{"api_version":"1","generated_at":"2026-06-02T18:12:30+00:00","cve":"CVE-2026-45838","urls":{"html":"https://cve.report/CVE-2026-45838","api":"https://cve.report/api/cve/CVE-2026-45838.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-45838","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-45838"},"summary":{"title":"bpf: fix end-of-list detection in cgroup_storage_get_next_key()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: fix end-of-list detection in cgroup_storage_get_next_key()\n\nlist_next_entry() never returns NULL -- when the current element is the\nlast entry it wraps to the list head via container_of(). The subsequent\nNULL check is therefore dead code and get_next_key() never returns\n-ENOENT for the last element, instead reading storage->key from a bogus\npointer that aliases internal map fields and copying the result to\nuserspace.\n\nReplace it with list_entry_is_head() so the function correctly returns\n-ENOENT when there are no more entries.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-27 11:16:23","updated_at":"2026-06-01 17:17:11"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/b4b5a20bed82130da2f2818f04d52378952fbd0b","name":"https://git.kernel.org/stable/c/b4b5a20bed82130da2f2818f04d52378952fbd0b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2c88b2d96e1d4d0c7c4589a4593d4cdee6d332d6","name":"https://git.kernel.org/stable/c/2c88b2d96e1d4d0c7c4589a4593d4cdee6d332d6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/26d3339e465e54107bd85884341d1609c5300d6a","name":"https://git.kernel.org/stable/c/26d3339e465e54107bd85884341d1609c5300d6a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/32ce55d424395904986f5066f8755f6cb9993377","name":"https://git.kernel.org/stable/c/32ce55d424395904986f5066f8755f6cb9993377","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/fc39753b7f92e09177777e9c648afe5aa3abb81f","name":"https://git.kernel.org/stable/c/fc39753b7f92e09177777e9c648afe5aa3abb81f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0f3d9dd5e1fd52b39e25328307c6a694e994ffe3","name":"https://git.kernel.org/stable/c/0f3d9dd5e1fd52b39e25328307c6a694e994ffe3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/85a2f30e40f7468db732f55659bc6318874f49af","name":"https://git.kernel.org/stable/c/85a2f30e40f7468db732f55659bc6318874f49af","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5828b9e5b272ecff7cf5d345128d3de7324117f7","name":"https://git.kernel.org/stable/c/5828b9e5b272ecff7cf5d345128d3de7324117f7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-45838","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45838","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected de9cbbaadba5adf88a19e46df61f7054000838f6 0f3d9dd5e1fd52b39e25328307c6a694e994ffe3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected de9cbbaadba5adf88a19e46df61f7054000838f6 26d3339e465e54107bd85884341d1609c5300d6a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected de9cbbaadba5adf88a19e46df61f7054000838f6 2c88b2d96e1d4d0c7c4589a4593d4cdee6d332d6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected de9cbbaadba5adf88a19e46df61f7054000838f6 b4b5a20bed82130da2f2818f04d52378952fbd0b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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00:05:19"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/bpf/local_storage.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"0f3d9dd5e1fd52b39e25328307c6a694e994ffe3","status":"affected","version":"de9cbbaadba5adf88a19e46df61f7054000838f6","versionType":"git"},{"lessThan":"26d3339e465e54107bd85884341d1609c5300d6a","status":"affected","version":"de9cbbaadba5adf88a19e46df61f7054000838f6","versionType":"git"},{"lessThan":"2c88b2d96e1d4d0c7c4589a4593d4cdee6d332d6","status":"affected","version":"de9cbbaadba5adf88a19e46df61f7054000838f6","versionType":"git"},{"lessThan":"b4b5a20bed82130da2f2818f04d52378952fbd0b","status":"affected","version":"de9cbbaadba5adf88a19e46df61f7054000838f6","versionType":"git"},{"lessThan":"85a2f30e40f7468db732f55659bc6318874f49af","status":"affected","version":"de9cbbaadba5adf88a19e46df61f7054000838f6","versionType":"git"},{"lessThan":"32ce55d424395904986f5066f8755f6cb9993377","status":"affected","version":"de9cbbaadba5adf88a19e46df61f7054000838f6","versionType":"git"},{"lessThan":"fc39753b7f92e09177777e9c648afe5aa3abb81f","status":"affected","version":"de9cbbaadba5adf88a19e46df61f7054000838f6","versionType":"git"},{"lessThan":"5828b9e5b272ecff7cf5d345128d3de7324117f7","status":"affected","version":"de9cbbaadba5adf88a19e46df61f7054000838f6","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["kernel/bpf/local_storage.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.19"},{"lessThan":"4.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.141","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.91","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.33","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.258","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.209","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.175","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.141","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.91","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.33","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.10","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1-rc1","versionStartIncluding":"4.19","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: fix end-of-list detection in cgroup_storage_get_next_key()\n\nlist_next_entry() never returns NULL -- when the current element is the\nlast entry it wraps to the list head via container_of(). The subsequent\nNULL check is therefore dead code and get_next_key() never returns\n-ENOENT for the last element, instead reading storage->key from a bogus\npointer that aliases internal map fields and copying the result to\nuserspace.\n\nReplace it with list_entry_is_head() so the function correctly returns\n-ENOENT when there are no more entries."}],"providerMetadata":{"dateUpdated":"2026-06-01T16:16:20.101Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/0f3d9dd5e1fd52b39e25328307c6a694e994ffe3"},{"url":"https://git.kernel.org/stable/c/26d3339e465e54107bd85884341d1609c5300d6a"},{"url":"https://git.kernel.org/stable/c/2c88b2d96e1d4d0c7c4589a4593d4cdee6d332d6"},{"url":"https://git.kernel.org/stable/c/b4b5a20bed82130da2f2818f04d52378952fbd0b"},{"url":"https://git.kernel.org/stable/c/85a2f30e40f7468db732f55659bc6318874f49af"},{"url":"https://git.kernel.org/stable/c/32ce55d424395904986f5066f8755f6cb9993377"},{"url":"https://git.kernel.org/stable/c/fc39753b7f92e09177777e9c648afe5aa3abb81f"},{"url":"https://git.kernel.org/stable/c/5828b9e5b272ecff7cf5d345128d3de7324117f7"}],"title":"bpf: fix end-of-list detection in cgroup_storage_get_next_key()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-45838","datePublished":"2026-05-27T09:24:36.561Z","dateReserved":"2026-05-13T15:03:33.077Z","dateUpdated":"2026-06-01T16:16:20.101Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-27 11:16:23","lastModifiedDate":"2026-06-01 17:17:11","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"45838","Ordinal":"1","Title":"bpf: fix end-of-list detection in cgroup_storage_get_next_key()","CVE":"CVE-2026-45838","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"45838","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: fix end-of-list detection in cgroup_storage_get_next_key()\n\nlist_next_entry() never returns NULL -- when the current element is the\nlast entry it wraps to the list head via container_of(). The subsequent\nNULL check is therefore dead code and get_next_key() never returns\n-ENOENT for the last element, instead reading storage->key from a bogus\npointer that aliases internal map fields and copying the result to\nuserspace.\n\nReplace it with list_entry_is_head() so the function correctly returns\n-ENOENT when there are no more entries.","Type":"Description","Title":"bpf: fix end-of-list detection in cgroup_storage_get_next_key()"}]}}}