{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-63935", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T07:54:57.022Z", "datePublished": "2026-07-19T14:55:33.321Z", "dateUpdated": "2026-07-19T14:55:33.321Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-07-19T14:55:33.321Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: adc: nxp-sar-adc: fix division by zero in write_raw\n\nAdd a validation check for the sampling frequency value before using it\nas a divisor. A user writing zero or a negative value to the\nsampling_frequency sysfs attribute triggers a division by zero in the\nkernel.\n\nAlso prevent unsigned integer underflow when the computed cycle count is\nsmaller than NXP_SAR_ADC_CONV_TIME, which would wrap the u32 inpsamp to\na huge value."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iio/adc/nxp-sar-adc.c"], "versions": [{"version": "4434072a893e4864519c167947083ff3e4cc2d95", "lessThan": "cb6ea15e7d3c7518f806975a06b7d4c0a26402ea", "status": "affected", "versionType": "git"}, {"version": "4434072a893e4864519c167947083ff3e4cc2d95", "lessThan": "a9aba21a539c668a66b58eeb08ad3909e5a54c2a", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iio/adc/nxp-sar-adc.c"], "versions": [{"version": "7.0", "status": "affected"}, {"version": "0", "lessThan": "7.0", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.12", "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": "7.0", "versionEndExcluding": "7.0.12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.0", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/cb6ea15e7d3c7518f806975a06b7d4c0a26402ea"}, {"url": "https://git.kernel.org/stable/c/a9aba21a539c668a66b58eeb08ad3909e5a54c2a"}], "title": "iio: adc: nxp-sar-adc: fix division by zero in write_raw", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"bugzilla": {"description": "kernel: iio: adc: nxp-sar-adc: fix division by zero in write_raw", "id": "2502442", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502442"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-369", "details": ["In the Linux kernel, the following vulnerability has been resolved:\niio: adc: nxp-sar-adc: fix division by zero in write_raw\nAdd a validation check for the sampling frequency value before using it\nas a divisor. A user writing zero or a negative value to the\nsampling_frequency sysfs attribute triggers a division by zero in the\nkernel.\nAlso prevent unsigned integer underflow when the computed cycle count is\nsmaller than NXP_SAR_ADC_CONV_TIME, which would wrap the u32 inpsamp to\na huge value.", "A flaw was found in the Linux kernel's NXP SAR Analog-to-Digital Converter (ADC) module. A local user can trigger a division-by-zero error by providing a zero or negative value to the sampling_frequency sysfs attribute. This vulnerability can lead to a denial of service (DoS) due to the kernel crashing. Additionally, an unsigned integer underflow can occur, potentially causing unexpected system behavior."], "name": "CVE-2026-63935", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-07-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-63935\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-63935\nhttps://lore.kernel.org/linux-cve-announce/2026071951-CVE-2026-63935-227a@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4434072a893e4864519c167947083ff3e4cc2d95,cb6ea15e7d3c7518f806975a06b7d4c0a26402ea)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4434072a893e4864519c167947083ff3e4cc2d95,a9aba21a539c668a66b58eeb08ad3909e5a54c2a)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "7.0"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.12,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-07-21T15:15:08.091873+00:00", "updated": "2026-07-21T23:15:12.855507+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-369", "CWE-190"]}