{"api_version":"1","generated_at":"2026-08-20T07:16:47+00:00","cve":"CVE-2026-72460","urls":{"html":"https://cve.report/CVE-2026-72460","api":"https://cve.report/api/cve/CVE-2026-72460.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-72460","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-72460"},"summary":{"title":"apparmor: check label build before no_new_privs test","description":"In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: check label build before no_new_privs test\n\naa_change_profile() builds a replacement label with\nfn_label_build_in_scope() before the no_new_privs subset check. The build\nhelper can fail and return NULL or an ERR_PTR, but the result was passed\nto aa_label_is_unconfined_subset() before the existing IS_ERR_OR_NULL()\ncheck.\n\nReuse the existing target-label build failure handling immediately after\nthe build. This preserves the current audit handling while preventing the\nsubset helper from dereferencing an invalid label.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 06:22:19","updated_at":"2026-08-17 06:19:13"},"problem_types":[],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"7.1","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","baseScore":7.1,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.1","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","data":{"baseScore":7.1,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/a58cafd38b46fb1a2220e2fbbcfe291ea75fa147","name":"https://git.kernel.org/stable/c/a58cafd38b46fb1a2220e2fbbcfe291ea75fa147","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a29f06db44b4c94597ded58f639eed3e21781ac3","name":"https://git.kernel.org/stable/c/a29f06db44b4c94597ded58f639eed3e21781ac3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d84bb195d208adbf77f012ca2a96e11163f6def1","name":"https://git.kernel.org/stable/c/d84bb195d208adbf77f012ca2a96e11163f6def1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/31cb109db5e6322ed22304fd5c0dedbaa438d6d3","name":"https://git.kernel.org/stable/c/31cb109db5e6322ed22304fd5c0dedbaa438d6d3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b7c45c05a396a017c49ac7949de240a0dfc0ac4e","name":"https://git.kernel.org/stable/c/b7c45c05a396a017c49ac7949de240a0dfc0ac4e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d82160132345688a09cbaa648cfdd16bb32e8ea2","name":"https://git.kernel.org/stable/c/d82160132345688a09cbaa648cfdd16bb32e8ea2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/cfc224866530a6842b6c2d2d30ef6a9b0e64bb9c","name":"https://git.kernel.org/stable/c/cfc224866530a6842b6c2d2d30ef6a9b0e64bb9c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ec926b2a351eeeb31e6c9aee02e0c32f94b5588f","name":"https://git.kernel.org/stable/c/ec926b2a351eeeb31e6c9aee02e0c32f94b5588f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-72460","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72460","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e00b02bb6ac2a1893227ce8014b649028d6425d2 a29f06db44b4c94597ded58f639eed3e21781ac3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e00b02bb6ac2a1893227ce8014b649028d6425d2 cfc224866530a6842b6c2d2d30ef6a9b0e64bb9c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e00b02bb6ac2a1893227ce8014b649028d6425d2 31cb109db5e6322ed22304fd5c0dedbaa438d6d3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e00b02bb6ac2a1893227ce8014b649028d6425d2 b7c45c05a396a017c49ac7949de240a0dfc0ac4e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.212 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.178 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.145 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.97 6.12.* 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 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"72460","cve":"CVE-2026-72460","epss":"0.001310000","percentile":"0.031460000","score_date":"2026-08-17","updated_at":"2026-08-18 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the Linux kernel, the following vulnerability has been resolved:\n\napparmor: check label build before no_new_privs test\n\naa_change_profile() builds a replacement label with\nfn_label_build_in_scope() before the no_new_privs subset check. The build\nhelper can fail and return NULL or an ERR_PTR, but the result was passed\nto aa_label_is_unconfined_subset() before the existing IS_ERR_OR_NULL()\ncheck.\n\nReuse the existing target-label build failure handling immediately after\nthe build. This preserves the current audit handling while preventing the\nsubset helper from dereferencing an invalid label."}],"metrics":[{"cvssV3_1":{"baseScore":7.1,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"scenarios":[{"lang":"en","value":"AV:L - The flaw is reached only through a local write to /proc/self/attr/current or /proc/self/attr/exec (changeprofile/exec), which flows through proc_pid_attr_write and the AppArmor setprocattr hook into aa_change_profile(); there is no network, adjacent-radio, or physical-device entry point.\nAC:L - Once a confined task with policy-granted changeprofile and PR_SET_NO_NEW_PRIVS calls the interface, fn_label_build_in_scope() failure (e.g., GFP_KERNEL ENOMEM from memory pressure) is reliably attacker-influenced and immediately triggers the invalid dereference without races or victim-dependent timing.\nPR:L - Exploitation requires a local unprivileged process confined by AppArmor whose policy permits changeprofile/onexec to the requested target; prctl(PR_SET_NO_NEW_PRIVS) is self-settable and does not require real root or init-namespace capabilities.\nUI:N - The attacker triggers the bug by writing to their own process attribute file; no separate victim action such as opening a file, mounting a filesystem, or clicking a link is required.\nS:U - The vulnerable AppArmor kernel code and the resulting kernel oops/panic affect the same OS security authority; this is not a VM escape, IOMMU bypass, or cross-authority sandbox breakout as defined by CVSS scope.\nC:H - aa_label_is_unconfined_subset() dereferences the failed label pointer (NULL or ERR_PTR) to read aa_label fields such as size/vec; ERR_PTR values are non-NULL kernel-range addresses, so the fault path includes an invalid kernel-memory read that can leak data before oops under worst-case layout.\nI:N - The bug performs invalid reads through a bad label pointer and does not write memory, corrupt adjacent objects, or complete an unauthorized aa_replace_current_label(); failed builds are still rejected later, so integrity impact is limited to the read-side fault rather than modification or code execution.\nA:H - Dereferencing NULL or ERR_PTR labels in aa_label_is_unconfined_subset() causes a kernel BUG/oops/panic, yielding host-wide denial of service on AppArmor-enabled systems and repeatable crashes from the same procattr write."}]}],"providerMetadata":{"dateUpdated":"2026-08-17T05:44:26.306Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/a29f06db44b4c94597ded58f639eed3e21781ac3"},{"url":"https://git.kernel.org/stable/c/cfc224866530a6842b6c2d2d30ef6a9b0e64bb9c"},{"url":"https://git.kernel.org/stable/c/31cb109db5e6322ed22304fd5c0dedbaa438d6d3"},{"url":"https://git.kernel.org/stable/c/b7c45c05a396a017c49ac7949de240a0dfc0ac4e"},{"url":"https://git.kernel.org/stable/c/d84bb195d208adbf77f012ca2a96e11163f6def1"},{"url":"https://git.kernel.org/stable/c/d82160132345688a09cbaa648cfdd16bb32e8ea2"},{"url":"https://git.kernel.org/stable/c/ec926b2a351eeeb31e6c9aee02e0c32f94b5588f"},{"url":"https://git.kernel.org/stable/c/a58cafd38b46fb1a2220e2fbbcfe291ea75fa147"}],"title":"apparmor: check label build before no_new_privs test","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-72460","datePublished":"2026-08-15T05:57:05.404Z","dateReserved":"2026-08-09T03:40:39.932Z","dateUpdated":"2026-08-17T05:44:26.306Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 06:22:19","lastModifiedDate":"2026-08-17 06:19:13","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","baseScore":7.1,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.2}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"72460","Ordinal":"1","Title":"apparmor: check label build before no_new_privs test","CVE":"CVE-2026-72460","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"72460","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: check label build before no_new_privs test\n\naa_change_profile() builds a replacement label with\nfn_label_build_in_scope() before the no_new_privs subset check. The build\nhelper can fail and return NULL or an ERR_PTR, but the result was passed\nto aa_label_is_unconfined_subset() before the existing IS_ERR_OR_NULL()\ncheck.\n\nReuse the existing target-label build failure handling immediately after\nthe build. This preserves the current audit handling while preventing the\nsubset helper from dereferencing an invalid label.","Type":"Description","Title":"apparmor: check label build before no_new_privs test"}]}}}