CVE-2026-63935 (GCVE-0-2026-63935)

Vulnerability from cvelistv5 – Published: 2026-07-19 14:55 – Updated: 2026-07-19 14:55
VLAI
Title
iio: adc: nxp-sar-adc: fix division by zero in write_raw
Summary
In the Linux kernel, the following vulnerability has been resolved: iio: adc: nxp-sar-adc: fix division by zero in write_raw Add a validation check for the sampling frequency value before using it as a divisor. A user writing zero or a negative value to the sampling_frequency sysfs attribute triggers a division by zero in the kernel. Also prevent unsigned integer underflow when the computed cycle count is smaller than NXP_SAR_ADC_CONV_TIME, which would wrap the u32 inpsamp to a huge value.
Severity
No CVSS data available.
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 4434072a893e4864519c167947083ff3e4cc2d95 , < cb6ea15e7d3c7518f806975a06b7d4c0a26402ea (git)
Affected: 4434072a893e4864519c167947083ff3e4cc2d95 , < a9aba21a539c668a66b58eeb08ad3909e5a54c2a (git)
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Linux Linux Affected: 7.0
Unaffected: 0 , < 7.0 (semver)
Unaffected: 7.0.12 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website

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        }
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      "providerMetadata": {
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    "dateReserved": "2026-07-19T07:54:57.022Z",
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            "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."
          }
        ],
        "id": "CVE-2026-63935",
        "lastModified": "2026-07-27T17:44:23.777",
        "metrics": {},
        "published": "2026-07-19T16:17:11.987",
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      "source": "SUSE CSAF VEX",
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      "title": "SUSE CVE CVE-2026-63935",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-63935.json",
      "version": "4"
    }
  }
}



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