{"api_version":"1","generated_at":"2026-08-18T05:18:23+00:00","cve":"CVE-2026-72401","urls":{"html":"https://cve.report/CVE-2026-72401","api":"https://cve.report/api/cve/CVE-2026-72401.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-72401","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-72401"},"summary":{"title":"bpf: Fix insn_aux_data leak on verifier err_free_env path","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix insn_aux_data leak on verifier err_free_env path\n\nWhen bpf_check() allocates env->insn_aux_data successfully but later\nfails to allocate env->succ, it jumps directly to err_free_env.\n\nThe existing vfree(env->insn_aux_data) sits before the err_free_env\nlabel, so that direct jump bypasses it and leaks insn_aux_data.\n\nMove vfree(env->insn_aux_data) into err_free_env so all early and late\nexit paths release it consistently.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 06:22:13","updated_at":"2026-08-17 06:19:06"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/d8df91756890de058646597367507b239a6d2025","name":"https://git.kernel.org/stable/c/d8df91756890de058646597367507b239a6d2025","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/26490a375cb9be9bac96b5171610fd85ca6c2305","name":"https://git.kernel.org/stable/c/26490a375cb9be9bac96b5171610fd85ca6c2305","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-72401","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72401","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2f69c5685427308d2f312646779313f3677536bc d8df91756890de058646597367507b239a6d2025 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2f69c5685427308d2f312646779313f3677536bc 26490a375cb9be9bac96b5171610fd85ca6c2305 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.19","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19 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":"72401","cve":"CVE-2026-72401","epss":"0.002100000","percentile":"0.114600000","score_date":"2026-08-17","updated_at":"2026-08-18 00:11:47"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/bpf/verifier.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"d8df91756890de058646597367507b239a6d2025","status":"affected","version":"2f69c5685427308d2f312646779313f3677536bc","versionType":"git"},{"lessThan":"26490a375cb9be9bac96b5171610fd85ca6c2305","status":"affected","version":"2f69c5685427308d2f312646779313f3677536bc","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["kernel/bpf/verifier.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.19"},{"lessThan":"6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.5","versionStartIncluding":"6.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"6.19","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix insn_aux_data leak on verifier err_free_env path\n\nWhen bpf_check() allocates env->insn_aux_data successfully but later\nfails to allocate env->succ, it jumps directly to err_free_env.\n\nThe existing vfree(env->insn_aux_data) sits before the err_free_env\nlabel, so that direct jump bypasses it and leaks insn_aux_data.\n\nMove vfree(env->insn_aux_data) into err_free_env so all early and late\nexit paths release it consistently."}],"providerMetadata":{"dateUpdated":"2026-08-17T05:13:58.017Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/d8df91756890de058646597367507b239a6d2025"},{"url":"https://git.kernel.org/stable/c/26490a375cb9be9bac96b5171610fd85ca6c2305"}],"title":"bpf: Fix insn_aux_data leak on verifier err_free_env path","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-72401","datePublished":"2026-08-15T05:56:26.197Z","dateReserved":"2026-08-09T03:40:39.925Z","dateUpdated":"2026-08-17T05:13:58.017Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 06:22:13","lastModifiedDate":"2026-08-17 06:19:06","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"72401","Ordinal":"1","Title":"bpf: Fix insn_aux_data leak on verifier err_free_env path","CVE":"CVE-2026-72401","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"72401","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix insn_aux_data leak on verifier err_free_env path\n\nWhen bpf_check() allocates env->insn_aux_data successfully but later\nfails to allocate env->succ, it jumps directly to err_free_env.\n\nThe existing vfree(env->insn_aux_data) sits before the err_free_env\nlabel, so that direct jump bypasses it and leaks insn_aux_data.\n\nMove vfree(env->insn_aux_data) into err_free_env so all early and late\nexit paths release it consistently.","Type":"Description","Title":"bpf: Fix insn_aux_data leak on verifier err_free_env path"}]}}}