{"id":"CVE-2026-98678","revision":"b76cd42a9df14755a1d8572b28cbbad6","records":[{"revision":"b76cd42a9df14755a1d8572b28cbbad6","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98678","aliases":[],"title":"iio: adc: ad4030: fix invalid oversampling_ratio validation","description":"In the Linux kernel, the following vulnerability has been resolved:\n\niio: adc: ad4030: fix invalid oversampling_ratio validation\n\nIn ad4030_set_avg_frame_len(), the logarithm is calculated before input\nvalidation. Passing zero or negative values leads to an undefined result\nfrom ilog2().\n\nValidate that the input is strictly positive prior to computing its\nlogarithm.","state":0,"publishedAt":"2026-10-18T15:45:35.605+00:00","modifiedAt":"2026-10-19T09:23:47.783+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/iio/adc/ad4030.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"949abd1ca5a4342d9fb8c774035222e65dd1cfe4\",\n                            \"lessThan\": \"6b0cc4e32599f59c994a60743f53fc72cb2979f4\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"949abd1ca5a4342d9fb8c774035222e65dd1cfe4\",\n                            \"lessThan\": \"6ca6dcbaa68c5e6dc4df171a32c5822e1a4c66c1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"949abd1ca5a4342d9fb8c774035222e65dd1cfe4\",\n                            \"lessThan\": \"d615210564205993e8f0e7ccb57cc2e66b7d5706\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/iio/adc/ad4030.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.15\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.15\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.56\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.10\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/6b0cc4e32599f59c994a60743f53fc72cb2979f4","https://git.kernel.org/stable/c/6ca6dcbaa68c5e6dc4df171a32c5822e1a4c66c1","https://git.kernel.org/stable/c/d615210564205993e8f0e7ccb57cc2e66b7d5706"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98678","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98678","identifiers":["CVE-2026-98678"]},"retained":false,"historicalAffected":[]}],"coverage":[]}