{"id":"CVE-2026-100074","state":"PUBLISHED","title":"bpf: Mark bpf_refcount field as unique","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Mark bpf_refcount field as unique\n\nBPF_REFCOUNT is not marked as a unique field, while it should be. Fix\nthis oversight.","publishedAt":"2026-09-25T13:06:46.777Z","updatedAt":"2026-10-21T12:38:46.286Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d54730b50bae1f3119bd686d551d66f0fcc387ca","status":"affected","lessThan":"015f9fbcf3382c5eb563a157ee8cabb6fbfcfe5e","versionType":"git"},{"version":"d54730b50bae1f3119bd686d551d66f0fcc387ca","status":"affected","lessThan":"20b3c72c1b83054c568d2322a95e217fdc281bc3","versionType":"git"},{"version":"d54730b50bae1f3119bd686d551d66f0fcc387ca","status":"affected","lessThan":"e42cede6f90177f4f92f80d3de18f628e61d2087","versionType":"git"},{"version":"d54730b50bae1f3119bd686d551d66f0fcc387ca","status":"affected","lessThan":"641f814965d733936ca3618d4d5a12a8fa9be00e","versionType":"git"},{"version":"d54730b50bae1f3119bd686d551d66f0fcc387ca","status":"affected","lessThan":"61e655391cb19c31f94ecd4354f624c81ce4cf75","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/bpf/btf.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.4","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.114","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/bpf/btf.c"]}],"references":["https://git.kernel.org/stable/c/015f9fbcf3382c5eb563a157ee8cabb6fbfcfe5e","https://git.kernel.org/stable/c/20b3c72c1b83054c568d2322a95e217fdc281bc3","https://git.kernel.org/stable/c/e42cede6f90177f4f92f80d3de18f628e61d2087","https://git.kernel.org/stable/c/641f814965d733936ca3618d4d5a12a8fa9be00e","https://git.kernel.org/stable/c/61e655391cb19c31f94ecd4354f624c81ce4cf75"],"weaknesses":[],"ingestedAt":"2026-10-29T20:10:13.529Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/100xxx/CVE-2026-100074.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-100074","state":"PUBLISHED","datePublished":"2026-09-25T13:06:46.777Z","dateUpdated":"2026-10-21T12:38:46.286Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.456Z"},"containers":{"cna":{"title":"bpf: Mark bpf_refcount field as unique","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Mark bpf_refcount field as unique\n\nBPF_REFCOUNT is not marked as a unique field, while it should be. Fix\nthis oversight."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d54730b50bae1f3119bd686d551d66f0fcc387ca","status":"affected","lessThan":"015f9fbcf3382c5eb563a157ee8cabb6fbfcfe5e","versionType":"git"},{"version":"d54730b50bae1f3119bd686d551d66f0fcc387ca","status":"affected","lessThan":"20b3c72c1b83054c568d2322a95e217fdc281bc3","versionType":"git"},{"version":"d54730b50bae1f3119bd686d551d66f0fcc387ca","status":"affected","lessThan":"e42cede6f90177f4f92f80d3de18f628e61d2087","versionType":"git"},{"version":"d54730b50bae1f3119bd686d551d66f0fcc387ca","status":"affected","lessThan":"641f814965d733936ca3618d4d5a12a8fa9be00e","versionType":"git"},{"version":"d54730b50bae1f3119bd686d551d66f0fcc387ca","status":"affected","lessThan":"61e655391cb19c31f94ecd4354f624c81ce4cf75","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/bpf/btf.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.4","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.114","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/bpf/btf.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/015f9fbcf3382c5eb563a157ee8cabb6fbfcfe5e"},{"url":"https://git.kernel.org/stable/c/20b3c72c1b83054c568d2322a95e217fdc281bc3"},{"url":"https://git.kernel.org/stable/c/e42cede6f90177f4f92f80d3de18f628e61d2087"},{"url":"https://git.kernel.org/stable/c/641f814965d733936ca3618d4d5a12a8fa9be00e"},{"url":"https://git.kernel.org/stable/c/61e655391cb19c31f94ecd4354f624c81ce4cf75"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-21T12:38:46.286Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.12.114"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.4","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}