Vulnerability-Lookup

FKIE_CVE-2026-46190

Vulnerability from fkie_nvd - Published: 2026-05-28 10:16 - Updated: 2026-06-11 03:10

Severity

7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: mtd: spi-nor: debugfs: fix out-of-bounds read in spi_nor_params_show() Sashiko noticed an out-of-bounds read [1]. In spi_nor_params_show(), the snor_f_names array is passed to spi_nor_print_flags() using sizeof(snor_f_names). Since snor_f_names is an array of pointers, sizeof() returns the total number of bytes occupied by the pointers (element_count * sizeof(void *)) rather than the element count itself. On 64-bit systems, this makes the passed length 8x larger than intended. Inside spi_nor_print_flags(), the 'names_len' argument is used to bounds-check the 'names' array access. An out-of-bounds read occurs if a flag bit is set that exceeds the array's actual element count but is within the inflated byte-size count. Correct this by using ARRAY_SIZE() to pass the actual number of string pointers in the array.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/34bdcfb496b29f9a52431194f94473b37fb8c162	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/9a80c458320e0514e11945402dd6e48fcee05524	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c0b654bc0b76a1da102d9138be1ed1223bd99310	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ca18c180b053f6ce80394322b314ac721c316af7	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e47029b977e747cb3a9174308fd55762cce70147	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	7.1

JSON

To clipboard

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: spi-nor: debugfs: fix out-of-bounds read in spi_nor_params_show()\n\nSashiko noticed an out-of-bounds read [1].\n\nIn spi_nor_params_show(), the snor_f_names array is passed to\nspi_nor_print_flags() using sizeof(snor_f_names).\n\nSince snor_f_names is an array of pointers, sizeof() returns the total\nnumber of bytes occupied by the pointers\n\t(element_count * sizeof(void *))\nrather than the element count itself. On 64-bit systems, this makes the\npassed length 8x larger than intended.\n\nInside spi_nor_print_flags(), the \u0027names_len\u0027 argument is used to\nbounds-check the \u0027names\u0027 array access. An out-of-bounds read occurs\nif a flag bit is set that exceeds the array\u0027s actual element count\nbut is within the inflated byte-size count.\n\nCorrect this by using ARRAY_SIZE() to pass the actual number of\nstring pointers in the array."
    }
  ],
  "id": "CVE-2026-46190",
  "lastModified": "2026-06-11T03:10:46.520",
  "metrics": {
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      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
          "version": "3.1"
        },
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        "impactScore": 5.2,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
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  "published": "2026-05-28T10:16:34.640",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
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          "lang": "en",
          "value": "CWE-125"
        }
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      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2026-46190 (GCVE-0-2026-46190)

Vulnerability from cvelistv5 – Published: 2026-05-28 09:36 – Updated: 2026-05-30 10:48

Title

mtd: spi-nor: debugfs: fix out-of-bounds read in spi_nor_params_show()

Summary

Severity

7.1 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Assigner

Linux

References

5 references

URL	Tags
https://git.kernel.org/stable/c/9a80c458320e0514e…
https://git.kernel.org/stable/c/ca18c180b053f6ce8…
https://git.kernel.org/stable/c/34bdcfb496b29f9a5…
https://git.kernel.org/stable/c/c0b654bc0b76a1da1…
https://git.kernel.org/stable/c/e47029b977e747cb3…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0257be79fc4a16a3252ce80aa13b3640f728c425 , < 9a80c458320e0514e11945402dd6e48fcee05524 (git) Affected: 0257be79fc4a16a3252ce80aa13b3640f728c425 , < ca18c180b053f6ce80394322b314ac721c316af7 (git) Affected: 0257be79fc4a16a3252ce80aa13b3640f728c425 , < 34bdcfb496b29f9a52431194f94473b37fb8c162 (git) Affected: 0257be79fc4a16a3252ce80aa13b3640f728c425 , < c0b654bc0b76a1da102d9138be1ed1223bd99310 (git) Affected: 0257be79fc4a16a3252ce80aa13b3640f728c425 , < e47029b977e747cb3a9174308fd55762cce70147 (git)
Linux	Linux	Affected: 5.19 Unaffected: 0 , < 5.19 (semver) Unaffected: 6.6.140 , ≤ 6.6.* (semver) Unaffected: 6.12.88 , ≤ 6.12.* (semver) Unaffected: 6.18.30 , ≤ 6.18.* (semver) Unaffected: 7.0.7 , ≤ 7.0.* (semver) Unaffected: 7.1-rc2 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

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            "drivers/mtd/spi-nor/debugfs.c"
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2026-46190

CVE-2026-46190 (GCVE-0-2026-46190)

Tags

Sightings

Nomenclature