{"api_version":"1","generated_at":"2026-07-08T19:09:01+00:00","cve":"CVE-2026-53110","urls":{"html":"https://cve.report/CVE-2026-53110","api":"https://cve.report/api/cve/CVE-2026-53110.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53110","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53110"},"summary":{"title":"s390/bpf: Zero-extend bpf prog return values and kfunc arguments","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/bpf: Zero-extend bpf prog return values and kfunc arguments\n\ns390x ABI requires callers to zero-extend unsigned arguments and\nsign-extend signed arguments, and callees to zero-extend unsigned\nreturn values and sign-extend signed return values.\n\ns390 BPF JIT currently implements only sign extension. Fix this\nomission and implement zero extension too.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-06-24 17:17:25","updated_at":"2026-06-28 08:16:34"},"problem_types":[],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/366b0e05ee24f5ba62bdc7ec1346038258b9a797","name":"https://git.kernel.org/stable/c/366b0e05ee24f5ba62bdc7ec1346038258b9a797","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/202e42e4aa890172366354b233c42c73107a3f59","name":"https://git.kernel.org/stable/c/202e42e4aa890172366354b233c42c73107a3f59","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/edc90a12073b9a530064a99945c183dde120cb99","name":"https://git.kernel.org/stable/c/edc90a12073b9a530064a99945c183dde120cb99","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/44c4f999b03f55debb1a0c5ab5c1796895a1adf8","name":"https://git.kernel.org/stable/c/44c4f999b03f55debb1a0c5ab5c1796895a1adf8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/834918a77be51419383bf1dda9f02b81ecf26b34","name":"https://git.kernel.org/stable/c/834918a77be51419383bf1dda9f02b81ecf26b34","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53110","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53110","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 528eb2cb87bc1353235a6384696b4849bde8b0ba edc90a12073b9a530064a99945c183dde120cb99 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 528eb2cb87bc1353235a6384696b4849bde8b0ba 44c4f999b03f55debb1a0c5ab5c1796895a1adf8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 528eb2cb87bc1353235a6384696b4849bde8b0ba 366b0e05ee24f5ba62bdc7ec1346038258b9a797 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 528eb2cb87bc1353235a6384696b4849bde8b0ba 834918a77be51419383bf1dda9f02b81ecf26b34 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 528eb2cb87bc1353235a6384696b4849bde8b0ba 202e42e4aa890172366354b233c42c73107a3f59 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.3","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.3 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":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"53110","cve":"CVE-2026-53110","epss":"0.001200000","percentile":"0.021300000","score_date":"2026-06-30","updated_at":"2026-07-01 00:05:17"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/s390/net/bpf_jit_comp.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"edc90a12073b9a530064a99945c183dde120cb99","status":"affected","version":"528eb2cb87bc1353235a6384696b4849bde8b0ba","versionType":"git"},{"lessThan":"44c4f999b03f55debb1a0c5ab5c1796895a1adf8","status":"affected","version":"528eb2cb87bc1353235a6384696b4849bde8b0ba","versionType":"git"},{"lessThan":"366b0e05ee24f5ba62bdc7ec1346038258b9a797","status":"affected","version":"528eb2cb87bc1353235a6384696b4849bde8b0ba","versionType":"git"},{"lessThan":"834918a77be51419383bf1dda9f02b81ecf26b34","status":"affected","version":"528eb2cb87bc1353235a6384696b4849bde8b0ba","versionType":"git"},{"lessThan":"202e42e4aa890172366354b233c42c73107a3f59","status":"affected","version":"528eb2cb87bc1353235a6384696b4849bde8b0ba","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["arch/s390/net/bpf_jit_comp.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.3"},{"lessThan":"6.3","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":"6.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.91","versionStartIncluding":"6.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.33","versionStartIncluding":"6.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.10","versionStartIncluding":"6.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"6.3","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/bpf: Zero-extend bpf prog return values and kfunc arguments\n\ns390x ABI requires callers to zero-extend unsigned arguments and\nsign-extend signed arguments, and callees to zero-extend unsigned\nreturn values and sign-extend signed return values.\n\ns390 BPF JIT currently implements only sign extension. Fix this\nomission and implement zero extension too."}],"metrics":[{"cvssV3_1":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-06-28T06:39:20.484Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/edc90a12073b9a530064a99945c183dde120cb99"},{"url":"https://git.kernel.org/stable/c/44c4f999b03f55debb1a0c5ab5c1796895a1adf8"},{"url":"https://git.kernel.org/stable/c/366b0e05ee24f5ba62bdc7ec1346038258b9a797"},{"url":"https://git.kernel.org/stable/c/834918a77be51419383bf1dda9f02b81ecf26b34"},{"url":"https://git.kernel.org/stable/c/202e42e4aa890172366354b233c42c73107a3f59"}],"title":"s390/bpf: Zero-extend bpf prog return values and kfunc arguments","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-53110","datePublished":"2026-06-24T16:30:44.036Z","dateReserved":"2026-06-09T07:44:35.385Z","dateUpdated":"2026-06-28T06:39:20.484Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-24 17:17:25","lastModifiedDate":"2026-06-28 08:16:34","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:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"53110","Ordinal":"1","Title":"s390/bpf: Zero-extend bpf prog return values and kfunc arguments","CVE":"CVE-2026-53110","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53110","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/bpf: Zero-extend bpf prog return values and kfunc arguments\n\ns390x ABI requires callers to zero-extend unsigned arguments and\nsign-extend signed arguments, and callees to zero-extend unsigned\nreturn values and sign-extend signed return values.\n\ns390 BPF JIT currently implements only sign extension. Fix this\nomission and implement zero extension too.","Type":"Description","Title":"s390/bpf: Zero-extend bpf prog return values and kfunc arguments"}]}}}