{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53032","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-06-09T07:44:35.380Z","datePublished":"2026-06-24T16:29:39.916Z","dateUpdated":"2026-06-24T16:29:39.916Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-06-24T16:29:39.916Z"},"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/bpf/verifier.c"],"versions":[{"version":"ab6c637ad0276e42f8acabcbc64932a6d346dab3","lessThan":"520454e839710c327808c2fcc98e28cee77355fc","status":"affected","versionType":"git"},{"version":"ab6c637ad0276e42f8acabcbc64932a6d346dab3","lessThan":"0a36c1f72888bca0237295a4da19cd91821a90be","status":"affected","versionType":"git"},{"version":"ab6c637ad0276e42f8acabcbc64932a6d346dab3","lessThan":"6982653ce5f119982aa58f1af58e7bfbebf39252","status":"affected","versionType":"git"},{"version":"ab6c637ad0276e42f8acabcbc64932a6d346dab3","lessThan":"da1d615ce49a47986a8864e2371a26e97861085c","status":"affected","versionType":"git"},{"version":"ab6c637ad0276e42f8acabcbc64932a6d346dab3","lessThan":"4d0a375887ab4d49e4da1ff10f9606cab8f7c3ad","status":"affected","versionType":"git"},{"version":"af3d2e0f3a54e67806959d161e613457772babc5","status":"affected","versionType":"git"},{"version":"4782968e0d631b0d8944dcfd4bf8fb49be087101","status":"affected","versionType":"git"},{"version":"6.4.16","lessThan":"6.5","status":"affected","versionType":"semver"},{"version":"6.5.3","lessThan":"6.6","status":"affected","versionType":"semver"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/bpf/verifier.c"],"versions":[{"version":"6.6","status":"affected"},{"version":"0","lessThan":"6.6","status":"unaffected","versionType":"semver"},{"version":"6.6.141","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.91","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.33","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.0.10","lessThanOrEqual":"7.0.*","status":"unaffected","versionType":"semver"},{"version":"7.1","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":"6.6","versionEndExcluding":"6.6.141"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.12.91"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.18.33"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"7.0.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"7.1"},{"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"}]}]}],"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"}}}}