{"api_version":"1","generated_at":"2026-07-24T20:10:09+00:00","cve":"CVE-2026-53032","urls":{"html":"https://cve.report/CVE-2026-53032","api":"https://cve.report/api/cve/CVE-2026-53032.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53032","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53032"},"summary":{"title":"bpf: Fix NULL deref in map_kptr_match_type for scalar regs","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix NULL deref in map_kptr_match_type for scalar regs\n\nCommit ab6c637ad027 (\"bpf: Fix a bpf_kptr_xchg() issue with local\nkptr\") refactored map_kptr_match_type() to branch on btf_is_kernel()\nbefore checking base_type(). A scalar register stored into a kptr\nslot has no btf, so the btf_is_kernel(reg->btf) call dereferences\nNULL.\n\nMove the base_type() != PTR_TO_BTF_ID guard before any reg->btf\naccess.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-06-24 17:17:14","updated_at":"2026-07-14 19:38:53"},"problem_types":["CWE-476"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"references":[{"url":"https://git.kernel.org/stable/c/0a36c1f72888bca0237295a4da19cd91821a90be","name":"https://git.kernel.org/stable/c/0a36c1f72888bca0237295a4da19cd91821a90be","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/da1d615ce49a47986a8864e2371a26e97861085c","name":"https://git.kernel.org/stable/c/da1d615ce49a47986a8864e2371a26e97861085c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6982653ce5f119982aa58f1af58e7bfbebf39252","name":"https://git.kernel.org/stable/c/6982653ce5f119982aa58f1af58e7bfbebf39252","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4d0a375887ab4d49e4da1ff10f9606cab8f7c3ad","name":"https://git.kernel.org/stable/c/4d0a375887ab4d49e4da1ff10f9606cab8f7c3ad","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/520454e839710c327808c2fcc98e28cee77355fc","name":"https://git.kernel.org/stable/c/520454e839710c327808c2fcc98e28cee77355fc","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53032","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53032","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ab6c637ad0276e42f8acabcbc64932a6d346dab3 520454e839710c327808c2fcc98e28cee77355fc git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ab6c637ad0276e42f8acabcbc64932a6d346dab3 0a36c1f72888bca0237295a4da19cd91821a90be git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ab6c637ad0276e42f8acabcbc64932a6d346dab3 6982653ce5f119982aa58f1af58e7bfbebf39252 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ab6c637ad0276e42f8acabcbc64932a6d346dab3 da1d615ce49a47986a8864e2371a26e97861085c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ab6c637ad0276e42f8acabcbc64932a6d346dab3 4d0a375887ab4d49e4da1ff10f9606cab8f7c3ad git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected af3d2e0f3a54e67806959d161e613457772babc5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4782968e0d631b0d8944dcfd4bf8fb49be087101 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.4.16 6.5 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.5.3 6.6 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.6","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.141 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.91 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.33 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.10 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2026","cve_id":"53032","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"53032","cve":"CVE-2026-53032","epss":"0.001680000","percentile":"0.063470000","score_date":"2026-07-13","updated_at":"2026-07-14 00:13:15"},"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":"520454e839710c327808c2fcc98e28cee77355fc","status":"affected","version":"ab6c637ad0276e42f8acabcbc64932a6d346dab3","versionType":"git"},{"lessThan":"0a36c1f72888bca0237295a4da19cd91821a90be","status":"affected","version":"ab6c637ad0276e42f8acabcbc64932a6d346dab3","versionType":"git"},{"lessThan":"6982653ce5f119982aa58f1af58e7bfbebf39252","status":"affected","version":"ab6c637ad0276e42f8acabcbc64932a6d346dab3","versionType":"git"},{"lessThan":"da1d615ce49a47986a8864e2371a26e97861085c","status":"affected","version":"ab6c637ad0276e42f8acabcbc64932a6d346dab3","versionType":"git"},{"lessThan":"4d0a375887ab4d49e4da1ff10f9606cab8f7c3ad","status":"affected","version":"ab6c637ad0276e42f8acabcbc64932a6d346dab3","versionType":"git"},{"status":"affected","version":"af3d2e0f3a54e67806959d161e613457772babc5","versionType":"git"},{"status":"affected","version":"4782968e0d631b0d8944dcfd4bf8fb49be087101","versionType":"git"},{"lessThan":"6.5","status":"affected","version":"6.4.16","versionType":"semver"},{"lessThan":"6.6","status":"affected","version":"6.5.3","versionType":"semver"}]},{"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":"6.6"},{"lessThan":"6.6","status":"unaffected","version":"0","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","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.141","versionStartIncluding":"6.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.91","versionStartIncluding":"6.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.33","versionStartIncluding":"6.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.10","versionStartIncluding":"6.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"6.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5.3","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix NULL deref in map_kptr_match_type for scalar regs\n\nCommit ab6c637ad027 (\"bpf: Fix a bpf_kptr_xchg() issue with local\nkptr\") refactored map_kptr_match_type() to branch on btf_is_kernel()\nbefore checking base_type(). A scalar register stored into a kptr\nslot has no btf, so the btf_is_kernel(reg->btf) call dereferences\nNULL.\n\nMove the base_type() != PTR_TO_BTF_ID guard before any reg->btf\naccess."}],"providerMetadata":{"dateUpdated":"2026-06-24T16:29:39.916Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/520454e839710c327808c2fcc98e28cee77355fc"},{"url":"https://git.kernel.org/stable/c/0a36c1f72888bca0237295a4da19cd91821a90be"},{"url":"https://git.kernel.org/stable/c/6982653ce5f119982aa58f1af58e7bfbebf39252"},{"url":"https://git.kernel.org/stable/c/da1d615ce49a47986a8864e2371a26e97861085c"},{"url":"https://git.kernel.org/stable/c/4d0a375887ab4d49e4da1ff10f9606cab8f7c3ad"}],"title":"bpf: Fix NULL deref in map_kptr_match_type for scalar regs","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-53032","datePublished":"2026-06-24T16:29:39.916Z","dateReserved":"2026-06-09T07:44:35.380Z","dateUpdated":"2026-06-24T16:29:39.916Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-24 17:17:14","lastModifiedDate":"2026-07-14 19:38:53","problem_types":["CWE-476"],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4.16","versionEndExcluding":"6.5","matchCriteriaId":"A5099559-2D15-42A5-A561-71B34FEFF36F"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5.3","versionEndExcluding":"6.6.141","matchCriteriaId":"D7743513-2F73-438A-9F46-C52F85BBB5FD"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.12.91","matchCriteriaId":"C918746B-DE6F-448F-A93E-A04C5481688D"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.13","versionEndExcluding":"6.18.33","matchCriteriaId":"96D99E49-380D-43AB-BDBA-25C3AD018A9C"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"7.0.10","matchCriteriaId":"A13475D2-59BF-4716-94B5-7C1D239A2CF4"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"53032","Ordinal":"1","Title":"bpf: Fix NULL deref in map_kptr_match_type for scalar regs","CVE":"CVE-2026-53032","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53032","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix NULL deref in map_kptr_match_type for scalar regs\n\nCommit ab6c637ad027 (\"bpf: Fix a bpf_kptr_xchg() issue with local\nkptr\") refactored map_kptr_match_type() to branch on btf_is_kernel()\nbefore checking base_type(). A scalar register stored into a kptr\nslot has no btf, so the btf_is_kernel(reg->btf) call dereferences\nNULL.\n\nMove the base_type() != PTR_TO_BTF_ID guard before any reg->btf\naccess.","Type":"Description","Title":"bpf: Fix NULL deref in map_kptr_match_type for scalar regs"}]}}}