CVE-2026-74360

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74360", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.887Z", "datePublished": "2026-08-15T05:58:44.158Z", "dateUpdated": "2026-08-17T05:17:54.663Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:17:54.663Z"}, "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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/bpf/map_iter.c"], "versions": [{"version": "baefdbdf6812e120c9fba9cfb101d3656f478026", "lessThan": "5cf2c85b1231218a3e3e9f188afb4fe2e17903d5", "status": "affected", "versionType": "git"}, {"version": "baefdbdf6812e120c9fba9cfb101d3656f478026", "lessThan": "c3da741d5b2119c61c4498bc936f0fc1dbc3c79b", "status": "affected", "versionType": "git"}, {"version": "baefdbdf6812e120c9fba9cfb101d3656f478026", "lessThan": "3c56ee343f9412d81918635c3e25e22a5dd6d87e", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/bpf/map_iter.c"], "versions": [{"version": "6.18", "status": "affected"}, {"version": "0", "lessThan": "6.18", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18", "versionEndExcluding": "7.2"}]}]}], "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"}}}}

{}

{"affected": [{"affectedData": [{"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", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "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."}], "id": "CVE-2026-74360", "lastModified": "2026-08-17T06:19:30.767", "metrics": {}, "published": "2026-08-15T06:22:37.567", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3c56ee343f9412d81918635c3e25e22a5dd6d87e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5cf2c85b1231218a3e3e9f188afb4fe2e17903d5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c3da741d5b2119c61c4498bc936f0fc1dbc3c79b"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: bpf: Reject exclusive maps for bpf_map_elem iterators", "id": "2516841", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516841"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-551", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nbpf: Reject exclusive maps for bpf_map_elem iterators\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.\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.", "A flaw was found in the Linux kernel's Berkeley Packet Filter (BPF) subsystem. The `bpf_map_elem` iterator does not properly enforce exclusivity checks for certain maps, allowing it to bind to an exclusive map. This oversight exposes the map's value as a writable buffer. A local attacker could leverage this to perform unauthorized modifications to data within these exclusive maps, potentially leading to privilege escalation or information disclosure."], "name": "CVE-2026-74360", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-74360\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-74360\nhttps://lore.kernel.org/linux-cve-announce/2026081501-CVE-2026-74360-6213@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[baefdbdf6812e120c9fba9cfb101d3656f478026,5cf2c85b1231218a3e3e9f188afb4fe2e17903d5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[baefdbdf6812e120c9fba9cfb101d3656f478026,c3da741d5b2119c61c4498bc936f0fc1dbc3c79b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[baefdbdf6812e120c9fba9cfb101d3656f478026,3c56ee343f9412d81918635c3e25e22a5dd6d87e)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.18"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.18)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.40,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.5,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-15T13:00:05.627129+00:00", "updated": "2026-08-22T03:00:12.233448+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}