":"2026-08-15T05:44:03.887Z","dateUpdated":"2026-08-15T05:58:44.158Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 06:22:37","lastModifiedDate":"2026-08-15 06:22:37","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74360","Ordinal":"1","Title":"bpf: Reject exclusive maps for bpf_map_elem iterators","CVE":"CVE-2026-74360","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74360","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Reject exclusive maps for bpf_map_elem iterators\n\nExclusive maps (aka excl_prog_hash) are meant to be reachable only\nfrom the single program whose hash matches. This is enforced by\ncheck_map_prog_compatibility() when the map is referenced from a\nprogram such as signed BPF loaders.\n\nA bpf_map_elem iterator, however, binds its target map at attach\ntime in bpf_iter_attach_map() instead of referencing it from the\nprogram, so the exclusivity check is never reached. On top of that,\nthe iterator exposes the map value as a writable buffer.","Type":"Description","Title":"bpf: Reject exclusive maps for bpf_map_elem iterators"}]}}}