CVE-2026-46074 (GCVE-0-2026-46074)

Vulnerability from cvelistv5 – Published: 2026-05-27 12:58 – Updated: 2026-05-27 12:58
VLAI
Title
spi: ch341: fix memory leaks on probe failures
Summary
In the Linux kernel, the following vulnerability has been resolved: spi: ch341: fix memory leaks on probe failures Make sure to deregister the controller, disable pins, and kill and free the RX URB on probe failures to mirror disconnect and avoid memory leaks and use-after-free. Also add an explicit URB kill on disconnect for symmetry (even if that is not strictly required as USB core would have stopped it in the current setup).
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 8846739f52afa07e63395c80227dc544f54bd7b1 , < 5c6518633702d7f7b1153e9d8e042af847f11ef3 (git)
Affected: 8846739f52afa07e63395c80227dc544f54bd7b1 , < ff8a7996dc8bf433efe2126ffdaee5b374a89e30 (git)
Affected: 8846739f52afa07e63395c80227dc544f54bd7b1 , < 9bee2faf9e21c796d0d222c9d84a98f41bd303a0 (git)
Affected: 8846739f52afa07e63395c80227dc544f54bd7b1 , < b99e3ddb91b499d920e63a2daff8880be68cfe9e (git)
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Linux Linux Affected: 6.11
Unaffected: 0 , < 6.11 (semver)
Unaffected: 6.12.86 , ≤ 6.12.* (semver)
Unaffected: 6.18.27 , ≤ 6.18.* (semver)
Unaffected: 7.0.4 , ≤ 7.0.* (semver)
Unaffected: 7.1-rc1 , ≤ * (original_commit_for_fix)
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{
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          "programFiles": [
            "drivers/spi/spi-ch341.c"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: ch341: fix memory leaks on probe failures\n\nMake sure to deregister the controller, disable pins, and kill and free\nthe RX URB on probe failures to mirror disconnect and avoid memory\nleaks and use-after-free.\n\nAlso add an explicit URB kill on disconnect for symmetry (even if that\nis not strictly required as USB core would have stopped it in the\ncurrent setup)."
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        "shortName": "Linux"
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    "cveId": "CVE-2026-46074",
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    "dateReserved": "2026-05-13T15:03:33.096Z",
    "dateUpdated": "2026-05-27T12:58:04.703Z",
    "state": "PUBLISHED"
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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.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • 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.


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