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

Vulnerability from cvelistv5 – Published: 2026-05-28 09:36 – Updated: 2026-06-19 11:59
VLAI
Title
mtd: spi-nor: debugfs: fix out-of-bounds read in spi_nor_params_show()
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.
Severity
7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 0257be79fc4a16a3252ce80aa13b3640f728c425 , < 231b8e1f604f6e0a7e100536f506cdf482e2c5f5 (git)
Affected: 0257be79fc4a16a3252ce80aa13b3640f728c425 , < 9a80c458320e0514e11945402dd6e48fcee05524 (git)
Affected: 0257be79fc4a16a3252ce80aa13b3640f728c425 , < ca18c180b053f6ce80394322b314ac721c316af7 (git)
Affected: 0257be79fc4a16a3252ce80aa13b3640f728c425 , < 34bdcfb496b29f9a52431194f94473b37fb8c162 (git)
Affected: 0257be79fc4a16a3252ce80aa13b3640f728c425 , < c0b654bc0b76a1da102d9138be1ed1223bd99310 (git)
Affected: 0257be79fc4a16a3252ce80aa13b3640f728c425 , < e47029b977e747cb3a9174308fd55762cce70147 (git)
Create a notification for this product.
Linux Linux Affected: 5.19
Unaffected: 0 , < 5.19 (semver)
Unaffected: 6.1.176 , ≤ 6.1.* (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 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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      "cve": "CVE-2026-46190",
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      "current_release_date": "2026-07-21T23:54:31Z",
      "cve": "CVE-2026-46190",
      "id": "CVE-2026-46190",
      "initial_release_date": "2026-05-29T01:15:29Z",
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      "product_status:recommended": "102",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-46190",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-46190.json",
      "version": "5"
    }
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.