CVE-2026-46285 (GCVE-0-2026-46285)

Vulnerability from cvelistv5 – Published: 2026-06-08 15:41 – Updated: 2026-06-14 18:06
VLAI
Title
mtd: docg3: fix use-after-free in docg3_release()
Summary
In the Linux kernel, the following vulnerability has been resolved: mtd: docg3: fix use-after-free in docg3_release() In docg3_release(), the docg3 pointer is obtained from cascade->floors[0]->priv before the loop that calls doc_release_device() on each floor. doc_release_device() frees the docg3 struct via kfree(docg3) at line 1881. After the loop, docg3->cascade->bch dereferences the already-freed pointer. Fix this by accessing cascade->bch directly, which is equivalent since docg3->cascade points back to the same cascade struct, and is already available as a local variable. This also removes the now-unused docg3 local variable.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: c8ae3f744ddca0da164bcacee42d1d4b6fe7027d , < 8408655ec8344511667b61d8257dc59c80ee3391 (git)
Affected: c8ae3f744ddca0da164bcacee42d1d4b6fe7027d , < f5d2ed4ed47d3906e2495a3537a48b127f497a17 (git)
Affected: c8ae3f744ddca0da164bcacee42d1d4b6fe7027d , < 2bf706fe7831b319f23a85b9728f961cfed40c3e (git)
Affected: c8ae3f744ddca0da164bcacee42d1d4b6fe7027d , < d26f8c361f751c188b7ebaf8189aa0258968fd98 (git)
Affected: c8ae3f744ddca0da164bcacee42d1d4b6fe7027d , < 16f6588a3b7a2a20d10ad9b766be74c60ba347cc (git)
Affected: c8ae3f744ddca0da164bcacee42d1d4b6fe7027d , < d89044889ecd11b0c2f86663597246e9bdd25679 (git)
Affected: c8ae3f744ddca0da164bcacee42d1d4b6fe7027d , < d49628d63d4e6bbc8a1621afb88e5fc901611bee (git)
Affected: c8ae3f744ddca0da164bcacee42d1d4b6fe7027d , < ca19808bc6fac7e29420d8508df569b346b3e339 (git)
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Linux Linux Affected: 5.8
Unaffected: 0 , < 5.8 (semver)
Unaffected: 5.10.258 , ≤ 5.10.* (semver)
Unaffected: 5.15.209 , ≤ 5.15.* (semver)
Unaffected: 6.1.175 , ≤ 6.1.* (semver)
Unaffected: 6.6.140 , ≤ 6.6.* (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 , ≤ * (original_commit_for_fix)
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{
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          "programFiles": [
            "drivers/mtd/devices/docg3.c"
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              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
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              "lessThanOrEqual": "6.6.*",
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              "lessThanOrEqual": "6.12.*",
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              "version": "7.0.4",
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              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
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        }
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        "dateUpdated": "2026-06-14T18:06:23.744Z",
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        "shortName": "Linux"
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    "dateReserved": "2026-05-13T15:03:33.110Z",
    "dateUpdated": "2026-06-14T18:06:23.744Z",
    "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.

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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.


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